Line data Source code
1 : /* do not edit automatically generated by mc from M2GenGCC. */
2 : /* M2GenGCC.mod convert the quadruples into GCC trees.
3 :
4 : Copyright (C) 2001-2026 Free Software Foundation, Inc.
5 : Contributed by Gaius Mulley <gaius.mulley@southwales.ac.uk>.
6 :
7 : This file is part of GNU Modula-2.
8 :
9 : GNU Modula-2 is free software; you can redistribute it and/or modify
10 : it under the terms of the GNU General Public License as published by
11 : the Free Software Foundation; either version 3, or (at your option)
12 : any later version.
13 :
14 : GNU Modula-2 is distributed in the hope that it will be useful, but
15 : WITHOUT ANY WARRANTY; without even the implied warranty of
16 : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 : General Public License for more details.
18 :
19 : You should have received a copy of the GNU General Public License
20 : along with GNU Modula-2; see the file COPYING3. If not see
21 : <http://www.gnu.org/licenses/>. */
22 :
23 : #include "config.h"
24 : #include "system.h"
25 : #include "gcc-consolidation.h"
26 :
27 : #include <stdbool.h>
28 : # if !defined (PROC_D)
29 : # define PROC_D
30 : typedef void (*PROC_t) (void);
31 : typedef struct { PROC_t proc; } PROC;
32 : # endif
33 :
34 : # if !defined (TRUE)
35 : # define TRUE (1==1)
36 : # endif
37 :
38 : # if !defined (FALSE)
39 : # define FALSE (1==0)
40 : # endif
41 :
42 : # include "Gmcrts.h"
43 : #if defined(__cplusplus)
44 : # undef NULL
45 : # define NULL 0
46 : #endif
47 : #define _M2GenGCC_C
48 :
49 : #include "GM2GenGCC.h"
50 : # include "GSYSTEM.h"
51 : # include "GSymbolTable.h"
52 : # include "Gm2tree.h"
53 : # include "Ggcctypes.h"
54 : # include "GM2Batch.h"
55 : # include "GM2LexBuf.h"
56 : # include "GM2Code.h"
57 : # include "GM2Debug.h"
58 : # include "GM2Error.h"
59 : # include "GM2MetaError.h"
60 : # include "GM2Options.h"
61 : # include "GM2Printf.h"
62 : # include "GM2Quiet.h"
63 : # include "GM2Base.h"
64 : # include "GM2Bitset.h"
65 : # include "GNameKey.h"
66 : # include "GDynamicStrings.h"
67 : # include "GFormatStrings.h"
68 : # include "GM2System.h"
69 : # include "GM2FileName.h"
70 : # include "GSymbolConversion.h"
71 : # include "GM2StackWord.h"
72 : # include "GLists.h"
73 : # include "GM2ALU.h"
74 : # include "GM2GCCDeclare.h"
75 : # include "GM2Range.h"
76 : # include "Gm2builtins.h"
77 : # include "Gm2expr.h"
78 : # include "Gm2decl.h"
79 : # include "Gm2statement.h"
80 : # include "Gm2type.h"
81 : # include "Gm2block.h"
82 : # include "Gm2misc.h"
83 : # include "Gm2convert.h"
84 : # include "Gm2except.h"
85 : # include "GM2Quads.h"
86 : # include "GM2Check.h"
87 : # include "GM2SSA.h"
88 : # include "GM2Optimize.h"
89 : # include "GM2BasicBlock.h"
90 :
91 : # define Debugging false
92 : # define PriorityDebugging false
93 : # define CascadedDebugging false
94 : typedef struct M2GenGCC_UnaryProcedure_p M2GenGCC_UnaryProcedure;
95 :
96 : typedef struct M2GenGCC_ProcedureCardinal_p M2GenGCC_ProcedureCardinal;
97 :
98 : typedef struct M2GenGCC_BinaryFunction_p M2GenGCC_BinaryFunction;
99 :
100 : typedef struct M2GenGCC_UnaryFunction_p M2GenGCC_UnaryFunction;
101 :
102 : # define Verbose false
103 : # define DebugTokPos false
104 : # define DebugTokPos false
105 : typedef void (*M2GenGCC_UnaryProcedure_t) (unsigned int);
106 : struct M2GenGCC_UnaryProcedure_p { M2GenGCC_UnaryProcedure_t proc; };
107 :
108 : typedef void (*M2GenGCC_ProcedureCardinal_t) (unsigned int);
109 : struct M2GenGCC_ProcedureCardinal_p { M2GenGCC_ProcedureCardinal_t proc; };
110 :
111 : typedef tree (*M2GenGCC_BinaryFunction_t) (location_t, tree, tree);
112 : struct M2GenGCC_BinaryFunction_p { M2GenGCC_BinaryFunction_t proc; };
113 :
114 : typedef tree (*M2GenGCC_UnaryFunction_t) (location_t, tree);
115 : struct M2GenGCC_UnaryFunction_p { M2GenGCC_UnaryFunction_t proc; };
116 :
117 : static unsigned int Memset;
118 : static unsigned int Memcpy;
119 : static unsigned int CurrentQuadToken;
120 : static unsigned int UnboundedLabelNo;
121 : static unsigned int LastLine;
122 : static M2Quads_QuadOperator LastOperator;
123 : static M2StackWord_StackOfWord ScopeStack;
124 : static bool NoChange;
125 : static unsigned int SetTemporaryNo;
126 : static unsigned int BreakQuad;
127 : static tree tryBlock;
128 : static tree handlerBlock;
129 :
130 : /*
131 : ConvertQuadsToTree - runs through the quadruple list and converts it into
132 : the GCC tree structure.
133 : */
134 :
135 : extern "C" void M2GenGCC_ConvertQuadsToTree (unsigned int Start, unsigned int End);
136 :
137 : /*
138 : ResolveConstantExpressions - resolves constant expressions from the quadruple list.
139 : It returns TRUE if one or more constants were folded.
140 : When a constant symbol value is solved, the call back
141 : p(sym) is invoked.
142 : */
143 :
144 : extern "C" bool M2GenGCC_ResolveConstantExpressions (M2GCCDeclare_WalkAction p, M2BasicBlock_BasicBlock bb);
145 :
146 : /*
147 : GetHighFromUnbounded - returns a Tree containing the value of
148 : param.HIGH.
149 : */
150 :
151 : extern "C" tree M2GenGCC_GetHighFromUnbounded (location_t location, unsigned int dim, unsigned int param);
152 :
153 : /*
154 : StringToChar - if type=Char and str is a string (of size <= 1)
155 : then convert the string into a character constant.
156 : */
157 :
158 : extern "C" tree M2GenGCC_StringToChar (tree t, unsigned int type, unsigned int str);
159 :
160 : /*
161 : LValueToGenericPtr - returns a Tree representing symbol, sym.
162 : It coerces a lvalue into an internal pointer type
163 : */
164 :
165 : extern "C" tree M2GenGCC_LValueToGenericPtr (location_t location, unsigned int sym);
166 :
167 : /*
168 : ZConstToTypedConst - checks whether op1 and op2 are constants and
169 : coerces, t, appropriately.
170 : */
171 :
172 : extern "C" tree M2GenGCC_ZConstToTypedConst (tree t, unsigned int op1, unsigned int op2);
173 :
174 : /*
175 : PrepareCopyString - returns two trees:
176 : length number of bytes to be copied (including the nul if room)
177 : srcTreeType the new string type (with the extra nul character).
178 :
179 : Pre condition: destStrType the dest type string.
180 : src is the original string (without a nul)
181 : to be copied.
182 : Post condition: TRUE or FALSE is returned.
183 : if true length and srcTreeType will be assigned
184 : else length is set to the maximum length to be
185 : copied and srcTree is set to the max length
186 : which fits in dest.
187 : */
188 :
189 : extern "C" bool M2GenGCC_PrepareCopyString (unsigned int tokenno, tree *length, tree *srcTree, unsigned int src, unsigned int destStrType);
190 :
191 : /*
192 : ErrorMessageDecl - emit an error message together with declaration fragments of left
193 : and right if they are parameters or variables.
194 : */
195 :
196 : static void ErrorMessageDecl (unsigned int tok, const char *message_, unsigned int _message_high, unsigned int left, unsigned int right, bool iserror);
197 :
198 : /*
199 : IsExportedGcc - returns TRUE if this symbol should be (as far as the middle/backend of GCC)
200 : is concerned, exported.
201 : */
202 :
203 : static bool IsExportedGcc (unsigned int sym);
204 :
205 : /*
206 : IsCompilingMainModule -
207 : */
208 :
209 : static bool IsCompilingMainModule (unsigned int sym);
210 :
211 : /*
212 : CodeLastForIterator - call PerformLastForIterator allowing for
213 : a non constant last iterator value.
214 : */
215 :
216 : static void CodeLastForIterator (unsigned int quad);
217 :
218 : /*
219 : FoldLastForIterator - call PerformLastForIterator providing
220 : all operands are constant and are known by GCC.
221 : */
222 :
223 : static void FoldLastForIterator (unsigned int quad, M2GCCDeclare_WalkAction p);
224 : static void PerformLastForIterator (unsigned int quad, M2GCCDeclare_WalkAction p, bool constant);
225 :
226 : /*
227 : CodeStatement - A multi-way decision call depending on the current
228 : quadruple.
229 : */
230 :
231 : static void CodeStatement (unsigned int q);
232 :
233 : /*
234 : FindSize - given a Modula-2 symbol sym return a gcc tree
235 : constant representing the storage size in bytes.
236 : */
237 :
238 : static tree FindSize (unsigned int tokenno, unsigned int sym);
239 :
240 : /*
241 : FindType - returns the type of, Sym, if Sym is a TYPE then return Sym otherwise return GetType(Sym)
242 : */
243 :
244 : static unsigned int FindType (unsigned int Sym);
245 :
246 : /*
247 : BuildTreeFromInterface - generates a GCC tree from an interface definition.
248 : */
249 :
250 : static tree BuildTreeFromInterface (unsigned int sym);
251 :
252 : /*
253 : BuildTrashTreeFromInterface - generates a GCC string tree from an interface definition.
254 : */
255 :
256 : static tree BuildTrashTreeFromInterface (unsigned int sym);
257 :
258 : /*
259 : CodeInline - InlineOp is a quadruple which has the following format:
260 :
261 : InlineOp NulSym NulSym Sym
262 : */
263 :
264 : static void CodeInline (unsigned int quad);
265 :
266 : /*
267 : FoldStatementNote - set CurrentQuadToken to tokennno.
268 : */
269 :
270 : static void FoldStatementNote (unsigned int tokenno);
271 :
272 : /*
273 : CodeStatementNote - set CurrentQuadToken to tokennno and
274 : add a statement note.
275 : */
276 :
277 : static void CodeStatementNote (unsigned int tokenno);
278 :
279 : /*
280 : FoldRange - attempts to fold the range test.
281 : --fixme-- complete this.
282 : */
283 :
284 : static void FoldRange (unsigned int tokenno, unsigned int quad, unsigned int rangeno);
285 :
286 : /*
287 : CodeSaveException - op1 := op3(TRUE)
288 : */
289 :
290 : static void CodeSaveException (unsigned int des, unsigned int exceptionProcedure);
291 :
292 : /*
293 : CodeRestoreException - op1 := op3(op1).
294 : */
295 :
296 : static void CodeRestoreException (unsigned int des, unsigned int exceptionProcedure);
297 :
298 : /*
299 : PushScope -
300 : */
301 :
302 : static void PushScope (unsigned int sym);
303 :
304 : /*
305 : PopScope -
306 : */
307 :
308 : static void PopScope (void);
309 :
310 : /*
311 : GetActiveScope -
312 : */
313 :
314 : static unsigned int GetActiveScope (void);
315 :
316 : /*
317 : GetCurrentScopeDescription - returns a description of the current scope.
318 : */
319 :
320 : static DynamicStrings_String GetCurrentScopeDescription (void);
321 :
322 : /*
323 : CodeRange - encode the range test associated with op3.
324 : */
325 :
326 : static void CodeRange (unsigned int rangeId);
327 :
328 : /*
329 : CodeError - encode the error test associated with op3.
330 : */
331 :
332 : static void CodeError (unsigned int errorId);
333 :
334 : /*
335 : CodeModuleScope - ModuleScopeOp is a quadruple which has the following
336 : format:
337 :
338 : ModuleScopeOp _ _ moduleSym
339 :
340 : Its purpose is to reset the source file to another
341 : file, hence all line numbers emitted with the
342 : generated code will be relative to this source file.
343 : */
344 :
345 : static void CodeModuleScope (unsigned int moduleSym);
346 :
347 : /*
348 : CodeStartModFile - StartModFileOp is a quadruple which has the following
349 : format:
350 :
351 : StartModFileOp _ _ moduleSym
352 :
353 : A new source file has been encountered therefore
354 : set LastLine to 1.
355 : Call pushGlobalScope.
356 : */
357 :
358 : static void CodeStartModFile (unsigned int moduleSym);
359 :
360 : /*
361 : CodeStartDefFile - StartDefFileOp is a quadruple with the following
362 : format:
363 :
364 : StartDefFileOp _ _ moduleSym
365 :
366 : A new source file has been encountered therefore
367 : set LastLine to 1.
368 : Call pushGlobalScope.
369 : */
370 :
371 : static void CodeStartDefFile (unsigned int moduleSym);
372 :
373 : /*
374 : CodeEndFile - pops the GlobalScope.
375 : */
376 :
377 : static void CodeEndFile (void);
378 :
379 : /*
380 : CallInnerInit - produce a call to inner module initialization routine.
381 : */
382 :
383 : static void CallInnerInit (unsigned int moduleSym);
384 :
385 : /*
386 : CallInnerFinally - produce a call to inner module finalization routine.
387 : */
388 :
389 : static void CallInnerFinally (unsigned int moduleSym);
390 :
391 : /*
392 : CodeInitStart - emits starting code before the main BEGIN END of the
393 : current module.
394 : */
395 :
396 : static void CodeInitStart (unsigned int moduleSym, bool CompilingMainModule);
397 :
398 : /*
399 : CodeInitEnd - emits terminating code after the main BEGIN END of the
400 : current module.
401 : */
402 :
403 : static void CodeInitEnd (unsigned int moduleSym, bool CompilingMainModule);
404 :
405 : /*
406 : CodeFinallyStart - emits starting code before the main BEGIN END of the
407 : current module.
408 : */
409 :
410 : static void CodeFinallyStart (unsigned int moduleSym, bool CompilingMainModule);
411 :
412 : /*
413 : CodeFinallyEnd - emits terminating code after the main BEGIN END of the
414 : current module. It also creates the scaffold if the
415 : cflag was not present.
416 : */
417 :
418 : static void CodeFinallyEnd (unsigned int moduleSym, bool CompilingMainModule);
419 :
420 : /*
421 : GetAddressOfUnbounded - returns the address of the unbounded array contents.
422 : */
423 :
424 : static tree GetAddressOfUnbounded (location_t location, unsigned int param);
425 :
426 : /*
427 : GetSizeOfHighFromUnbounded - returns a Tree containing the value of
428 : param.HIGH * sizeof(unboundedType).
429 : The number of legal bytes this array
430 : occupies.
431 : */
432 :
433 : static tree GetSizeOfHighFromUnbounded (unsigned int tokenno, unsigned int param);
434 :
435 : /*
436 : MaybeDebugBuiltinAlloca - if DebugBuiltins is set
437 : then call Builtins.alloca_trace
438 : else call Builtins.alloca.
439 : */
440 :
441 : static tree MaybeDebugBuiltinAlloca (location_t location, unsigned int tok, tree high);
442 :
443 : /*
444 : MaybeDebugBuiltinMemcpy - if DebugBuiltins is set
445 : then call memcpy
446 : else call Builtins.memcpy.
447 : */
448 :
449 : static tree MaybeDebugBuiltinMemcpy (location_t location, tree src, tree dest, tree nbytes);
450 :
451 : /*
452 : MakeCopyUse - make a copy of the unbounded array and alter all references
453 : from the old unbounded array to the new unbounded array.
454 : The parameter, param, contains a RECORD
455 : ArrayAddress: ADDRESS ;
456 : ArrayHigh : CARDINAL ;
457 : END
458 : we simply declare a new array of size, ArrayHigh
459 : and set ArrayAddress to the address of the copy.
460 :
461 : Remember ArrayHigh == sizeof(Array)-sizeof(typeof(array))
462 : so we add 1 for the size and add 1 for a possible <nul>
463 : */
464 :
465 : static void MakeCopyUse (unsigned int tokenno, unsigned int param);
466 :
467 : /*
468 : GetParamAddress - returns the address of parameter, param.
469 : */
470 :
471 : static tree GetParamAddress (location_t location, unsigned int proc, unsigned int param);
472 :
473 : /*
474 : IsUnboundedWrittenTo - returns TRUE if the unbounded parameter
475 : might be written to, or if -funbounded-by-reference
476 : was _not_ specified.
477 : */
478 :
479 : static bool IsUnboundedWrittenTo (unsigned int proc, unsigned int param);
480 :
481 : /*
482 : GetParamSize - returns the size in bytes of, param.
483 : */
484 :
485 : static tree GetParamSize (unsigned int tokenno, unsigned int param);
486 :
487 : /*
488 : DoIsIntersection - jumps to, tLabel, if the ranges i1..i2 j1..j2 overlap
489 : else jump to, fLabel.
490 : */
491 :
492 : static void DoIsIntersection (unsigned int tokenno, tree ta, tree tb, tree tc, tree td, DynamicStrings_String tLabel, DynamicStrings_String fLabel);
493 :
494 : /*
495 : BuildCascadedIfThenElsif - mustCheck contains a list of variables which
496 : must be checked against the address of (proc, param, i).
497 : If the address matches we make a copy of the unbounded
498 : parameter (proc, param) and quit further checking.
499 : */
500 :
501 : static void BuildCascadedIfThenElsif (unsigned int tokenno, Lists_List mustCheck, unsigned int proc, unsigned int param);
502 :
503 : /*
504 : CheckUnboundedNonVarParameter - if non var unbounded parameter is written to
505 : then
506 : make a copy of the contents of this parameter
507 : and use the copy
508 : else if param
509 : is type compatible with any parameter, symv
510 : and at runtime its address matches symv
511 : then
512 : make a copy of the contents of this parameter
513 : and use the copy
514 : fi
515 : */
516 :
517 : static void CheckUnboundedNonVarParameter (unsigned int tokenno, Lists_List trashed, unsigned int proc, unsigned int param);
518 :
519 : /*
520 : IsParameterWritten - returns TRUE if a parameter, sym, is written to.
521 : */
522 :
523 : static bool IsParameterWritten (unsigned int proc, unsigned int sym);
524 :
525 : /*
526 : SaveNonVarUnboundedParameters - for each var parameter, symv, do
527 : not just unbounded var parameters, but _all_
528 : parameters
529 : if symv is written to
530 : then
531 : add symv to a compile list
532 : fi
533 : done
534 :
535 : for each parameter of procedure, symu, do
536 : if non var unbounded parameter is written to
537 : then
538 : make a copy of the contents of this parameter
539 : and use the copy
540 : else if
541 : symu is type compatible with any parameter, symv
542 : and at runtime its address matches symv
543 : then
544 : make a copy of the contents of this parameter
545 : and use the copy
546 : fi
547 : done
548 : */
549 :
550 : static void SaveNonVarUnboundedParameters (unsigned int tokenno, unsigned int proc);
551 :
552 : /*
553 : AutoInitVariable -
554 : */
555 :
556 : static void AutoInitVariable (location_t location, unsigned int sym);
557 :
558 : /*
559 : AutoInitialize - scope will be a procedure, module or defimp. All pointer
560 : variables are assigned to NIL.
561 : */
562 :
563 : static void AutoInitialize (location_t location, unsigned int scope);
564 :
565 : /*
566 : CodeNewLocalVar - Builds a new frame on the stack to contain the procedure
567 : local variables.
568 : */
569 :
570 : static void CodeNewLocalVar (unsigned int tokenno, unsigned int CurrentProcedure);
571 :
572 : /*
573 : CodeKillLocalVar - removes local variables and returns to previous scope.
574 : */
575 :
576 : static void CodeKillLocalVar (unsigned int CurrentProcedure);
577 :
578 : /*
579 : CodeProcedureScope - start a procedure scope for CurrentProcedure.
580 : */
581 :
582 : static void CodeProcedureScope (unsigned int CurrentProcedure);
583 :
584 : /*
585 : CodeReturnValue - places the operand into the return value space
586 : allocated by the function call.
587 : */
588 :
589 : static void CodeReturnValue (unsigned int quad);
590 :
591 : /*
592 : CodeCall - determines whether the procedure call is a direct call
593 : or an indirect procedure call.
594 : */
595 :
596 : static void CodeCall (unsigned int tokenno, unsigned int procedure);
597 :
598 : /*
599 : UseBuiltin - returns a Tree containing the builtin function
600 : and parameters. It should only be called if
601 : CanUseBuiltin or IsProcedureBuiltinAvailable returns TRUE.
602 : */
603 :
604 : static tree UseBuiltin (unsigned int tokenno, unsigned int Sym);
605 :
606 : /*
607 : CodeDirectCall - calls a function/procedure.
608 : */
609 :
610 : static tree CodeDirectCall (unsigned int tokenno, unsigned int procedure);
611 :
612 : /*
613 : CodeIndirectCall - calls a function/procedure indirectly.
614 : */
615 :
616 : static tree CodeIndirectCall (unsigned int tokenno, unsigned int ProcVar);
617 :
618 : /*
619 : ConvertTo - convert gcc tree, t, (which currently represents Modula-2 op3) into
620 : a symbol of, type.
621 : */
622 :
623 : static tree ConvertTo (tree t, unsigned int type, unsigned int op3);
624 :
625 : /*
626 : ConvertRHS - convert (t, rhs) into, type. (t, rhs) refer to the
627 : same entity t is a GCC Tree and, rhs, is a Modula-2
628 : symbol. It checks for char and strings
629 : first and then the remaining types.
630 : */
631 :
632 : static tree ConvertRHS (tree t, unsigned int type, unsigned int rhs);
633 :
634 : /*
635 : IsCoerceableParameter - returns TRUE if symbol, sym, is a
636 : coerceable parameter.
637 : */
638 :
639 : static bool IsCoerceableParameter (unsigned int sym);
640 :
641 : /*
642 : IsConstProcedure - returns TRUE if, p, is a const procedure.
643 : */
644 :
645 : static bool IsConstProcedure (unsigned int p);
646 :
647 : /*
648 : IsConstant - returns TRUE if symbol, p, is either a const or procedure.
649 : */
650 :
651 : static bool IsConstant (unsigned int p);
652 :
653 : /*
654 : CheckConvertCoerceParameter - ensure that actual parameter is the same as the nth of callee.
655 : */
656 :
657 : static tree CheckConvertCoerceParameter (unsigned int tokenno, unsigned int nth, unsigned int callee, unsigned int actual);
658 :
659 : /*
660 : CheckConstant - checks to see whether we should declare the constant.
661 : */
662 :
663 : static tree CheckConstant (unsigned int tokenno, unsigned int des, unsigned int expr);
664 :
665 : /*
666 : CodeMakeAdr - code the function MAKEADR.
667 : */
668 :
669 : static void CodeMakeAdr (unsigned int q, unsigned int op1, unsigned int op2, unsigned int op3);
670 :
671 : /*
672 : CodeBuiltinFunction - attempts to inline a function. Currently it only
673 : inlines the SYSTEM function MAKEADR.
674 : */
675 :
676 : static void CodeBuiltinFunction (unsigned int q, unsigned int nth, unsigned int func, unsigned int parameter);
677 :
678 : /*
679 : FoldMakeAdr - attempts to fold the function MAKEADR.
680 : */
681 :
682 : static void FoldMakeAdr (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int q, unsigned int op1, unsigned int op2, unsigned int op3);
683 :
684 : /*
685 : doParam - builds the parameter, op3, which is to be passed to
686 : procedure, op2. The number of the parameter is op1.
687 : */
688 :
689 : static void doParam (unsigned int paramtok, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3);
690 :
691 : /*
692 : FoldBuiltin - attempts to fold the gcc builtin function.
693 : */
694 :
695 : static void FoldBuiltin (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int q);
696 :
697 : /*
698 : FoldBuiltinFunction - attempts to inline a function. Currently it only
699 : inlines the SYSTEM function MAKEADR.
700 : */
701 :
702 : static void FoldBuiltinFunction (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int q, unsigned int op1, unsigned int op2, unsigned int op3);
703 :
704 : /*
705 : CodeParam - builds a parameter list.
706 : Note that we can ignore ModeOfAddr as any lvalue will
707 : have been created in a preceeding quadruple.
708 : */
709 :
710 : static void CodeParam (unsigned int quad);
711 :
712 : /*
713 : Replace - replace the entry for sym in the double entry bookkeeping with sym/tree.
714 : */
715 :
716 : static void Replace (unsigned int sym, tree gcc);
717 :
718 : /*
719 : CodeFunctValue - retrieves the function return value and assigns it
720 : into a variable.
721 : */
722 :
723 : static void CodeFunctValue (location_t location, unsigned int op1);
724 :
725 : /*
726 : FoldStringLength -
727 : */
728 :
729 : static void FoldStringLength (unsigned int quad, M2GCCDeclare_WalkAction p);
730 :
731 : /*
732 : FoldStringConvertM2nul - attempt to assign the des with the string contents from expr.
733 : It also marks the des as a m2 string which must be nul terminated.
734 : The front end uses double book keeping and it is easier to have
735 : different m2 string symbols each of which map onto a slightly different
736 : gcc string tree.
737 : */
738 :
739 : static void FoldStringConvertM2nul (unsigned int quad, M2GCCDeclare_WalkAction p);
740 :
741 : /*
742 : FoldStringConvertCnul -attempt to assign the des with the string contents from expr.
743 : It also marks the des as a C string which must be nul terminated.
744 : */
745 :
746 : static void FoldStringConvertCnul (unsigned int quad, M2GCCDeclare_WalkAction p);
747 : static void CodeAddr (unsigned int tokenno, unsigned int quad, unsigned int op1, unsigned int op3);
748 : static void FoldBecomes (M2GCCDeclare_WalkAction p, M2BasicBlock_BasicBlock bb, unsigned int quad);
749 :
750 : /*
751 : TryDeclareConst -
752 : */
753 :
754 : static void TryDeclareConst (unsigned int tokenno, unsigned int sym);
755 :
756 : /*
757 : RemoveQuad - remove quad and ensure p (des) is called.
758 : */
759 :
760 : static void RemoveQuad (M2GCCDeclare_WalkAction p, unsigned int des, unsigned int quad);
761 :
762 : /*
763 : DeclaredOperandsBecomes -
764 : */
765 :
766 : static bool DeclaredOperandsBecomes (M2GCCDeclare_WalkAction p, unsigned int quad);
767 :
768 : /*
769 : TypeCheckBecomes - returns TRUE if the type check succeeds.
770 : */
771 :
772 : static bool TypeCheckBecomes (M2GCCDeclare_WalkAction p, unsigned int quad);
773 :
774 : /*
775 : PerformFoldBecomes - attempts to fold quad. It propagates constant strings
776 : and attempts to declare des providing it is a constant
777 : and expr is resolved.
778 : */
779 :
780 : static void PerformFoldBecomes (M2GCCDeclare_WalkAction p, unsigned int quad);
781 :
782 : /*
783 : CodeTry - starts building a GCC 'try' node.
784 : */
785 :
786 : static void CodeTry (void);
787 :
788 : /*
789 : CodeThrow - builds a GCC 'throw' node.
790 : */
791 :
792 : static void CodeThrow (unsigned int value);
793 : static void CodeRetry (unsigned int destQuad);
794 : static void CodeCatchBegin (void);
795 : static void CodeCatchEnd (void);
796 :
797 : /*
798 : DescribeTypeError -
799 : */
800 :
801 : static void DescribeTypeError (unsigned int token, unsigned int op1, unsigned int op2);
802 :
803 : /*
804 : DefaultConvertGM2 - provides a simple mapping between
805 : front end data types and GCC equivalents.
806 : This is only used to aid assignment of
807 : typed constants.
808 : */
809 :
810 : static tree DefaultConvertGM2 (unsigned int sym);
811 :
812 : /*
813 : FoldConstBecomes - returns a Tree containing op3.
814 : The tree will have been folded and
815 : type converted if necessary.
816 : */
817 :
818 : static tree FoldConstBecomes (unsigned int tokenno, unsigned int op1, unsigned int op3);
819 :
820 : /*
821 : checkArrayElements - return TRUE if des or expr are not arrays.
822 : If they are arrays and have different number of
823 : elements return FALSE, otherwise TRUE.
824 : */
825 :
826 : static bool checkArrayElements (unsigned int des, unsigned int expr, unsigned int virtpos, unsigned int despos, unsigned int exprpos);
827 :
828 : /*
829 : CodeInitAddress -
830 : */
831 :
832 : static void CodeInitAddress (unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3);
833 :
834 : /*
835 : checkRecordTypes - returns TRUE if des is not a record or if the record
836 : is the same type as expr.
837 : */
838 :
839 : static bool checkRecordTypes (unsigned int des, unsigned int expr, unsigned int virtpos);
840 :
841 : /*
842 : checkIncorrectMeta - checks to see if des and expr are assignment compatible is allows
843 : generic system types to be assigned.
844 : */
845 :
846 : static bool checkIncorrectMeta (unsigned int des, unsigned int expr, unsigned int virtpos);
847 :
848 : /*
849 : checkBecomes - returns TRUE if the checks pass.
850 : */
851 :
852 : static bool checkBecomes (unsigned int des, unsigned int expr, unsigned int virtpos, unsigned int despos, unsigned int exprpos);
853 :
854 : /*
855 : checkDeclare - checks to see if sym is declared and if it is not then declare it.
856 : */
857 :
858 : static void checkDeclare (unsigned int sym);
859 :
860 : /*
861 : PerformCodeBecomes -
862 : */
863 :
864 : static void PerformCodeBecomes (location_t location, unsigned int virtpos, unsigned int des, unsigned int expr);
865 : static void CodeBecomes (unsigned int quad);
866 :
867 : /*
868 : getrvalue -
869 : */
870 :
871 : static tree getrvalue (location_t location, unsigned int expr, unsigned int type, bool islvalue);
872 :
873 : /*
874 : LValueToGenericPtrOrConvert - if sym is an lvalue then convert to pointer type
875 : else convert to type, type. Return the converted tree.
876 : */
877 :
878 : static tree LValueToGenericPtrOrConvert (unsigned int sym, tree type);
879 :
880 : /*
881 : FoldBinary - check whether we can fold the binop operation.
882 : */
883 :
884 : static void FoldBinary (unsigned int tokenno, M2GCCDeclare_WalkAction p, m2expr_BuildBinProcedure binop, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3);
885 :
886 : /*
887 : ConvertBinaryOperands -
888 : */
889 :
890 : static void ConvertBinaryOperands (location_t location, tree *tl, tree *tr, unsigned int type, unsigned int op2, unsigned int op3);
891 :
892 : /*
893 : CodeBinaryCheck - encode a binary arithmetic operation.
894 : */
895 :
896 : static void CodeBinaryCheck (m2expr_BuildBinCheckProcedure binop, unsigned int quad);
897 :
898 : /*
899 : MixTypesBinary - depending upon overflowCheck do not check pointer arithmetic.
900 : */
901 :
902 : static unsigned int MixTypesBinary (unsigned int left, unsigned int right, unsigned int tokpos, bool overflowCheck);
903 :
904 : /*
905 : CodeBinary - encode a binary arithmetic operation.
906 : */
907 :
908 : static void CodeBinary (m2expr_BuildBinProcedure binop, unsigned int quad);
909 :
910 : /*
911 : NoWalkProcedure -
912 : */
913 :
914 : static void NoWalkProcedure (unsigned int param __attribute__((unused)));
915 :
916 : /*
917 : CheckBinaryExpressionTypes - returns TRUE if all expression checks pass.
918 : If the expression check fails quad is removed,
919 : the walk procedure (des) is called and NoChange is
920 : set to FALSE.
921 : */
922 :
923 : static bool CheckBinaryExpressionTypes (unsigned int quad, M2GCCDeclare_WalkAction p);
924 :
925 : /*
926 : CheckElementSetTypes - returns TRUE if all expression checks pass.
927 : If the expression check fails quad is removed,
928 : the walk procedure (des) is called and NoChange is
929 : set to FALSE.
930 : */
931 :
932 : static bool CheckElementSetTypes (unsigned int quad);
933 :
934 : /*
935 : CodeBinarySet - encode a binary set AND arithmetic operation.
936 : Set operands may be longer than a word.
937 : */
938 :
939 : static void CodeBinarySet (M2GenGCC_ProcedureCardinal constp, M2GenGCC_BinaryFunction binfunc, NameKey_Name wideprocname, unsigned int quad);
940 :
941 : /*
942 : MakeTemporarySetName - returns a Name using the template _Tset%d.
943 : */
944 :
945 : static NameKey_Name MakeTemporarySetName (void);
946 :
947 : /*
948 : SetWideBinary -
949 : */
950 :
951 : static void SetWideBinary (unsigned int tokenno, NameKey_Name wideprocname, unsigned int settype, unsigned int des, unsigned int left, unsigned int right);
952 :
953 : /*
954 : SetWideBinaryLibrary - call wideprocname (des, left, right) passing des, left, right
955 : as an array of byte.
956 : */
957 :
958 : static void SetWideBinaryLibrary (unsigned int tokenno, NameKey_Name wideprocname, unsigned int settype, unsigned int des, unsigned int left, unsigned int right);
959 :
960 : /*
961 : SetWideBinaryBuiltin - build an builtin wideset NOT operation.
962 : */
963 :
964 : static void SetWideBinaryBuiltin (unsigned int tokenno, M2GenGCC_BinaryFunction binfunc, unsigned int des, unsigned int left, unsigned int right);
965 :
966 : /*
967 : SetNarrowBinary - create tree consisting of:
968 : result := binfunc (left, right)
969 : result, left and right can be lvalues.
970 : */
971 :
972 : static void SetNarrowBinary (location_t location, M2GenGCC_BinaryFunction binfunc, unsigned int settype, unsigned int result, unsigned int left, unsigned int right);
973 :
974 : /*
975 : CreateSetArrayParam - return a gcc tree containing value contained in an unbounded
976 : array parameter.
977 : */
978 :
979 : static tree CreateSetArrayParam (location_t location, unsigned int tokenno, unsigned int value, unsigned int param);
980 :
981 : /*
982 : CheckUnaryOperand - checks to see whether operand is using a generic type.
983 : */
984 :
985 : static bool CheckUnaryOperand (unsigned int quad, unsigned int operand);
986 :
987 : /*
988 : UnaryOperand - returns TRUE if operand is acceptable for
989 : unary operator: + -. If FALSE
990 : is returned, an error message will be generated
991 : and the quad is deleted.
992 : */
993 :
994 : static bool UnaryOperand (unsigned int quad, unsigned int operand);
995 :
996 : /*
997 : CheckBinaryOperand - checks to see whether operand is using a generic type.
998 : */
999 :
1000 : static bool CheckBinaryOperand (unsigned int quad, bool isleft, unsigned int operand, bool result);
1001 :
1002 : /*
1003 : BinaryOperands - returns TRUE if, l, and, r, are acceptable for
1004 : binary operator: + - / * and friends. If FALSE
1005 : is returned, an error message will be generated
1006 : and the, quad, is deleted.
1007 : */
1008 :
1009 : static bool BinaryOperands (unsigned int quad, unsigned int l, unsigned int r);
1010 :
1011 : /*
1012 : IsConstStr - returns TRUE if sym is a constant string or a char constant.
1013 : */
1014 :
1015 : static bool IsConstStr (unsigned int sym);
1016 :
1017 : /*
1018 : IsConstStrKnown - returns TRUE if sym is a constant string or a char constant
1019 : which is known.
1020 : */
1021 :
1022 : static bool IsConstStrKnown (unsigned int sym);
1023 :
1024 : /*
1025 : GetStr - return a string containing a constant string value associated with sym.
1026 : A nul char constant will return an empty string.
1027 : */
1028 :
1029 : static DynamicStrings_String GetStr (unsigned int tokenno, unsigned int sym);
1030 :
1031 : /*
1032 : FoldAdd - check addition for constant folding. It checks for conststrings
1033 : overloading the +.
1034 : */
1035 :
1036 : static void FoldAdd (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3);
1037 :
1038 : /*
1039 : FoldArithAdd - check arithmetic addition for constant folding.
1040 : */
1041 :
1042 : static void FoldArithAdd (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3);
1043 :
1044 : /*
1045 : CodeAddChecked - code an addition instruction, determine whether checking
1046 : is required.
1047 : */
1048 :
1049 : static void CodeAddChecked (unsigned int quad, unsigned int left, unsigned int right);
1050 :
1051 : /*
1052 : CodeAddCheck - encode addition but check for overflow.
1053 : */
1054 :
1055 : static void CodeAddCheck (unsigned int quad, unsigned int left, unsigned int right);
1056 :
1057 : /*
1058 : CodeAdd - encode addition.
1059 : */
1060 :
1061 : static void CodeAdd (unsigned int quad, unsigned int left, unsigned int right);
1062 :
1063 : /*
1064 : FoldSub - check subtraction for constant folding.
1065 : */
1066 :
1067 : static void FoldSub (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3);
1068 :
1069 : /*
1070 : CodeSubChecked - code a subtract instruction, determine whether checking
1071 : is required.
1072 : */
1073 :
1074 : static void CodeSubChecked (unsigned int quad, unsigned int left, unsigned int right);
1075 :
1076 : /*
1077 : CodeSubCheck - encode subtraction but check for overflow.
1078 : */
1079 :
1080 : static void CodeSubCheck (unsigned int quad, unsigned int left, unsigned int right);
1081 :
1082 : /*
1083 : CodeSub - encode subtraction.
1084 : */
1085 :
1086 : static void CodeSub (unsigned int quad, unsigned int left, unsigned int right);
1087 :
1088 : /*
1089 : FoldMult - check multiplication for constant folding.
1090 : */
1091 :
1092 : static void FoldMult (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3);
1093 :
1094 : /*
1095 : CodeMultChecked - code a multiplication instruction, determine whether checking
1096 : is required.
1097 : */
1098 :
1099 : static void CodeMultChecked (unsigned int quad, unsigned int left, unsigned int right);
1100 :
1101 : /*
1102 : CodeMultCheck - encode multiplication but check for overflow.
1103 : */
1104 :
1105 : static void CodeMultCheck (unsigned int quad, unsigned int left, unsigned int right);
1106 :
1107 : /*
1108 : CodeMult - encode multiplication.
1109 : */
1110 :
1111 : static void CodeMult (unsigned int quad, unsigned int left, unsigned int right);
1112 :
1113 : /*
1114 : CodeDivM2Checked - code a divide instruction, determine whether checking
1115 : is required.
1116 : */
1117 :
1118 : static void CodeDivM2Checked (unsigned int quad, unsigned int left, unsigned int right);
1119 :
1120 : /*
1121 : CodeDivM2Check - encode addition but check for overflow.
1122 : */
1123 :
1124 : static void CodeDivM2Check (unsigned int quad, unsigned int left, unsigned int right);
1125 :
1126 : /*
1127 : CodeModM2Checked - code a modulus instruction, determine whether checking
1128 : is required.
1129 : */
1130 :
1131 : static void CodeModM2Checked (unsigned int quad, unsigned int left, unsigned int right);
1132 :
1133 : /*
1134 : CodeModM2Check - encode addition but check for overflow.
1135 : */
1136 :
1137 : static void CodeModM2Check (unsigned int quad, unsigned int left, unsigned int right);
1138 :
1139 : /*
1140 : BinaryOperandRealFamily -
1141 : */
1142 :
1143 : static bool BinaryOperandRealFamily (unsigned int op);
1144 :
1145 : /*
1146 : FoldDivM2 - check division for constant folding.
1147 : */
1148 :
1149 : static void FoldDivM2 (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3);
1150 :
1151 : /*
1152 : CodeDivM2 - encode division.
1153 : */
1154 :
1155 : static void CodeDivM2 (unsigned int quad, unsigned int left, unsigned int right);
1156 :
1157 : /*
1158 : FoldModM2 - check modulus for constant folding.
1159 : */
1160 :
1161 : static void FoldModM2 (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3);
1162 :
1163 : /*
1164 : CodeModM2 - encode modulus.
1165 : */
1166 :
1167 : static void CodeModM2 (unsigned int quad, unsigned int left, unsigned int right);
1168 :
1169 : /*
1170 : FoldDivTrunc - check division for constant folding.
1171 : */
1172 :
1173 : static void FoldDivTrunc (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3);
1174 :
1175 : /*
1176 : CodeDivTrunc - encode multiplication.
1177 : */
1178 :
1179 : static void CodeDivTrunc (unsigned int quad, unsigned int left, unsigned int right);
1180 :
1181 : /*
1182 : FoldModTrunc - check modulus for constant folding.
1183 : */
1184 :
1185 : static void FoldModTrunc (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3);
1186 :
1187 : /*
1188 : CodeModTrunc - encode modulus.
1189 : */
1190 :
1191 : static void CodeModTrunc (unsigned int quad, unsigned int left, unsigned int right);
1192 :
1193 : /*
1194 : FoldDivCeil - check division for constant folding.
1195 : */
1196 :
1197 : static void FoldDivCeil (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3);
1198 :
1199 : /*
1200 : CodeDivCeil - encode multiplication.
1201 : */
1202 :
1203 : static void CodeDivCeil (unsigned int quad, unsigned int left, unsigned int right);
1204 :
1205 : /*
1206 : FoldModCeil - check modulus for constant folding.
1207 : */
1208 :
1209 : static void FoldModCeil (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3);
1210 :
1211 : /*
1212 : CodeModCeil - encode multiplication.
1213 : */
1214 :
1215 : static void CodeModCeil (unsigned int quad, unsigned int left, unsigned int right);
1216 :
1217 : /*
1218 : FoldDivFloor - check division for constant folding.
1219 : */
1220 :
1221 : static void FoldDivFloor (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3);
1222 :
1223 : /*
1224 : CodeDivFloor - encode multiplication.
1225 : */
1226 :
1227 : static void CodeDivFloor (unsigned int quad, unsigned int left, unsigned int right);
1228 :
1229 : /*
1230 : FoldModFloor - check modulus for constant folding.
1231 : */
1232 :
1233 : static void FoldModFloor (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3);
1234 :
1235 : /*
1236 : CodeModFloor - encode modulus.
1237 : */
1238 :
1239 : static void CodeModFloor (unsigned int quad, unsigned int left, unsigned int right);
1240 :
1241 : /*
1242 : FoldBuiltinConst -
1243 : */
1244 :
1245 : static void FoldBuiltinConst (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int result, unsigned int constDesc);
1246 :
1247 : /*
1248 : FoldBuiltinTypeInfo - attempts to fold a builtin attribute value on type op2.
1249 : */
1250 :
1251 : static void FoldBuiltinTypeInfo (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3);
1252 :
1253 : /*
1254 : FoldTBitsize - attempt to fold the standard function SYSTEM.TBITSIZE
1255 : quadruple. If the quadruple is folded it is removed.
1256 : */
1257 :
1258 : static void FoldTBitsize (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int res, unsigned int type);
1259 :
1260 : /*
1261 : FoldStandardFunction - attempts to fold a standard function.
1262 : */
1263 :
1264 : static void FoldStandardFunction (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3);
1265 :
1266 : /*
1267 : CodeStandardFunction -
1268 : */
1269 :
1270 : static void CodeStandardFunction (unsigned int quad, unsigned int result, unsigned int function, unsigned int param);
1271 :
1272 : /*
1273 : CodeSavePriority - checks to see whether op2 is reachable and is directly accessible
1274 : externally. If so then it saves the current interrupt priority
1275 : in op1 and sets the current priority to that determined by
1276 : appropriate module.
1277 :
1278 : op1 := op3(GetModuleScope(op2))
1279 : */
1280 :
1281 : static void CodeSavePriority (unsigned int oldValue, unsigned int scopeSym, unsigned int procedureSym);
1282 :
1283 : /*
1284 : CodeRestorePriority - checks to see whether op2 is reachable and is directly accessible
1285 : externally. If so then it restores the previous interrupt priority
1286 : held in op1.
1287 :
1288 : op1 := op3(op1)
1289 : */
1290 :
1291 : static void CodeRestorePriority (unsigned int oldValue, unsigned int scopeSym, unsigned int procedureSym);
1292 :
1293 : /*
1294 : FoldBinarySet - attempts to fold set arithmetic it removes the quad if successful.
1295 : */
1296 :
1297 : static void FoldBinarySet (unsigned int tokenno, M2GCCDeclare_WalkAction p, M2GenGCC_ProcedureCardinal op, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3);
1298 :
1299 : /*
1300 : FoldSetOr - check whether we can fold a set arithmetic or.
1301 : */
1302 :
1303 : static void FoldSetOr (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3);
1304 :
1305 : /*
1306 : CodeSetOr - encode set arithmetic or.
1307 : */
1308 :
1309 : static void CodeSetOr (unsigned int quad);
1310 :
1311 : /*
1312 : FoldSetAnd - check whether we can fold a logical and.
1313 : */
1314 :
1315 : static void FoldSetAnd (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3);
1316 :
1317 : /*
1318 : CodeSetAnd - encode set arithmetic and.
1319 : */
1320 :
1321 : static void CodeSetAnd (unsigned int quad);
1322 :
1323 : /*
1324 : CalcHighSetBit - calculate the most significant bit used in a set starting from bit zero.
1325 : */
1326 :
1327 : static tree CalcHighSetBit (location_t location, unsigned int settype);
1328 :
1329 : /*
1330 : CalcBitsInSet - returns the number of minimum number of bits used to represent a set.
1331 : */
1332 :
1333 : static tree CalcBitsInSet (location_t location, unsigned int settype);
1334 :
1335 : /*
1336 : SetWideSetShiftRotate - generate a call:
1337 : M2WIDESET.name (dest, src, HIGHBIT (settype), count).
1338 : */
1339 :
1340 : static void SetWideSetShiftRotate (unsigned int tokenno, NameKey_Name name, unsigned int settype, unsigned int dest, unsigned int src, unsigned int count);
1341 :
1342 : /*
1343 : CodeNarrowSetShift -
1344 : */
1345 :
1346 : static void CodeNarrowSetShift (unsigned int tokenno, unsigned int settype, unsigned int dest, unsigned int src, unsigned int count);
1347 :
1348 : /*
1349 : CodeNarrowSetRotate -
1350 : */
1351 :
1352 : static void CodeNarrowSetRotate (unsigned int tokenno, unsigned int settype, unsigned int dest, unsigned int src, unsigned int count);
1353 :
1354 : /*
1355 : CodeBinarySetShiftRotate - encode a binary set arithmetic operation.
1356 : */
1357 :
1358 : static void CodeBinarySetShiftRotate (unsigned int quad, bool isshift);
1359 :
1360 : /*
1361 : FoldSetShift - check whether we can fold a logical shift.
1362 : */
1363 :
1364 : static void FoldSetShift (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int Dest, unsigned int Src, unsigned int ShiftCount);
1365 :
1366 : /*
1367 : CodeSetShift - encode set arithmetic shift.
1368 : */
1369 :
1370 : static void CodeSetShift (unsigned int quad);
1371 :
1372 : /*
1373 : FoldSetRotate - check whether we can fold a logical rotate.
1374 : */
1375 :
1376 : static void FoldSetRotate (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int Dest, unsigned int Src, unsigned int RotateCount);
1377 :
1378 : /*
1379 : CodeSetRotate - encode set arithmetic rotate.
1380 : */
1381 :
1382 : static void CodeSetRotate (unsigned int quad);
1383 :
1384 : /*
1385 : CodeSetLogicalDifference - encode set arithmetic logical difference.
1386 : */
1387 :
1388 : static void CodeSetLogicalDifference (unsigned int quad);
1389 :
1390 : /*
1391 : FoldSymmetricDifference - check whether we can fold a logical difference.
1392 : */
1393 :
1394 : static void FoldSymmetricDifference (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3);
1395 :
1396 : /*
1397 : CodeSetSymmetricDifference - code set difference.
1398 : A logical xor expression.
1399 : */
1400 :
1401 : static void CodeSetSymmetricDifference (unsigned int quad);
1402 :
1403 : /*
1404 : CodeUnarySet - encode a unary set arithmetic operation.
1405 : Set operands may be longer than a word.
1406 : */
1407 :
1408 : static void CodeUnarySet (M2GenGCC_ProcedureCardinal constop, M2GenGCC_UnaryFunction unfunc, unsigned int tokenno, NameKey_Name wideprocname, unsigned int quad, unsigned int result, unsigned int expr);
1409 :
1410 : /*
1411 : FromM2WIDESETImport - returns M2WIDESET.name.
1412 : */
1413 :
1414 : static unsigned int FromM2WIDESETImport (unsigned int tokenno, NameKey_Name name);
1415 :
1416 : /*
1417 : SetWideUnaryLibrary - call wideprocname (result, expr) passing result and expr
1418 : as an array of byte.
1419 : */
1420 :
1421 : static void SetWideUnaryLibrary (unsigned int tokenno, NameKey_Name wideprocname, unsigned int settype, unsigned int result, unsigned int expr);
1422 :
1423 : /*
1424 : SetWideUnaryBuiltinNot - build an builtin wideset NOT operation.
1425 : */
1426 :
1427 : static void SetWideUnaryBuiltinNot (unsigned int tokenno, unsigned int result, unsigned int expr);
1428 :
1429 : /*
1430 : SetWideUnary - either call the library wideprocname or the builtin
1431 : version depending upon the optimization setting.
1432 : */
1433 :
1434 : static void SetWideUnary (unsigned int tokenno, NameKey_Name wideprocname, unsigned int settype, unsigned int result, unsigned int expr);
1435 :
1436 : /*
1437 : SetNarrowUnary - create tree consisting of:
1438 : result := unfunc (expr)
1439 : result and expr can be lvalues.
1440 : */
1441 :
1442 : static void SetNarrowUnary (location_t location, M2GenGCC_UnaryFunction unfunc, unsigned int settype, unsigned int result, unsigned int expr);
1443 :
1444 : /*
1445 : FoldIncl - check whether we can fold the InclOp.
1446 : result := result + (1 << expr)
1447 : */
1448 :
1449 : static void FoldIncl (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int result, unsigned int expr);
1450 :
1451 : /*
1452 : FoldIfLess - check to see if it is possible to evaluate
1453 : if op1 < op2 then goto op3.
1454 : */
1455 :
1456 : static void FoldIfLess (unsigned int tokenno, unsigned int quad, unsigned int left, unsigned int right, unsigned int destQuad);
1457 :
1458 : /*
1459 : FoldIfGre - check to see if it is possible to evaluate
1460 : if op1 > op2 then goto op3.
1461 : */
1462 :
1463 : static void FoldIfGre (unsigned int tokenno, unsigned int quad, unsigned int left, unsigned int right, unsigned int destQuad);
1464 :
1465 : /*
1466 : FoldIfLessEqu - check to see if it is possible to evaluate
1467 : if op1 <= op2 then goto op3.
1468 : */
1469 :
1470 : static void FoldIfLessEqu (unsigned int tokenno, unsigned int quad, unsigned int left, unsigned int right, unsigned int destQuad);
1471 :
1472 : /*
1473 : FoldIfGreEqu - check to see if it is possible to evaluate
1474 : if op1 >= op2 then goto op3.
1475 : */
1476 :
1477 : static void FoldIfGreEqu (unsigned int tokenno, unsigned int quad, unsigned int left, unsigned int right, unsigned int destQuad);
1478 :
1479 : /*
1480 : FoldIfIn - check whether we can fold the IfInOp
1481 : if op1 in op2 then goto op3
1482 : */
1483 :
1484 : static void FoldIfIn (unsigned int tokenno, unsigned int quad, unsigned int left, unsigned int right, unsigned int destQuad);
1485 :
1486 : /*
1487 : FoldIfNotIn - check whether we can fold the IfNotInOp
1488 : if not (op1 in op2) then goto op3
1489 : */
1490 :
1491 : static void FoldIfNotIn (unsigned int tokenno, unsigned int quad, unsigned int left, unsigned int right, unsigned int destQuad);
1492 :
1493 : /*
1494 : FoldIfEqu - check to see if it is possible to evaluate
1495 : if op1 = op2 then goto op3.
1496 : */
1497 :
1498 : static void FoldIfEqu (unsigned int tokenno, unsigned int quad, unsigned int left, unsigned int right, unsigned int destQuad);
1499 :
1500 : /*
1501 : FoldIfNotEqu - check to see if it is possible to evaluate
1502 : if op1 # op2 then goto op3.
1503 : */
1504 :
1505 : static void FoldIfNotEqu (unsigned int tokenno, unsigned int quad, unsigned int left, unsigned int right, unsigned int destQuad);
1506 :
1507 : /*
1508 : GetSetLimits - assigns low and high to the limits of the declared, set.
1509 : */
1510 :
1511 : static void GetSetLimits (unsigned int set, unsigned int *low, unsigned int *high);
1512 :
1513 : /*
1514 : IsElementInRange - returns TRUE if expr references a bit in setvar
1515 : which is in the range [low..high]. If expr is a
1516 : variable it returns TRUE. FALSE is returned if we
1517 : know expr to be out of bounds.
1518 : */
1519 :
1520 : static bool IsElementInRange (unsigned int tokenno, unsigned int settype, unsigned int setvar, unsigned int expr);
1521 :
1522 : /*
1523 : SetElementToBit -
1524 : */
1525 :
1526 : static tree SetElementToBit (location_t location, unsigned int settype, unsigned int expr);
1527 :
1528 : /*
1529 : CodeNarrowIncl - result |= (1 << expr).
1530 : */
1531 :
1532 : static void CodeNarrowIncl (location_t location, unsigned int settype, unsigned int result, unsigned int expr);
1533 :
1534 : /*
1535 : CodeNarrowExcl - result &= (~ (1 << expr)).
1536 : */
1537 :
1538 : static void CodeNarrowExcl (location_t location, unsigned int settype, unsigned int result, unsigned int expr);
1539 :
1540 : /*
1541 : SetWideUnaryBuiltinIncl -
1542 : */
1543 :
1544 : static void SetWideUnaryBuiltinIncl (location_t location, tree dest, tree bitno);
1545 :
1546 : /*
1547 : SetWideUnaryBuiltinExcl -
1548 : */
1549 :
1550 : static void SetWideUnaryBuiltinExcl (location_t location, tree dest, tree bitno);
1551 : static void SetWideUnaryBuiltinInclExcl (unsigned int tokenno, unsigned int settype, unsigned int des, unsigned int expr, bool incl);
1552 :
1553 : /*
1554 : SetWideInclExcl - generates M2WIDESET.procedurename (result, expr).
1555 : */
1556 :
1557 : static void SetWideInclExcl (unsigned int tokenno, unsigned int settype, unsigned int result, unsigned int expr, NameKey_Name procedurename);
1558 :
1559 : /*
1560 : SetWideInclExclLibrary -
1561 : */
1562 :
1563 : static void SetWideInclExclLibrary (unsigned int tokenno, unsigned int settype, unsigned int result, unsigned int expr, NameKey_Name procedurename);
1564 :
1565 : /*
1566 : CodeIncl - encode an InclOp:
1567 : result |= (1 << expr).
1568 : */
1569 :
1570 : static void CodeIncl (unsigned int quad);
1571 :
1572 : /*
1573 : FoldExcl - check whether we can fold the InclOp.
1574 : result &= ~ (1 << expr).
1575 : */
1576 :
1577 : static void FoldExcl (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int result, unsigned int expr);
1578 :
1579 : /*
1580 : CodeExcl - encode an ExclOp:
1581 : result &= (~ (1 << expr)).
1582 : */
1583 :
1584 : static void CodeExcl (unsigned int quad);
1585 :
1586 : /*
1587 : FoldUnary - check whether we can fold the unop operation.
1588 : */
1589 :
1590 : static void FoldUnary (unsigned int tokenno, M2GCCDeclare_WalkAction p, m2expr_BuildUnaryProcedure unop, tree ZConstToTypedConst, unsigned int quad, unsigned int result, unsigned int expr);
1591 :
1592 : /*
1593 : FoldUnarySet - check whether we can fold the doOp operation.
1594 : */
1595 :
1596 : static void FoldUnarySet (unsigned int tokenno, M2GCCDeclare_WalkAction p, M2GenGCC_ProcedureCardinal doOp, unsigned int quad, unsigned int result, unsigned int expr);
1597 :
1598 : /*
1599 : CodeUnaryCheck - encode a unary arithmetic operation.
1600 : */
1601 :
1602 : static void CodeUnaryCheck (m2expr_BuildUnaryCheckProcedure unop, tree ZConstToTypedConst, unsigned int quad, unsigned int result, unsigned int expr);
1603 :
1604 : /*
1605 : CodeUnary - encode a unary arithmetic operation.
1606 : */
1607 :
1608 : static void CodeUnary (m2expr_BuildUnaryProcedure unop, tree ZConstToTypedConst, unsigned int quad, unsigned int result, unsigned int expr);
1609 :
1610 : /*
1611 : FoldNegate - check unary negate for constant folding.
1612 : */
1613 :
1614 : static void FoldNegate (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int result, unsigned int expr);
1615 :
1616 : /*
1617 : CodeNegateChecked - code a negate instruction, determine whether checking
1618 : is required.
1619 : */
1620 :
1621 : static void CodeNegateChecked (unsigned int quad);
1622 :
1623 : /*
1624 : FoldSize - check unary SIZE for constant folding.
1625 : */
1626 :
1627 : static void FoldSize (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3);
1628 :
1629 : /*
1630 : CodeSize - encode the inbuilt SIZE function.
1631 : */
1632 :
1633 : static void CodeSize (unsigned int result, unsigned int sym);
1634 :
1635 : /*
1636 : FoldRecordField - check whether we can fold an RecordFieldOp quadruple.
1637 : Very similar to FoldBinary, except that we need to
1638 : hard code a few parameters to the gcc backend.
1639 : */
1640 :
1641 : static void FoldRecordField (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int result, unsigned int record, unsigned int field);
1642 :
1643 : /*
1644 : CodeRecordField - encode a reference to a field within a record.
1645 : */
1646 :
1647 : static void CodeRecordField (unsigned int result, unsigned int record, unsigned int field);
1648 :
1649 : /*
1650 : BuildHighFromChar -
1651 : */
1652 :
1653 : static tree BuildHighFromChar (unsigned int operand);
1654 :
1655 : /*
1656 : SkipToArray -
1657 : */
1658 :
1659 : static unsigned int SkipToArray (unsigned int operand, unsigned int dim);
1660 :
1661 : /*
1662 : BuildHighFromArray -
1663 : */
1664 :
1665 : static tree BuildHighFromArray (unsigned int tokenno, unsigned int dim, unsigned int operand);
1666 :
1667 : /*
1668 : BuildHighFromSetArray -
1669 : */
1670 :
1671 : static tree BuildHighFromSetArray (unsigned int tokenno, unsigned int settype);
1672 :
1673 : /*
1674 : BuildHighFromStaticArray -
1675 : */
1676 :
1677 : static tree BuildHighFromStaticArray (location_t location, unsigned int Type);
1678 :
1679 : /*
1680 : BuildHighFromString -
1681 : */
1682 :
1683 : static tree BuildHighFromString (unsigned int operand);
1684 :
1685 : /*
1686 : ResolveHigh - given an Modula-2 operand, it resolves the HIGH(operand)
1687 : and returns a GCC constant symbol containing the value of
1688 : HIGH(operand).
1689 : */
1690 :
1691 : static tree ResolveHigh (unsigned int tokenno, unsigned int dim, unsigned int operand);
1692 :
1693 : /*
1694 : IsUnboundedArray - return TRUE if symbol is an unbounded array.
1695 : */
1696 :
1697 : static bool IsUnboundedArray (unsigned int sym);
1698 :
1699 : /*
1700 : FoldHigh - if the array is not dynamic then we should be able to
1701 : remove the HighOp quadruple and assign op1 with
1702 : the known compile time HIGH(array).
1703 : */
1704 :
1705 : static void FoldHigh (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int op1, unsigned int dim, unsigned int array);
1706 :
1707 : /*
1708 : CodeHigh - encode a unary arithmetic operation.
1709 : */
1710 :
1711 : static void CodeHigh (unsigned int result, unsigned int dim, unsigned int array);
1712 :
1713 : /*
1714 : CodeUnbounded - codes the creation of an unbounded parameter variable.
1715 : result = &array. array can be an lvalue or rvalue.
1716 : */
1717 :
1718 : static void CodeUnbounded (unsigned int result, unsigned int array);
1719 :
1720 : /*
1721 : AreSubrangesKnown - returns TRUE if the subranges values used within, array, are known.
1722 : */
1723 :
1724 : static bool AreSubrangesKnown (unsigned int array);
1725 :
1726 : /*
1727 : CodeArray - res is an lvalue which will point to the array element.
1728 : */
1729 :
1730 : static void CodeArray (unsigned int res, unsigned int index, unsigned int array);
1731 :
1732 : /*
1733 : FoldElementSizeForArray - attempts to calculate the Subscript
1734 : multiplier for the index op3.
1735 : */
1736 :
1737 : static void FoldElementSizeForArray (unsigned int tokenno, unsigned int quad, M2GCCDeclare_WalkAction p, unsigned int result, unsigned int type);
1738 :
1739 : /*
1740 : FoldElementSizeForUnbounded - Unbounded arrays only have one index,
1741 : therefore element size will be the
1742 : TSIZE(Type) where Type is defined as:
1743 : ARRAY OF Type.
1744 : */
1745 :
1746 : static void FoldElementSizeForUnbounded (unsigned int tokenno, unsigned int quad, M2GCCDeclare_WalkAction p, unsigned int result, unsigned int ArrayType);
1747 :
1748 : /*
1749 : FoldElementSize - folds the element size for an ArraySym or UnboundedSym.
1750 : ElementSize returns a constant which defines the
1751 : multiplier to be multiplied by this element index.
1752 : */
1753 :
1754 : static void FoldElementSize (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int result, unsigned int type);
1755 :
1756 : /*
1757 : PopKindTree - returns a Tree from M2ALU of the type implied by, op.
1758 : */
1759 :
1760 : static tree PopKindTree (unsigned int op, unsigned int tokenno);
1761 :
1762 : /*
1763 : FoldConvert - attempts to fold expr to type into result
1764 : providing that result and expr are constants.
1765 : If required convert will alter the machine representation
1766 : of expr to comply with type.
1767 : */
1768 :
1769 : static void FoldConvert (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int result, unsigned int type, unsigned int expr);
1770 :
1771 : /*
1772 : CodeConvert - Converts, rhs, to, type, placing the result into lhs.
1773 : Convert will, if need be, alter the machine representation
1774 : of op3 to comply with TYPE op2.
1775 : */
1776 :
1777 : static void CodeConvert (unsigned int quad, unsigned int lhs, unsigned int type, unsigned int rhs);
1778 :
1779 : /*
1780 : CodeCoerce - Coerce op3 to type op2 placing the result into
1781 : op1.
1782 : Coerce will NOT alter the machine representation
1783 : of op3 to comply with TYPE op2.
1784 : Therefore it _insists_ that under all circumstances that the
1785 : type sizes of op1 and op3 are the same.
1786 : CONVERT will perform machine manipulation to change variable
1787 : types, coerce does no such thing.
1788 : */
1789 :
1790 : static void CodeCoerce (unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3);
1791 :
1792 : /*
1793 : FoldCoerce -
1794 : */
1795 :
1796 : static void FoldCoerce (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3);
1797 :
1798 : /*
1799 : CanConvert - returns TRUE if we can convert variable, var, to a, type.
1800 : */
1801 :
1802 : static bool CanConvert (unsigned int type, unsigned int var);
1803 :
1804 : /*
1805 : CodeCast - Cast op3 to type op2 placing the result into op1.
1806 : Cast will NOT alter the machine representation
1807 : of op3 to comply with TYPE op2 as long as SIZE(op3)=SIZE(op2).
1808 : If the sizes differ then Convert is called.
1809 : */
1810 :
1811 : static void CodeCast (unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3);
1812 : static void FoldCast (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3);
1813 :
1814 : /*
1815 : CreateLabelProcedureN - creates a label using procedure name and
1816 : an integer.
1817 : */
1818 :
1819 : static DynamicStrings_String CreateLabelProcedureN (unsigned int proc, const char *leader_, unsigned int _leader_high, unsigned int unboundedCount, unsigned int n);
1820 :
1821 : /*
1822 : CreateLabelName - creates a namekey from quadruple, q.
1823 : */
1824 :
1825 : static DynamicStrings_String CreateLabelName (unsigned int q);
1826 :
1827 : /*
1828 : CodeGoto - creates a jump to a labeled quadruple.
1829 : */
1830 :
1831 : static void CodeGoto (unsigned int destquad);
1832 :
1833 : /*
1834 : CheckReferenced - checks to see whether this quadruple requires a label.
1835 : */
1836 :
1837 : static void CheckReferenced (unsigned int quad, M2Quads_QuadOperator op);
1838 :
1839 : /*
1840 : CodeIfSetCondition - code IF left cond right then destquad for set types.
1841 : */
1842 :
1843 : static void CodeIfSetCondition (unsigned int tokenno, unsigned int left, unsigned int right, unsigned int destquad, M2GenGCC_BinaryFunction cond, NameKey_Name procedurename);
1844 :
1845 : /*
1846 : CodeIfSetLess - code IF left < right then destquad for set types.
1847 : */
1848 :
1849 : static void CodeIfSetLess (unsigned int tokenno, unsigned int left, unsigned int right, unsigned int destquad);
1850 :
1851 : /*
1852 : CodeIfSetLessEqu - code IF left <= right then destquad for set types.
1853 : */
1854 :
1855 : static void CodeIfSetLessEqu (unsigned int tokenno, unsigned int left, unsigned int right, unsigned int destquad);
1856 :
1857 : /*
1858 : CodeIfSetGre - code IF left > right then destquad for set types.
1859 : */
1860 :
1861 : static void CodeIfSetGre (unsigned int tokenno, unsigned int left, unsigned int right, unsigned int destquad);
1862 :
1863 : /*
1864 : CodeIfSetGreEqu - code IF left >= right then destquad for set types.
1865 : */
1866 :
1867 : static void CodeIfSetGreEqu (unsigned int tokenno, unsigned int left, unsigned int right, unsigned int destquad);
1868 :
1869 : /*
1870 : PerformCodeIfLess - codes the quadruple if op1 < op2 then goto op3
1871 : */
1872 :
1873 : static void PerformCodeIfLess (unsigned int quad);
1874 :
1875 : /*
1876 : CodeIfLess - codes the quadruple if op1 < op2 then goto op3
1877 : */
1878 :
1879 : static void CodeIfLess (unsigned int quad);
1880 :
1881 : /*
1882 : CodeIfSetEquNarrow -
1883 : */
1884 :
1885 : static void CodeIfSetEquNarrow (location_t location, bool invertCondition, unsigned int settype, tree left, tree right, unsigned int destQuad);
1886 :
1887 : /*
1888 : CallSetWideBoolFunction - return a tree containing a call to
1889 : M2WIDESET.widefuncname (left, right, HIGHBIT (settype)).
1890 : */
1891 :
1892 : static tree CallSetWideBoolFunction (location_t location, unsigned int tokenno, NameKey_Name widefuncname, unsigned int settype, unsigned int left, unsigned int right);
1893 :
1894 : /*
1895 : CodeIfSetEquWide - creates a statement tree:
1896 : if left = right then goto destQuad. The boolean
1897 : invertCondition will check left # right.
1898 : */
1899 :
1900 : static void CodeIfSetEquWide (location_t location, unsigned int tokenno, bool invertCondition, unsigned int settype, unsigned int left, unsigned int right, unsigned int destQuad);
1901 :
1902 : /*
1903 : CodeIfSetEquLower code a comparison between left and right and if true
1904 : jump to destQuad. The invertCondition allows for the inverse test.
1905 : Note that if op1 and op2 are not both constants as this will have been
1906 : evaluated in CodeIfNotEqu.
1907 : */
1908 :
1909 : static void CodeIfSetEquLower (unsigned int tokenno, bool invertCondition, unsigned int left, unsigned int right, unsigned int destQuad);
1910 :
1911 : /*
1912 : CodeIfSetNotEqu - codes if op1 # op2 then goto op3
1913 : */
1914 :
1915 : static void CodeIfSetNotEqu (unsigned int tokenno, unsigned int left, unsigned int right, unsigned int destQuad);
1916 :
1917 : /*
1918 : CodeIfSetEqu - codes if op1 = op2 then goto op3
1919 : */
1920 :
1921 : static void CodeIfSetEqu (unsigned int tokenno, unsigned int left, unsigned int right, unsigned int destQuad);
1922 :
1923 : /*
1924 : PerformCodeIfGre - codes the quadruple if op1 > op2 then goto op3
1925 : */
1926 :
1927 : static void PerformCodeIfGre (unsigned int quad);
1928 :
1929 : /*
1930 : CodeIfGre - codes the quadruple if op1 > op2 then goto op3
1931 : */
1932 :
1933 : static void CodeIfGre (unsigned int quad);
1934 :
1935 : /*
1936 : PerformCodeIfLessEqu - codes the quadruple if op1 <= op2 then goto op3
1937 : */
1938 :
1939 : static void PerformCodeIfLessEqu (unsigned int quad);
1940 :
1941 : /*
1942 : CodeIfLessEqu - codes the quadruple if op1 <= op2 then goto op3
1943 : */
1944 :
1945 : static void CodeIfLessEqu (unsigned int quad);
1946 :
1947 : /*
1948 : PerformCodeIfGreEqu - codes the quadruple if op1 >= op2 then goto op3
1949 : */
1950 :
1951 : static void PerformCodeIfGreEqu (unsigned int quad);
1952 :
1953 : /*
1954 : CodeIfGreEqu - codes the quadruple if op1 >= op2 then goto op3
1955 : */
1956 :
1957 : static void CodeIfGreEqu (unsigned int quad);
1958 :
1959 : /*
1960 : ComparisonMixTypes -
1961 : */
1962 :
1963 : static unsigned int ComparisonMixTypes (unsigned int varleft, unsigned int varright, unsigned int left, unsigned int right, unsigned int tokpos);
1964 :
1965 : /*
1966 : PerformCodeIfEqu -
1967 : */
1968 :
1969 : static void PerformCodeIfEqu (unsigned int quad);
1970 :
1971 : /*
1972 : PerformCodeIfNotEqu -
1973 : */
1974 :
1975 : static void PerformCodeIfNotEqu (unsigned int quad);
1976 :
1977 : /*
1978 : IsValidExpressionRelOp - declare left and right constants (if they are not already declared).
1979 : Check whether left and right are expression compatible.
1980 : */
1981 :
1982 : static bool IsValidExpressionRelOp (unsigned int quad, bool isin);
1983 :
1984 : /*
1985 : CodeIfEqu - codes the quadruple if op1 = op2 then goto op3
1986 : */
1987 :
1988 : static void CodeIfEqu (unsigned int quad);
1989 :
1990 : /*
1991 : CodeIfNotEqu - codes the quadruple if op1 # op2 then goto op3
1992 : */
1993 :
1994 : static void CodeIfNotEqu (unsigned int quad);
1995 :
1996 : /*
1997 : MixTypes3 - returns a type compatible from, low, high, var.
1998 : */
1999 :
2000 : static unsigned int MixTypes3 (unsigned int low, unsigned int high, unsigned int var, unsigned int tokenno);
2001 :
2002 : /*
2003 : BuildIfVarInConstValue - if var in constsetvalue then goto trueexit
2004 : */
2005 :
2006 : static void BuildIfVarInConstValue (location_t location, unsigned int tokenno, M2ALU_PtrToValue constsetvalue, unsigned int var, unsigned int trueexit);
2007 :
2008 : /*
2009 : BuildIfNotVarInConstValue - if not (var in constsetvalue) then goto trueexit
2010 : */
2011 :
2012 : static void BuildIfNotVarInConstValue (location_t location, unsigned int tokenno, unsigned int quad, M2ALU_PtrToValue constsetvalue, unsigned int var, unsigned int trueexit);
2013 :
2014 : /*
2015 : SetWideIfIn - if M2WIDESET.In (set, element) then goto branch end.
2016 : */
2017 :
2018 : static void SetWideIfIn (location_t location, unsigned int tokenno, bool invertCondition, unsigned int settype, unsigned int element, unsigned int set, unsigned int branch);
2019 :
2020 : /*
2021 : CodeNarrowIfIn -
2022 : */
2023 :
2024 : static void CodeNarrowIfIn (location_t location, unsigned int settype, bool invertCondition, unsigned int element, unsigned int set, unsigned int branch);
2025 :
2026 : /*
2027 : CodeIfInLower - code the quadruple: if element in set then goto branch.
2028 : The invertCondition can be set to TRUE to handle CodeIfNotIn.
2029 : */
2030 :
2031 : static void CodeIfInLower (unsigned int tokenno, unsigned int quad, bool invertCondition, unsigned int element, unsigned int set, unsigned int branch);
2032 :
2033 : /*
2034 : PerformCodeIfIn -
2035 : */
2036 :
2037 : static void PerformCodeIfIn (unsigned int quad, bool invert);
2038 :
2039 : /*
2040 : CodeIfIn - code the quadruple: if element in set then goto branch.
2041 : */
2042 :
2043 : static void CodeIfIn (unsigned int quad);
2044 :
2045 : /*
2046 : CodeIfNotIn - code the quadruple: if not (element in set) then goto branch.
2047 : */
2048 :
2049 : static void CodeIfNotIn (unsigned int quad);
2050 : static void CodeIndrX (unsigned int quad);
2051 :
2052 : /*
2053 : CodeXIndr - operands for XIndrOp are: left type right.
2054 : *left = right. The second operand is the type of the data being
2055 : indirectly copied.
2056 : */
2057 :
2058 : static void CodeXIndr (unsigned int quad);
2059 :
2060 : /*
2061 : InitBuiltinSyms -
2062 : */
2063 :
2064 : static void InitBuiltinSyms (unsigned int tok);
2065 :
2066 : /*
2067 : gdbhook - a debugger convenience hook.
2068 : */
2069 :
2070 : static void gdbhook (void);
2071 :
2072 : /*
2073 : BreakWhenQuadTranslated - to be called interactively by gdb.
2074 : */
2075 :
2076 : static void BreakWhenQuadTranslated (unsigned int quad);
2077 :
2078 : /*
2079 : CheckBreak - if quad = BreakQuad then call gdbhook.
2080 : */
2081 :
2082 : static void CheckBreak (unsigned int quad);
2083 :
2084 : /*
2085 : Init -
2086 : */
2087 :
2088 : static void Init (void);
2089 :
2090 :
2091 : /*
2092 : ErrorMessageDecl - emit an error message together with declaration fragments of left
2093 : and right if they are parameters or variables.
2094 : */
2095 :
2096 12 : static void ErrorMessageDecl (unsigned int tok, const char *message_, unsigned int _message_high, unsigned int left, unsigned int right, bool iserror)
2097 : {
2098 12 : char message[_message_high+1];
2099 :
2100 : /* make a local copy of each unbounded array. */
2101 12 : memcpy (message, message_, _message_high+1);
2102 :
2103 12 : M2MetaError_MetaErrorT2 (tok, (const char *) message, _message_high, left, right);
2104 12 : M2MetaError_MetaErrorDecl (left, iserror);
2105 12 : M2MetaError_MetaErrorDecl (right, iserror);
2106 12 : }
2107 :
2108 :
2109 : /*
2110 : IsExportedGcc - returns TRUE if this symbol should be (as far as the middle/backend of GCC)
2111 : is concerned, exported.
2112 : */
2113 :
2114 105973 : static bool IsExportedGcc (unsigned int sym)
2115 : {
2116 105973 : unsigned int scope;
2117 :
2118 : /* Has a procedure been overridden as public? */
2119 105973 : if ((SymbolTable_IsProcedure (sym)) && (SymbolTable_IsPublic (sym)))
2120 : {
2121 : return true;
2122 : }
2123 : /* Check for whole program. */
2124 59951 : if (M2Options_WholeProgram)
2125 : {
2126 15816 : scope = SymbolTable_GetScope (sym);
2127 31632 : while (scope != SymbolTable_NulSym)
2128 : {
2129 15816 : if (SymbolTable_IsDefImp (scope))
2130 : {
2131 15792 : return SymbolTable_IsExported (scope, sym);
2132 : }
2133 24 : else if (SymbolTable_IsModule (scope))
2134 : {
2135 : /* avoid dangling else. */
2136 : return false;
2137 : }
2138 0 : scope = SymbolTable_GetScope (scope);
2139 : }
2140 0 : M2Error_InternalError ((const char *) "expecting scope to eventually reach a module or defimp symbol", 61);
2141 : }
2142 : else
2143 : {
2144 : /* Otherwise it is public if it were exported. */
2145 44135 : return SymbolTable_IsExported (SymbolTable_GetMainModule (), sym);
2146 : }
2147 : ReturnException ("/home/worker/buildworker/tiber-lcov/build/gcc/m2/gm2-compiler/M2GenGCC.def", 20, 1);
2148 : __builtin_unreachable ();
2149 : }
2150 :
2151 :
2152 : /*
2153 : IsCompilingMainModule -
2154 : */
2155 :
2156 192836 : static bool IsCompilingMainModule (unsigned int sym)
2157 : {
2158 331160 : while ((sym != SymbolTable_NulSym) && ((SymbolTable_GetMainModule ()) != sym))
2159 : {
2160 138324 : sym = SymbolTable_GetModuleScope (sym);
2161 : }
2162 192836 : return sym != SymbolTable_NulSym;
2163 : /* static analysis guarentees a RETURN statement will be used before here. */
2164 : __builtin_unreachable ();
2165 : }
2166 :
2167 :
2168 : /*
2169 : CodeLastForIterator - call PerformLastForIterator allowing for
2170 : a non constant last iterator value.
2171 : */
2172 :
2173 792 : static void CodeLastForIterator (unsigned int quad)
2174 : {
2175 0 : PerformLastForIterator (quad, (M2GCCDeclare_WalkAction) {(M2GCCDeclare_WalkAction_t) NoWalkProcedure}, false);
2176 792 : }
2177 :
2178 :
2179 : /*
2180 : FoldLastForIterator - call PerformLastForIterator providing
2181 : all operands are constant and are known by GCC.
2182 : */
2183 :
2184 14950 : static void FoldLastForIterator (unsigned int quad, M2GCCDeclare_WalkAction p)
2185 : {
2186 14950 : M2Quads_QuadOperator op;
2187 14950 : unsigned int e1;
2188 14950 : unsigned int e2;
2189 14950 : unsigned int op1;
2190 14950 : unsigned int tuple;
2191 14950 : unsigned int incr;
2192 :
2193 14950 : M2Quads_GetQuad (quad, &op, &op1, &tuple, &incr);
2194 14950 : M2Debug_Assert (SymbolTable_IsTuple (tuple));
2195 14950 : e1 = SymbolTable_GetNth (tuple, 1);
2196 14950 : e2 = SymbolTable_GetNth (tuple, 2);
2197 14950 : if (((((((SymbolTable_IsConst (op1)) && (SymbolTable_IsConst (e1))) && (SymbolTable_IsConst (e2))) && (SymbolTable_IsConst (incr))) && (SymbolConversion_GccKnowsAbout (e1))) && (SymbolConversion_GccKnowsAbout (e2))) && (SymbolConversion_GccKnowsAbout (incr)))
2198 : {
2199 1702 : PerformLastForIterator (quad, p, true);
2200 : }
2201 14950 : }
2202 :
2203 2494 : static void PerformLastForIterator (unsigned int quad, M2GCCDeclare_WalkAction p, bool constant)
2204 : {
2205 2494 : bool success;
2206 2494 : bool constExpr;
2207 2494 : bool overflowChecking;
2208 2494 : M2Quads_QuadOperator op;
2209 2494 : unsigned int lastpos;
2210 2494 : unsigned int op1pos;
2211 2494 : unsigned int op2pos;
2212 2494 : unsigned int incrpos;
2213 2494 : unsigned int last;
2214 2494 : unsigned int tuple;
2215 2494 : unsigned int incr;
2216 2494 : unsigned int e1;
2217 2494 : unsigned int e2;
2218 2494 : tree lasttree;
2219 2494 : tree e1tree;
2220 2494 : tree e2tree;
2221 2494 : tree expr;
2222 2494 : tree incrtree;
2223 2494 : location_t location;
2224 :
2225 : /*
2226 : FoldLastForIterator - generates code to calculate the last iterator value
2227 : in a for loop. It examines the increment constant
2228 : and generates different code depending whether it is
2229 : negative or positive.
2230 : */
2231 2494 : M2Quads_GetQuadOtok (quad, &lastpos, &op, &last, &tuple, &incr, &overflowChecking, &constExpr, &op1pos, &op2pos, &incrpos);
2232 2494 : M2GCCDeclare_DeclareConstant (incrpos, incr);
2233 2494 : lasttree = SymbolConversion_Mod2Gcc (last);
2234 2494 : success = true;
2235 2494 : if (SymbolTable_IsConst (incr))
2236 : {
2237 : /* avoid dangling else. */
2238 2494 : incrtree = SymbolConversion_Mod2Gcc (incr);
2239 2494 : location = M2LexBuf_TokenToLocation (lastpos);
2240 2494 : e1 = SymbolTable_GetNth (tuple, 1);
2241 2494 : e2 = SymbolTable_GetNth (tuple, 2);
2242 2494 : e1tree = SymbolConversion_Mod2Gcc (e1);
2243 2494 : e2tree = SymbolConversion_Mod2Gcc (e2);
2244 2494 : if ((m2expr_CompareTrees (incrtree, m2expr_GetIntegerZero (location))) == 0)
2245 : {
2246 6 : M2MetaError_MetaErrorT0 (lastpos, (const char *) "the {%kFOR} loop step value must not be zero", 44);
2247 6 : M2MetaError_MetaErrorDecl (incr, true);
2248 6 : NoChange = false;
2249 6 : M2Quads_SubQuad (quad);
2250 6 : success = false;
2251 : }
2252 2488 : else if ((m2expr_CompareTrees (incrtree, m2expr_GetIntegerZero (location))) > 0)
2253 : {
2254 : /* avoid dangling else. */
2255 : /* If incr > 0 then LastIterator := ((e2-e1) DIV incr) * incr + e1. */
2256 2278 : expr = m2expr_BuildSub (location, e2tree, e1tree, false);
2257 2278 : incrtree = m2convert_BuildConvert (location, m2type_GetTreeType (expr), incrtree, false);
2258 2278 : if (m2expr_TreeOverflow (incrtree))
2259 : {
2260 0 : M2MetaError_MetaErrorT0 (lastpos, (const char *) "the intemediate calculation for the last iterator value in the {%kFOR} loop has caused an overflow", 98);
2261 0 : NoChange = false;
2262 0 : M2Quads_SubQuad (quad);
2263 0 : success = false;
2264 : }
2265 : else
2266 : {
2267 2278 : expr = m2expr_BuildDivFloor (location, expr, incrtree, false);
2268 2278 : expr = m2expr_BuildMult (location, expr, incrtree, false);
2269 2278 : expr = m2expr_BuildAdd (location, expr, e1tree, false);
2270 : }
2271 : }
2272 : else
2273 : {
2274 : /* avoid dangling else. */
2275 : /* Else use LastIterator := e1 - ((e1-e2) DIV PositiveBy) * PositiveBy
2276 : to avoid unsigned div signed arithmetic. */
2277 210 : expr = m2expr_BuildSub (location, e1tree, e2tree, false);
2278 210 : incrtree = m2convert_BuildConvert (location, m2type_GetM2ZType (), incrtree, false);
2279 210 : incrtree = m2expr_BuildNegate (location, incrtree, false);
2280 210 : incrtree = m2convert_BuildConvert (location, m2type_GetTreeType (expr), incrtree, false);
2281 210 : if (m2expr_TreeOverflow (incrtree))
2282 : {
2283 0 : M2MetaError_MetaErrorT0 (lastpos, (const char *) "the intemediate calculation for the last iterator value in the {%kFOR} loop has caused an overflow", 98);
2284 0 : NoChange = false;
2285 0 : M2Quads_SubQuad (quad);
2286 0 : success = false;
2287 : }
2288 : else
2289 : {
2290 210 : expr = m2expr_BuildSub (location, e1tree, e2tree, false);
2291 210 : expr = m2expr_BuildDivFloor (location, expr, incrtree, false);
2292 210 : expr = m2expr_BuildMult (location, expr, incrtree, false);
2293 210 : expr = m2expr_BuildSub (location, e1tree, expr, false);
2294 : }
2295 : }
2296 2494 : if (success)
2297 : {
2298 : /* avoid gcc warning by using compound statement even if not strictly necessary. */
2299 2488 : if (SymbolTable_IsConst (last))
2300 : {
2301 1696 : SymbolConversion_AddModGcc (last, expr);
2302 1696 : (*p.proc) (last);
2303 1696 : NoChange = false;
2304 1696 : M2Quads_SubQuad (quad);
2305 : }
2306 : else
2307 : {
2308 792 : M2Debug_Assert (! constant);
2309 792 : m2statement_BuildAssignmentStatement (location, lasttree, expr);
2310 : }
2311 : }
2312 : }
2313 : else
2314 : {
2315 0 : M2MetaError_MetaErrorT1 (lastpos, (const char *) "the value {%1Ead} in the {%kBY} clause of the {%kFOR} loop must be constant", 75, incr);
2316 0 : M2MetaError_MetaErrorDecl (incr, true);
2317 0 : NoChange = false;
2318 0 : M2Quads_SubQuad (quad);
2319 : }
2320 2494 : }
2321 :
2322 :
2323 : /*
2324 : CodeStatement - A multi-way decision call depending on the current
2325 : quadruple.
2326 : */
2327 :
2328 4167916 : static void CodeStatement (unsigned int q)
2329 : {
2330 4167916 : M2Quads_QuadOperator op;
2331 4167916 : unsigned int op1;
2332 4167916 : unsigned int op2;
2333 4167916 : unsigned int op3;
2334 4167916 : location_t location;
2335 :
2336 4167916 : InitBuiltinSyms (M2LexBuf_BuiltinTokenNo);
2337 4167916 : M2Quads_GetQuad (q, &op, &op1, &op2, &op3);
2338 4167916 : CheckBreak (q);
2339 4167916 : if (op == M2Quads_StatementNoteOp)
2340 : {
2341 482879 : FoldStatementNote (op3); /* Will change CurrentQuadToken using op3. */
2342 : }
2343 : else
2344 : {
2345 3685037 : CurrentQuadToken = M2Quads_QuadToTokenNo (q);
2346 : }
2347 4167916 : location = M2LexBuf_TokenToLocation (CurrentQuadToken);
2348 4167916 : CheckReferenced (q, op);
2349 4167916 : if (M2Options_GetDebugTraceQuad ())
2350 : {
2351 0 : M2Printf_printf0 ((const char *) "building: ", 10);
2352 0 : M2Quads_DisplayQuad (q);
2353 : }
2354 4167916 : switch (op)
2355 : {
2356 156390 : case M2Quads_StartDefFileOp:
2357 156390 : CodeStartDefFile (op3);
2358 156390 : break;
2359 :
2360 81404 : case M2Quads_StartModFileOp:
2361 81404 : CodeStartModFile (op3);
2362 81404 : break;
2363 :
2364 81812 : case M2Quads_ModuleScopeOp:
2365 81812 : CodeModuleScope (op3);
2366 81812 : break;
2367 :
2368 237794 : case M2Quads_EndFileOp:
2369 237794 : CodeEndFile ();
2370 237794 : break;
2371 :
2372 81812 : case M2Quads_InitStartOp:
2373 81812 : CodeInitStart (op3, IsCompilingMainModule (op3));
2374 81812 : break;
2375 :
2376 81812 : case M2Quads_InitEndOp:
2377 81812 : CodeInitEnd (op3, IsCompilingMainModule (op3));
2378 81812 : break;
2379 :
2380 14606 : case M2Quads_FinallyStartOp:
2381 14606 : CodeFinallyStart (op3, IsCompilingMainModule (op3));
2382 14606 : break;
2383 :
2384 14606 : case M2Quads_FinallyEndOp:
2385 14606 : CodeFinallyEnd (op3, IsCompilingMainModule (op3));
2386 14606 : break;
2387 :
2388 76755 : case M2Quads_NewLocalVarOp:
2389 76755 : CodeNewLocalVar (op1, op3);
2390 76755 : break;
2391 :
2392 76749 : case M2Quads_KillLocalVarOp:
2393 76749 : CodeKillLocalVar (op3);
2394 76749 : break;
2395 :
2396 76761 : case M2Quads_ProcedureScopeOp:
2397 76761 : CodeProcedureScope (op3);
2398 76761 : break;
2399 :
2400 : case M2Quads_ReturnOp:
2401 : break;
2402 :
2403 27443 : case M2Quads_ReturnValueOp:
2404 27443 : CodeReturnValue (q); /* Not used as return is achieved by KillLocalVar. */
2405 27443 : break;
2406 :
2407 2890 : case M2Quads_TryOp:
2408 2890 : CodeTry ();
2409 2890 : break;
2410 :
2411 320 : case M2Quads_ThrowOp:
2412 320 : CodeThrow (op3);
2413 320 : break;
2414 :
2415 2890 : case M2Quads_CatchBeginOp:
2416 2890 : CodeCatchBegin ();
2417 2890 : break;
2418 :
2419 2890 : case M2Quads_CatchEndOp:
2420 2890 : CodeCatchEnd ();
2421 2890 : break;
2422 :
2423 156 : case M2Quads_RetryOp:
2424 156 : CodeRetry (op3);
2425 156 : break;
2426 :
2427 : case M2Quads_DummyOp:
2428 : break;
2429 :
2430 54 : case M2Quads_InitAddressOp:
2431 54 : CodeInitAddress (q, op1, op2, op3);
2432 54 : break;
2433 :
2434 189676 : case M2Quads_BecomesOp:
2435 189676 : CodeBecomes (q);
2436 189676 : break;
2437 :
2438 34062 : case M2Quads_ArithAddOp:
2439 34062 : case M2Quads_AddOp:
2440 34062 : CodeAddChecked (q, op2, op3);
2441 34062 : break;
2442 :
2443 10318 : case M2Quads_SubOp:
2444 10318 : CodeSubChecked (q, op2, op3);
2445 10318 : break;
2446 :
2447 11456 : case M2Quads_MultOp:
2448 11456 : CodeMultChecked (q, op2, op3);
2449 11456 : break;
2450 :
2451 1940 : case M2Quads_DivM2Op:
2452 1940 : CodeDivM2Checked (q, op2, op3);
2453 1940 : break;
2454 :
2455 2088 : case M2Quads_ModM2Op:
2456 2088 : CodeModM2Checked (q, op2, op3);
2457 2088 : break;
2458 :
2459 734 : case M2Quads_DivTruncOp:
2460 734 : CodeDivTrunc (q, op2, op3);
2461 734 : break;
2462 :
2463 0 : case M2Quads_ModTruncOp:
2464 0 : CodeModTrunc (q, op2, op3);
2465 0 : break;
2466 :
2467 0 : case M2Quads_DivCeilOp:
2468 0 : CodeDivCeil (q, op2, op3);
2469 0 : break;
2470 :
2471 0 : case M2Quads_ModCeilOp:
2472 0 : CodeModCeil (q, op2, op3);
2473 0 : break;
2474 :
2475 0 : case M2Quads_DivFloorOp:
2476 0 : CodeDivFloor (q, op2, op3);
2477 0 : break;
2478 :
2479 0 : case M2Quads_ModFloorOp:
2480 0 : CodeModFloor (q, op2, op3);
2481 0 : break;
2482 :
2483 44711 : case M2Quads_GotoOp:
2484 44711 : CodeGoto (op3);
2485 44711 : break;
2486 :
2487 1142 : case M2Quads_InclOp:
2488 1142 : CodeIncl (q);
2489 1142 : break;
2490 :
2491 754 : case M2Quads_ExclOp:
2492 754 : CodeExcl (q);
2493 754 : break;
2494 :
2495 996 : case M2Quads_NegateOp:
2496 996 : CodeNegateChecked (q);
2497 996 : break;
2498 :
2499 792 : case M2Quads_LastForIteratorOp:
2500 792 : CodeLastForIterator (q);
2501 792 : break;
2502 :
2503 676 : case M2Quads_LogicalShiftOp:
2504 676 : CodeSetShift (q);
2505 676 : break;
2506 :
2507 406 : case M2Quads_LogicalRotateOp:
2508 406 : CodeSetRotate (q);
2509 406 : break;
2510 :
2511 686 : case M2Quads_LogicalOrOp:
2512 686 : CodeSetOr (q);
2513 686 : break;
2514 :
2515 284 : case M2Quads_LogicalAndOp:
2516 284 : CodeSetAnd (q);
2517 284 : break;
2518 :
2519 124 : case M2Quads_LogicalXorOp:
2520 124 : CodeSetSymmetricDifference (q);
2521 124 : break;
2522 :
2523 66 : case M2Quads_LogicalDiffOp:
2524 66 : CodeSetLogicalDifference (q);
2525 66 : break;
2526 :
2527 3826 : case M2Quads_IfLessOp:
2528 3826 : CodeIfLess (q);
2529 3826 : break;
2530 :
2531 20726 : case M2Quads_IfEquOp:
2532 20726 : CodeIfEqu (q);
2533 20726 : break;
2534 :
2535 32029 : case M2Quads_IfNotEquOp:
2536 32029 : CodeIfNotEqu (q);
2537 32029 : break;
2538 :
2539 7076 : case M2Quads_IfGreEquOp:
2540 7076 : CodeIfGreEqu (q);
2541 7076 : break;
2542 :
2543 5766 : case M2Quads_IfLessEquOp:
2544 5766 : CodeIfLessEqu (q);
2545 5766 : break;
2546 :
2547 4606 : case M2Quads_IfGreOp:
2548 4606 : CodeIfGre (q);
2549 4606 : break;
2550 :
2551 532 : case M2Quads_IfInOp:
2552 532 : CodeIfIn (q);
2553 532 : break;
2554 :
2555 1866 : case M2Quads_IfNotInOp:
2556 1866 : CodeIfNotIn (q);
2557 1866 : break;
2558 :
2559 16429 : case M2Quads_IndrXOp:
2560 16429 : CodeIndrX (q);
2561 16429 : break;
2562 :
2563 43222 : case M2Quads_XIndrOp:
2564 43222 : CodeXIndr (q);
2565 43222 : break;
2566 :
2567 205633 : case M2Quads_CallOp:
2568 205633 : CodeCall (CurrentQuadToken, op3);
2569 205633 : break;
2570 :
2571 580352 : case M2Quads_ParamOp:
2572 580352 : CodeParam (q);
2573 580352 : break;
2574 :
2575 66389 : case M2Quads_FunctValueOp:
2576 66389 : CodeFunctValue (location, op1);
2577 66389 : break;
2578 :
2579 184481 : case M2Quads_AddrOp:
2580 184481 : CodeAddr (CurrentQuadToken, q, op1, op3);
2581 184481 : break;
2582 :
2583 0 : case M2Quads_SizeOp:
2584 0 : CodeSize (op1, op3);
2585 0 : break;
2586 :
2587 33615 : case M2Quads_UnboundedOp:
2588 33615 : CodeUnbounded (op1, op3);
2589 33615 : break;
2590 :
2591 138682 : case M2Quads_RecordFieldOp:
2592 138682 : CodeRecordField (op1, op2, op3);
2593 138682 : break;
2594 :
2595 38823 : case M2Quads_HighOp:
2596 38823 : CodeHigh (op1, op2, op3);
2597 38823 : break;
2598 :
2599 46734 : case M2Quads_ArrayOp:
2600 46734 : CodeArray (op1, op2, op3);
2601 46734 : break;
2602 :
2603 0 : case M2Quads_ElementSizeOp:
2604 0 : M2Error_InternalError ((const char *) "ElementSizeOp is expected to have been folded via constant evaluation", 69);
2605 51722 : break;
2606 :
2607 51722 : case M2Quads_ConvertOp:
2608 51722 : CodeConvert (q, op1, op2, op3);
2609 51722 : break;
2610 :
2611 1308 : case M2Quads_CoerceOp:
2612 1308 : CodeCoerce (q, op1, op2, op3);
2613 1308 : break;
2614 :
2615 126 : case M2Quads_CastOp:
2616 126 : CodeCast (q, op1, op2, op3);
2617 126 : break;
2618 :
2619 330 : case M2Quads_StandardFunctionOp:
2620 330 : CodeStandardFunction (q, op1, op2, op3);
2621 330 : break;
2622 :
2623 420 : case M2Quads_SavePriorityOp:
2624 420 : CodeSavePriority (op1, op2, op3);
2625 420 : break;
2626 :
2627 412 : case M2Quads_RestorePriorityOp:
2628 412 : CodeRestorePriority (op1, op2, op3);
2629 412 : break;
2630 :
2631 27 : case M2Quads_InlineOp:
2632 27 : CodeInline (q);
2633 27 : break;
2634 :
2635 482879 : case M2Quads_StatementNoteOp:
2636 482879 : CodeStatementNote (op3);
2637 482879 : break;
2638 :
2639 : case M2Quads_CodeOnOp:
2640 : break;
2641 :
2642 : case M2Quads_CodeOffOp:
2643 : break;
2644 :
2645 : case M2Quads_ProfileOnOp:
2646 : break;
2647 :
2648 : case M2Quads_ProfileOffOp:
2649 : break;
2650 :
2651 : case M2Quads_OptimizeOnOp:
2652 : break;
2653 :
2654 : case M2Quads_OptimizeOffOp:
2655 : break;
2656 :
2657 797732 : case M2Quads_RangeCheckOp:
2658 797732 : CodeRange (op3); /* The following make no sense with gcc. */
2659 797732 : break;
2660 :
2661 965 : case M2Quads_ErrorOp:
2662 965 : CodeError (op3);
2663 965 : break;
2664 :
2665 2890 : case M2Quads_SaveExceptionOp:
2666 2890 : CodeSaveException (op1, op3);
2667 2890 : break;
2668 :
2669 2830 : case M2Quads_RestoreExceptionOp:
2670 2830 : CodeRestoreException (op1, op3);
2671 2830 : break;
2672 :
2673 :
2674 0 : default:
2675 0 : M2Error_WriteFormat1 ((const char *) "quadruple %d not yet implemented", 32, (const unsigned char *) &q, (sizeof (q)-1));
2676 0 : M2Error_InternalError ((const char *) "quadruple not implemented yet", 29);
2677 4167904 : break;
2678 : }
2679 4167904 : LastOperator = op;
2680 4167904 : }
2681 :
2682 :
2683 : /*
2684 : FindSize - given a Modula-2 symbol sym return a gcc tree
2685 : constant representing the storage size in bytes.
2686 : */
2687 :
2688 29928 : static tree FindSize (unsigned int tokenno, unsigned int sym)
2689 : {
2690 29928 : location_t location;
2691 :
2692 29928 : location = M2LexBuf_TokenToLocation (tokenno);
2693 29928 : if (SymbolTable_IsConstString (sym))
2694 : {
2695 6432 : M2Debug_Assert (SymbolTable_IsConstStringKnown (sym));
2696 6432 : M2ALU_PushCard (SymbolTable_GetStringLength (tokenno, sym));
2697 6432 : return M2ALU_PopIntegerTree ();
2698 : }
2699 23496 : else if (SymbolTable_IsSizeSolved (sym))
2700 : {
2701 : /* avoid dangling else. */
2702 19960 : SymbolTable_PushSize (sym);
2703 19960 : return M2ALU_PopIntegerTree ();
2704 : }
2705 : else
2706 : {
2707 : /* avoid dangling else. */
2708 3536 : if (SymbolConversion_GccKnowsAbout (sym))
2709 : {
2710 3536 : if ((SymbolTable_IsVar (sym)) && (SymbolTable_IsVariableSSA (sym)))
2711 : {
2712 0 : sym = SymbolTable_GetType (sym);
2713 : }
2714 3536 : M2ALU_PushIntegerTree (m2expr_BuildSize (location, SymbolConversion_Mod2Gcc (sym), false));
2715 3536 : SymbolTable_PopSize (sym);
2716 3536 : SymbolTable_PushSize (sym);
2717 3536 : return M2ALU_PopIntegerTree ();
2718 : }
2719 0 : else if ((SymbolTable_IsVar (sym)) && (SymbolConversion_GccKnowsAbout (SymbolTable_GetType (sym))))
2720 : {
2721 : /* avoid dangling else. */
2722 0 : M2ALU_PushIntegerTree (m2expr_BuildSize (location, SymbolConversion_Mod2Gcc (SymbolTable_GetType (sym)), false));
2723 0 : return M2ALU_PopIntegerTree ();
2724 : }
2725 : else
2726 : {
2727 : /* avoid dangling else. */
2728 0 : M2Error_InternalError ((const char *) "expecting gcc to already know about this symbol", 47);
2729 : }
2730 : }
2731 : ReturnException ("/home/worker/buildworker/tiber-lcov/build/gcc/m2/gm2-compiler/M2GenGCC.def", 20, 1);
2732 : __builtin_unreachable ();
2733 : }
2734 :
2735 :
2736 : /*
2737 : FindType - returns the type of, Sym, if Sym is a TYPE then return Sym otherwise return GetType(Sym)
2738 : */
2739 :
2740 244222 : static unsigned int FindType (unsigned int Sym)
2741 : {
2742 244222 : if (SymbolTable_IsType (Sym))
2743 : {
2744 : return Sym;
2745 : }
2746 : else
2747 : {
2748 244222 : return SymbolTable_GetType (Sym);
2749 : }
2750 : /* static analysis guarentees a RETURN statement will be used before here. */
2751 : __builtin_unreachable ();
2752 : }
2753 :
2754 :
2755 : /*
2756 : BuildTreeFromInterface - generates a GCC tree from an interface definition.
2757 : */
2758 :
2759 54 : static tree BuildTreeFromInterface (unsigned int sym)
2760 : {
2761 54 : unsigned int tok;
2762 54 : unsigned int i;
2763 54 : NameKey_Name name;
2764 54 : unsigned int str;
2765 54 : unsigned int obj;
2766 54 : tree gccName;
2767 54 : tree asmTree;
2768 :
2769 54 : asmTree = (tree) (NULL);
2770 54 : if (sym != SymbolTable_NulSym)
2771 : {
2772 : i = 1;
2773 63 : do {
2774 63 : SymbolTable_GetRegInterface (sym, i, &tok, &name, &str, &obj);
2775 63 : if (str != SymbolTable_NulSym)
2776 : {
2777 : /* avoid gcc warning by using compound statement even if not strictly necessary. */
2778 33 : if (SymbolTable_IsConstString (str))
2779 : {
2780 : /* avoid dangling else. */
2781 33 : M2GCCDeclare_DeclareConstant (tok, obj);
2782 33 : if (name == NameKey_NulName)
2783 : {
2784 : gccName = NULL;
2785 : }
2786 : else
2787 : {
2788 6 : gccName = m2decl_BuildCStringConstant (const_cast <const char * > (static_cast <char * > (NameKey_KeyToCharStar (name))), static_cast<int> (NameKey_LengthKey (name)));
2789 : }
2790 33 : asmTree = m2type_ChainOnParamValue (asmTree, gccName, M2GCCDeclare_PromoteToCString (tok, str), m2tree_skip_const_decl (SymbolConversion_Mod2Gcc (obj)));
2791 33 : if (DebugTokPos)
2792 : {
2793 : M2Error_WarnStringAt (DynamicStrings_InitString ((const char *) "input expression", 16), tok);
2794 : }
2795 : }
2796 : else
2797 : {
2798 0 : M2MetaError_MetaErrorT1 (tok, (const char *) "a constraint to the GNU ASM statement must be a constant string and not a {%1Edv}", 81, str);
2799 : }
2800 : }
2801 63 : i += 1;
2802 63 : } while (! ((str == SymbolTable_NulSym) && (obj == SymbolTable_NulSym)));
2803 : }
2804 54 : return asmTree;
2805 : /* static analysis guarentees a RETURN statement will be used before here. */
2806 : __builtin_unreachable ();
2807 : }
2808 :
2809 :
2810 : /*
2811 : BuildTrashTreeFromInterface - generates a GCC string tree from an interface definition.
2812 : */
2813 :
2814 27 : static tree BuildTrashTreeFromInterface (unsigned int sym)
2815 : {
2816 27 : unsigned int tok;
2817 27 : unsigned int i;
2818 27 : unsigned int str;
2819 27 : unsigned int obj;
2820 27 : NameKey_Name name;
2821 27 : tree asmTree;
2822 :
2823 27 : asmTree = (tree) (NULL);
2824 27 : if (sym != SymbolTable_NulSym)
2825 : {
2826 : i = 1;
2827 6 : do {
2828 6 : SymbolTable_GetRegInterface (sym, i, &tok, &name, &str, &obj);
2829 6 : if (str != SymbolTable_NulSym)
2830 : {
2831 : /* avoid gcc warning by using compound statement even if not strictly necessary. */
2832 0 : if (SymbolTable_IsConstString (str))
2833 : {
2834 : /* avoid dangling else. */
2835 0 : asmTree = m2type_AddStringToTreeList (asmTree, M2GCCDeclare_PromoteToCString (tok, str));
2836 0 : if (DebugTokPos)
2837 : {
2838 : M2Error_WarnStringAt (DynamicStrings_InitString ((const char *) "trash expression", 16), tok);
2839 : }
2840 : }
2841 : else
2842 : {
2843 0 : M2MetaError_MetaErrorT1 (tok, (const char *) "a constraint to the GNU ASM statement must be a constant string and not a {%1Edv}", 81, str);
2844 : }
2845 : }
2846 6 : i += 1;
2847 6 : } while (! ((str == SymbolTable_NulSym) && (obj == SymbolTable_NulSym)));
2848 : }
2849 27 : return asmTree;
2850 : /* static analysis guarentees a RETURN statement will be used before here. */
2851 : __builtin_unreachable ();
2852 : }
2853 :
2854 :
2855 : /*
2856 : CodeInline - InlineOp is a quadruple which has the following format:
2857 :
2858 : InlineOp NulSym NulSym Sym
2859 : */
2860 :
2861 27 : static void CodeInline (unsigned int quad)
2862 : {
2863 27 : bool constExpr;
2864 27 : bool overflowChecking;
2865 27 : M2Quads_QuadOperator op;
2866 27 : unsigned int op1;
2867 27 : unsigned int op2;
2868 27 : unsigned int GnuAsm;
2869 27 : unsigned int op1pos;
2870 27 : unsigned int op2pos;
2871 27 : unsigned int op3pos;
2872 27 : unsigned int asmpos;
2873 27 : unsigned int string;
2874 27 : tree inputs;
2875 27 : tree outputs;
2876 27 : tree trash;
2877 27 : tree labels;
2878 27 : location_t location;
2879 :
2880 27 : M2Quads_GetQuadOtok (quad, &asmpos, &op, &op1, &op2, &GnuAsm, &overflowChecking, &constExpr, &op1pos, &op2pos, &op3pos);
2881 27 : location = M2LexBuf_TokenToLocation (asmpos);
2882 27 : inputs = BuildTreeFromInterface (SymbolTable_GetGnuAsmInput (GnuAsm));
2883 27 : outputs = BuildTreeFromInterface (SymbolTable_GetGnuAsmOutput (GnuAsm));
2884 27 : trash = BuildTrashTreeFromInterface (SymbolTable_GetGnuAsmTrash (GnuAsm));
2885 27 : labels = NULL; /* At present it makes no sence for Modula-2 to jump to a label,
2886 : given that labels are not allowed in Modula-2. */
2887 27 : string = SymbolTable_GetGnuAsm (GnuAsm); /* At present it makes no sence for Modula-2 to jump to a label,
2888 : given that labels are not allowed in Modula-2. */
2889 27 : m2statement_BuildAsm (location, M2GCCDeclare_PromoteToCString (SymbolTable_GetDeclaredMod (string), string), SymbolTable_IsGnuAsmVolatile (GnuAsm), SymbolTable_IsGnuAsmSimple (GnuAsm), inputs, outputs, trash, labels);
2890 27 : }
2891 :
2892 :
2893 : /*
2894 : FoldStatementNote - set CurrentQuadToken to tokennno.
2895 : */
2896 :
2897 10326971 : static void FoldStatementNote (unsigned int tokenno)
2898 : {
2899 10326971 : CurrentQuadToken = tokenno;
2900 482879 : }
2901 :
2902 :
2903 : /*
2904 : CodeStatementNote - set CurrentQuadToken to tokennno and
2905 : add a statement note.
2906 : */
2907 :
2908 482879 : static void CodeStatementNote (unsigned int tokenno)
2909 : {
2910 482879 : if (Debugging)
2911 : {
2912 : M2MetaError_MetaErrorT0 (tokenno, (const char *) "{%W} statement note", 19);
2913 : }
2914 482879 : CurrentQuadToken = tokenno;
2915 482879 : m2block_addStmtNote (M2LexBuf_TokenToLocation (tokenno));
2916 482879 : }
2917 :
2918 :
2919 : /*
2920 : FoldRange - attempts to fold the range test.
2921 : --fixme-- complete this.
2922 : */
2923 :
2924 14154527 : static void FoldRange (unsigned int tokenno, unsigned int quad, unsigned int rangeno)
2925 : {
2926 0 : M2Range_FoldRangeCheck (tokenno, quad, rangeno); /* p: WalkAction; */
2927 14154365 : }
2928 :
2929 :
2930 : /*
2931 : CodeSaveException - op1 := op3(TRUE)
2932 : */
2933 :
2934 2890 : static void CodeSaveException (unsigned int des, unsigned int exceptionProcedure)
2935 : {
2936 2890 : tree functValue;
2937 2890 : location_t location;
2938 :
2939 2890 : location = M2LexBuf_TokenToLocation (CurrentQuadToken);
2940 2890 : m2statement_BuildParam (location, SymbolConversion_Mod2Gcc (M2Base_True));
2941 2890 : m2statement_BuildFunctionCallTree (location, SymbolConversion_Mod2Gcc (exceptionProcedure), SymbolConversion_Mod2Gcc (SymbolTable_GetType (exceptionProcedure)));
2942 2890 : functValue = m2statement_BuildFunctValue (location, SymbolConversion_Mod2Gcc (des));
2943 2890 : m2type_AddStatement (location, functValue);
2944 2890 : }
2945 :
2946 :
2947 : /*
2948 : CodeRestoreException - op1 := op3(op1).
2949 : */
2950 :
2951 2830 : static void CodeRestoreException (unsigned int des, unsigned int exceptionProcedure)
2952 : {
2953 2830 : tree functValue;
2954 2830 : location_t location;
2955 :
2956 2830 : location = M2LexBuf_TokenToLocation (CurrentQuadToken);
2957 2830 : m2statement_BuildParam (location, SymbolConversion_Mod2Gcc (des));
2958 2830 : m2statement_BuildFunctionCallTree (location, SymbolConversion_Mod2Gcc (exceptionProcedure), SymbolConversion_Mod2Gcc (SymbolTable_GetType (exceptionProcedure)));
2959 2830 : functValue = m2statement_BuildFunctValue (location, SymbolConversion_Mod2Gcc (des));
2960 2830 : m2type_AddStatement (location, functValue);
2961 2830 : }
2962 :
2963 :
2964 : /*
2965 : PushScope -
2966 : */
2967 :
2968 396361 : static void PushScope (unsigned int sym)
2969 : {
2970 0 : M2StackWord_PushWord (ScopeStack, sym);
2971 0 : }
2972 :
2973 :
2974 : /*
2975 : PopScope -
2976 : */
2977 :
2978 76749 : static void PopScope (void)
2979 : {
2980 76749 : unsigned int sym;
2981 :
2982 76749 : sym = static_cast<unsigned int> (M2StackWord_PopWord (ScopeStack));
2983 76749 : M2Debug_Assert (sym != SymbolTable_NulSym);
2984 76749 : }
2985 :
2986 :
2987 : /*
2988 : GetActiveScope -
2989 : */
2990 :
2991 3288 : static unsigned int GetActiveScope (void)
2992 : {
2993 3288 : if (M2StackWord_IsEmptyWord (ScopeStack))
2994 : {
2995 0 : M2Error_InternalError ((const char *) "not expecting scope stack to be empty", 37);
2996 : }
2997 3288 : return static_cast<unsigned int> (M2StackWord_PeepWord (ScopeStack, 1));
2998 : /* static analysis guarentees a RETURN statement will be used before here. */
2999 : __builtin_unreachable ();
3000 : }
3001 :
3002 :
3003 : /*
3004 : GetCurrentScopeDescription - returns a description of the current scope.
3005 : */
3006 :
3007 798697 : static DynamicStrings_String GetCurrentScopeDescription (void)
3008 : {
3009 798697 : unsigned int sym;
3010 798697 : DynamicStrings_String n;
3011 :
3012 798697 : if (M2StackWord_IsEmptyWord (ScopeStack))
3013 : {
3014 0 : M2Error_InternalError ((const char *) "not expecting scope stack to be empty", 37);
3015 : }
3016 : else
3017 : {
3018 798697 : sym = static_cast<unsigned int> (M2StackWord_PeepWord (ScopeStack, 1));
3019 798697 : n = DynamicStrings_Mark (DynamicStrings_InitStringCharStar (NameKey_KeyToCharStar (SymbolTable_GetSymName (sym))));
3020 798697 : if (SymbolTable_IsDefImp (sym))
3021 : {
3022 4260 : return FormatStrings_Sprintf1 (DynamicStrings_Mark (DynamicStrings_InitString ((const char *) "implementation module %s", 24)), (const unsigned char *) &n, (sizeof (n)-1));
3023 : }
3024 794437 : else if (SymbolTable_IsModule (sym))
3025 : {
3026 : /* avoid dangling else. */
3027 53612 : if (SymbolTable_IsInnerModule (sym))
3028 : {
3029 84 : return FormatStrings_Sprintf1 (DynamicStrings_Mark (DynamicStrings_InitString ((const char *) "inner module %s", 15)), (const unsigned char *) &n, (sizeof (n)-1));
3030 : }
3031 : else
3032 : {
3033 53528 : return FormatStrings_Sprintf1 (DynamicStrings_Mark (DynamicStrings_InitString ((const char *) "program module %s", 17)), (const unsigned char *) &n, (sizeof (n)-1));
3034 : }
3035 : }
3036 740825 : else if (SymbolTable_IsProcedure (sym))
3037 : {
3038 : /* avoid dangling else. */
3039 740825 : if (SymbolTable_IsProcedureNested (sym))
3040 : {
3041 396 : return FormatStrings_Sprintf1 (DynamicStrings_Mark (DynamicStrings_InitString ((const char *) "nested procedure %s", 19)), (const unsigned char *) &n, (sizeof (n)-1));
3042 : }
3043 : else
3044 : {
3045 740429 : return FormatStrings_Sprintf1 (DynamicStrings_Mark (DynamicStrings_InitString ((const char *) "procedure %s", 12)), (const unsigned char *) &n, (sizeof (n)-1));
3046 : }
3047 : }
3048 : else
3049 : {
3050 : /* avoid dangling else. */
3051 0 : M2Error_InternalError ((const char *) "unexpected scope symbol", 23);
3052 : }
3053 : }
3054 : ReturnException ("/home/worker/buildworker/tiber-lcov/build/gcc/m2/gm2-compiler/M2GenGCC.def", 20, 1);
3055 : __builtin_unreachable ();
3056 : }
3057 :
3058 :
3059 : /*
3060 : CodeRange - encode the range test associated with op3.
3061 : */
3062 :
3063 797732 : static void CodeRange (unsigned int rangeId)
3064 : {
3065 797732 : M2Range_CodeRangeCheck (rangeId, GetCurrentScopeDescription ());
3066 797726 : }
3067 :
3068 :
3069 : /*
3070 : CodeError - encode the error test associated with op3.
3071 : */
3072 :
3073 965 : static void CodeError (unsigned int errorId)
3074 : {
3075 : /* We would like to test whether this position is in the same basicblock
3076 : as any known entry point. If so we could emit an error message.
3077 : */
3078 965 : m2type_AddStatement (M2LexBuf_TokenToLocation (CurrentQuadToken), M2Range_CodeErrorCheck (errorId, GetCurrentScopeDescription (), static_cast<DynamicStrings_String> (NULL)));
3079 965 : }
3080 :
3081 :
3082 : /*
3083 : CodeModuleScope - ModuleScopeOp is a quadruple which has the following
3084 : format:
3085 :
3086 : ModuleScopeOp _ _ moduleSym
3087 :
3088 : Its purpose is to reset the source file to another
3089 : file, hence all line numbers emitted with the
3090 : generated code will be relative to this source file.
3091 : */
3092 :
3093 81812 : static void CodeModuleScope (unsigned int moduleSym)
3094 : {
3095 81812 : PushScope (moduleSym);
3096 81812 : }
3097 :
3098 :
3099 : /*
3100 : CodeStartModFile - StartModFileOp is a quadruple which has the following
3101 : format:
3102 :
3103 : StartModFileOp _ _ moduleSym
3104 :
3105 : A new source file has been encountered therefore
3106 : set LastLine to 1.
3107 : Call pushGlobalScope.
3108 : */
3109 :
3110 81404 : static void CodeStartModFile (unsigned int moduleSym)
3111 : {
3112 81404 : m2block_pushGlobalScope ();
3113 81404 : LastLine = 1;
3114 81404 : PushScope (moduleSym);
3115 81404 : }
3116 :
3117 :
3118 : /*
3119 : CodeStartDefFile - StartDefFileOp is a quadruple with the following
3120 : format:
3121 :
3122 : StartDefFileOp _ _ moduleSym
3123 :
3124 : A new source file has been encountered therefore
3125 : set LastLine to 1.
3126 : Call pushGlobalScope.
3127 : */
3128 :
3129 156390 : static void CodeStartDefFile (unsigned int moduleSym)
3130 : {
3131 156390 : m2block_pushGlobalScope ();
3132 156390 : PushScope (moduleSym);
3133 156390 : LastLine = 1;
3134 156390 : }
3135 :
3136 :
3137 : /*
3138 : CodeEndFile - pops the GlobalScope.
3139 : */
3140 :
3141 237794 : static void CodeEndFile (void)
3142 : {
3143 237794 : m2block_popGlobalScope ();
3144 237794 : }
3145 :
3146 :
3147 : /*
3148 : CallInnerInit - produce a call to inner module initialization routine.
3149 : */
3150 :
3151 408 : static void CallInnerInit (unsigned int moduleSym)
3152 : {
3153 408 : location_t location;
3154 408 : unsigned int ctor;
3155 408 : unsigned int init;
3156 408 : unsigned int fini;
3157 408 : unsigned int dep;
3158 :
3159 408 : location = M2LexBuf_TokenToLocation (CurrentQuadToken);
3160 408 : SymbolTable_GetModuleCtors (moduleSym, &ctor, &init, &fini, &dep);
3161 408 : m2statement_BuildCallInner (location, SymbolConversion_Mod2Gcc (init));
3162 408 : }
3163 :
3164 :
3165 : /*
3166 : CallInnerFinally - produce a call to inner module finalization routine.
3167 : */
3168 :
3169 264 : static void CallInnerFinally (unsigned int moduleSym)
3170 : {
3171 264 : location_t location;
3172 264 : unsigned int ctor;
3173 264 : unsigned int init;
3174 264 : unsigned int fini;
3175 264 : unsigned int dep;
3176 :
3177 264 : location = M2LexBuf_TokenToLocation (CurrentQuadToken);
3178 264 : SymbolTable_GetModuleCtors (moduleSym, &ctor, &init, &fini, &dep);
3179 264 : m2statement_BuildCallInner (location, SymbolConversion_Mod2Gcc (fini));
3180 264 : }
3181 :
3182 :
3183 : /*
3184 : CodeInitStart - emits starting code before the main BEGIN END of the
3185 : current module.
3186 : */
3187 :
3188 81812 : static void CodeInitStart (unsigned int moduleSym, bool CompilingMainModule)
3189 : {
3190 81812 : location_t location;
3191 81812 : unsigned int ctor;
3192 81812 : unsigned int init;
3193 81812 : unsigned int fini;
3194 81812 : unsigned int dep;
3195 :
3196 81812 : if (CompilingMainModule || M2Options_WholeProgram)
3197 : {
3198 14606 : location = M2LexBuf_TokenToLocation (CurrentQuadToken);
3199 14606 : SymbolTable_GetModuleCtors (moduleSym, &ctor, &init, &fini, &dep);
3200 14606 : m2statement_BuildStartFunctionCode (location, SymbolConversion_Mod2Gcc (init), IsExportedGcc (init), false);
3201 14606 : SymbolTable_ForeachInnerModuleDo (moduleSym, (SymbolKey_PerformOperation) {(SymbolKey_PerformOperation_t) CallInnerInit});
3202 : }
3203 81812 : }
3204 :
3205 :
3206 : /*
3207 : CodeInitEnd - emits terminating code after the main BEGIN END of the
3208 : current module.
3209 : */
3210 :
3211 81812 : static void CodeInitEnd (unsigned int moduleSym, bool CompilingMainModule)
3212 : {
3213 81812 : location_t location;
3214 81812 : unsigned int ctor;
3215 81812 : unsigned int init;
3216 81812 : unsigned int fini;
3217 81812 : unsigned int dep;
3218 :
3219 81812 : if (CompilingMainModule || M2Options_WholeProgram)
3220 : {
3221 14606 : location = M2LexBuf_TokenToLocation (SymbolTable_GetDeclaredMod (moduleSym));
3222 14606 : SymbolTable_GetModuleCtors (moduleSym, &ctor, &init, &fini, &dep);
3223 14606 : m2block_finishFunctionDecl (location, SymbolConversion_Mod2Gcc (init));
3224 14606 : m2statement_BuildEndFunctionCode (location, SymbolConversion_Mod2Gcc (init), SymbolTable_IsModuleWithinProcedure (moduleSym));
3225 : }
3226 81812 : }
3227 :
3228 :
3229 : /*
3230 : CodeFinallyStart - emits starting code before the main BEGIN END of the
3231 : current module.
3232 : */
3233 :
3234 14606 : static void CodeFinallyStart (unsigned int moduleSym, bool CompilingMainModule)
3235 : {
3236 14606 : location_t location;
3237 14606 : unsigned int ctor;
3238 14606 : unsigned int init;
3239 14606 : unsigned int fini;
3240 14606 : unsigned int dep;
3241 :
3242 14606 : if (CompilingMainModule || M2Options_WholeProgram)
3243 : {
3244 14606 : location = M2LexBuf_TokenToLocation (CurrentQuadToken);
3245 14606 : SymbolTable_GetModuleCtors (moduleSym, &ctor, &init, &fini, &dep);
3246 14606 : m2statement_BuildStartFunctionCode (location, SymbolConversion_Mod2Gcc (fini), IsExportedGcc (fini), false);
3247 14606 : SymbolTable_ForeachInnerModuleDo (moduleSym, (SymbolKey_PerformOperation) {(SymbolKey_PerformOperation_t) CallInnerFinally});
3248 : }
3249 14606 : }
3250 :
3251 :
3252 : /*
3253 : CodeFinallyEnd - emits terminating code after the main BEGIN END of the
3254 : current module. It also creates the scaffold if the
3255 : cflag was not present.
3256 : */
3257 :
3258 14606 : static void CodeFinallyEnd (unsigned int moduleSym, bool CompilingMainModule)
3259 : {
3260 14606 : location_t location;
3261 14606 : unsigned int tokenpos;
3262 14606 : unsigned int ctor;
3263 14606 : unsigned int init;
3264 14606 : unsigned int fini;
3265 14606 : unsigned int dep;
3266 :
3267 14606 : if (CompilingMainModule || M2Options_WholeProgram)
3268 : {
3269 14606 : tokenpos = SymbolTable_GetDeclaredMod (moduleSym);
3270 14606 : location = M2LexBuf_TokenToLocation (tokenpos);
3271 14606 : SymbolTable_GetModuleCtors (moduleSym, &ctor, &init, &fini, &dep);
3272 14606 : m2block_finishFunctionDecl (location, SymbolConversion_Mod2Gcc (fini));
3273 14606 : m2statement_BuildEndFunctionCode (location, SymbolConversion_Mod2Gcc (fini), SymbolTable_IsModuleWithinProcedure (moduleSym));
3274 : }
3275 14606 : }
3276 :
3277 :
3278 : /*
3279 : GetAddressOfUnbounded - returns the address of the unbounded array contents.
3280 : */
3281 :
3282 5468 : static tree GetAddressOfUnbounded (location_t location, unsigned int param)
3283 : {
3284 5468 : unsigned int UnboundedType;
3285 :
3286 5468 : UnboundedType = SymbolTable_GetType (param);
3287 5468 : M2Debug_Assert (SymbolTable_IsUnbounded (UnboundedType));
3288 5468 : return m2convert_BuildConvert (M2LexBuf_TokenToLocation (SymbolTable_GetDeclaredMod (param)), m2type_GetPointerType (), m2expr_BuildComponentRef (location, SymbolConversion_Mod2Gcc (param), SymbolConversion_Mod2Gcc (SymbolTable_GetUnboundedAddressOffset (UnboundedType))), false);
3289 : /* static analysis guarentees a RETURN statement will be used before here. */
3290 : __builtin_unreachable ();
3291 : }
3292 :
3293 :
3294 : /*
3295 : GetSizeOfHighFromUnbounded - returns a Tree containing the value of
3296 : param.HIGH * sizeof(unboundedType).
3297 : The number of legal bytes this array
3298 : occupies.
3299 : */
3300 :
3301 5468 : static tree GetSizeOfHighFromUnbounded (unsigned int tokenno, unsigned int param)
3302 : {
3303 5468 : tree t;
3304 5468 : unsigned int UnboundedType;
3305 5468 : unsigned int ArrayType;
3306 5468 : unsigned int i;
3307 5468 : unsigned int n;
3308 5468 : location_t location;
3309 :
3310 5468 : location = M2LexBuf_TokenToLocation (tokenno);
3311 5468 : UnboundedType = SymbolTable_GetType (param);
3312 5468 : M2Debug_Assert (SymbolTable_IsUnbounded (UnboundedType));
3313 5468 : ArrayType = SymbolTable_GetType (UnboundedType);
3314 5468 : i = 1;
3315 5468 : n = SymbolTable_GetDimension (UnboundedType);
3316 5468 : t = m2expr_GetCardinalOne (location);
3317 16494 : while (i <= n)
3318 : {
3319 5558 : t = m2expr_BuildMult (location, m2expr_BuildAdd (location, M2GenGCC_GetHighFromUnbounded (location, i, param), m2expr_GetCardinalOne (location), false), t, false);
3320 : /* Remember we must add one as a[HIGH(a)] is the last accessible element of the array. */
3321 5558 : i += 1;
3322 : }
3323 5468 : return m2convert_BuildConvert (location, m2type_GetCardinalType (), m2expr_BuildMult (location, t, m2convert_BuildConvert (location, m2type_GetCardinalType (), FindSize (tokenno, ArrayType), false), false), false);
3324 : /* static analysis guarentees a RETURN statement will be used before here. */
3325 : __builtin_unreachable ();
3326 : }
3327 :
3328 :
3329 : /*
3330 : MaybeDebugBuiltinAlloca - if DebugBuiltins is set
3331 : then call Builtins.alloca_trace
3332 : else call Builtins.alloca.
3333 : */
3334 :
3335 5468 : static tree MaybeDebugBuiltinAlloca (location_t location, unsigned int tok, tree high)
3336 : {
3337 5468 : tree call;
3338 5468 : tree memptr;
3339 5468 : tree func;
3340 :
3341 5468 : if (M2Options_DebugBuiltins)
3342 : {
3343 0 : func = SymbolConversion_Mod2Gcc (SymbolTable_FromModuleGetSym (tok, NameKey_MakeKey ((const char *) "alloca_trace", 12), M2Batch_MakeDefinitionSource (tok, NameKey_MakeKey ((const char *) "Builtins", 8))));
3344 0 : call = m2builtins_BuiltInAlloca (location, high);
3345 0 : m2statement_SetLastFunction (call);
3346 0 : memptr = m2statement_BuildFunctValue (location, call);
3347 0 : call = m2statement_BuildCall2 (location, func, m2type_GetPointerType (), memptr, high);
3348 : }
3349 : else
3350 : {
3351 5468 : call = m2builtins_BuiltInAlloca (location, high);
3352 : }
3353 5468 : m2statement_SetLastFunction (call);
3354 5468 : return m2statement_BuildFunctValue (location, call);
3355 : /* static analysis guarentees a RETURN statement will be used before here. */
3356 : __builtin_unreachable ();
3357 : }
3358 :
3359 :
3360 : /*
3361 : MaybeDebugBuiltinMemcpy - if DebugBuiltins is set
3362 : then call memcpy
3363 : else call Builtins.memcpy.
3364 : */
3365 :
3366 7810 : static tree MaybeDebugBuiltinMemcpy (location_t location, tree src, tree dest, tree nbytes)
3367 : {
3368 7810 : tree call;
3369 7810 : tree func;
3370 :
3371 7810 : if (M2Options_DebugBuiltins)
3372 : {
3373 0 : func = SymbolConversion_Mod2Gcc (Memcpy);
3374 0 : call = m2statement_BuildCall3 (location, func, m2type_GetPointerType (), src, dest, nbytes);
3375 : }
3376 : else
3377 : {
3378 7810 : call = m2builtins_BuiltinMemCopy (location, src, dest, nbytes);
3379 : }
3380 7810 : m2statement_SetLastFunction (call);
3381 7810 : return m2statement_BuildFunctValue (location, call);
3382 : /* static analysis guarentees a RETURN statement will be used before here. */
3383 : __builtin_unreachable ();
3384 : }
3385 :
3386 :
3387 : /*
3388 : MakeCopyUse - make a copy of the unbounded array and alter all references
3389 : from the old unbounded array to the new unbounded array.
3390 : The parameter, param, contains a RECORD
3391 : ArrayAddress: ADDRESS ;
3392 : ArrayHigh : CARDINAL ;
3393 : END
3394 : we simply declare a new array of size, ArrayHigh
3395 : and set ArrayAddress to the address of the copy.
3396 :
3397 : Remember ArrayHigh == sizeof(Array)-sizeof(typeof(array))
3398 : so we add 1 for the size and add 1 for a possible <nul>
3399 : */
3400 :
3401 5468 : static void MakeCopyUse (unsigned int tokenno, unsigned int param)
3402 : {
3403 5468 : location_t location;
3404 5468 : unsigned int UnboundedType;
3405 5468 : tree Addr;
3406 5468 : tree High;
3407 5468 : tree NewArray;
3408 :
3409 5468 : location = M2LexBuf_TokenToLocation (tokenno);
3410 5468 : UnboundedType = SymbolTable_GetType (param);
3411 5468 : M2Debug_Assert (SymbolTable_IsUnbounded (UnboundedType));
3412 5468 : High = GetSizeOfHighFromUnbounded (tokenno, param);
3413 5468 : Addr = GetAddressOfUnbounded (location, param);
3414 5468 : NewArray = MaybeDebugBuiltinAlloca (location, tokenno, High);
3415 5468 : NewArray = MaybeDebugBuiltinMemcpy (location, NewArray, Addr, High);
3416 : /* Now assign param.Addr := ADR(NewArray). */
3417 5468 : m2statement_BuildAssignmentStatement (location, m2expr_BuildComponentRef (location, SymbolConversion_Mod2Gcc (param), SymbolConversion_Mod2Gcc (SymbolTable_GetUnboundedAddressOffset (UnboundedType))), NewArray);
3418 5468 : }
3419 :
3420 :
3421 : /*
3422 : GetParamAddress - returns the address of parameter, param.
3423 : */
3424 :
3425 0 : static tree GetParamAddress (location_t location, unsigned int proc, unsigned int param)
3426 : {
3427 0 : unsigned int sym;
3428 0 : unsigned int type;
3429 :
3430 0 : if (SymbolTable_IsParameter (param))
3431 : {
3432 0 : type = SymbolTable_GetType (param);
3433 0 : sym = SymbolTable_GetLocalSym (proc, SymbolTable_GetSymName (param));
3434 0 : if (SymbolTable_IsUnbounded (type))
3435 : {
3436 0 : return GetAddressOfUnbounded (location, sym);
3437 : }
3438 : else
3439 : {
3440 0 : M2Debug_Assert ((SymbolTable_GetMode (sym)) == SymbolTable_LeftValue);
3441 0 : return SymbolConversion_Mod2Gcc (sym);
3442 : }
3443 : }
3444 : else
3445 : {
3446 0 : M2Debug_Assert (SymbolTable_IsVar (param));
3447 0 : M2Debug_Assert ((SymbolTable_GetMode (param)) == SymbolTable_LeftValue);
3448 0 : return SymbolConversion_Mod2Gcc (param);
3449 : }
3450 : /* static analysis guarentees a RETURN statement will be used before here. */
3451 : __builtin_unreachable ();
3452 : }
3453 :
3454 :
3455 : /*
3456 : IsUnboundedWrittenTo - returns TRUE if the unbounded parameter
3457 : might be written to, or if -funbounded-by-reference
3458 : was _not_ specified.
3459 : */
3460 :
3461 5468 : static bool IsUnboundedWrittenTo (unsigned int proc, unsigned int param)
3462 : {
3463 5468 : DynamicStrings_String f;
3464 5468 : unsigned int l;
3465 5468 : unsigned int sym;
3466 5468 : NameKey_Name n1;
3467 5468 : NameKey_Name n2;
3468 :
3469 5468 : sym = SymbolTable_GetLocalSym (proc, SymbolTable_GetSymName (param));
3470 5468 : if (sym == SymbolTable_NulSym)
3471 : {
3472 0 : M2Error_InternalError ((const char *) "should find symbol in table", 27);
3473 : }
3474 : else
3475 : {
3476 5468 : if (M2Options_UnboundedByReference)
3477 : {
3478 0 : if ((! (SymbolTable_GetVarWritten (sym))) && M2Options_VerboseUnbounded)
3479 : {
3480 0 : n1 = SymbolTable_GetSymName (sym);
3481 0 : n2 = SymbolTable_GetSymName (proc);
3482 0 : f = M2LexBuf_FindFileNameFromToken (SymbolTable_GetDeclaredMod (sym), 0);
3483 0 : l = M2LexBuf_TokenToLineNo (SymbolTable_GetDeclaredMod (sym), 0);
3484 0 : M2Printf_printf4 ((const char *) "%s:%d:non VAR unbounded parameter %a in procedure %a does not need to be copied\\n", 81, (const unsigned char *) &f, (sizeof (f)-1), (const unsigned char *) &l, (sizeof (l)-1), (const unsigned char *) &n1, (sizeof (n1)-1), (const unsigned char *) &n2, (sizeof (n2)-1));
3485 : }
3486 0 : return SymbolTable_GetVarWritten (sym);
3487 : }
3488 : else
3489 : {
3490 : return true;
3491 : }
3492 : }
3493 : ReturnException ("/home/worker/buildworker/tiber-lcov/build/gcc/m2/gm2-compiler/M2GenGCC.def", 20, 1);
3494 : __builtin_unreachable ();
3495 : }
3496 :
3497 :
3498 : /*
3499 : GetParamSize - returns the size in bytes of, param.
3500 : */
3501 :
3502 0 : static tree GetParamSize (unsigned int tokenno, unsigned int param)
3503 : {
3504 0 : M2Debug_Assert ((SymbolTable_IsVar (param)) || (SymbolTable_IsParameter (param)));
3505 0 : if (SymbolTable_IsUnbounded (param))
3506 : {
3507 0 : return GetSizeOfHighFromUnbounded (tokenno, param);
3508 : }
3509 : else
3510 : {
3511 0 : return m2expr_BuildSize (M2LexBuf_TokenToLocation (tokenno), SymbolConversion_Mod2Gcc (SymbolTable_GetType (param)), false);
3512 : }
3513 : /* static analysis guarentees a RETURN statement will be used before here. */
3514 : __builtin_unreachable ();
3515 : }
3516 :
3517 :
3518 : /*
3519 : DoIsIntersection - jumps to, tLabel, if the ranges i1..i2 j1..j2 overlap
3520 : else jump to, fLabel.
3521 : */
3522 :
3523 0 : static void DoIsIntersection (unsigned int tokenno, tree ta, tree tb, tree tc, tree td, DynamicStrings_String tLabel, DynamicStrings_String fLabel)
3524 : {
3525 0 : location_t location;
3526 :
3527 0 : location = M2LexBuf_TokenToLocation (tokenno);
3528 : /*
3529 : if (ta>td) OR (tb<tc)
3530 : then
3531 : goto fLabel
3532 : else
3533 : goto tLabel
3534 : fi
3535 : */
3536 0 : m2statement_IfExprJump (location, m2expr_BuildGreaterThan (location, ta, td), reinterpret_cast <char * > (DynamicStrings_string (fLabel)));
3537 0 : m2statement_IfExprJump (location, m2expr_BuildLessThan (location, tb, tc), reinterpret_cast <char * > (DynamicStrings_string (fLabel)));
3538 0 : m2statement_BuildGoto (location, reinterpret_cast <char * > (DynamicStrings_string (tLabel)));
3539 0 : if (CascadedDebugging)
3540 : {
3541 : M2Printf_printf1 ((const char *) "label used %s\\n", 15, (const unsigned char *) &tLabel, (sizeof (tLabel)-1));
3542 : M2Printf_printf1 ((const char *) "label used %s\\n", 15, (const unsigned char *) &fLabel, (sizeof (fLabel)-1));
3543 : }
3544 0 : }
3545 :
3546 :
3547 : /*
3548 : BuildCascadedIfThenElsif - mustCheck contains a list of variables which
3549 : must be checked against the address of (proc, param, i).
3550 : If the address matches we make a copy of the unbounded
3551 : parameter (proc, param) and quit further checking.
3552 : */
3553 :
3554 0 : static void BuildCascadedIfThenElsif (unsigned int tokenno, Lists_List mustCheck, unsigned int proc, unsigned int param)
3555 : {
3556 0 : tree ta;
3557 0 : tree tb;
3558 0 : tree tc;
3559 0 : tree td;
3560 0 : unsigned int n;
3561 0 : unsigned int j;
3562 0 : DynamicStrings_String tLabel;
3563 0 : DynamicStrings_String fLabel;
3564 0 : DynamicStrings_String nLabel;
3565 0 : location_t location;
3566 :
3567 0 : location = M2LexBuf_TokenToLocation (tokenno);
3568 0 : n = Lists_NoOfItemsInList (mustCheck);
3569 : /* We want a sequence of if then elsif statements. */
3570 0 : if (n > 0)
3571 : {
3572 0 : UnboundedLabelNo += 1;
3573 0 : j = 1;
3574 0 : ta = GetAddressOfUnbounded (location, param);
3575 0 : tb = m2convert_BuildConvert (M2LexBuf_TokenToLocation (tokenno), m2type_GetPointerType (), m2expr_BuildAddAddress (location, ta, GetSizeOfHighFromUnbounded (tokenno, param)), false);
3576 0 : while (j <= n)
3577 : {
3578 0 : if (j > 1)
3579 : {
3580 0 : nLabel = CreateLabelProcedureN (proc, (const char *) "n", 1, UnboundedLabelNo, j);
3581 0 : if (CascadedDebugging)
3582 : {
3583 : M2Printf_printf1 ((const char *) "label declared %s\\n", 19, (const unsigned char *) &nLabel, (sizeof (nLabel)-1));
3584 : }
3585 0 : m2statement_DeclareLabel (location, reinterpret_cast <char * > (DynamicStrings_string (nLabel)));
3586 : }
3587 0 : tc = GetParamAddress (location, proc, Lists_GetItemFromList (mustCheck, j));
3588 0 : td = m2convert_BuildConvert (M2LexBuf_TokenToLocation (tokenno), m2type_GetPointerType (), m2expr_BuildAddAddress (location, tc, GetParamSize (tokenno, param)), false);
3589 0 : tLabel = CreateLabelProcedureN (proc, (const char *) "t", 1, UnboundedLabelNo, j+1);
3590 0 : fLabel = CreateLabelProcedureN (proc, (const char *) "f", 1, UnboundedLabelNo, j+1);
3591 0 : DoIsIntersection (tokenno, ta, tb, tc, td, tLabel, fLabel);
3592 0 : if (CascadedDebugging)
3593 : {
3594 : M2Printf_printf1 ((const char *) "label declared %s\\n", 19, (const unsigned char *) &tLabel, (sizeof (tLabel)-1));
3595 : }
3596 0 : m2statement_DeclareLabel (location, reinterpret_cast <char * > (DynamicStrings_string (tLabel)));
3597 0 : MakeCopyUse (tokenno, param);
3598 0 : if (j < n)
3599 : {
3600 0 : nLabel = CreateLabelProcedureN (proc, (const char *) "n", 1, UnboundedLabelNo, n+1);
3601 0 : m2statement_BuildGoto (location, reinterpret_cast <char * > (DynamicStrings_string (nLabel)));
3602 0 : if (CascadedDebugging)
3603 : {
3604 : M2Printf_printf1 ((const char *) "goto %s\\n", 9, (const unsigned char *) &nLabel, (sizeof (nLabel)-1));
3605 : }
3606 : }
3607 0 : if (CascadedDebugging)
3608 : {
3609 : M2Printf_printf1 ((const char *) "label declared %s\\n", 19, (const unsigned char *) &fLabel, (sizeof (fLabel)-1));
3610 : }
3611 0 : m2statement_DeclareLabel (location, reinterpret_cast <char * > (DynamicStrings_string (fLabel)));
3612 0 : j += 1;
3613 : }
3614 : }
3615 0 : }
3616 :
3617 :
3618 : /*
3619 : CheckUnboundedNonVarParameter - if non var unbounded parameter is written to
3620 : then
3621 : make a copy of the contents of this parameter
3622 : and use the copy
3623 : else if param
3624 : is type compatible with any parameter, symv
3625 : and at runtime its address matches symv
3626 : then
3627 : make a copy of the contents of this parameter
3628 : and use the copy
3629 : fi
3630 : */
3631 :
3632 5468 : static void CheckUnboundedNonVarParameter (unsigned int tokenno, Lists_List trashed, unsigned int proc, unsigned int param)
3633 : {
3634 5468 : Lists_List mustCheck;
3635 5468 : unsigned int paramTrashed;
3636 5468 : unsigned int n;
3637 5468 : unsigned int j;
3638 5468 : DynamicStrings_String f;
3639 5468 : unsigned int l;
3640 5468 : NameKey_Name n1;
3641 5468 : NameKey_Name n2;
3642 :
3643 5468 : if (IsUnboundedWrittenTo (proc, param))
3644 : {
3645 5468 : MakeCopyUse (tokenno, param);
3646 : }
3647 : else
3648 : {
3649 0 : Lists_InitList (&mustCheck);
3650 0 : n = Lists_NoOfItemsInList (trashed);
3651 0 : j = 1;
3652 0 : while (j <= n)
3653 : {
3654 0 : paramTrashed = static_cast<unsigned int> (Lists_GetItemFromList (trashed, j));
3655 0 : if (M2Base_IsAssignmentCompatible (SymbolTable_GetLowestType (param), SymbolTable_GetLowestType (paramTrashed)))
3656 : {
3657 : /* We must check whether this unbounded parameter has the same
3658 : address as the trashed parameter. */
3659 0 : if (M2Options_VerboseUnbounded)
3660 : {
3661 0 : n1 = SymbolTable_GetSymName (paramTrashed);
3662 0 : n2 = SymbolTable_GetSymName (proc);
3663 0 : f = M2LexBuf_FindFileNameFromToken (SymbolTable_GetDeclaredMod (paramTrashed), 0);
3664 0 : l = M2LexBuf_TokenToLineNo (SymbolTable_GetDeclaredMod (paramTrashed), 0);
3665 0 : M2Printf_printf4 ((const char *) "%s:%d:must check at runtime the address of parameter, %a, in procedure, %a, whose contents will be trashed\\n", 108, (const unsigned char *) &f, (sizeof (f)-1), (const unsigned char *) &l, (sizeof (l)-1), (const unsigned char *) &n1, (sizeof (n1)-1), (const unsigned char *) &n2, (sizeof (n2)-1));
3666 0 : n1 = SymbolTable_GetSymName (param);
3667 0 : n2 = SymbolTable_GetSymName (paramTrashed);
3668 0 : M2Printf_printf4 ((const char *) "%s:%d:against address of parameter, %a, possibly resulting in a copy of parameter, %a\\n", 87, (const unsigned char *) &f, (sizeof (f)-1), (const unsigned char *) &l, (sizeof (l)-1), (const unsigned char *) &n1, (sizeof (n1)-1), (const unsigned char *) &n2, (sizeof (n2)-1));
3669 : }
3670 0 : Lists_PutItemIntoList (mustCheck, paramTrashed);
3671 : }
3672 0 : j += 1;
3673 : }
3674 : /* Now we build a sequence of if then { elsif then } end to check addresses. */
3675 0 : BuildCascadedIfThenElsif (tokenno, mustCheck, proc, param);
3676 0 : Lists_KillList (&mustCheck);
3677 : }
3678 5468 : }
3679 :
3680 :
3681 : /*
3682 : IsParameterWritten - returns TRUE if a parameter, sym, is written to.
3683 : */
3684 :
3685 89275 : static bool IsParameterWritten (unsigned int proc, unsigned int sym)
3686 : {
3687 89275 : if (SymbolTable_IsParameter (sym))
3688 : {
3689 89275 : sym = SymbolTable_GetLocalSym (proc, SymbolTable_GetSymName (sym));
3690 : }
3691 89275 : if (SymbolTable_IsVar (sym))
3692 : {
3693 : /* Unbounded arrays will appear as vars. */
3694 89275 : return SymbolTable_GetVarWritten (sym);
3695 : }
3696 0 : M2Error_InternalError ((const char *) "expecting IsVar to return TRUE", 30);
3697 : ReturnException ("/home/worker/buildworker/tiber-lcov/build/gcc/m2/gm2-compiler/M2GenGCC.def", 20, 1);
3698 : __builtin_unreachable ();
3699 : }
3700 :
3701 :
3702 : /*
3703 : SaveNonVarUnboundedParameters - for each var parameter, symv, do
3704 : not just unbounded var parameters, but _all_
3705 : parameters
3706 : if symv is written to
3707 : then
3708 : add symv to a compile list
3709 : fi
3710 : done
3711 :
3712 : for each parameter of procedure, symu, do
3713 : if non var unbounded parameter is written to
3714 : then
3715 : make a copy of the contents of this parameter
3716 : and use the copy
3717 : else if
3718 : symu is type compatible with any parameter, symv
3719 : and at runtime its address matches symv
3720 : then
3721 : make a copy of the contents of this parameter
3722 : and use the copy
3723 : fi
3724 : done
3725 : */
3726 :
3727 76755 : static void SaveNonVarUnboundedParameters (unsigned int tokenno, unsigned int proc)
3728 : {
3729 76755 : unsigned int i;
3730 76755 : unsigned int p;
3731 76755 : Lists_List trashed;
3732 76755 : DynamicStrings_String f;
3733 76755 : unsigned int sym;
3734 76755 : unsigned int l;
3735 76755 : NameKey_Name n1;
3736 76755 : NameKey_Name n2;
3737 :
3738 76755 : Lists_InitList (&trashed);
3739 76755 : i = 1;
3740 76755 : p = SymbolTable_NoOfParamAny (proc);
3741 242785 : while (i <= p)
3742 : {
3743 89275 : sym = SymbolTable_GetNthParamAny (proc, i);
3744 89275 : if (IsParameterWritten (proc, sym))
3745 : {
3746 6540 : if (M2Options_VerboseUnbounded)
3747 : {
3748 0 : n1 = SymbolTable_GetSymName (sym);
3749 0 : n2 = SymbolTable_GetSymName (proc);
3750 0 : f = M2LexBuf_FindFileNameFromToken (SymbolTable_GetDeclaredMod (sym), 0);
3751 0 : l = M2LexBuf_TokenToLineNo (SymbolTable_GetDeclaredMod (sym), 0);
3752 0 : M2Printf_printf4 ((const char *) "%s:%d:parameter, %a, in procedure, %a, is trashed\\n", 51, (const unsigned char *) &f, (sizeof (f)-1), (const unsigned char *) &l, (sizeof (l)-1), (const unsigned char *) &n1, (sizeof (n1)-1), (const unsigned char *) &n2, (sizeof (n2)-1));
3753 : }
3754 6540 : Lists_PutItemIntoList (trashed, sym);
3755 : }
3756 89275 : i += 1;
3757 : }
3758 : /* Now see whether we need to copy any unbounded array parameters. */
3759 76755 : i = 1;
3760 76755 : p = SymbolTable_NoOfParamAny (proc);
3761 242785 : while (i <= p)
3762 : {
3763 89275 : if ((SymbolTable_IsUnboundedParamAny (proc, i)) && (! (SymbolTable_IsVarParamAny (proc, i))))
3764 : {
3765 5468 : CheckUnboundedNonVarParameter (tokenno, trashed, proc, SymbolTable_GetNth (proc, i));
3766 : }
3767 89275 : i += 1;
3768 : }
3769 76755 : Lists_KillList (&trashed);
3770 76755 : }
3771 :
3772 :
3773 : /*
3774 : AutoInitVariable -
3775 : */
3776 :
3777 60 : static void AutoInitVariable (location_t location, unsigned int sym)
3778 : {
3779 60 : unsigned int type;
3780 :
3781 60 : if (((! (SymbolTable_IsParameter (sym))) && (SymbolTable_IsVar (sym))) && (! (SymbolTable_IsTemporary (sym))))
3782 : {
3783 : /* PrintSym (sym) ; */
3784 6 : type = SymbolTable_SkipType (SymbolTable_GetType (sym));
3785 : /* The type SYSTEM.ADDRESS is a pointer type. */
3786 6 : if (SymbolTable_IsPointer (type))
3787 : {
3788 6 : m2statement_BuildAssignmentStatement (location, SymbolConversion_Mod2Gcc (sym), m2convert_BuildConvert (location, SymbolConversion_Mod2Gcc (SymbolTable_GetType (sym)), m2expr_GetPointerZero (location), true));
3789 : }
3790 : }
3791 60 : }
3792 :
3793 :
3794 : /*
3795 : AutoInitialize - scope will be a procedure, module or defimp. All pointer
3796 : variables are assigned to NIL.
3797 : */
3798 :
3799 76755 : static void AutoInitialize (location_t location, unsigned int scope)
3800 : {
3801 76755 : unsigned int i;
3802 76755 : unsigned int n;
3803 :
3804 76755 : if (M2Options_AutoInit)
3805 : {
3806 30 : n = SymbolTable_NoOfVariables (scope);
3807 30 : i = 1;
3808 30 : if (SymbolTable_IsProcedure (scope))
3809 : {
3810 : /* The parameters are stored as local variables. */
3811 30 : i += SymbolTable_NoOfParamAny (scope);
3812 : }
3813 90 : while (i <= n)
3814 : {
3815 60 : AutoInitVariable (location, SymbolTable_GetNth (scope, i));
3816 60 : i += 1;
3817 : }
3818 : }
3819 76755 : }
3820 :
3821 :
3822 : /*
3823 : CodeNewLocalVar - Builds a new frame on the stack to contain the procedure
3824 : local variables.
3825 : */
3826 :
3827 76755 : static void CodeNewLocalVar (unsigned int tokenno, unsigned int CurrentProcedure)
3828 : {
3829 76755 : unsigned int begin;
3830 76755 : unsigned int end;
3831 :
3832 : /* Callee saves non var unbounded parameter contents. */
3833 76755 : SaveNonVarUnboundedParameters (tokenno, CurrentProcedure);
3834 76755 : m2statement_BuildPushFunctionContext ();
3835 76755 : SymbolTable_GetProcedureBeginEnd (CurrentProcedure, &begin, &end);
3836 76755 : CurrentQuadToken = begin;
3837 76755 : m2statement_SetBeginLocation (M2LexBuf_TokenToLocation (begin));
3838 76755 : AutoInitialize (M2LexBuf_TokenToLocation (begin), CurrentProcedure);
3839 76755 : SymbolTable_ForeachProcedureDo (CurrentProcedure, (SymbolKey_PerformOperation) {(SymbolKey_PerformOperation_t) M2Code_CodeBlock});
3840 76755 : SymbolTable_ForeachInnerModuleDo (CurrentProcedure, (SymbolKey_PerformOperation) {(SymbolKey_PerformOperation_t) M2Code_CodeBlock});
3841 76755 : m2statement_BuildPopFunctionContext ();
3842 76755 : SymbolTable_ForeachInnerModuleDo (CurrentProcedure, (SymbolKey_PerformOperation) {(SymbolKey_PerformOperation_t) CallInnerInit});
3843 76755 : }
3844 :
3845 :
3846 : /*
3847 : CodeKillLocalVar - removes local variables and returns to previous scope.
3848 : */
3849 :
3850 76749 : static void CodeKillLocalVar (unsigned int CurrentProcedure)
3851 : {
3852 76749 : unsigned int begin;
3853 76749 : unsigned int end;
3854 76749 : tree proc;
3855 :
3856 76749 : SymbolTable_GetProcedureBeginEnd (CurrentProcedure, &begin, &end);
3857 76749 : CurrentQuadToken = end;
3858 76749 : proc = NULL;
3859 76749 : if (SymbolTable_IsCtor (CurrentProcedure))
3860 : {
3861 14136 : proc = m2decl_DeclareModuleCtor (SymbolConversion_Mod2Gcc (CurrentProcedure));
3862 : }
3863 76749 : m2statement_BuildEndFunctionCode (M2LexBuf_TokenToLocation (end), SymbolConversion_Mod2Gcc (CurrentProcedure), M2GCCDeclare_IsProcedureGccNested (CurrentProcedure));
3864 76749 : if ((SymbolTable_IsCtor (CurrentProcedure)) && (proc != NULL))
3865 : {
3866 14136 : m2decl_BuildModuleCtor (proc);
3867 : }
3868 76749 : M2GCCDeclare_PoisonSymbols (CurrentProcedure);
3869 76749 : m2block_removeStmtNote ();
3870 76749 : PopScope ();
3871 76749 : }
3872 :
3873 :
3874 : /*
3875 : CodeProcedureScope - start a procedure scope for CurrentProcedure.
3876 : */
3877 :
3878 76761 : static void CodeProcedureScope (unsigned int CurrentProcedure)
3879 : {
3880 76761 : unsigned int begin;
3881 76761 : unsigned int end;
3882 :
3883 76761 : m2block_removeStmtNote ();
3884 76761 : SymbolTable_GetProcedureBeginEnd (CurrentProcedure, &begin, &end);
3885 76761 : m2statement_BuildStartFunctionCode (M2LexBuf_TokenToLocation (begin), SymbolConversion_Mod2Gcc (CurrentProcedure), IsExportedGcc (CurrentProcedure), SymbolTable_IsProcedureInline (CurrentProcedure));
3886 76761 : M2GCCDeclare_StartDeclareScope (CurrentProcedure);
3887 76755 : PushScope (CurrentProcedure);
3888 76755 : }
3889 :
3890 :
3891 : /*
3892 : CodeReturnValue - places the operand into the return value space
3893 : allocated by the function call.
3894 : */
3895 :
3896 27443 : static void CodeReturnValue (unsigned int quad)
3897 : {
3898 27443 : M2Quads_QuadOperator op;
3899 27443 : bool constExpr;
3900 27443 : bool overflowChecking;
3901 27443 : unsigned int expr;
3902 27443 : unsigned int none;
3903 27443 : unsigned int procedure;
3904 27443 : unsigned int combinedpos;
3905 27443 : unsigned int returnpos;
3906 27443 : unsigned int exprpos;
3907 27443 : unsigned int nonepos;
3908 27443 : unsigned int procpos;
3909 27443 : tree value;
3910 27443 : tree length;
3911 27443 : location_t location;
3912 :
3913 27443 : M2Quads_GetQuadOtok (quad, &returnpos, &op, &expr, &none, &procedure, &overflowChecking, &constExpr, &exprpos, &nonepos, &procpos);
3914 27443 : combinedpos = M2LexBuf_MakeVirtualTok (returnpos, returnpos, exprpos);
3915 27443 : location = M2LexBuf_TokenToLocation (combinedpos);
3916 27443 : M2GCCDeclare_TryDeclareConstant (exprpos, expr); /* Checks to see whether it is a constant and declares it. */
3917 27443 : M2GCCDeclare_TryDeclareConstructor (exprpos, expr); /* Checks to see whether it is a constant and declares it. */
3918 27443 : if ((SymbolTable_IsConstString (expr)) && ((SymbolTable_SkipTypeAndSubrange (SymbolTable_GetType (procedure))) != M2Base_Char))
3919 : {
3920 24 : if (! (M2GenGCC_PrepareCopyString (returnpos, &length, &value, expr, SymbolTable_GetType (procedure))))
3921 : {
3922 0 : M2MetaError_MetaErrorT3 (M2LexBuf_MakeVirtualTok (returnpos, returnpos, exprpos), (const char *) "string constant {%1Ea} is too large to be returned from procedure {%2a} via the {%3d} {%3a}", 91, expr, procedure, SymbolTable_GetType (procedure));
3923 : }
3924 24 : value = m2type_BuildArrayStringConstructor (location, SymbolConversion_Mod2Gcc (SymbolTable_GetType (procedure)), value, length);
3925 : }
3926 : else
3927 : {
3928 27419 : value = SymbolConversion_Mod2Gcc (expr);
3929 : }
3930 27443 : m2statement_BuildReturnValueCode (location, SymbolConversion_Mod2Gcc (procedure), value);
3931 27443 : }
3932 :
3933 :
3934 : /*
3935 : CodeCall - determines whether the procedure call is a direct call
3936 : or an indirect procedure call.
3937 : */
3938 :
3939 205633 : static void CodeCall (unsigned int tokenno, unsigned int procedure)
3940 : {
3941 205633 : tree callTree;
3942 205633 : location_t location;
3943 :
3944 205633 : if (SymbolTable_IsProcedure (procedure))
3945 : {
3946 204909 : M2GCCDeclare_DeclareParameters (procedure);
3947 204909 : callTree = CodeDirectCall (tokenno, procedure);
3948 : }
3949 724 : else if (SymbolTable_IsProcType (SymbolTable_SkipType (SymbolTable_GetType (procedure))))
3950 : {
3951 : /* avoid dangling else. */
3952 724 : M2GCCDeclare_DeclareParameters (SymbolTable_SkipType (SymbolTable_GetType (procedure)));
3953 724 : callTree = CodeIndirectCall (tokenno, procedure);
3954 724 : procedure = SymbolTable_SkipType (SymbolTable_GetType (procedure));
3955 : }
3956 : else
3957 : {
3958 : /* avoid dangling else. */
3959 0 : M2Error_InternalError ((const char *) "expecting Procedure or ProcType", 31);
3960 : }
3961 205633 : if ((SymbolTable_GetType (procedure)) == SymbolTable_NulSym)
3962 : {
3963 139244 : location = M2LexBuf_TokenToLocation (tokenno);
3964 139244 : m2type_AddStatement (location, callTree);
3965 : }
3966 : /* Leave tree alone - as it will be picked up when processing FunctValue. */
3967 205633 : }
3968 :
3969 :
3970 : /*
3971 : UseBuiltin - returns a Tree containing the builtin function
3972 : and parameters. It should only be called if
3973 : CanUseBuiltin or IsProcedureBuiltinAvailable returns TRUE.
3974 : */
3975 :
3976 1152 : static tree UseBuiltin (unsigned int tokenno, unsigned int Sym)
3977 : {
3978 1152 : if (m2builtins_BuiltinExists (reinterpret_cast <char * > (NameKey_KeyToCharStar (SymbolTable_GetProcedureBuiltin (Sym)))))
3979 : {
3980 1152 : return m2builtins_BuildBuiltinTree (M2LexBuf_TokenToLocation (tokenno), reinterpret_cast <char * > (NameKey_KeyToCharStar (SymbolTable_GetProcedureBuiltin (Sym))));
3981 : }
3982 : else
3983 : {
3984 0 : return m2builtins_BuildBuiltinTree (M2LexBuf_TokenToLocation (tokenno), reinterpret_cast <char * > (NameKey_KeyToCharStar (SymbolTable_GetSymName (Sym))));
3985 : }
3986 : /* static analysis guarentees a RETURN statement will be used before here. */
3987 : __builtin_unreachable ();
3988 : }
3989 :
3990 :
3991 : /*
3992 : CodeDirectCall - calls a function/procedure.
3993 : */
3994 :
3995 204909 : static tree CodeDirectCall (unsigned int tokenno, unsigned int procedure)
3996 : {
3997 204909 : location_t location;
3998 204909 : tree call;
3999 :
4000 204909 : location = M2LexBuf_TokenToLocation (tokenno);
4001 204909 : if (SymbolTable_IsProcedureBuiltinAvailable (procedure))
4002 : {
4003 : /* avoid dangling else. */
4004 1146 : call = UseBuiltin (tokenno, procedure);
4005 1146 : if (call != NULL)
4006 : {
4007 1146 : call = m2statement_BuildBuiltinCallTree (call);
4008 : }
4009 : }
4010 : else
4011 : {
4012 : call = NULL;
4013 : }
4014 1146 : if (call == NULL)
4015 : {
4016 : /* avoid gcc warning by using compound statement even if not strictly necessary. */
4017 203763 : if ((SymbolTable_GetType (procedure)) == SymbolTable_NulSym)
4018 : {
4019 138584 : call = m2statement_BuildProcedureCallTree (location, SymbolConversion_Mod2Gcc (procedure), NULL);
4020 : }
4021 : else
4022 : {
4023 65179 : call = m2statement_BuildProcedureCallTree (location, SymbolConversion_Mod2Gcc (procedure), SymbolConversion_Mod2Gcc (SymbolTable_GetType (procedure)));
4024 : }
4025 : }
4026 204909 : if ((SymbolTable_GetType (procedure)) == SymbolTable_NulSym)
4027 : {
4028 138608 : m2statement_SetLastFunction (NULL);
4029 : }
4030 : else
4031 : {
4032 66301 : m2statement_SetLastFunction (call);
4033 : }
4034 204909 : return call;
4035 : /* static analysis guarentees a RETURN statement will be used before here. */
4036 : __builtin_unreachable ();
4037 : }
4038 :
4039 :
4040 : /*
4041 : CodeIndirectCall - calls a function/procedure indirectly.
4042 : */
4043 :
4044 724 : static tree CodeIndirectCall (unsigned int tokenno, unsigned int ProcVar)
4045 : {
4046 724 : tree ReturnType;
4047 724 : unsigned int proc;
4048 724 : location_t location;
4049 :
4050 724 : location = M2LexBuf_TokenToLocation (tokenno);
4051 724 : proc = SymbolTable_SkipType (SymbolTable_GetType (ProcVar));
4052 724 : if ((SymbolTable_GetType (proc)) == SymbolTable_NulSym)
4053 : {
4054 : ReturnType = (tree) (NULL);
4055 : }
4056 : else
4057 : {
4058 88 : ReturnType = (tree) (SymbolConversion_Mod2Gcc (SymbolTable_GetType (proc)));
4059 : }
4060 : /* Now we dereference the lvalue if necessary. */
4061 724 : if ((SymbolTable_GetMode (ProcVar)) == SymbolTable_LeftValue)
4062 : {
4063 68 : return m2statement_BuildIndirectProcedureCallTree (location, m2expr_BuildIndirect (location, SymbolConversion_Mod2Gcc (ProcVar), SymbolConversion_Mod2Gcc (proc)), ReturnType);
4064 : }
4065 : else
4066 : {
4067 656 : return m2statement_BuildIndirectProcedureCallTree (location, SymbolConversion_Mod2Gcc (ProcVar), ReturnType);
4068 : }
4069 : /* static analysis guarentees a RETURN statement will be used before here. */
4070 : __builtin_unreachable ();
4071 : }
4072 :
4073 :
4074 : /*
4075 : ConvertTo - convert gcc tree, t, (which currently represents Modula-2 op3) into
4076 : a symbol of, type.
4077 : */
4078 :
4079 31330 : static tree ConvertTo (tree t, unsigned int type, unsigned int op3)
4080 : {
4081 31330 : if ((SymbolTable_SkipType (type)) != (SymbolTable_SkipType (SymbolTable_GetType (op3))))
4082 : {
4083 21514 : if ((SymbolTable_IsConst (op3)) && (! (SymbolTable_IsConstString (op3))))
4084 : {
4085 1618 : SymbolTable_PushValue (op3);
4086 1618 : return m2convert_BuildConvert (M2LexBuf_TokenToLocation (SymbolTable_GetDeclaredMod (op3)), SymbolConversion_Mod2Gcc (type), t, false);
4087 : }
4088 : }
4089 : return t;
4090 : /* static analysis guarentees a RETURN statement will be used before here. */
4091 : __builtin_unreachable ();
4092 : }
4093 :
4094 :
4095 : /*
4096 : ConvertRHS - convert (t, rhs) into, type. (t, rhs) refer to the
4097 : same entity t is a GCC Tree and, rhs, is a Modula-2
4098 : symbol. It checks for char and strings
4099 : first and then the remaining types.
4100 : */
4101 :
4102 31330 : static tree ConvertRHS (tree t, unsigned int type, unsigned int rhs)
4103 : {
4104 31330 : t = M2GenGCC_StringToChar (SymbolConversion_Mod2Gcc (rhs), type, rhs);
4105 31330 : return ConvertTo (t, type, rhs);
4106 : /* static analysis guarentees a RETURN statement will be used before here. */
4107 : __builtin_unreachable ();
4108 : }
4109 :
4110 :
4111 : /*
4112 : IsCoerceableParameter - returns TRUE if symbol, sym, is a
4113 : coerceable parameter.
4114 : */
4115 :
4116 380278 : static bool IsCoerceableParameter (unsigned int sym)
4117 : {
4118 380278 : return ((((((SymbolTable_IsSet (sym)) || (((M2Base_IsOrdinalType (sym)) && (sym != M2Base_Boolean)) && (! (SymbolTable_IsEnumeration (sym))))) || (M2Base_IsComplexType (sym))) || (M2Base_IsRealType (sym))) || (M2System_IsComplexN (sym))) || (M2System_IsRealN (sym))) || (M2System_IsSetN (sym));
4119 : /* static analysis guarentees a RETURN statement will be used before here. */
4120 : __builtin_unreachable ();
4121 : }
4122 :
4123 :
4124 : /*
4125 : IsConstProcedure - returns TRUE if, p, is a const procedure.
4126 : */
4127 :
4128 592 : static bool IsConstProcedure (unsigned int p)
4129 : {
4130 592 : return ((SymbolTable_IsConst (p)) && ((SymbolTable_GetType (p)) != SymbolTable_NulSym)) && (SymbolTable_IsProcType (SymbolTable_GetType (p)));
4131 : /* static analysis guarentees a RETURN statement will be used before here. */
4132 : __builtin_unreachable ();
4133 : }
4134 :
4135 :
4136 : /*
4137 : IsConstant - returns TRUE if symbol, p, is either a const or procedure.
4138 : */
4139 :
4140 853916 : static bool IsConstant (unsigned int p)
4141 : {
4142 853916 : return (SymbolTable_IsConst (p)) || (SymbolTable_IsProcedure (p));
4143 : /* static analysis guarentees a RETURN statement will be used before here. */
4144 : __builtin_unreachable ();
4145 : }
4146 :
4147 :
4148 : /*
4149 : CheckConvertCoerceParameter - ensure that actual parameter is the same as the nth of callee.
4150 : */
4151 :
4152 513921 : static tree CheckConvertCoerceParameter (unsigned int tokenno, unsigned int nth, unsigned int callee, unsigned int actual)
4153 : {
4154 513921 : unsigned int OperandType;
4155 513921 : unsigned int ParamType;
4156 513921 : location_t location;
4157 :
4158 513921 : location = M2LexBuf_TokenToLocation (tokenno);
4159 513921 : if ((SymbolTable_GetNthParamAny (callee, nth)) == SymbolTable_NulSym)
4160 : {
4161 : /* We reach here if the argument is being passed to a C vararg function. */
4162 6510 : return SymbolConversion_Mod2Gcc (actual);
4163 : }
4164 : else
4165 : {
4166 507411 : OperandType = SymbolTable_SkipType (SymbolTable_GetType (actual));
4167 507411 : ParamType = SymbolTable_SkipType (SymbolTable_GetType (SymbolTable_GetNthParamAny (callee, nth)));
4168 : }
4169 507411 : if (SymbolTable_IsProcType (ParamType))
4170 : {
4171 44294 : if (((SymbolTable_IsProcedure (actual)) || (IsConstProcedure (actual))) || (OperandType == ParamType))
4172 : {
4173 44230 : return SymbolConversion_Mod2Gcc (actual);
4174 : }
4175 : else
4176 : {
4177 64 : return m2convert_BuildConvert (location, SymbolConversion_Mod2Gcc (ParamType), SymbolConversion_Mod2Gcc (actual), false);
4178 : }
4179 : }
4180 463117 : else if (((M2Base_IsRealType (OperandType)) && (M2Base_IsRealType (ParamType))) && (ParamType != OperandType))
4181 : {
4182 : /* avoid dangling else. */
4183 : /* SHORTREAL, LONGREAL and REAL conversion during parameter passing. */
4184 1962 : return m2convert_BuildConvert (location, SymbolConversion_Mod2Gcc (ParamType), SymbolConversion_Mod2Gcc (actual), false);
4185 : }
4186 461155 : else if (((OperandType != SymbolTable_NulSym) && (SymbolTable_IsSet (OperandType))) && (SymbolTable_IsConst (actual)))
4187 : {
4188 : /* avoid dangling else. */
4189 548 : return m2decl_DeclareKnownConstant (location, SymbolConversion_Mod2Gcc (ParamType), SymbolConversion_Mod2Gcc (actual));
4190 : }
4191 460607 : else if ((SymbolTable_IsConst (actual)) && ((M2Base_IsOrdinalType (ParamType)) || (M2System_IsSystemType (ParamType))))
4192 : {
4193 : /* avoid dangling else. */
4194 80305 : return m2convert_BuildConvert (location, SymbolConversion_Mod2Gcc (ParamType), M2GenGCC_StringToChar (SymbolConversion_Mod2Gcc (actual), ParamType, actual), false);
4195 : }
4196 380302 : else if ((SymbolTable_IsConstString (actual)) || (((OperandType != SymbolTable_NulSym) && (IsCoerceableParameter (OperandType))) && (OperandType != ParamType)))
4197 : {
4198 : /* avoid dangling else. */
4199 5278 : return m2convert_BuildConvert (location, SymbolConversion_Mod2Gcc (ParamType), SymbolConversion_Mod2Gcc (actual), false);
4200 : }
4201 : else
4202 : {
4203 : /* avoid dangling else. */
4204 375024 : return SymbolConversion_Mod2Gcc (actual);
4205 : }
4206 : /* static analysis guarentees a RETURN statement will be used before here. */
4207 : __builtin_unreachable ();
4208 : }
4209 :
4210 :
4211 : /*
4212 : CheckConstant - checks to see whether we should declare the constant.
4213 : */
4214 :
4215 6 : static tree CheckConstant (unsigned int tokenno, unsigned int des, unsigned int expr)
4216 : {
4217 6 : location_t location;
4218 :
4219 6 : location = M2LexBuf_TokenToLocation (tokenno);
4220 6 : if (SymbolTable_IsProcedure (expr))
4221 : {
4222 0 : return SymbolConversion_Mod2Gcc (expr);
4223 : }
4224 : else
4225 : {
4226 6 : return m2decl_DeclareKnownConstant (location, SymbolConversion_Mod2Gcc (SymbolTable_GetType (des)), SymbolConversion_Mod2Gcc (expr));
4227 : }
4228 : /* static analysis guarentees a RETURN statement will be used before here. */
4229 : __builtin_unreachable ();
4230 : }
4231 :
4232 :
4233 : /*
4234 : CodeMakeAdr - code the function MAKEADR.
4235 : */
4236 :
4237 0 : static void CodeMakeAdr (unsigned int q, unsigned int op1, unsigned int op2, unsigned int op3)
4238 : {
4239 0 : unsigned int r;
4240 0 : unsigned int n;
4241 0 : unsigned int type;
4242 0 : M2Quads_QuadOperator op;
4243 0 : tree bits;
4244 0 : tree max;
4245 0 : tree tmp;
4246 0 : tree res;
4247 0 : tree val;
4248 0 : location_t location;
4249 :
4250 0 : location = M2LexBuf_TokenToLocation (CurrentQuadToken);
4251 0 : n = q;
4252 0 : do {
4253 0 : if (op1 > 0)
4254 : {
4255 0 : M2GCCDeclare_DeclareConstant (CurrentQuadToken, op3);
4256 : }
4257 0 : n = M2Quads_GetNextQuad (n);
4258 0 : M2Quads_GetQuad (n, &op, &r, &op2, &op3);
4259 0 : } while (! (op == M2Quads_FunctValueOp));
4260 0 : n = q;
4261 0 : M2Quads_GetQuad (n, &op, &op1, &op2, &op3);
4262 0 : res = SymbolConversion_Mod2Gcc (r);
4263 0 : max = m2expr_GetSizeOfInBits (SymbolConversion_Mod2Gcc (M2System_Address));
4264 0 : bits = m2expr_GetIntegerZero (location);
4265 0 : val = m2expr_GetPointerZero (location);
4266 0 : do {
4267 0 : location = M2LexBuf_TokenToLocation (CurrentQuadToken);
4268 0 : if ((op == M2Quads_ParamOp) && (op1 > 0))
4269 : {
4270 : /* avoid gcc warning by using compound statement even if not strictly necessary. */
4271 0 : if ((SymbolTable_GetType (op3)) == SymbolTable_NulSym)
4272 : {
4273 0 : M2Error_WriteFormat0 ((const char *) "must supply typed constants to MAKEADR", 38);
4274 : }
4275 : else
4276 : {
4277 0 : type = SymbolTable_GetType (op3);
4278 0 : tmp = m2convert_BuildConvert (location, m2type_GetPointerType (), SymbolConversion_Mod2Gcc (op3), false);
4279 0 : if ((m2expr_CompareTrees (bits, m2expr_GetIntegerZero (location))) > 0)
4280 : {
4281 0 : tmp = m2expr_BuildLSL (location, tmp, bits, false);
4282 : }
4283 0 : bits = m2expr_BuildAdd (location, bits, m2expr_GetSizeOfInBits (SymbolConversion_Mod2Gcc (type)), false);
4284 0 : val = m2expr_BuildLogicalOrAddress (location, val, tmp);
4285 : }
4286 : }
4287 0 : M2Quads_SubQuad (n);
4288 0 : n = M2Quads_GetNextQuad (n);
4289 0 : M2Quads_GetQuad (n, &op, &op1, &op2, &op3);
4290 0 : } while (! (op == M2Quads_FunctValueOp));
4291 0 : if ((m2expr_CompareTrees (bits, max)) > 0)
4292 : {
4293 0 : M2MetaError_MetaErrorT0 (CurrentQuadToken, (const char *) "total number of bits specified as parameters to {%kMAKEADR} exceeds address width", 81);
4294 : }
4295 0 : M2Quads_SubQuad (n);
4296 0 : m2statement_BuildAssignmentStatement (location, res, val);
4297 0 : }
4298 :
4299 :
4300 : /*
4301 : CodeBuiltinFunction - attempts to inline a function. Currently it only
4302 : inlines the SYSTEM function MAKEADR.
4303 : */
4304 :
4305 66389 : static void CodeBuiltinFunction (unsigned int q, unsigned int nth, unsigned int func, unsigned int parameter)
4306 : {
4307 66389 : if (nth == 0)
4308 : {
4309 66389 : InitBuiltinSyms (M2LexBuf_BuiltinTokenNo);
4310 66389 : if (func == M2System_MakeAdr)
4311 : {
4312 0 : CodeMakeAdr (q, nth, func, parameter);
4313 : }
4314 : }
4315 66389 : }
4316 :
4317 :
4318 : /*
4319 : FoldMakeAdr - attempts to fold the function MAKEADR.
4320 : */
4321 :
4322 12 : static void FoldMakeAdr (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int q, unsigned int op1, unsigned int op2, unsigned int op3)
4323 : {
4324 12 : bool resolved;
4325 12 : unsigned int r;
4326 12 : unsigned int n;
4327 12 : M2Quads_QuadOperator op;
4328 12 : unsigned int type;
4329 12 : tree bits;
4330 12 : tree max;
4331 12 : tree tmp;
4332 12 : tree val;
4333 12 : location_t location;
4334 :
4335 12 : location = M2LexBuf_TokenToLocation (tokenno);
4336 12 : resolved = true;
4337 12 : n = q;
4338 12 : r = op1;
4339 24 : do {
4340 24 : if (r > 0)
4341 : {
4342 12 : M2GCCDeclare_TryDeclareConstant (tokenno, op3);
4343 12 : if (! (SymbolConversion_GccKnowsAbout (op3)))
4344 : {
4345 24 : resolved = false;
4346 : }
4347 : }
4348 24 : n = M2Quads_GetNextQuad (n);
4349 24 : M2Quads_GetQuad (n, &op, &r, &op2, &op3);
4350 24 : } while (! (op == M2Quads_FunctValueOp));
4351 12 : if (resolved && (SymbolTable_IsConst (r)))
4352 : {
4353 12 : n = q;
4354 12 : M2Quads_GetQuad (n, &op, &op1, &op2, &op3);
4355 12 : max = m2expr_GetSizeOfInBits (SymbolConversion_Mod2Gcc (M2System_Address));
4356 12 : bits = m2expr_GetIntegerZero (location);
4357 12 : val = m2expr_GetPointerZero (location);
4358 24 : do {
4359 24 : location = M2LexBuf_TokenToLocation (tokenno);
4360 24 : if ((op == M2Quads_ParamOp) && (op1 > 0))
4361 : {
4362 : /* avoid gcc warning by using compound statement even if not strictly necessary. */
4363 12 : if ((SymbolTable_GetType (op3)) == SymbolTable_NulSym)
4364 : {
4365 0 : M2MetaError_MetaErrorT0 (tokenno, (const char *) "constants passed to {%kMAKEADR} must be typed", 45);
4366 : }
4367 : else
4368 : {
4369 12 : type = SymbolTable_GetType (op3);
4370 12 : tmp = m2convert_BuildConvert (location, m2type_GetPointerType (), SymbolConversion_Mod2Gcc (op3), false);
4371 12 : if ((m2expr_CompareTrees (bits, m2expr_GetIntegerZero (location))) > 0)
4372 : {
4373 0 : tmp = m2expr_BuildLSL (location, tmp, bits, false);
4374 : }
4375 12 : bits = m2expr_BuildAdd (location, bits, m2expr_GetSizeOfInBits (SymbolConversion_Mod2Gcc (type)), false);
4376 12 : val = m2expr_BuildLogicalOrAddress (location, val, tmp);
4377 : }
4378 : }
4379 24 : M2Quads_SubQuad (n);
4380 24 : n = M2Quads_GetNextQuad (n);
4381 24 : M2Quads_GetQuad (n, &op, &op1, &op2, &op3);
4382 24 : } while (! (op == M2Quads_FunctValueOp));
4383 12 : if ((m2expr_CompareTrees (bits, max)) > 0)
4384 : {
4385 0 : M2MetaError_MetaErrorT0 (tokenno, (const char *) "total number of bits specified as parameters to {%kMAKEADR} exceeds address width", 81);
4386 : }
4387 12 : SymbolTable_PutConst (r, M2System_Address);
4388 12 : SymbolConversion_AddModGcc (r, m2decl_DeclareKnownConstant (location, SymbolConversion_Mod2Gcc (M2System_Address), val));
4389 12 : (*p.proc) (r);
4390 12 : NoChange = false;
4391 12 : M2Quads_SubQuad (n);
4392 : }
4393 12 : }
4394 :
4395 :
4396 : /*
4397 : doParam - builds the parameter, op3, which is to be passed to
4398 : procedure, op2. The number of the parameter is op1.
4399 : */
4400 :
4401 513921 : static void doParam (unsigned int paramtok, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3)
4402 : {
4403 513921 : location_t location;
4404 :
4405 513921 : location = M2LexBuf_TokenToLocation (paramtok);
4406 513921 : M2GCCDeclare_DeclareConstant (paramtok, op3);
4407 513921 : M2GCCDeclare_DeclareConstructor (paramtok, quad, op3);
4408 513921 : m2statement_BuildParam (location, CheckConvertCoerceParameter (paramtok, op1, op2, op3));
4409 513921 : }
4410 :
4411 :
4412 : /*
4413 : FoldBuiltin - attempts to fold the gcc builtin function.
4414 : */
4415 :
4416 18004 : static void FoldBuiltin (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int q)
4417 : {
4418 18004 : bool resolved;
4419 18004 : unsigned int procedure;
4420 18004 : unsigned int r;
4421 18004 : unsigned int n;
4422 18004 : unsigned int op1;
4423 18004 : unsigned int op2;
4424 18004 : unsigned int op3;
4425 18004 : M2Quads_QuadOperator op;
4426 18004 : tree val;
4427 18004 : tree call;
4428 18004 : location_t location;
4429 :
4430 18004 : M2Quads_GetQuad (q, &op, &op1, &op2, &op3);
4431 18004 : resolved = true;
4432 18004 : procedure = SymbolTable_NulSym;
4433 18004 : n = q;
4434 18004 : r = op1;
4435 57036 : do {
4436 57036 : if (r > 0)
4437 : {
4438 21028 : M2GCCDeclare_TryDeclareConstant (tokenno, op3);
4439 21028 : if (! (SymbolConversion_GccKnowsAbout (op3)))
4440 : {
4441 57036 : resolved = false;
4442 : }
4443 : }
4444 57036 : if ((op == M2Quads_CallOp) && (! (SymbolTable_IsProcedure (op3))))
4445 : {
4446 : /* Cannot fold an indirect procedure function call. */
4447 : resolved = false;
4448 : }
4449 57036 : n = M2Quads_GetNextQuad (n);
4450 57036 : M2Quads_GetQuad (n, &op, &r, &op2, &op3);
4451 57036 : } while (! (op == M2Quads_FunctValueOp));
4452 18004 : if (resolved && (SymbolTable_IsConst (r)))
4453 : {
4454 6 : n = q;
4455 6 : M2Quads_GetQuad (n, &op, &op1, &op2, &op3);
4456 18 : do {
4457 18 : if ((op == M2Quads_ParamOp) && (op1 > 0))
4458 : {
4459 6 : doParam (tokenno, n, op1, op2, op3);
4460 : }
4461 12 : else if (op == M2Quads_CallOp)
4462 : {
4463 : /* avoid dangling else. */
4464 6 : procedure = op3;
4465 : }
4466 18 : M2Quads_SubQuad (n);
4467 18 : n = M2Quads_GetNextQuad (n);
4468 18 : M2Quads_GetQuad (n, &op, &op1, &op2, &op3);
4469 18 : } while (! (op == M2Quads_FunctValueOp));
4470 6 : if (SymbolTable_IsProcedureBuiltinAvailable (procedure))
4471 : {
4472 6 : location = M2LexBuf_TokenToLocation (tokenno);
4473 6 : call = UseBuiltin (tokenno, procedure);
4474 6 : val = m2statement_BuildFunctValue (location, call);
4475 6 : val = m2expr_FoldAndStrip (val);
4476 6 : SymbolTable_PutConst (r, SymbolTable_GetType (procedure));
4477 6 : SymbolConversion_AddModGcc (r, m2decl_DeclareKnownConstant (location, SymbolConversion_Mod2Gcc (SymbolTable_GetType (procedure)), val));
4478 6 : (*p.proc) (r);
4479 6 : m2statement_SetLastFunction (NULL);
4480 : }
4481 : else
4482 : {
4483 0 : M2MetaError_MetaErrorT1 (tokenno, (const char *) "gcc builtin procedure {%1Ead} cannot be used in a constant expression", 69, procedure);
4484 : }
4485 6 : NoChange = false;
4486 6 : M2Quads_SubQuad (n);
4487 : }
4488 18004 : }
4489 :
4490 :
4491 : /*
4492 : FoldBuiltinFunction - attempts to inline a function. Currently it only
4493 : inlines the SYSTEM function MAKEADR.
4494 : */
4495 :
4496 7490673 : static void FoldBuiltinFunction (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int q, unsigned int op1, unsigned int op2, unsigned int op3)
4497 : {
4498 7490673 : if (op1 == 0)
4499 : {
4500 : /* avoid gcc warning by using compound statement even if not strictly necessary. */
4501 : /* Must be a function as op1 is the return parameter. */
4502 1010107 : if (op3 == M2System_MakeAdr)
4503 : {
4504 12 : FoldMakeAdr (tokenno, p, q, op1, op2, op3);
4505 : }
4506 1010095 : else if ((SymbolTable_IsProcedure (op3)) && (SymbolTable_IsProcedureBuiltinAvailable (op3)))
4507 : {
4508 : /* avoid dangling else. */
4509 18004 : FoldBuiltin (tokenno, p, q);
4510 : }
4511 : }
4512 7490673 : }
4513 :
4514 :
4515 : /*
4516 : CodeParam - builds a parameter list.
4517 : Note that we can ignore ModeOfAddr as any lvalue will
4518 : have been created in a preceeding quadruple.
4519 : */
4520 :
4521 580352 : static void CodeParam (unsigned int quad)
4522 : {
4523 580352 : unsigned int nopos;
4524 580352 : unsigned int procedure;
4525 580352 : unsigned int parameter;
4526 580352 : unsigned int parampos;
4527 580352 : unsigned int nth;
4528 580352 : bool compatible;
4529 580352 : bool constExpr;
4530 580352 : bool overflow;
4531 580352 : M2Quads_QuadOperator op;
4532 :
4533 580352 : M2Quads_GetQuadOtok (quad, ¶mpos, &op, &nth, &procedure, ¶meter, &overflow, &constExpr, &nopos, &nopos, &nopos);
4534 580352 : compatible = true;
4535 580352 : if (nth == 0)
4536 : {
4537 66389 : CodeBuiltinFunction (quad, nth, procedure, parameter);
4538 : }
4539 : else
4540 : {
4541 513963 : if (M2Options_StrictTypeChecking)
4542 : {
4543 513963 : if (nth <= (SymbolTable_NoOfParamAny (procedure)))
4544 : {
4545 507453 : compatible = M2Check_ParameterTypeCompatible (parampos, (const char *) "parameter incompatibility when attempting to pass actual parameter {%2ad} to a {%kVAR} formal parameter {%3Ead} during call to procedure {%1ad}", 143, procedure, SymbolTable_GetNthParamAny (procedure, nth), parameter, nth, SymbolTable_IsVarParamAny (procedure, nth));
4546 : }
4547 : }
4548 513963 : if (((nth <= (SymbolTable_NoOfParamAny (procedure))) && (SymbolTable_IsVarParamAny (procedure, nth))) && (SymbolTable_IsConst (parameter)))
4549 : {
4550 0 : M2MetaError_MetaErrorT1 (parampos, (const char *) "cannot pass a constant {%1Ead} as a VAR parameter", 49, parameter);
4551 : }
4552 513963 : else if (SymbolTable_IsAModula2Type (parameter))
4553 : {
4554 : /* avoid dangling else. */
4555 0 : M2MetaError_MetaErrorT2 (parampos, (const char *) "cannot pass a type {%1Ead} as a parameter to procedure {%2ad}", 61, parameter, procedure);
4556 : }
4557 513963 : else if (compatible)
4558 : {
4559 : /* avoid dangling else. */
4560 513915 : doParam (parampos, quad, nth, procedure, parameter);
4561 : }
4562 : }
4563 580352 : }
4564 :
4565 :
4566 : /*
4567 : Replace - replace the entry for sym in the double entry bookkeeping with sym/tree.
4568 : */
4569 :
4570 0 : static void Replace (unsigned int sym, tree gcc)
4571 : {
4572 0 : if (SymbolConversion_GccKnowsAbout (sym))
4573 : {
4574 0 : SymbolConversion_RemoveMod2Gcc (sym);
4575 : }
4576 0 : SymbolConversion_AddModGcc (sym, gcc);
4577 0 : }
4578 :
4579 :
4580 : /*
4581 : CodeFunctValue - retrieves the function return value and assigns it
4582 : into a variable.
4583 : */
4584 :
4585 66389 : static void CodeFunctValue (location_t location, unsigned int op1)
4586 : {
4587 66389 : tree call;
4588 66389 : tree value;
4589 :
4590 : /*
4591 : operator : FunctValueOp
4592 : op1 : The Returned Variable
4593 : op3 : The Function Returning this Variable
4594 : */
4595 66389 : if (M2SSA_EnableSSA && (SymbolTable_IsVariableSSA (op1)))
4596 : {
4597 : call = m2statement_GetLastFunction ();
4598 : m2statement_SetLastFunction (NULL);
4599 : Replace (op1, call);
4600 : }
4601 : else
4602 : {
4603 66389 : value = m2statement_BuildFunctValue (location, SymbolConversion_Mod2Gcc (op1));
4604 : /* AddStatement (location, CheckCleanup (location, op3, value, call)) */
4605 66389 : m2type_AddStatement (location, value);
4606 : }
4607 66389 : }
4608 :
4609 :
4610 : /*
4611 : FoldStringLength -
4612 : */
4613 :
4614 72 : static void FoldStringLength (unsigned int quad, M2GCCDeclare_WalkAction p)
4615 : {
4616 72 : M2Quads_QuadOperator op;
4617 72 : unsigned int des;
4618 72 : unsigned int none;
4619 72 : unsigned int expr;
4620 72 : unsigned int stroppos;
4621 72 : unsigned int despos;
4622 72 : unsigned int nonepos;
4623 72 : unsigned int exprpos;
4624 72 : bool constExpr;
4625 72 : bool overflowChecking;
4626 72 : location_t location;
4627 :
4628 72 : M2Quads_GetQuadOtok (quad, &stroppos, &op, &des, &none, &expr, &overflowChecking, &constExpr, &despos, &nonepos, &exprpos);
4629 72 : if ((IsConstStr (expr)) && (IsConstStrKnown (expr)))
4630 : {
4631 66 : location = M2LexBuf_TokenToLocation (stroppos);
4632 66 : M2ALU_PushCard (SymbolTable_GetStringLength (exprpos, expr));
4633 66 : SymbolConversion_AddModGcc (des, m2convert_BuildConvert (location, SymbolConversion_Mod2Gcc (SymbolTable_GetType (des)), M2ALU_PopIntegerTree (), false));
4634 132 : RemoveQuad (p, des, quad);
4635 : }
4636 72 : }
4637 :
4638 :
4639 : /*
4640 : FoldStringConvertM2nul - attempt to assign the des with the string contents from expr.
4641 : It also marks the des as a m2 string which must be nul terminated.
4642 : The front end uses double book keeping and it is easier to have
4643 : different m2 string symbols each of which map onto a slightly different
4644 : gcc string tree.
4645 : */
4646 :
4647 33949 : static void FoldStringConvertM2nul (unsigned int quad, M2GCCDeclare_WalkAction p)
4648 : {
4649 33949 : M2Quads_QuadOperator op;
4650 33949 : unsigned int des;
4651 33949 : unsigned int none;
4652 33949 : unsigned int expr;
4653 33949 : unsigned int stroppos;
4654 33949 : unsigned int despos;
4655 33949 : unsigned int nonepos;
4656 33949 : unsigned int exprpos;
4657 33949 : DynamicStrings_String s;
4658 33949 : bool constExpr;
4659 33949 : bool overflowChecking;
4660 :
4661 33949 : M2Quads_GetQuadOtok (quad, &stroppos, &op, &des, &none, &expr, &overflowChecking, &constExpr, &despos, &nonepos, &exprpos);
4662 33949 : if ((IsConstStr (expr)) && (IsConstStrKnown (expr)))
4663 : {
4664 33949 : s = GetStr (exprpos, expr);
4665 33949 : SymbolTable_PutConstStringKnown (stroppos, des, NameKey_makekey (DynamicStrings_string (s)), false, true);
4666 33949 : M2GCCDeclare_TryDeclareConstant (despos, des);
4667 33949 : (*p.proc) (des);
4668 33949 : NoChange = false;
4669 33949 : M2Quads_SubQuad (quad);
4670 33949 : s = DynamicStrings_KillString (s);
4671 : }
4672 33949 : }
4673 :
4674 :
4675 : /*
4676 : FoldStringConvertCnul -attempt to assign the des with the string contents from expr.
4677 : It also marks the des as a C string which must be nul terminated.
4678 : */
4679 :
4680 9583 : static void FoldStringConvertCnul (unsigned int quad, M2GCCDeclare_WalkAction p)
4681 : {
4682 9583 : M2Quads_QuadOperator op;
4683 9583 : unsigned int des;
4684 9583 : unsigned int none;
4685 9583 : unsigned int expr;
4686 9583 : unsigned int stroppos;
4687 9583 : unsigned int despos;
4688 9583 : unsigned int nonepos;
4689 9583 : unsigned int exprpos;
4690 9583 : DynamicStrings_String s;
4691 9583 : bool constExpr;
4692 9583 : bool overflowChecking;
4693 :
4694 9583 : M2Quads_GetQuadOtok (quad, &stroppos, &op, &des, &none, &expr, &overflowChecking, &constExpr, &despos, &nonepos, &exprpos);
4695 9583 : if ((IsConstStr (expr)) && (IsConstStrKnown (expr)))
4696 : {
4697 9559 : s = GetStr (exprpos, expr);
4698 9559 : SymbolTable_PutConstStringKnown (stroppos, des, NameKey_makekey (DynamicStrings_string (s)), true, true);
4699 9559 : M2GCCDeclare_TryDeclareConstant (despos, des);
4700 9559 : (*p.proc) (des);
4701 9559 : NoChange = false;
4702 9559 : M2Quads_SubQuad (quad);
4703 9559 : s = DynamicStrings_KillString (s);
4704 : }
4705 9583 : }
4706 :
4707 184481 : static void CodeAddr (unsigned int tokenno, unsigned int quad, unsigned int op1, unsigned int op3)
4708 : {
4709 184481 : tree value;
4710 184481 : unsigned int type;
4711 184481 : location_t location;
4712 :
4713 : /*
4714 : Addr Operator - generates the address of a variable (op1 = &op3).
4715 : */
4716 184481 : if ((SymbolTable_IsConst (op3)) && (! (SymbolTable_IsConstString (op3))))
4717 : {
4718 6 : M2MetaError_MetaErrorT1 (tokenno, (const char *) "error in expression, trying to find the address of a constant {%1Ead}", 69, op3);
4719 : }
4720 : else
4721 : {
4722 184475 : if ((SymbolTable_IsConstString (op3)) && (! (SymbolTable_IsConstStringKnown (op3))))
4723 : {
4724 0 : M2Printf_printf1 ((const char *) "failure in quad: %d\\n", 21, (const unsigned char *) &quad, (sizeof (quad)-1));
4725 : }
4726 184475 : location = M2LexBuf_TokenToLocation (tokenno);
4727 184475 : type = SymbolTable_SkipType (SymbolTable_GetType (op3));
4728 184475 : M2GCCDeclare_DeclareConstant (tokenno, op3); /* We might be asked to find the address of a constant string. */
4729 184475 : M2GCCDeclare_DeclareConstructor (tokenno, quad, op3); /* We might be asked to find the address of a constant string. */
4730 184475 : if (((SymbolTable_IsConst (op3)) && (type == M2Base_Char)) || (SymbolTable_IsConstString (op3)))
4731 : {
4732 168891 : value = m2decl_BuildStringConstant (const_cast <const char * > (static_cast <char * > (NameKey_KeyToCharStar (SymbolTable_GetString (op3)))), static_cast<int> (SymbolTable_GetStringLength (tokenno, op3)));
4733 : }
4734 : else
4735 : {
4736 15584 : value = SymbolConversion_Mod2Gcc (op3);
4737 : }
4738 184475 : m2statement_BuildAssignmentStatement (location, SymbolConversion_Mod2Gcc (op1), m2expr_BuildAddr (location, value, false));
4739 : }
4740 184481 : }
4741 :
4742 5049648 : static void FoldBecomes (M2GCCDeclare_WalkAction p, M2BasicBlock_BasicBlock bb, unsigned int quad)
4743 : {
4744 : /*
4745 : ------------------------------------------------------------------------------
4746 : := Operator
4747 : ------------------------------------------------------------------------------
4748 : Sym1<I> := Sym3<I> := produces a constant
4749 : */
4750 5049648 : if (DeclaredOperandsBecomes (p, quad))
4751 : {
4752 296348 : CheckBreak (quad);
4753 296348 : if ((! (M2Quads_IsConditionalBooleanQuad (quad))) || (M2BasicBlock_IsBasicBlockFirst (bb)))
4754 : {
4755 291284 : if (TypeCheckBecomes (p, quad))
4756 : {
4757 291284 : PerformFoldBecomes (p, quad);
4758 : }
4759 : }
4760 : }
4761 5049648 : }
4762 :
4763 :
4764 : /*
4765 : TryDeclareConst -
4766 : */
4767 :
4768 5049648 : static void TryDeclareConst (unsigned int tokenno, unsigned int sym)
4769 : {
4770 : /* Check whether expr is a constant literal and if so declare it. */
4771 5049648 : M2GCCDeclare_TryDeclareConstant (tokenno, sym);
4772 : /* Check whether expr is a const constructor and if so declare it. */
4773 5049648 : M2GCCDeclare_TryDeclareConstructor (tokenno, sym);
4774 5049648 : }
4775 :
4776 :
4777 : /*
4778 : RemoveQuad - remove quad and ensure p (des) is called.
4779 : */
4780 :
4781 290946 : static void RemoveQuad (M2GCCDeclare_WalkAction p, unsigned int des, unsigned int quad)
4782 : {
4783 66 : (*p.proc) (des);
4784 290946 : NoChange = false;
4785 290946 : M2Quads_SubQuad (quad);
4786 0 : }
4787 :
4788 :
4789 : /*
4790 : DeclaredOperandsBecomes -
4791 : */
4792 :
4793 5049648 : static bool DeclaredOperandsBecomes (M2GCCDeclare_WalkAction p, unsigned int quad)
4794 : {
4795 5049648 : unsigned int des;
4796 5049648 : unsigned int op2;
4797 5049648 : unsigned int expr;
4798 5049648 : bool constExpr;
4799 5049648 : bool overflowChecking;
4800 5049648 : unsigned int despos;
4801 5049648 : unsigned int op2pos;
4802 5049648 : unsigned int exprpos;
4803 5049648 : unsigned int becomespos;
4804 5049648 : M2Quads_QuadOperator op;
4805 :
4806 5049648 : M2Quads_GetQuadOtok (quad, &becomespos, &op, &des, &op2, &expr, &overflowChecking, &constExpr, &despos, &op2pos, &exprpos);
4807 5049648 : M2Debug_Assert (op2pos == M2LexBuf_UnknownTokenNo);
4808 5049648 : TryDeclareConst (exprpos, expr);
4809 5049648 : if ((SymbolTable_IsConst (des)) && (IsConstant (expr)))
4810 : {
4811 : /* Constant folding taking place, but have we resolved op3 yet? */
4812 304416 : if (SymbolConversion_GccKnowsAbout (expr))
4813 : {
4814 : /* avoid gcc warning by using compound statement even if not strictly necessary. */
4815 : /* RemoveSSAPlaceholder (quad, des) ; */
4816 296348 : if (SymbolConversion_GccKnowsAbout (des))
4817 : {
4818 0 : M2MetaError_MetaErrorT1 (despos, (const char *) "constant {%1Ead} should not be reassigned", 41, des);
4819 0 : RemoveQuad (p, des, quad);
4820 0 : return false;
4821 : }
4822 : else
4823 : {
4824 : return true;
4825 : }
4826 : }
4827 : }
4828 : return false;
4829 : /* static analysis guarentees a RETURN statement will be used before here. */
4830 : __builtin_unreachable ();
4831 : }
4832 :
4833 :
4834 : /*
4835 : TypeCheckBecomes - returns TRUE if the type check succeeds.
4836 : */
4837 :
4838 291284 : static bool TypeCheckBecomes (M2GCCDeclare_WalkAction p, unsigned int quad)
4839 : {
4840 291284 : unsigned int des;
4841 291284 : unsigned int op2;
4842 291284 : unsigned int expr;
4843 291284 : bool constExpr;
4844 291284 : bool overflowChecking;
4845 291284 : unsigned int despos;
4846 291284 : unsigned int op2pos;
4847 291284 : unsigned int exprpos;
4848 291284 : unsigned int becomespos;
4849 291284 : M2Quads_QuadOperator op;
4850 :
4851 291284 : M2Quads_GetQuadOtok (quad, &becomespos, &op, &des, &op2, &expr, &overflowChecking, &constExpr, &despos, &op2pos, &exprpos);
4852 291284 : M2Debug_Assert (op2pos == M2LexBuf_UnknownTokenNo);
4853 291284 : if (M2Options_StrictTypeChecking && (! (M2Check_AssignmentTypeCompatible (despos, (const char *) "", 0, des, expr, true))))
4854 : {
4855 0 : M2MetaError_MetaErrorT2 (M2LexBuf_MakeVirtualTok (becomespos, despos, exprpos), (const char *) "assignment check caught mismatch between {%1Ead} and {%2ad}", 59, des, expr);
4856 0 : RemoveQuad (p, des, quad);
4857 0 : return false;
4858 : }
4859 : return true;
4860 : /* static analysis guarentees a RETURN statement will be used before here. */
4861 : __builtin_unreachable ();
4862 : }
4863 :
4864 :
4865 : /*
4866 : PerformFoldBecomes - attempts to fold quad. It propagates constant strings
4867 : and attempts to declare des providing it is a constant
4868 : and expr is resolved.
4869 : */
4870 :
4871 291284 : static void PerformFoldBecomes (M2GCCDeclare_WalkAction p, unsigned int quad)
4872 : {
4873 291284 : unsigned int des;
4874 291284 : unsigned int op2;
4875 291284 : unsigned int expr;
4876 291284 : bool constExpr;
4877 291284 : bool overflowChecking;
4878 291284 : unsigned int despos;
4879 291284 : unsigned int op2pos;
4880 291284 : unsigned int exprpos;
4881 291284 : unsigned int becomespos;
4882 291284 : unsigned int virtpos;
4883 291284 : M2Quads_QuadOperator op;
4884 :
4885 291284 : M2Quads_GetQuadOtok (quad, &becomespos, &op, &des, &op2, &expr, &overflowChecking, &constExpr, &despos, &op2pos, &exprpos);
4886 291284 : M2Debug_Assert (op2pos == M2LexBuf_UnknownTokenNo);
4887 291284 : if ((SymbolTable_IsConst (des)) && (SymbolTable_IsConstString (expr)))
4888 : {
4889 : /* avoid dangling else. */
4890 1146 : if ((SymbolTable_IsConstStringKnown (expr)) && (! (SymbolTable_IsConstStringKnown (des))))
4891 : {
4892 1146 : SymbolTable_CopyConstString (exprpos, des, expr);
4893 : }
4894 : }
4895 290138 : else if ((SymbolTable_GetType (des)) == SymbolTable_NulSym)
4896 : {
4897 : /* avoid dangling else. */
4898 0 : M2Debug_Assert ((SymbolTable_GetType (expr)) != SymbolTable_NulSym);
4899 0 : SymbolTable_PutConst (des, SymbolTable_GetType (expr));
4900 : }
4901 291284 : if ((SymbolTable_GetType (expr)) == SymbolTable_NulSym)
4902 : {
4903 1160 : M2ALU_CheckOrResetOverflow (exprpos, SymbolConversion_Mod2Gcc (expr), M2Quads_MustCheckOverflow (quad));
4904 1160 : SymbolConversion_AddModGcc (des, SymbolConversion_Mod2Gcc (expr));
4905 : }
4906 : else
4907 : {
4908 290124 : if (! (SymbolConversion_GccKnowsAbout (SymbolTable_GetType (des))))
4909 : {
4910 404 : return;
4911 : }
4912 289720 : if (SymbolTable_IsProcedure (expr))
4913 : {
4914 12 : SymbolConversion_AddModGcc (des, m2convert_BuildConvert (M2LexBuf_TokenToLocation (exprpos), SymbolConversion_Mod2Gcc (SymbolTable_GetType (des)), m2expr_BuildAddr (M2LexBuf_TokenToLocation (exprpos), SymbolConversion_Mod2Gcc (expr), false), true));
4915 : }
4916 289708 : else if (SymbolTable_IsValueSolved (expr))
4917 : {
4918 : /* avoid dangling else. */
4919 289708 : SymbolTable_PushValue (expr);
4920 289708 : if (M2ALU_IsValueTypeReal ())
4921 : {
4922 504 : M2ALU_CheckOrResetOverflow (exprpos, M2ALU_PopRealTree (), M2Quads_MustCheckOverflow (quad));
4923 504 : SymbolTable_PushValue (expr);
4924 504 : SymbolConversion_AddModGcc (des, M2ALU_PopRealTree ());
4925 : }
4926 289204 : else if (M2ALU_IsValueTypeSet ())
4927 : {
4928 : /* avoid dangling else. */
4929 3880 : SymbolTable_PopValue (des);
4930 3880 : SymbolTable_PutConstSet (des);
4931 : }
4932 285324 : else if (((M2ALU_IsValueTypeConstructor ()) || (M2ALU_IsValueTypeArray ())) || (M2ALU_IsValueTypeRecord ()))
4933 : {
4934 : /* avoid dangling else. */
4935 428 : SymbolTable_PopValue (des);
4936 428 : SymbolTable_PutConstructor (des);
4937 : }
4938 284896 : else if (M2ALU_IsValueTypeComplex ())
4939 : {
4940 : /* avoid dangling else. */
4941 330 : M2ALU_CheckOrResetOverflow (exprpos, M2ALU_PopComplexTree (), M2Quads_MustCheckOverflow (quad));
4942 330 : SymbolTable_PushValue (expr);
4943 330 : SymbolTable_PopValue (des);
4944 : }
4945 : else
4946 : {
4947 : /* avoid dangling else. */
4948 284566 : M2ALU_CheckOrResetOverflow (exprpos, M2ALU_PopIntegerTree (), M2Quads_MustCheckOverflow (quad));
4949 284566 : if ((SymbolTable_GetType (des)) == SymbolTable_NulSym)
4950 : {
4951 0 : SymbolTable_PushValue (expr);
4952 0 : SymbolConversion_AddModGcc (des, M2ALU_PopIntegerTree ());
4953 : }
4954 : else
4955 : {
4956 284566 : virtpos = M2LexBuf_MakeVirtualTok (becomespos, despos, exprpos);
4957 284566 : SymbolTable_PushValue (expr);
4958 284566 : SymbolConversion_AddModGcc (des, m2convert_BuildConvert (M2LexBuf_TokenToLocation (virtpos), SymbolConversion_Mod2Gcc (SymbolTable_GetType (des)), M2ALU_PopIntegerTree (), false));
4959 : }
4960 : }
4961 : }
4962 : else
4963 : {
4964 : /* avoid dangling else. */
4965 0 : virtpos = M2LexBuf_MakeVirtualTok (becomespos, despos, exprpos);
4966 0 : M2ALU_CheckOrResetOverflow (exprpos, SymbolConversion_Mod2Gcc (des), M2Quads_MustCheckOverflow (quad));
4967 0 : SymbolConversion_AddModGcc (des, m2convert_BuildConvert (M2LexBuf_TokenToLocation (virtpos), SymbolConversion_Mod2Gcc (SymbolTable_GetType (des)), m2decl_DeclareKnownConstant (M2LexBuf_TokenToLocation (virtpos), SymbolConversion_Mod2Gcc (SymbolTable_GetType (expr)), SymbolConversion_Mod2Gcc (expr)), false));
4968 : }
4969 : }
4970 290880 : RemoveQuad (p, des, quad);
4971 290880 : M2Debug_Assert ((m2block_RememberConstant (SymbolConversion_Mod2Gcc (des))) == (SymbolConversion_Mod2Gcc (des)));
4972 : }
4973 :
4974 :
4975 : /*
4976 : CodeTry - starts building a GCC 'try' node.
4977 : */
4978 :
4979 2890 : static void CodeTry (void)
4980 : {
4981 2890 : location_t location;
4982 :
4983 2890 : location = M2LexBuf_TokenToLocation (CurrentQuadToken);
4984 2890 : handlerBlock = NULL;
4985 2890 : tryBlock = m2except_BuildTryBegin (location);
4986 2890 : }
4987 :
4988 :
4989 : /*
4990 : CodeThrow - builds a GCC 'throw' node.
4991 : */
4992 :
4993 320 : static void CodeThrow (unsigned int value)
4994 : {
4995 320 : location_t location;
4996 :
4997 320 : location = M2LexBuf_TokenToLocation (CurrentQuadToken);
4998 320 : if (value == SymbolTable_NulSym)
4999 : {
5000 210 : m2type_AddStatement (location, m2except_BuildThrow (location, (tree) (NULL)));
5001 : }
5002 : else
5003 : {
5004 110 : M2GCCDeclare_DeclareConstant (CurrentQuadToken, value); /* Checks to see whether it is a constant and declares it. */
5005 110 : m2type_AddStatement (location, m2except_BuildThrow (location, m2convert_BuildConvert (location, m2type_GetIntegerType (), SymbolConversion_Mod2Gcc (value), false))); /* Checks to see whether it is a constant and declares it. */
5006 : }
5007 320 : }
5008 :
5009 156 : static void CodeRetry (unsigned int destQuad)
5010 : {
5011 156 : location_t location;
5012 :
5013 156 : location = M2LexBuf_TokenToLocation (CurrentQuadToken);
5014 156 : m2statement_BuildGoto (location, reinterpret_cast <char * > (DynamicStrings_string (CreateLabelName (destQuad))));
5015 156 : }
5016 :
5017 2890 : static void CodeCatchBegin (void)
5018 : {
5019 2890 : location_t location;
5020 :
5021 2890 : location = M2LexBuf_TokenToLocation (CurrentQuadToken);
5022 2890 : m2except_BuildTryEnd (tryBlock);
5023 2890 : handlerBlock = m2except_BuildCatchBegin (location);
5024 2890 : }
5025 :
5026 2890 : static void CodeCatchEnd (void)
5027 : {
5028 2890 : location_t location;
5029 :
5030 2890 : location = M2LexBuf_TokenToLocation (CurrentQuadToken);
5031 2890 : tryBlock = m2except_BuildCatchEnd (location, handlerBlock, tryBlock);
5032 2890 : m2type_AddStatement (location, tryBlock);
5033 2890 : }
5034 :
5035 :
5036 : /*
5037 : DescribeTypeError -
5038 : */
5039 :
5040 6 : static void DescribeTypeError (unsigned int token, unsigned int op1, unsigned int op2)
5041 : {
5042 6 : M2MetaError_MetaErrorT2 (token, (const char *) "incompatible set types in assignment, assignment between {%1ERad} and {%2ad}", 76, op1, op2);
5043 6 : M2MetaError_MetaError2 ((const char *) "set types are {%1CDtsad} and {%2Dtsad}", 38, op1, op2);
5044 6 : }
5045 :
5046 :
5047 : /*
5048 : DefaultConvertGM2 - provides a simple mapping between
5049 : front end data types and GCC equivalents.
5050 : This is only used to aid assignment of
5051 : typed constants.
5052 : */
5053 :
5054 21303 : static tree DefaultConvertGM2 (unsigned int sym)
5055 : {
5056 21303 : sym = SymbolTable_SkipType (sym);
5057 21303 : if (sym == M2Bitset_Bitset)
5058 : {
5059 0 : return m2type_GetWordType ();
5060 : }
5061 : else
5062 : {
5063 21303 : return SymbolConversion_Mod2Gcc (sym);
5064 : }
5065 : /* static analysis guarentees a RETURN statement will be used before here. */
5066 : __builtin_unreachable ();
5067 : }
5068 :
5069 :
5070 : /*
5071 : FoldConstBecomes - returns a Tree containing op3.
5072 : The tree will have been folded and
5073 : type converted if necessary.
5074 : */
5075 :
5076 188786 : static tree FoldConstBecomes (unsigned int tokenno, unsigned int op1, unsigned int op3)
5077 : {
5078 188786 : tree t;
5079 188786 : tree type;
5080 188786 : location_t location;
5081 :
5082 188786 : if ((SymbolTable_IsConstSet (op3)) || (((SymbolTable_SkipType (SymbolTable_GetType (op3))) != SymbolTable_NulSym) && (SymbolTable_IsSet (SymbolTable_SkipType (SymbolTable_GetType (op3))))))
5083 : {
5084 3482 : if ((SymbolTable_SkipType (SymbolTable_GetTypeMode (op1))) != (SymbolTable_SkipType (SymbolTable_GetTypeMode (op3))))
5085 : {
5086 6 : DescribeTypeError (tokenno, op1, op3);
5087 : /* Assigning an errant op3 might ICE, therefore it is safer to return op1. */
5088 6 : return SymbolConversion_Mod2Gcc (op1);
5089 : }
5090 : }
5091 188780 : location = M2LexBuf_TokenToLocation (tokenno);
5092 188780 : M2GCCDeclare_TryDeclareConstant (tokenno, op3);
5093 188780 : t = SymbolConversion_Mod2Gcc (op3);
5094 188780 : M2Debug_Assert (t != NULL);
5095 188780 : if (IsConstant (op3))
5096 : {
5097 : /* avoid gcc warning by using compound statement even if not strictly necessary. */
5098 53447 : if (SymbolTable_IsProcedure (op3))
5099 : {
5100 : return t;
5101 : }
5102 52775 : else if (((! (SymbolTable_IsConstString (op3))) && (! (SymbolTable_IsConstSet (op3)))) && ((SymbolTable_SkipType (SymbolTable_GetType (op3))) != (SymbolTable_SkipType (SymbolTable_GetType (op1)))))
5103 : {
5104 : /* avoid dangling else. */
5105 21303 : type = DefaultConvertGM2 (SymbolTable_GetType (op1)); /* do we need this now? --fixme-- */
5106 21303 : t = m2convert_ConvertConstantAndCheck (location, type, t); /* do we need this now? --fixme-- */
5107 : }
5108 31472 : else if ((SymbolTable_GetType (op1)) != SymbolTable_NulSym)
5109 : {
5110 : /* avoid dangling else. */
5111 31472 : t = M2GenGCC_StringToChar (SymbolConversion_Mod2Gcc (op3), SymbolTable_GetType (op1), op3);
5112 : }
5113 : }
5114 : return t;
5115 : /* static analysis guarentees a RETURN statement will be used before here. */
5116 : __builtin_unreachable ();
5117 : }
5118 :
5119 :
5120 : /*
5121 : checkArrayElements - return TRUE if des or expr are not arrays.
5122 : If they are arrays and have different number of
5123 : elements return FALSE, otherwise TRUE.
5124 : */
5125 :
5126 188786 : static bool checkArrayElements (unsigned int des, unsigned int expr, unsigned int virtpos, unsigned int despos, unsigned int exprpos)
5127 : {
5128 188786 : tree e1;
5129 188786 : tree e3;
5130 188786 : unsigned int t1;
5131 188786 : unsigned int t3;
5132 :
5133 188786 : t1 = SymbolTable_GetType (des);
5134 188786 : t3 = SymbolTable_GetType (expr);
5135 188786 : if ((((t1 != SymbolTable_NulSym) && (t3 != SymbolTable_NulSym)) && (SymbolTable_IsArray (SymbolTable_SkipType (SymbolTable_GetType (expr))))) && (SymbolTable_IsArray (SymbolTable_SkipType (SymbolTable_GetType (des)))))
5136 : {
5137 : /* both arrays continue checking */
5138 476 : e1 = m2type_GetArrayNoOfElements (M2LexBuf_TokenToLocation (despos), SymbolConversion_Mod2Gcc (SymbolTable_SkipType (SymbolTable_GetType (des))));
5139 476 : e3 = m2type_GetArrayNoOfElements (M2LexBuf_TokenToLocation (exprpos), SymbolConversion_Mod2Gcc (SymbolTable_SkipType (SymbolTable_GetType (expr))));
5140 476 : if ((m2expr_CompareTrees (e1, e3)) != 0)
5141 : {
5142 0 : M2MetaError_MetaErrorT2 (virtpos, (const char *) "not allowed to assign array {%2Ead} to {%1ad} as they have a different number of elements", 89, des, expr);
5143 0 : return false;
5144 : }
5145 : }
5146 : return true;
5147 : /* static analysis guarentees a RETURN statement will be used before here. */
5148 : __builtin_unreachable ();
5149 : }
5150 :
5151 :
5152 : /*
5153 : CodeInitAddress -
5154 : */
5155 :
5156 54 : static void CodeInitAddress (unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3)
5157 : {
5158 54 : location_t location;
5159 :
5160 54 : M2GCCDeclare_DeclareConstant (CurrentQuadToken, op3); /* checks to see whether it is a constant and declares it */
5161 54 : M2GCCDeclare_DeclareConstructor (CurrentQuadToken, quad, op3); /* checks to see whether it is a constant and declares it */
5162 54 : location = M2LexBuf_TokenToLocation (CurrentQuadToken);
5163 54 : M2Debug_Assert (op2 == SymbolTable_NulSym);
5164 54 : M2Debug_Assert ((SymbolTable_GetMode (op1)) == SymbolTable_LeftValue);
5165 54 : m2statement_BuildAssignmentStatement (location, SymbolConversion_Mod2Gcc (op1), m2convert_BuildConvert (location, m2type_GetPointerType (), SymbolConversion_Mod2Gcc (op3), false));
5166 54 : }
5167 :
5168 :
5169 : /*
5170 : checkRecordTypes - returns TRUE if des is not a record or if the record
5171 : is the same type as expr.
5172 : */
5173 :
5174 188786 : static bool checkRecordTypes (unsigned int des, unsigned int expr, unsigned int virtpos)
5175 : {
5176 188786 : unsigned int t1;
5177 188786 : unsigned int t2;
5178 :
5179 188786 : if (((SymbolTable_GetType (des)) == SymbolTable_NulSym) || ((SymbolTable_GetMode (des)) == SymbolTable_LeftValue))
5180 : {
5181 24136 : return true;
5182 : }
5183 : else
5184 : {
5185 164650 : t1 = SymbolTable_SkipType (SymbolTable_GetType (des));
5186 164650 : if (SymbolTable_IsRecord (t1))
5187 : {
5188 : /* avoid gcc warning by using compound statement even if not strictly necessary. */
5189 326 : if ((SymbolTable_GetType (expr)) == SymbolTable_NulSym)
5190 : {
5191 0 : M2MetaError_MetaErrorT2 (virtpos, (const char *) "cannot assign an operand of type {%1Ets} to a record type {%2tsa}", 65, expr, des);
5192 0 : return false;
5193 : }
5194 : else
5195 : {
5196 326 : t2 = SymbolTable_SkipType (SymbolTable_GetType (expr));
5197 326 : if (t1 == t2)
5198 : {
5199 : return true;
5200 : }
5201 : else
5202 : {
5203 0 : M2MetaError_MetaErrorT2 (virtpos, (const char *) "cannot assign an operand of type {%1ts} to a record type {%2tsa}", 64, expr, des);
5204 0 : return false;
5205 : }
5206 : }
5207 : }
5208 : }
5209 : return true;
5210 : /* static analysis guarentees a RETURN statement will be used before here. */
5211 : __builtin_unreachable ();
5212 : }
5213 :
5214 :
5215 : /*
5216 : checkIncorrectMeta - checks to see if des and expr are assignment compatible is allows
5217 : generic system types to be assigned.
5218 : */
5219 :
5220 188786 : static bool checkIncorrectMeta (unsigned int des, unsigned int expr, unsigned int virtpos)
5221 : {
5222 188786 : unsigned int t1;
5223 188786 : unsigned int t2;
5224 :
5225 188786 : t1 = SymbolTable_SkipType (SymbolTable_GetType (des));
5226 188786 : t2 = SymbolTable_SkipType (SymbolTable_GetType (expr));
5227 188786 : if ((((t1 == SymbolTable_NulSym) || ((SymbolTable_GetMode (des)) == SymbolTable_LeftValue)) || (t2 == SymbolTable_NulSym)) || ((SymbolTable_GetMode (expr)) == SymbolTable_LeftValue))
5228 : {
5229 24832 : return true;
5230 : }
5231 163954 : else if (((t1 != t2) && (! (M2System_IsGenericSystemType (t1)))) && (! (M2System_IsGenericSystemType (t2))))
5232 : {
5233 : /* avoid dangling else. */
5234 31180 : if (((SymbolTable_IsArray (t1)) || (SymbolTable_IsSet (t1))) || (SymbolTable_IsRecord (t1)))
5235 : {
5236 12 : if (! (M2Base_IsAssignmentCompatible (t1, t2)))
5237 : {
5238 0 : ErrorMessageDecl (virtpos, (const char *) "illegal assignment error between {%1Etad} and {%2tad}", 53, des, expr, true);
5239 0 : return false;
5240 : }
5241 : }
5242 : }
5243 : return true;
5244 : /* static analysis guarentees a RETURN statement will be used before here. */
5245 : __builtin_unreachable ();
5246 : }
5247 :
5248 :
5249 : /*
5250 : checkBecomes - returns TRUE if the checks pass.
5251 : */
5252 :
5253 188786 : static bool checkBecomes (unsigned int des, unsigned int expr, unsigned int virtpos, unsigned int despos, unsigned int exprpos)
5254 : {
5255 188786 : if (((! (checkArrayElements (des, expr, virtpos, despos, exprpos))) || (! (checkRecordTypes (des, expr, virtpos)))) || (! (checkIncorrectMeta (des, expr, virtpos))))
5256 : {
5257 0 : return false;
5258 : }
5259 : return true;
5260 : /* static analysis guarentees a RETURN statement will be used before here. */
5261 : __builtin_unreachable ();
5262 : }
5263 :
5264 :
5265 : /*
5266 : checkDeclare - checks to see if sym is declared and if it is not then declare it.
5267 : */
5268 :
5269 10880 : static void checkDeclare (unsigned int sym)
5270 : {
5271 10880 : if ((sym != SymbolTable_NulSym) && (! (SymbolConversion_GccKnowsAbout (sym))))
5272 : {
5273 : /* avoid gcc warning by using compound statement even if not strictly necessary. */
5274 0 : if ((SymbolTable_IsTemporary (sym)) && (SymbolTable_IsVariableSSA (sym)))
5275 : {
5276 0 : M2GCCDeclare_DeclareLocalVariable (sym);
5277 : }
5278 0 : else if (SymbolTable_IsProcedure (sym))
5279 : {
5280 : /* avoid dangling else. */
5281 0 : M2GCCDeclare_DeclareProcedure (sym);
5282 : }
5283 : }
5284 10880 : }
5285 :
5286 :
5287 : /*
5288 : PerformCodeBecomes -
5289 : */
5290 :
5291 188786 : static void PerformCodeBecomes (location_t location, unsigned int virtpos, unsigned int des, unsigned int expr)
5292 : {
5293 188786 : tree destree;
5294 188786 : tree exprtree;
5295 :
5296 188786 : destree = SymbolConversion_Mod2Gcc (des);
5297 188786 : exprtree = FoldConstBecomes (virtpos, des, expr);
5298 188786 : if ((SymbolTable_IsVar (des)) && (SymbolTable_IsVariableSSA (des)))
5299 : {
5300 0 : Replace (des, exprtree);
5301 : }
5302 188786 : else if (m2type_IsGccStrictTypeEquivalent (destree, exprtree))
5303 : {
5304 : /* avoid dangling else. */
5305 188714 : m2statement_BuildAssignmentStatement (location, destree, exprtree);
5306 : }
5307 : else
5308 : {
5309 : /* avoid dangling else. */
5310 72 : m2statement_CopyByField (location, destree, exprtree);
5311 : }
5312 188786 : }
5313 :
5314 189676 : static void CodeBecomes (unsigned int quad)
5315 : {
5316 189676 : bool constExpr;
5317 189676 : bool overflowChecking;
5318 189676 : M2Quads_QuadOperator op;
5319 189676 : unsigned int des;
5320 189676 : unsigned int op2;
5321 189676 : unsigned int expr;
5322 189676 : unsigned int virtpos;
5323 189676 : unsigned int becomespos;
5324 189676 : unsigned int despos;
5325 189676 : unsigned int op2pos;
5326 189676 : unsigned int exprpos;
5327 189676 : tree length;
5328 189676 : tree exprt;
5329 189676 : location_t location;
5330 :
5331 : /*
5332 : ------------------------------------------------------------------------------
5333 : := Operator
5334 : ------------------------------------------------------------------------------
5335 : Sym1<I> := Sym3<I> := produces a constant
5336 : Sym1<O> := Sym3<O> := has the effect Mem[Sym1<I>] := Mem[Sym3<I>]
5337 : */
5338 189676 : M2Quads_GetQuadOtok (quad, &becomespos, &op, &des, &op2, &expr, &overflowChecking, &constExpr, &despos, &op2pos, &exprpos);
5339 189676 : M2Debug_Assert (op2pos == M2LexBuf_UnknownTokenNo);
5340 189676 : M2GCCDeclare_DeclareConstant (exprpos, expr); /* Check to see whether expr is a constant and declare it. */
5341 189676 : M2GCCDeclare_DeclareConstructor (exprpos, quad, expr); /* Check to see whether expr is a constant and declare it. */
5342 189676 : virtpos = M2LexBuf_MakeVirtualTok (becomespos, despos, exprpos);
5343 189676 : location = M2LexBuf_TokenToLocation (virtpos);
5344 189676 : if (M2Options_StrictTypeChecking && (! (M2Check_AssignmentTypeCompatible (virtpos, (const char *) "", 0, des, expr, true))))
5345 : {
5346 0 : ErrorMessageDecl (virtpos, (const char *) "assignment check caught mismatch between {%1Ead} and {%2ad}", 59, des, expr, true);
5347 : }
5348 189676 : if ((SymbolTable_IsConstString (expr)) && (! (SymbolTable_IsConstStringKnown (expr))))
5349 : {
5350 0 : M2MetaError_MetaErrorT2 (virtpos, (const char *) "internal error: CodeBecomes {%1Aad} in quad {%2n}", 49, des, quad);
5351 : }
5352 189676 : if ((SymbolTable_IsConst (des)) && (! (SymbolConversion_GccKnowsAbout (des))))
5353 : {
5354 6 : M2GCCDeclare_ConstantKnownAndUsed (des, CheckConstant (virtpos, des, expr));
5355 : }
5356 189670 : else if ((SymbolTable_IsConstString (expr)) && ((SymbolTable_SkipTypeAndSubrange (SymbolTable_GetType (des))) != M2Base_Char))
5357 : {
5358 : /* avoid dangling else. */
5359 546 : checkDeclare (des);
5360 546 : if (! (M2GenGCC_PrepareCopyString (becomespos, &length, &exprt, expr, SymbolTable_SkipType (SymbolTable_GetType (des)))))
5361 : {
5362 12 : ErrorMessageDecl (virtpos, (const char *) "string constant {%1Ea} is too large to be assigned to the array {%2ad}", 70, expr, des, true);
5363 : }
5364 546 : m2type_AddStatement (location, MaybeDebugBuiltinMemcpy (location, m2expr_BuildAddr (location, SymbolConversion_Mod2Gcc (des), false), m2expr_BuildAddr (location, exprt, false), length));
5365 : }
5366 : else
5367 : {
5368 : /* avoid dangling else. */
5369 189124 : if ((((M2System_IsGenericSystemType (SymbolTable_SkipType (SymbolTable_GetType (des)))) != (M2System_IsGenericSystemType (SymbolTable_SkipType (SymbolTable_GetType (expr))))) || (((SymbolTable_IsUnbounded (SymbolTable_SkipType (SymbolTable_GetType (des)))) && (SymbolTable_IsUnbounded (SymbolTable_SkipType (SymbolTable_GetType (expr))))) && ((M2System_IsGenericSystemType (SymbolTable_SkipType (SymbolTable_GetType (SymbolTable_GetType (des))))) != (M2System_IsGenericSystemType (SymbolTable_SkipType (SymbolTable_GetType (SymbolTable_GetType (expr)))))))) && (! (IsConstant (expr))))
5370 : {
5371 338 : checkDeclare (des);
5372 338 : m2type_AddStatement (location, MaybeDebugBuiltinMemcpy (location, m2expr_BuildAddr (location, SymbolConversion_Mod2Gcc (des), false), m2expr_BuildAddr (location, SymbolConversion_Mod2Gcc (expr), false), m2expr_BuildSize (location, SymbolConversion_Mod2Gcc (des), false)));
5373 : }
5374 : else
5375 : {
5376 188786 : if (checkBecomes (des, expr, virtpos, despos, exprpos))
5377 : {
5378 188786 : PerformCodeBecomes (location, virtpos, des, expr);
5379 : }
5380 : else
5381 : {
5382 0 : M2Quads_SubQuad (quad); /* We don't want multiple errors for the quad. */
5383 : }
5384 : }
5385 : }
5386 189676 : }
5387 :
5388 :
5389 : /*
5390 : getrvalue -
5391 : */
5392 :
5393 10564 : static tree getrvalue (location_t location, unsigned int expr, unsigned int type, bool islvalue)
5394 : {
5395 10564 : return m2expr_GetRValue (location, SymbolConversion_Mod2Gcc (expr), SymbolConversion_Mod2Gcc (type), islvalue);
5396 : /* static analysis guarentees a RETURN statement will be used before here. */
5397 : __builtin_unreachable ();
5398 : }
5399 :
5400 :
5401 : /*
5402 : LValueToGenericPtrOrConvert - if sym is an lvalue then convert to pointer type
5403 : else convert to type, type. Return the converted tree.
5404 : */
5405 :
5406 18813 : static tree LValueToGenericPtrOrConvert (unsigned int sym, tree type)
5407 : {
5408 18813 : tree n;
5409 18813 : location_t location;
5410 :
5411 18813 : n = SymbolConversion_Mod2Gcc (sym);
5412 18813 : location = M2LexBuf_TokenToLocation (SymbolTable_GetDeclaredMod (sym));
5413 18813 : if (n == NULL)
5414 : {
5415 0 : M2Error_InternalError ((const char *) "expecting symbol to be resolved", 31);
5416 : }
5417 18813 : if ((SymbolTable_GetMode (sym)) == SymbolTable_LeftValue)
5418 : {
5419 0 : n = m2convert_BuildConvert (location, m2type_GetPointerType (), n, false);
5420 : }
5421 : else
5422 : {
5423 18813 : n = m2convert_BuildConvert (location, type, n, false);
5424 : }
5425 18813 : return n;
5426 : /* static analysis guarentees a RETURN statement will be used before here. */
5427 : __builtin_unreachable ();
5428 : }
5429 :
5430 :
5431 : /*
5432 : FoldBinary - check whether we can fold the binop operation.
5433 : */
5434 :
5435 722940 : static void FoldBinary (unsigned int tokenno, M2GCCDeclare_WalkAction p, m2expr_BuildBinProcedure binop, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3)
5436 : {
5437 722940 : tree tl;
5438 722940 : tree tr;
5439 722940 : tree tv;
5440 722940 : tree resType;
5441 722940 : location_t location;
5442 :
5443 : /* firstly ensure that constant literals are declared */
5444 722940 : M2GCCDeclare_TryDeclareConstant (tokenno, op3);
5445 722940 : M2GCCDeclare_TryDeclareConstant (tokenno, op2);
5446 722940 : location = M2LexBuf_TokenToLocation (tokenno);
5447 722940 : if ((SymbolTable_IsConst (op2)) && (SymbolTable_IsConst (op3)))
5448 : {
5449 40856 : if ((SymbolConversion_GccKnowsAbout (op2)) && (SymbolConversion_GccKnowsAbout (op3)))
5450 : {
5451 : /* avoid gcc warning by using compound statement even if not strictly necessary. */
5452 : /* fine, we can take advantage of this and fold constants */
5453 34164 : if (SymbolTable_IsConst (op1))
5454 : {
5455 34164 : M2Debug_Assert ((M2Base_MixTypes (FindType (op3), FindType (op2), tokenno)) != SymbolTable_NulSym);
5456 34164 : SymbolTable_PutConst (op1, M2Base_MixTypes (FindType (op3), FindType (op2), tokenno));
5457 34164 : tl = M2GenGCC_LValueToGenericPtr (location, op2);
5458 34164 : tr = M2GenGCC_LValueToGenericPtr (location, op3);
5459 34164 : if ((SymbolTable_GetType (op1)) == SymbolTable_NulSym)
5460 : {
5461 0 : resType = m2type_GetM2ZType ();
5462 : }
5463 : else
5464 : {
5465 34164 : resType = SymbolConversion_Mod2Gcc (SymbolTable_GetType (op1));
5466 : }
5467 34164 : tl = m2convert_BuildConvert (location, resType, tl, false);
5468 34164 : tr = m2convert_BuildConvert (location, resType, tr, false);
5469 34164 : tv = (*binop.proc) (location, tl, tr, true);
5470 34164 : M2ALU_CheckOrResetOverflow (tokenno, tv, M2Quads_MustCheckOverflow (quad));
5471 34152 : SymbolConversion_AddModGcc (op1, m2decl_DeclareKnownConstant (location, resType, tv));
5472 34152 : (*p.proc) (op1);
5473 34152 : NoChange = false;
5474 34152 : M2Quads_SubQuad (quad);
5475 : }
5476 : /* we can still fold the expression, but not the assignment,
5477 : however, we will not do this here but in CodeBinary
5478 : */
5479 : }
5480 : }
5481 722928 : }
5482 :
5483 :
5484 : /*
5485 : ConvertBinaryOperands -
5486 : */
5487 :
5488 133505 : static void ConvertBinaryOperands (location_t location, tree *tl, tree *tr, unsigned int type, unsigned int op2, unsigned int op3)
5489 : {
5490 133505 : (*tl) = NULL;
5491 133505 : (*tr) = NULL;
5492 133505 : if ((SymbolTable_GetMode (op2)) == SymbolTable_LeftValue)
5493 : {
5494 90 : (*tl) = M2GenGCC_LValueToGenericPtr (location, op2);
5495 90 : type = M2System_Address;
5496 : }
5497 133505 : if ((SymbolTable_GetMode (op3)) == SymbolTable_LeftValue)
5498 : {
5499 0 : (*tr) = M2GenGCC_LValueToGenericPtr (location, op3);
5500 0 : type = M2System_Address;
5501 : }
5502 133505 : if (((*tl) == NULL) && ((*tr) == NULL))
5503 : {
5504 133415 : (*tl) = m2convert_BuildConvert (location, SymbolConversion_Mod2Gcc (type), SymbolConversion_Mod2Gcc (op2), false);
5505 133415 : (*tr) = m2convert_BuildConvert (location, SymbolConversion_Mod2Gcc (type), SymbolConversion_Mod2Gcc (op3), false);
5506 : }
5507 90 : else if ((*tl) == NULL)
5508 : {
5509 : /* avoid dangling else. */
5510 0 : (*tl) = m2convert_BuildConvert (location, SymbolConversion_Mod2Gcc (type), SymbolConversion_Mod2Gcc (op2), false);
5511 : }
5512 90 : else if ((*tr) == NULL)
5513 : {
5514 : /* avoid dangling else. */
5515 90 : (*tr) = m2convert_BuildConvert (location, SymbolConversion_Mod2Gcc (type), SymbolConversion_Mod2Gcc (op3), false);
5516 : }
5517 133505 : }
5518 :
5519 :
5520 : /*
5521 : CodeBinaryCheck - encode a binary arithmetic operation.
5522 : */
5523 :
5524 48704 : static void CodeBinaryCheck (m2expr_BuildBinCheckProcedure binop, unsigned int quad)
5525 : {
5526 48704 : M2Quads_QuadOperator op;
5527 48704 : unsigned int op1;
5528 48704 : unsigned int op2;
5529 48704 : unsigned int op3;
5530 48704 : unsigned int op1pos;
5531 48704 : unsigned int op2pos;
5532 48704 : unsigned int op3pos;
5533 48704 : unsigned int lowestType;
5534 48704 : unsigned int type;
5535 48704 : tree min;
5536 48704 : tree max;
5537 48704 : tree lowest;
5538 48704 : tree tv;
5539 48704 : tree tl;
5540 48704 : tree tr;
5541 48704 : location_t location;
5542 :
5543 : /* firstly ensure that constant literals are declared. */
5544 48704 : M2Quads_GetQuadtok (quad, &op, &op1, &op2, &op3, &op1pos, &op2pos, &op3pos);
5545 48704 : M2GCCDeclare_DeclareConstant (op3pos, op3);
5546 48704 : M2GCCDeclare_DeclareConstant (op2pos, op2);
5547 48704 : location = M2LexBuf_TokenToLocation (op1pos);
5548 48704 : type = MixTypesBinary (op2, op3, op1pos, M2Quads_MustCheckOverflow (quad));
5549 48704 : ConvertBinaryOperands (location, &tl, &tr, type, op2, op3);
5550 48704 : lowestType = SymbolTable_GetLType (op1);
5551 48704 : lowest = SymbolConversion_Mod2Gcc (lowestType);
5552 48704 : if (M2Range_GetMinMax (CurrentQuadToken, lowestType, &min, &max))
5553 : {
5554 45272 : tv = (*binop.proc) (location, tl, tr, lowest, min, max);
5555 : }
5556 : else
5557 : {
5558 3432 : tv = (*binop.proc) (location, tl, tr, NULL, NULL, NULL);
5559 : }
5560 48704 : M2ALU_CheckOrResetOverflow (op1pos, tv, M2Quads_MustCheckOverflow (quad));
5561 48704 : if (SymbolTable_IsConst (op1))
5562 : {
5563 : /* still have a constant which was not resolved, pass it to gcc. */
5564 0 : M2Debug_Assert ((M2Base_MixTypes (FindType (op3), FindType (op2), op3pos)) != SymbolTable_NulSym);
5565 0 : SymbolTable_PutConst (op1, M2Base_MixTypes (FindType (op3), FindType (op2), op3pos));
5566 0 : M2GCCDeclare_ConstantKnownAndUsed (op1, m2decl_DeclareKnownConstant (location, SymbolConversion_Mod2Gcc (SymbolTable_GetType (op3)), tv));
5567 : }
5568 : else
5569 : {
5570 48704 : if (M2SSA_EnableSSA && (SymbolTable_IsVariableSSA (op1)))
5571 : {
5572 : Replace (op1, tv);
5573 : }
5574 : else
5575 : {
5576 48704 : m2statement_BuildAssignmentStatement (location, SymbolConversion_Mod2Gcc (op1), tv);
5577 : }
5578 : }
5579 48704 : }
5580 :
5581 :
5582 : /*
5583 : MixTypesBinary - depending upon overflowCheck do not check pointer arithmetic.
5584 : */
5585 :
5586 60598 : static unsigned int MixTypesBinary (unsigned int left, unsigned int right, unsigned int tokpos, bool overflowCheck)
5587 : {
5588 60598 : if (! overflowCheck && ((SymbolTable_IsPointer (SymbolTable_GetTypeMode (left))) || (SymbolTable_IsPointer (SymbolTable_GetTypeMode (right)))))
5589 : {
5590 8678 : return M2System_Address;
5591 : }
5592 : else
5593 : {
5594 51920 : return M2Base_MixTypesDecl (left, right, FindType (left), FindType (right), tokpos);
5595 : }
5596 : /* static analysis guarentees a RETURN statement will be used before here. */
5597 : __builtin_unreachable ();
5598 : }
5599 :
5600 :
5601 : /*
5602 : CodeBinary - encode a binary arithmetic operation.
5603 : */
5604 :
5605 11894 : static void CodeBinary (m2expr_BuildBinProcedure binop, unsigned int quad)
5606 : {
5607 11894 : M2Quads_QuadOperator op;
5608 11894 : unsigned int op1;
5609 11894 : unsigned int op2;
5610 11894 : unsigned int op3;
5611 11894 : unsigned int op1pos;
5612 11894 : unsigned int op2pos;
5613 11894 : unsigned int op3pos;
5614 11894 : unsigned int type;
5615 11894 : tree tv;
5616 11894 : tree tl;
5617 11894 : tree tr;
5618 11894 : location_t location;
5619 :
5620 : /* firstly ensure that constant literals are declared */
5621 11894 : M2Quads_GetQuadtok (quad, &op, &op1, &op2, &op3, &op1pos, &op2pos, &op3pos);
5622 11894 : M2GCCDeclare_DeclareConstant (op3pos, op3);
5623 11894 : M2GCCDeclare_DeclareConstant (op2pos, op2);
5624 11894 : location = M2LexBuf_TokenToLocation (op1pos);
5625 11894 : type = MixTypesBinary (op2, op3, op1pos, M2Quads_MustCheckOverflow (quad));
5626 11894 : ConvertBinaryOperands (location, &tl, &tr, type, op2, op3);
5627 11894 : tv = (*binop.proc) (location, tl, tr, false);
5628 11894 : M2ALU_CheckOrResetOverflow (op1pos, tv, M2Quads_MustCheckOverflow (quad));
5629 11894 : if (SymbolTable_IsConst (op1))
5630 : {
5631 : /* still have a constant which was not resolved, pass it to gcc */
5632 0 : M2Debug_Assert ((M2Base_MixTypes (FindType (op3), FindType (op2), op1pos)) != SymbolTable_NulSym);
5633 0 : SymbolTable_PutConst (op1, M2Base_MixTypes (FindType (op3), FindType (op2), op1pos));
5634 0 : M2GCCDeclare_ConstantKnownAndUsed (op1, m2decl_DeclareKnownConstant (location, SymbolConversion_Mod2Gcc (SymbolTable_GetType (op3)), tv));
5635 : }
5636 : else
5637 : {
5638 11894 : if (M2SSA_EnableSSA && (SymbolTable_IsVariableSSA (op1)))
5639 : {
5640 : Replace (op1, tv);
5641 : }
5642 : else
5643 : {
5644 11894 : m2statement_BuildAssignmentStatement (location, SymbolConversion_Mod2Gcc (op1), tv);
5645 : }
5646 : }
5647 11894 : }
5648 :
5649 :
5650 : /*
5651 : NoWalkProcedure -
5652 : */
5653 :
5654 0 : static void NoWalkProcedure (unsigned int param __attribute__((unused)))
5655 : {
5656 0 : }
5657 :
5658 :
5659 : /*
5660 : CheckBinaryExpressionTypes - returns TRUE if all expression checks pass.
5661 : If the expression check fails quad is removed,
5662 : the walk procedure (des) is called and NoChange is
5663 : set to FALSE.
5664 : */
5665 :
5666 4088 : static bool CheckBinaryExpressionTypes (unsigned int quad, M2GCCDeclare_WalkAction p)
5667 : {
5668 4088 : unsigned int des;
5669 4088 : unsigned int left;
5670 4088 : unsigned int right;
5671 4088 : bool typeChecking;
5672 4088 : bool constExpr;
5673 4088 : bool overflowChecking;
5674 4088 : unsigned int despos;
5675 4088 : unsigned int leftpos;
5676 4088 : unsigned int rightpos;
5677 4088 : unsigned int operatorpos;
5678 4088 : unsigned int subexprpos;
5679 4088 : M2Quads_QuadOperator op;
5680 :
5681 4088 : M2Quads_GetQuadOTypetok (quad, &operatorpos, &op, &des, &left, &right, &overflowChecking, &typeChecking, &constExpr, &despos, &leftpos, &rightpos);
5682 4088 : if ((typeChecking && (op != M2Quads_LogicalRotateOp)) && (op != M2Quads_LogicalShiftOp))
5683 : {
5684 1934 : subexprpos = M2LexBuf_MakeVirtualTok (operatorpos, leftpos, rightpos);
5685 1934 : if (M2Options_StrictTypeChecking && (! (M2Check_ExpressionTypeCompatible (subexprpos, (const char *) "", 0, left, right, M2Options_StrictTypeChecking, false))))
5686 : {
5687 0 : M2MetaError_MetaErrorT2 (subexprpos, (const char *) "expression mismatch between {%1Etad} and {%2tad}", 48, left, right);
5688 0 : NoChange = false;
5689 0 : M2Quads_SubQuad (quad);
5690 0 : (*p.proc) (des);
5691 0 : return false;
5692 : }
5693 : }
5694 : return true;
5695 : /* static analysis guarentees a RETURN statement will be used before here. */
5696 : __builtin_unreachable ();
5697 : }
5698 :
5699 :
5700 : /*
5701 : CheckElementSetTypes - returns TRUE if all expression checks pass.
5702 : If the expression check fails quad is removed,
5703 : the walk procedure (des) is called and NoChange is
5704 : set to FALSE.
5705 : */
5706 :
5707 2392 : static bool CheckElementSetTypes (unsigned int quad)
5708 : {
5709 2392 : unsigned int righttype;
5710 2392 : unsigned int ignore;
5711 2392 : unsigned int left;
5712 2392 : unsigned int right;
5713 2392 : bool constExpr;
5714 2392 : bool overflowChecking;
5715 2392 : unsigned int ignorepos;
5716 2392 : unsigned int leftpos;
5717 2392 : unsigned int rightpos;
5718 2392 : unsigned int operatorpos;
5719 2392 : unsigned int subexprpos;
5720 2392 : M2Quads_QuadOperator op;
5721 :
5722 2392 : M2Quads_GetQuadOtok (quad, &operatorpos, &op, &left, &right, &ignore, &overflowChecking, &constExpr, &leftpos, &rightpos, &ignorepos);
5723 2392 : subexprpos = M2LexBuf_MakeVirtualTok (operatorpos, leftpos, rightpos);
5724 2392 : righttype = SymbolTable_GetType (right);
5725 2392 : if (M2Options_StrictTypeChecking && (! (M2Check_ExpressionTypeCompatible (subexprpos, (const char *) "", 0, left, right, M2Options_StrictTypeChecking, true))))
5726 : {
5727 0 : M2MetaError_MetaErrorT2 (subexprpos, (const char *) "the types used in expression {%1Etad} {%kIN} {%2tad} are incompatible", 69, left, right);
5728 0 : NoChange = false;
5729 0 : M2Quads_SubQuad (quad);
5730 0 : return false;
5731 : }
5732 2392 : if ((righttype == SymbolTable_NulSym) || (! (SymbolTable_IsSet (SymbolTable_SkipType (righttype)))))
5733 : {
5734 12 : M2MetaError_MetaErrorT1 (rightpos, (const char *) "the right hand side of an {%kIN} expression is expecting {%1Ead} to be a {%kSET} type and not a {%1Etadv}", 105, right);
5735 12 : NoChange = false;
5736 12 : M2Quads_SubQuad (quad);
5737 12 : return false;
5738 : }
5739 : return true;
5740 : /* static analysis guarentees a RETURN statement will be used before here. */
5741 : __builtin_unreachable ();
5742 : }
5743 :
5744 :
5745 : /*
5746 : CodeBinarySet - encode a binary set AND arithmetic operation.
5747 : Set operands may be longer than a word.
5748 : */
5749 :
5750 1160 : static void CodeBinarySet (M2GenGCC_ProcedureCardinal constp, M2GenGCC_BinaryFunction binfunc, NameKey_Name wideprocname, unsigned int quad)
5751 : {
5752 1160 : M2Quads_QuadOperator op;
5753 1160 : unsigned int operatorpos;
5754 1160 : unsigned int combinedpos;
5755 1160 : unsigned int despos;
5756 1160 : unsigned int leftpos;
5757 1160 : unsigned int rightpos;
5758 1160 : unsigned int des;
5759 1160 : unsigned int left;
5760 1160 : unsigned int right;
5761 1160 : bool overflowChecking;
5762 1160 : bool typeChecking;
5763 1160 : bool constExpr;
5764 1160 : location_t location;
5765 1160 : unsigned int settype;
5766 :
5767 1160 : M2Quads_GetQuadOTypetok (quad, &operatorpos, &op, &des, &left, &right, &overflowChecking, &typeChecking, &constExpr, &despos, &leftpos, &rightpos);
5768 : /* Firstly ensure that constant literals are declared. */
5769 1160 : M2GCCDeclare_DeclareConstant (rightpos, right);
5770 1160 : M2GCCDeclare_DeclareConstant (leftpos, left);
5771 1160 : M2GCCDeclare_DeclareConstructor (rightpos, quad, right);
5772 1160 : M2GCCDeclare_DeclareConstructor (leftpos, quad, left);
5773 1160 : if (SymbolTable_IsConst (des))
5774 : {
5775 6 : combinedpos = M2LexBuf_MakeVirtual2Tok (leftpos, rightpos);
5776 6 : if ((SymbolTable_IsValueSolved (left)) && (SymbolTable_IsValueSolved (right)))
5777 : {
5778 6 : M2Debug_Assert ((M2Base_MixTypes (FindType (left), FindType (right), combinedpos)) != SymbolTable_NulSym);
5779 6 : SymbolTable_PutConst (des, FindType (right));
5780 6 : SymbolTable_PushValue (left);
5781 6 : SymbolTable_PushValue (right);
5782 6 : (*constp.proc) (combinedpos);
5783 6 : SymbolTable_PopValue (des);
5784 6 : SymbolTable_PutConstSet (des);
5785 : }
5786 : else
5787 : {
5788 0 : M2MetaError_MetaErrorT0 (combinedpos, (const char *) "{%E}constant expression cannot be evaluated", 43);
5789 : }
5790 : }
5791 : else
5792 : {
5793 1154 : checkDeclare (des);
5794 1154 : settype = SymbolTable_GetLType (des);
5795 1154 : M2Debug_Assert (SymbolTable_IsSet (settype));
5796 1154 : combinedpos = M2LexBuf_MakeVirtualTok (despos, leftpos, rightpos);
5797 1154 : if (SymbolTable_GetSetInWord (settype))
5798 : {
5799 980 : location = M2LexBuf_TokenToLocation (combinedpos);
5800 980 : SetNarrowBinary (location, binfunc, settype, des, left, right);
5801 : }
5802 : else
5803 : {
5804 174 : SetWideBinary (combinedpos, wideprocname, settype, des, left, right);
5805 : }
5806 : }
5807 1160 : }
5808 :
5809 :
5810 : /*
5811 : MakeTemporarySetName - returns a Name using the template _Tset%d.
5812 : */
5813 :
5814 3288 : static NameKey_Name MakeTemporarySetName (void)
5815 : {
5816 3288 : NameKey_Name name;
5817 3288 : DynamicStrings_String s;
5818 :
5819 3288 : SetTemporaryNo += 1;
5820 3288 : s = FormatStrings_Sprintf1 (DynamicStrings_Mark (DynamicStrings_InitString ((const char *) "_Tset%d", 7)), (const unsigned char *) &SetTemporaryNo, (sizeof (SetTemporaryNo)-1));
5821 3288 : name = NameKey_makekey (DynamicStrings_string (s));
5822 3288 : s = DynamicStrings_KillString (s);
5823 3288 : return name;
5824 : /* static analysis guarentees a RETURN statement will be used before here. */
5825 : __builtin_unreachable ();
5826 : }
5827 :
5828 :
5829 : /*
5830 : SetWideBinary -
5831 : */
5832 :
5833 174 : static void SetWideBinary (unsigned int tokenno, NameKey_Name wideprocname, unsigned int settype, unsigned int des, unsigned int left, unsigned int right)
5834 : {
5835 174 : if (M2Options_OptimizeSets)
5836 : {
5837 : /* avoid gcc warning by using compound statement even if not strictly necessary. */
5838 68 : if (wideprocname == (NameKey_MakeKey ((const char *) "And", 3)))
5839 : {
5840 4 : SetWideBinaryBuiltin (tokenno, (M2GenGCC_BinaryFunction) {(M2GenGCC_BinaryFunction_t) m2expr_BuildLogicalAnd}, des, left, right);
5841 4 : return;
5842 : }
5843 64 : else if (wideprocname == (NameKey_MakeKey ((const char *) "Or", 2)))
5844 : {
5845 : /* avoid dangling else. */
5846 56 : SetWideBinaryBuiltin (tokenno, (M2GenGCC_BinaryFunction) {(M2GenGCC_BinaryFunction_t) m2expr_BuildLogicalOr}, des, left, right);
5847 56 : return;
5848 : }
5849 : }
5850 114 : SetWideBinaryLibrary (tokenno, wideprocname, settype, des, left, right);
5851 : }
5852 :
5853 :
5854 : /*
5855 : SetWideBinaryLibrary - call wideprocname (des, left, right) passing des, left, right
5856 : as an array of byte.
5857 : */
5858 :
5859 114 : static void SetWideBinaryLibrary (unsigned int tokenno, NameKey_Name wideprocname, unsigned int settype, unsigned int des, unsigned int left, unsigned int right)
5860 : {
5861 114 : location_t location;
5862 114 : unsigned int procedure;
5863 114 : unsigned int param1;
5864 114 : unsigned int param2;
5865 114 : unsigned int param3;
5866 114 : tree highbit;
5867 114 : tree array1;
5868 114 : tree array2;
5869 114 : tree array3;
5870 114 : tree call;
5871 :
5872 114 : procedure = FromM2WIDESETImport (tokenno, wideprocname);
5873 114 : checkDeclare (procedure);
5874 114 : location = M2LexBuf_TokenToLocation (tokenno);
5875 114 : param1 = SymbolTable_GetNthParamAnyClosest (procedure, 1, SymbolTable_GetMainModule ());
5876 114 : param2 = SymbolTable_GetNthParamAnyClosest (procedure, 2, SymbolTable_GetMainModule ());
5877 114 : param3 = SymbolTable_GetNthParamAnyClosest (procedure, 3, SymbolTable_GetMainModule ());
5878 114 : array1 = CreateSetArrayParam (location, tokenno, des, param1);
5879 114 : array2 = CreateSetArrayParam (location, tokenno, left, param2);
5880 114 : array3 = CreateSetArrayParam (location, tokenno, right, param3);
5881 114 : highbit = m2convert_ToCardinal (location, CalcHighSetBit (location, settype));
5882 114 : m2statement_BuildParam (location, highbit); /* Parameter 4. */
5883 114 : m2statement_BuildParam (location, array3); /* Parameter 3. */
5884 114 : m2statement_BuildParam (location, array2); /* Parameter 2. */
5885 114 : m2statement_BuildParam (location, array1); /* Parameter 1. */
5886 114 : call = m2statement_BuildProcedureCallTree (location, SymbolConversion_Mod2Gcc (procedure), NULL); /* Parameter 1. */
5887 114 : m2statement_SetLastFunction (NULL);
5888 114 : m2type_AddStatement (location, call);
5889 114 : }
5890 :
5891 :
5892 : /*
5893 : SetWideBinaryBuiltin - build an builtin wideset NOT operation.
5894 : */
5895 :
5896 60 : static void SetWideBinaryBuiltin (unsigned int tokenno, M2GenGCC_BinaryFunction binfunc, unsigned int des, unsigned int left, unsigned int right)
5897 : {
5898 60 : location_t location;
5899 60 : tree byte;
5900 60 : tree lhs;
5901 60 : tree rhs;
5902 60 : tree dest;
5903 60 : tree index;
5904 60 : tree high;
5905 :
5906 60 : location = M2LexBuf_TokenToLocation (tokenno);
5907 60 : high = ResolveHigh (tokenno, 1, des);
5908 60 : index = m2expr_GetIntegerZero (location);
5909 60 : byte = SymbolConversion_Mod2Gcc (M2System_Byte);
5910 1512 : do {
5911 1512 : rhs = m2expr_BuildArray (location, byte, getrvalue (location, right, SymbolTable_GetType (right), (SymbolTable_GetMode (right)) == SymbolTable_LeftValue), index, m2expr_GetIntegerZero (location));
5912 1512 : lhs = m2expr_BuildArray (location, byte, getrvalue (location, left, SymbolTable_GetType (left), (SymbolTable_GetMode (left)) == SymbolTable_LeftValue), index, m2expr_GetIntegerZero (location));
5913 1512 : rhs = (*binfunc.proc) (location, lhs, rhs);
5914 1512 : rhs = m2convert_BuildConvert (location, byte, rhs, false);
5915 1512 : dest = m2expr_BuildArray (location, byte, getrvalue (location, des, SymbolTable_GetType (des), (SymbolTable_GetMode (des)) == SymbolTable_LeftValue), index, m2expr_GetIntegerZero (location));
5916 1512 : m2statement_BuildAssignmentStatement (location, dest, rhs);
5917 1512 : M2ALU_PushIntegerTree (index);
5918 1512 : M2ALU_PushCard (1);
5919 1512 : M2ALU_Addn ();
5920 1512 : index = M2ALU_PopIntegerTree ();
5921 1512 : } while (! ((m2expr_CompareTrees (index, high)) > 0));
5922 60 : }
5923 :
5924 :
5925 : /*
5926 : SetNarrowBinary - create tree consisting of:
5927 : result := binfunc (left, right)
5928 : result, left and right can be lvalues.
5929 : */
5930 :
5931 980 : static void SetNarrowBinary (location_t location, M2GenGCC_BinaryFunction binfunc, unsigned int settype, unsigned int result, unsigned int left, unsigned int right)
5932 : {
5933 980 : bool isResultL;
5934 980 : bool isLeftL;
5935 980 : bool isRightL;
5936 :
5937 980 : isResultL = (SymbolTable_GetMode (result)) == SymbolTable_LeftValue;
5938 980 : isLeftL = (SymbolTable_GetMode (left)) == SymbolTable_LeftValue;
5939 980 : isRightL = (SymbolTable_GetMode (right)) == SymbolTable_LeftValue;
5940 980 : m2statement_BuildAssignmentStatement (location, getrvalue (location, result, settype, isResultL), (tree) ((*binfunc.proc) (location, getrvalue (location, left, settype, isLeftL), getrvalue (location, right, settype, isRightL))));
5941 980 : }
5942 :
5943 :
5944 : /*
5945 : CreateSetArrayParam - return a gcc tree containing value contained in an unbounded
5946 : array parameter.
5947 : */
5948 :
5949 3288 : static tree CreateSetArrayParam (location_t location, unsigned int tokenno, unsigned int value, unsigned int param)
5950 : {
5951 3288 : tree dataAddress;
5952 3288 : tree designator;
5953 3288 : tree oarecord;
5954 3288 : unsigned int unbounded;
5955 3288 : unsigned int HighField;
5956 3288 : unsigned int scope;
5957 :
5958 3288 : unbounded = SymbolTable_GetType (param);
5959 3288 : M2Debug_Assert (SymbolTable_IsUnbounded (unbounded));
5960 3288 : scope = GetActiveScope ();
5961 : /* Declare oarecord which has a pointer and high field. This will be passed as
5962 : a parameter into the runtime set procedure and appear as an ARRAY OF BYTE. */
5963 3288 : oarecord = m2decl_DeclareKnownVariable (location, const_cast <const char * > (static_cast <char * > (NameKey_KeyToCharStar (MakeTemporarySetName ()))), SymbolConversion_Mod2Gcc (unbounded), false, false, true, SymbolTable_IsProcedure (scope), SymbolConversion_Mod2Gcc (scope), NULL);
5964 : /* Designator is oarecord.address. */
5965 3288 : designator = m2expr_BuildComponentRef (location, oarecord, SymbolConversion_Mod2Gcc (SymbolTable_GetUnboundedAddressOffset (unbounded)));
5966 3288 : if ((SymbolTable_GetMode (value)) == SymbolTable_LeftValue)
5967 : {
5968 : /* Already pointing to the data. */
5969 198 : dataAddress = SymbolConversion_Mod2Gcc (value);
5970 : }
5971 : else
5972 : {
5973 3090 : dataAddress = m2expr_BuildAddr (location, SymbolConversion_Mod2Gcc (value), false);
5974 : }
5975 3288 : m2statement_BuildAssignmentStatement (location, designator, dataAddress);
5976 3288 : HighField = SymbolTable_GetUnboundedHighOffset (unbounded, 1);
5977 3288 : designator = m2expr_BuildComponentRef (location, oarecord, SymbolConversion_Mod2Gcc (HighField));
5978 3288 : m2statement_BuildAssignmentStatement (location, designator, ResolveHigh (tokenno, 1, value));
5979 3288 : return oarecord;
5980 : /* static analysis guarentees a RETURN statement will be used before here. */
5981 : __builtin_unreachable ();
5982 : }
5983 :
5984 :
5985 : /*
5986 : CheckUnaryOperand - checks to see whether operand is using a generic type.
5987 : */
5988 :
5989 918 : static bool CheckUnaryOperand (unsigned int quad, unsigned int operand)
5990 : {
5991 918 : unsigned int type;
5992 918 : DynamicStrings_String s;
5993 918 : DynamicStrings_String op;
5994 :
5995 918 : type = SymbolTable_SkipType (SymbolTable_GetType (operand));
5996 918 : if ((((M2System_Word == type) || (M2System_IsWordN (type))) || (M2System_Byte == type)) || (M2System_Loc == type))
5997 : {
5998 6 : op = M2Quads_GetM2OperatorDesc (M2Quads_GetQuadOp (quad));
5999 6 : s = DynamicStrings_InitString ((const char *) "operand of type {%1Ets} is not allowed in an unary expression", 61);
6000 6 : if (op != NULL)
6001 : {
6002 6 : s = DynamicStrings_ConCatChar (s, ' ');
6003 6 : s = DynamicStrings_ConCat (s, DynamicStrings_Mark (op));
6004 : }
6005 6 : M2MetaError_MetaErrorStringT1 (CurrentQuadToken, s, operand);
6006 6 : return false;
6007 : }
6008 : return true;
6009 : /* static analysis guarentees a RETURN statement will be used before here. */
6010 : __builtin_unreachable ();
6011 : }
6012 :
6013 :
6014 : /*
6015 : UnaryOperand - returns TRUE if operand is acceptable for
6016 : unary operator: + -. If FALSE
6017 : is returned, an error message will be generated
6018 : and the quad is deleted.
6019 : */
6020 :
6021 918 : static bool UnaryOperand (unsigned int quad, unsigned int operand)
6022 : {
6023 918 : if (! (CheckUnaryOperand (quad, operand)))
6024 : {
6025 6 : M2Quads_SubQuad (quad); /* We do not want multiple copies of the same error. */
6026 6 : return false; /* We do not want multiple copies of the same error. */
6027 : }
6028 : return true;
6029 : /* static analysis guarentees a RETURN statement will be used before here. */
6030 : __builtin_unreachable ();
6031 : }
6032 :
6033 :
6034 : /*
6035 : CheckBinaryOperand - checks to see whether operand is using a generic type.
6036 : */
6037 :
6038 1567100 : static bool CheckBinaryOperand (unsigned int quad, bool isleft, unsigned int operand, bool result)
6039 : {
6040 1567100 : unsigned int type;
6041 1567100 : M2Quads_QuadOperator qop;
6042 1567100 : unsigned int op1;
6043 1567100 : unsigned int op2;
6044 1567100 : unsigned int op3;
6045 1567100 : unsigned int op1pos;
6046 1567100 : unsigned int op2pos;
6047 1567100 : unsigned int op3pos;
6048 1567100 : DynamicStrings_String s;
6049 1567100 : DynamicStrings_String op;
6050 :
6051 1567100 : type = SymbolTable_SkipType (SymbolTable_GetType (operand));
6052 1567100 : if ((((M2System_Word == type) || (M2System_IsWordN (type))) || (M2System_Byte == type)) || (M2System_Loc == type))
6053 : {
6054 18 : M2Quads_GetQuadtok (quad, &qop, &op1, &op2, &op3, &op1pos, &op2pos, &op3pos);
6055 18 : op = M2Quads_GetM2OperatorDesc (M2Quads_GetQuadOp (quad));
6056 18 : if (isleft)
6057 : {
6058 6 : s = DynamicStrings_InitString ((const char *) "left operand {%1Ea} of type {%1Ets} is not allowed in binary expression", 71);
6059 : }
6060 : else
6061 : {
6062 12 : s = DynamicStrings_InitString ((const char *) "right operand {%1Ea} of type {%1Ets} is not allowed in binary expression", 72);
6063 : }
6064 18 : if (op != NULL)
6065 : {
6066 18 : s = DynamicStrings_ConCatChar (s, ' ');
6067 18 : s = DynamicStrings_ConCat (s, DynamicStrings_Mark (op));
6068 : }
6069 18 : M2MetaError_MetaErrorStringT1 (op1pos, s, operand);
6070 18 : return false;
6071 : }
6072 : return result;
6073 : /* static analysis guarentees a RETURN statement will be used before here. */
6074 : __builtin_unreachable ();
6075 : }
6076 :
6077 :
6078 : /*
6079 : BinaryOperands - returns TRUE if, l, and, r, are acceptable for
6080 : binary operator: + - / * and friends. If FALSE
6081 : is returned, an error message will be generated
6082 : and the, quad, is deleted.
6083 : */
6084 :
6085 783550 : static bool BinaryOperands (unsigned int quad, unsigned int l, unsigned int r)
6086 : {
6087 783550 : bool result;
6088 :
6089 783550 : result = CheckBinaryOperand (quad, true, l, true);
6090 783550 : result = CheckBinaryOperand (quad, false, r, result);
6091 783550 : if (! result)
6092 : {
6093 12 : M2Quads_SubQuad (quad); /* We do not want multiple copies of the same error. */
6094 : }
6095 783550 : return result;
6096 : /* static analysis guarentees a RETURN statement will be used before here. */
6097 : __builtin_unreachable ();
6098 : }
6099 :
6100 :
6101 : /*
6102 : IsConstStr - returns TRUE if sym is a constant string or a char constant.
6103 : */
6104 :
6105 441084 : static bool IsConstStr (unsigned int sym)
6106 : {
6107 441084 : return (SymbolTable_IsConstString (sym)) || ((SymbolTable_IsConst (sym)) && ((SymbolTable_GetSType (sym)) == M2Base_Char));
6108 : /* static analysis guarentees a RETURN statement will be used before here. */
6109 : __builtin_unreachable ();
6110 : }
6111 :
6112 :
6113 : /*
6114 : IsConstStrKnown - returns TRUE if sym is a constant string or a char constant
6115 : which is known.
6116 : */
6117 :
6118 44660 : static bool IsConstStrKnown (unsigned int sym)
6119 : {
6120 44660 : return ((SymbolTable_IsConstString (sym)) && (SymbolTable_IsConstStringKnown (sym))) || ((SymbolTable_IsConst (sym)) && ((SymbolTable_GetSType (sym)) == M2Base_Char));
6121 : /* static analysis guarentees a RETURN statement will be used before here. */
6122 : __builtin_unreachable ();
6123 : }
6124 :
6125 :
6126 : /*
6127 : GetStr - return a string containing a constant string value associated with sym.
6128 : A nul char constant will return an empty string.
6129 : */
6130 :
6131 44492 : static DynamicStrings_String GetStr (unsigned int tokenno, unsigned int sym)
6132 : {
6133 44492 : char ch;
6134 :
6135 44492 : M2Debug_Assert (SymbolTable_IsConst (sym));
6136 44492 : if (SymbolTable_IsConstString (sym))
6137 : {
6138 44468 : return DynamicStrings_InitStringCharStar (NameKey_KeyToCharStar (SymbolTable_GetString (sym)));
6139 : }
6140 : else
6141 : {
6142 24 : M2Debug_Assert ((SymbolTable_GetSType (sym)) == M2Base_Char);
6143 24 : SymbolTable_PushValue (sym);
6144 24 : ch = M2ALU_PopChar (tokenno);
6145 24 : return DynamicStrings_InitStringChar (ch);
6146 : }
6147 : /* static analysis guarentees a RETURN statement will be used before here. */
6148 : __builtin_unreachable ();
6149 : }
6150 :
6151 :
6152 : /*
6153 : FoldAdd - check addition for constant folding. It checks for conststrings
6154 : overloading the +.
6155 : */
6156 :
6157 396940 : static void FoldAdd (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3)
6158 : {
6159 396940 : DynamicStrings_String s;
6160 :
6161 396940 : if ((IsConstStr (op2)) && (IsConstStr (op3)))
6162 : {
6163 : /* avoid dangling else. */
6164 540 : if ((IsConstStrKnown (op2)) && (IsConstStrKnown (op3)))
6165 : {
6166 : /* Handle special addition for constant strings. */
6167 492 : s = DynamicStrings_Dup (GetStr (tokenno, op2));
6168 492 : s = DynamicStrings_ConCat (s, GetStr (tokenno, op3));
6169 492 : SymbolTable_PutConstStringKnown (tokenno, op1, NameKey_makekey (DynamicStrings_string (s)), false, true);
6170 492 : M2GCCDeclare_TryDeclareConstant (tokenno, op1);
6171 492 : (*p.proc) (op1);
6172 492 : NoChange = false;
6173 492 : M2Quads_SubQuad (quad);
6174 492 : s = DynamicStrings_KillString (s);
6175 : }
6176 : }
6177 : else
6178 : {
6179 396400 : FoldArithAdd (tokenno, p, quad, op1, op2, op3);
6180 : }
6181 396928 : }
6182 :
6183 :
6184 : /*
6185 : FoldArithAdd - check arithmetic addition for constant folding.
6186 : */
6187 :
6188 396400 : static void FoldArithAdd (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3)
6189 : {
6190 396400 : if (BinaryOperands (quad, op2, op3))
6191 : {
6192 396388 : FoldBinary (tokenno, p, (m2expr_BuildBinProcedure) {(m2expr_BuildBinProcedure_t) m2expr_BuildAdd}, quad, op1, op2, op3);
6193 : }
6194 396388 : }
6195 :
6196 :
6197 : /*
6198 : CodeAddChecked - code an addition instruction, determine whether checking
6199 : is required.
6200 : */
6201 :
6202 34062 : static void CodeAddChecked (unsigned int quad, unsigned int left, unsigned int right)
6203 : {
6204 34062 : if (M2Quads_MustCheckOverflow (quad))
6205 : {
6206 22902 : CodeAddCheck (quad, left, right);
6207 : }
6208 : else
6209 : {
6210 11160 : CodeAdd (quad, left, right);
6211 : }
6212 34062 : }
6213 :
6214 :
6215 : /*
6216 : CodeAddCheck - encode addition but check for overflow.
6217 : */
6218 :
6219 22902 : static void CodeAddCheck (unsigned int quad, unsigned int left, unsigned int right)
6220 : {
6221 22902 : if (BinaryOperands (quad, left, right))
6222 : {
6223 22902 : CodeBinaryCheck ((m2expr_BuildBinCheckProcedure) {(m2expr_BuildBinCheckProcedure_t) m2expr_BuildAddCheck}, quad);
6224 : }
6225 22902 : }
6226 :
6227 :
6228 : /*
6229 : CodeAdd - encode addition.
6230 : */
6231 :
6232 11160 : static void CodeAdd (unsigned int quad, unsigned int left, unsigned int right)
6233 : {
6234 11160 : if (BinaryOperands (quad, left, right))
6235 : {
6236 11160 : CodeBinary ((m2expr_BuildBinProcedure) {(m2expr_BuildBinProcedure_t) m2expr_BuildAdd}, quad);
6237 : }
6238 11160 : }
6239 :
6240 :
6241 : /*
6242 : FoldSub - check subtraction for constant folding.
6243 : */
6244 :
6245 164904 : static void FoldSub (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3)
6246 : {
6247 164904 : if (BinaryOperands (quad, op2, op3))
6248 : {
6249 164904 : FoldBinary (tokenno, p, (m2expr_BuildBinProcedure) {(m2expr_BuildBinProcedure_t) m2expr_BuildSub}, quad, op1, op2, op3);
6250 : }
6251 164904 : }
6252 :
6253 :
6254 : /*
6255 : CodeSubChecked - code a subtract instruction, determine whether checking
6256 : is required.
6257 : */
6258 :
6259 10318 : static void CodeSubChecked (unsigned int quad, unsigned int left, unsigned int right)
6260 : {
6261 10318 : if (M2Quads_MustCheckOverflow (quad))
6262 : {
6263 10318 : CodeSubCheck (quad, left, right);
6264 : }
6265 : else
6266 : {
6267 0 : CodeSub (quad, left, right);
6268 : }
6269 10318 : }
6270 :
6271 :
6272 : /*
6273 : CodeSubCheck - encode subtraction but check for overflow.
6274 : */
6275 :
6276 10318 : static void CodeSubCheck (unsigned int quad, unsigned int left, unsigned int right)
6277 : {
6278 10318 : if (BinaryOperands (quad, left, right))
6279 : {
6280 10318 : CodeBinaryCheck ((m2expr_BuildBinCheckProcedure) {(m2expr_BuildBinCheckProcedure_t) m2expr_BuildSubCheck}, quad);
6281 : }
6282 10318 : }
6283 :
6284 :
6285 : /*
6286 : CodeSub - encode subtraction.
6287 : */
6288 :
6289 0 : static void CodeSub (unsigned int quad, unsigned int left, unsigned int right)
6290 : {
6291 0 : if (BinaryOperands (quad, left, right))
6292 : {
6293 0 : CodeBinary ((m2expr_BuildBinProcedure) {(m2expr_BuildBinProcedure_t) m2expr_BuildSub}, quad);
6294 : }
6295 0 : }
6296 :
6297 :
6298 : /*
6299 : FoldMult - check multiplication for constant folding.
6300 : */
6301 :
6302 109726 : static void FoldMult (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3)
6303 : {
6304 109726 : if (BinaryOperands (quad, op2, op3))
6305 : {
6306 109726 : FoldBinary (tokenno, p, (m2expr_BuildBinProcedure) {(m2expr_BuildBinProcedure_t) m2expr_BuildMult}, quad, op1, op2, op3);
6307 : }
6308 109726 : }
6309 :
6310 :
6311 : /*
6312 : CodeMultChecked - code a multiplication instruction, determine whether checking
6313 : is required.
6314 : */
6315 :
6316 11456 : static void CodeMultChecked (unsigned int quad, unsigned int left, unsigned int right)
6317 : {
6318 11456 : if (M2Quads_MustCheckOverflow (quad))
6319 : {
6320 11456 : CodeMultCheck (quad, left, right);
6321 : }
6322 : else
6323 : {
6324 0 : CodeMult (quad, left, right);
6325 : }
6326 11456 : }
6327 :
6328 :
6329 : /*
6330 : CodeMultCheck - encode multiplication but check for overflow.
6331 : */
6332 :
6333 11456 : static void CodeMultCheck (unsigned int quad, unsigned int left, unsigned int right)
6334 : {
6335 11456 : if (BinaryOperands (quad, left, right))
6336 : {
6337 11456 : CodeBinaryCheck ((m2expr_BuildBinCheckProcedure) {(m2expr_BuildBinCheckProcedure_t) m2expr_BuildMultCheck}, quad);
6338 : }
6339 11456 : }
6340 :
6341 :
6342 : /*
6343 : CodeMult - encode multiplication.
6344 : */
6345 :
6346 0 : static void CodeMult (unsigned int quad, unsigned int left, unsigned int right)
6347 : {
6348 0 : if (BinaryOperands (quad, left, right))
6349 : {
6350 0 : CodeBinary ((m2expr_BuildBinProcedure) {(m2expr_BuildBinProcedure_t) m2expr_BuildMult}, quad);
6351 : }
6352 0 : }
6353 :
6354 :
6355 : /*
6356 : CodeDivM2Checked - code a divide instruction, determine whether checking
6357 : is required.
6358 : */
6359 :
6360 1940 : static void CodeDivM2Checked (unsigned int quad, unsigned int left, unsigned int right)
6361 : {
6362 1940 : if (M2Quads_MustCheckOverflow (quad))
6363 : {
6364 1940 : CodeDivM2Check (quad, left, right);
6365 : }
6366 : else
6367 : {
6368 0 : CodeDivM2 (quad, left, right);
6369 : }
6370 1940 : }
6371 :
6372 :
6373 : /*
6374 : CodeDivM2Check - encode addition but check for overflow.
6375 : */
6376 :
6377 1940 : static void CodeDivM2Check (unsigned int quad, unsigned int left, unsigned int right)
6378 : {
6379 1940 : if (BinaryOperands (quad, left, right))
6380 : {
6381 1940 : CodeBinaryCheck ((m2expr_BuildBinCheckProcedure) {(m2expr_BuildBinCheckProcedure_t) m2expr_BuildDivM2Check}, quad);
6382 : }
6383 1940 : }
6384 :
6385 :
6386 : /*
6387 : CodeModM2Checked - code a modulus instruction, determine whether checking
6388 : is required.
6389 : */
6390 :
6391 2088 : static void CodeModM2Checked (unsigned int quad, unsigned int left, unsigned int right)
6392 : {
6393 2088 : if (M2Quads_MustCheckOverflow (quad))
6394 : {
6395 2088 : CodeModM2Check (quad, left, right);
6396 : }
6397 : else
6398 : {
6399 0 : CodeModM2 (quad, left, right);
6400 : }
6401 2088 : }
6402 :
6403 :
6404 : /*
6405 : CodeModM2Check - encode addition but check for overflow.
6406 : */
6407 :
6408 2088 : static void CodeModM2Check (unsigned int quad, unsigned int left, unsigned int right)
6409 : {
6410 2088 : if (BinaryOperands (quad, left, right))
6411 : {
6412 2088 : CodeBinaryCheck ((m2expr_BuildBinCheckProcedure) {(m2expr_BuildBinCheckProcedure_t) m2expr_BuildModM2Check}, quad);
6413 : }
6414 2088 : }
6415 :
6416 :
6417 : /*
6418 : BinaryOperandRealFamily -
6419 : */
6420 :
6421 47122 : static bool BinaryOperandRealFamily (unsigned int op)
6422 : {
6423 47122 : unsigned int type;
6424 :
6425 47122 : type = SymbolTable_GetDType (op);
6426 47122 : return (((M2Base_IsComplexType (type)) || (M2System_IsComplexN (type))) || (M2Base_IsRealType (type))) || (M2System_IsRealN (type));
6427 : /* static analysis guarentees a RETURN statement will be used before here. */
6428 : __builtin_unreachable ();
6429 : }
6430 :
6431 :
6432 : /*
6433 : FoldDivM2 - check division for constant folding.
6434 : */
6435 :
6436 14784 : static void FoldDivM2 (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3)
6437 : {
6438 14784 : if (BinaryOperands (quad, op2, op3))
6439 : {
6440 : /* avoid gcc warning by using compound statement even if not strictly necessary. */
6441 14784 : if ((BinaryOperandRealFamily (op2)) || (BinaryOperandRealFamily (op3)))
6442 : {
6443 0 : FoldBinary (tokenno, p, (m2expr_BuildBinProcedure) {(m2expr_BuildBinProcedure_t) m2expr_BuildRDiv}, quad, op1, op2, op3);
6444 : }
6445 : else
6446 : {
6447 14784 : FoldBinary (tokenno, p, (m2expr_BuildBinProcedure) {(m2expr_BuildBinProcedure_t) m2expr_BuildDivM2}, quad, op1, op2, op3);
6448 : }
6449 : }
6450 14784 : }
6451 :
6452 :
6453 : /*
6454 : CodeDivM2 - encode division.
6455 : */
6456 :
6457 0 : static void CodeDivM2 (unsigned int quad, unsigned int left, unsigned int right)
6458 : {
6459 0 : if (BinaryOperands (quad, left, right))
6460 : {
6461 : /* avoid gcc warning by using compound statement even if not strictly necessary. */
6462 0 : if ((BinaryOperandRealFamily (left)) || (BinaryOperandRealFamily (right)))
6463 : {
6464 0 : CodeBinary ((m2expr_BuildBinProcedure) {(m2expr_BuildBinProcedure_t) m2expr_BuildRDiv}, quad);
6465 : }
6466 : else
6467 : {
6468 0 : CodeBinary ((m2expr_BuildBinProcedure) {(m2expr_BuildBinProcedure_t) m2expr_BuildDivM2}, quad);
6469 : }
6470 : }
6471 0 : }
6472 :
6473 :
6474 : /*
6475 : FoldModM2 - check modulus for constant folding.
6476 : */
6477 :
6478 25942 : static void FoldModM2 (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3)
6479 : {
6480 25942 : if (BinaryOperands (quad, op2, op3))
6481 : {
6482 25942 : FoldBinary (tokenno, p, (m2expr_BuildBinProcedure) {(m2expr_BuildBinProcedure_t) m2expr_BuildModM2}, quad, op1, op2, op3);
6483 : }
6484 25942 : }
6485 :
6486 :
6487 : /*
6488 : CodeModM2 - encode modulus.
6489 : */
6490 :
6491 0 : static void CodeModM2 (unsigned int quad, unsigned int left, unsigned int right)
6492 : {
6493 0 : if (BinaryOperands (quad, left, right))
6494 : {
6495 0 : CodeBinary ((m2expr_BuildBinProcedure) {(m2expr_BuildBinProcedure_t) m2expr_BuildModM2}, quad);
6496 : }
6497 0 : }
6498 :
6499 :
6500 : /*
6501 : FoldDivTrunc - check division for constant folding.
6502 : */
6503 :
6504 11100 : static void FoldDivTrunc (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3)
6505 : {
6506 11100 : if (BinaryOperands (quad, op2, op3))
6507 : {
6508 : /* avoid gcc warning by using compound statement even if not strictly necessary. */
6509 11100 : if ((BinaryOperandRealFamily (op2)) || (BinaryOperandRealFamily (op3)))
6510 : {
6511 5954 : FoldBinary (tokenno, p, (m2expr_BuildBinProcedure) {(m2expr_BuildBinProcedure_t) m2expr_BuildRDiv}, quad, op1, op2, op3);
6512 : }
6513 : else
6514 : {
6515 5146 : FoldBinary (tokenno, p, (m2expr_BuildBinProcedure) {(m2expr_BuildBinProcedure_t) m2expr_BuildDivTrunc}, quad, op1, op2, op3);
6516 : }
6517 : }
6518 11100 : }
6519 :
6520 :
6521 : /*
6522 : CodeDivTrunc - encode multiplication.
6523 : */
6524 :
6525 734 : static void CodeDivTrunc (unsigned int quad, unsigned int left, unsigned int right)
6526 : {
6527 734 : if (BinaryOperands (quad, left, right))
6528 : {
6529 : /* avoid gcc warning by using compound statement even if not strictly necessary. */
6530 734 : if ((BinaryOperandRealFamily (left)) || (BinaryOperandRealFamily (right)))
6531 : {
6532 160 : CodeBinary ((m2expr_BuildBinProcedure) {(m2expr_BuildBinProcedure_t) m2expr_BuildRDiv}, quad);
6533 : }
6534 : else
6535 : {
6536 574 : CodeBinary ((m2expr_BuildBinProcedure) {(m2expr_BuildBinProcedure_t) m2expr_BuildDivTrunc}, quad);
6537 : }
6538 : }
6539 734 : }
6540 :
6541 :
6542 : /*
6543 : FoldModTrunc - check modulus for constant folding.
6544 : */
6545 :
6546 96 : static void FoldModTrunc (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3)
6547 : {
6548 96 : if (BinaryOperands (quad, op2, op3))
6549 : {
6550 96 : FoldBinary (tokenno, p, (m2expr_BuildBinProcedure) {(m2expr_BuildBinProcedure_t) m2expr_BuildModTrunc}, quad, op1, op2, op3);
6551 : }
6552 96 : }
6553 :
6554 :
6555 : /*
6556 : CodeModTrunc - encode modulus.
6557 : */
6558 :
6559 0 : static void CodeModTrunc (unsigned int quad, unsigned int left, unsigned int right)
6560 : {
6561 0 : if (BinaryOperands (quad, left, right))
6562 : {
6563 0 : CodeBinary ((m2expr_BuildBinProcedure) {(m2expr_BuildBinProcedure_t) m2expr_BuildModTrunc}, quad);
6564 : }
6565 0 : }
6566 :
6567 :
6568 : /*
6569 : FoldDivCeil - check division for constant folding.
6570 : */
6571 :
6572 0 : static void FoldDivCeil (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3)
6573 : {
6574 0 : if (BinaryOperands (quad, op2, op3))
6575 : {
6576 : /* avoid gcc warning by using compound statement even if not strictly necessary. */
6577 0 : if ((BinaryOperandRealFamily (op2)) || (BinaryOperandRealFamily (op3)))
6578 : {
6579 0 : FoldBinary (tokenno, p, (m2expr_BuildBinProcedure) {(m2expr_BuildBinProcedure_t) m2expr_BuildRDiv}, quad, op1, op2, op3);
6580 : }
6581 : else
6582 : {
6583 0 : FoldBinary (tokenno, p, (m2expr_BuildBinProcedure) {(m2expr_BuildBinProcedure_t) m2expr_BuildDivCeil}, quad, op1, op2, op3);
6584 : }
6585 : }
6586 0 : }
6587 :
6588 :
6589 : /*
6590 : CodeDivCeil - encode multiplication.
6591 : */
6592 :
6593 0 : static void CodeDivCeil (unsigned int quad, unsigned int left, unsigned int right)
6594 : {
6595 0 : if (BinaryOperands (quad, left, right))
6596 : {
6597 : /* avoid gcc warning by using compound statement even if not strictly necessary. */
6598 0 : if ((BinaryOperandRealFamily (left)) || (BinaryOperandRealFamily (right)))
6599 : {
6600 0 : CodeBinary ((m2expr_BuildBinProcedure) {(m2expr_BuildBinProcedure_t) m2expr_BuildRDiv}, quad);
6601 : }
6602 : else
6603 : {
6604 0 : CodeBinary ((m2expr_BuildBinProcedure) {(m2expr_BuildBinProcedure_t) m2expr_BuildDivCeil}, quad);
6605 : }
6606 : }
6607 0 : }
6608 :
6609 :
6610 : /*
6611 : FoldModCeil - check modulus for constant folding.
6612 : */
6613 :
6614 0 : static void FoldModCeil (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3)
6615 : {
6616 0 : if (BinaryOperands (quad, op2, op3))
6617 : {
6618 0 : FoldBinary (tokenno, p, (m2expr_BuildBinProcedure) {(m2expr_BuildBinProcedure_t) m2expr_BuildModCeil}, quad, op1, op2, op3);
6619 : }
6620 0 : }
6621 :
6622 :
6623 : /*
6624 : CodeModCeil - encode multiplication.
6625 : */
6626 :
6627 0 : static void CodeModCeil (unsigned int quad, unsigned int left, unsigned int right)
6628 : {
6629 0 : if (BinaryOperands (quad, left, right))
6630 : {
6631 0 : CodeBinary ((m2expr_BuildBinProcedure) {(m2expr_BuildBinProcedure_t) m2expr_BuildModCeil}, quad);
6632 : }
6633 0 : }
6634 :
6635 :
6636 : /*
6637 : FoldDivFloor - check division for constant folding.
6638 : */
6639 :
6640 0 : static void FoldDivFloor (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3)
6641 : {
6642 0 : if (BinaryOperands (quad, op2, op3))
6643 : {
6644 : /* avoid gcc warning by using compound statement even if not strictly necessary. */
6645 0 : if ((BinaryOperandRealFamily (op2)) || (BinaryOperandRealFamily (op3)))
6646 : {
6647 0 : FoldBinary (tokenno, p, (m2expr_BuildBinProcedure) {(m2expr_BuildBinProcedure_t) m2expr_BuildRDiv}, quad, op1, op2, op3);
6648 : }
6649 : else
6650 : {
6651 0 : FoldBinary (tokenno, p, (m2expr_BuildBinProcedure) {(m2expr_BuildBinProcedure_t) m2expr_BuildDivFloor}, quad, op1, op2, op3);
6652 : }
6653 : }
6654 0 : }
6655 :
6656 :
6657 : /*
6658 : CodeDivFloor - encode multiplication.
6659 : */
6660 :
6661 0 : static void CodeDivFloor (unsigned int quad, unsigned int left, unsigned int right)
6662 : {
6663 0 : if (BinaryOperands (quad, left, right))
6664 : {
6665 : /* avoid gcc warning by using compound statement even if not strictly necessary. */
6666 0 : if ((BinaryOperandRealFamily (left)) || (BinaryOperandRealFamily (right)))
6667 : {
6668 0 : CodeBinary ((m2expr_BuildBinProcedure) {(m2expr_BuildBinProcedure_t) m2expr_BuildRDiv}, quad);
6669 : }
6670 : else
6671 : {
6672 0 : CodeBinary ((m2expr_BuildBinProcedure) {(m2expr_BuildBinProcedure_t) m2expr_BuildDivFloor}, quad);
6673 : }
6674 : }
6675 0 : }
6676 :
6677 :
6678 : /*
6679 : FoldModFloor - check modulus for constant folding.
6680 : */
6681 :
6682 0 : static void FoldModFloor (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3)
6683 : {
6684 0 : if (BinaryOperands (quad, op2, op3))
6685 : {
6686 0 : FoldBinary (tokenno, p, (m2expr_BuildBinProcedure) {(m2expr_BuildBinProcedure_t) m2expr_BuildModFloor}, quad, op1, op2, op3);
6687 : }
6688 0 : }
6689 :
6690 :
6691 : /*
6692 : CodeModFloor - encode modulus.
6693 : */
6694 :
6695 0 : static void CodeModFloor (unsigned int quad, unsigned int left, unsigned int right)
6696 : {
6697 0 : if (BinaryOperands (quad, left, right))
6698 : {
6699 0 : CodeBinary ((m2expr_BuildBinProcedure) {(m2expr_BuildBinProcedure_t) m2expr_BuildModFloor}, quad);
6700 : }
6701 0 : }
6702 :
6703 :
6704 : /*
6705 : FoldBuiltinConst -
6706 : */
6707 :
6708 27520 : static void FoldBuiltinConst (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int result, unsigned int constDesc)
6709 : {
6710 27520 : tree value;
6711 :
6712 27520 : value = m2builtins_GetBuiltinConst (reinterpret_cast <char * > (NameKey_KeyToCharStar ((NameKey_Name) (constDesc))));
6713 27520 : if (value == NULL)
6714 : {
6715 0 : M2MetaError_MetaErrorT1 (tokenno, (const char *) "unknown built in constant {%1Ead}", 33, constDesc);
6716 : }
6717 : else
6718 : {
6719 27520 : SymbolConversion_AddModGcc (result, value);
6720 27520 : (*p.proc) (result);
6721 27520 : NoChange = false;
6722 27520 : M2Quads_SubQuad (quad);
6723 : }
6724 27520 : }
6725 :
6726 :
6727 : /*
6728 : FoldBuiltinTypeInfo - attempts to fold a builtin attribute value on type op2.
6729 : */
6730 :
6731 360 : static void FoldBuiltinTypeInfo (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3)
6732 : {
6733 360 : tree t;
6734 360 : location_t location;
6735 :
6736 360 : if ((SymbolConversion_GccKnowsAbout (op2)) && (M2GCCDeclare_CompletelyResolved (op2)))
6737 : {
6738 360 : location = M2LexBuf_TokenToLocation (tokenno);
6739 360 : t = m2builtins_GetBuiltinTypeInfo (location, SymbolConversion_Mod2Gcc (op2), const_cast <const char * > (static_cast <char * > (NameKey_KeyToCharStar ((NameKey_Name) (op3)))));
6740 360 : if (t == NULL)
6741 : {
6742 0 : M2MetaError_MetaErrorT2 (tokenno, (const char *) "unknown built in constant {%1Ead} attribute for type {%2ad}", 59, op3, op2);
6743 : }
6744 : else
6745 : {
6746 360 : SymbolConversion_AddModGcc (op1, t);
6747 360 : (*p.proc) (op1);
6748 360 : NoChange = false;
6749 360 : M2Quads_SubQuad (quad);
6750 : }
6751 : }
6752 360 : }
6753 :
6754 :
6755 : /*
6756 : FoldTBitsize - attempt to fold the standard function SYSTEM.TBITSIZE
6757 : quadruple. If the quadruple is folded it is removed.
6758 : */
6759 :
6760 6388 : static void FoldTBitsize (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int res, unsigned int type)
6761 : {
6762 6388 : location_t location;
6763 :
6764 6388 : location = M2LexBuf_TokenToLocation (tokenno);
6765 6388 : if (((SymbolTable_IsType (type)) || (SymbolTable_IsVar (type))) || (SymbolTable_IsConst (type)))
6766 : {
6767 6248 : if ((SymbolTable_GetDType (type)) == SymbolTable_NulSym)
6768 : {
6769 0 : M2MetaError_MetaErrorT1 (tokenno, (const char *) "unknown type in TBITSIZE parameter {%1Ead}", 42, type);
6770 0 : NoChange = false;
6771 0 : M2Quads_SubQuad (quad);
6772 : }
6773 6248 : type = SymbolTable_GetDType (type);
6774 : }
6775 6388 : if (type != SymbolTable_NulSym)
6776 : {
6777 6388 : M2GCCDeclare_TryDeclareType (type);
6778 6388 : if (M2GCCDeclare_CompletelyResolved (type))
6779 : {
6780 6376 : SymbolConversion_AddModGcc (res, m2expr_BuildSystemTBitSize (location, SymbolConversion_Mod2Gcc (type)));
6781 6376 : (*p.proc) (res);
6782 6376 : NoChange = false;
6783 6376 : M2Quads_SubQuad (quad);
6784 : }
6785 : }
6786 6388 : }
6787 :
6788 :
6789 : /*
6790 : FoldStandardFunction - attempts to fold a standard function.
6791 : */
6792 :
6793 9444 : static void FoldStandardFunction (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3)
6794 : {
6795 9444 : DynamicStrings_String s;
6796 9444 : unsigned int type;
6797 9444 : unsigned int d;
6798 9444 : unsigned int result;
6799 9444 : location_t location;
6800 :
6801 9444 : location = M2LexBuf_TokenToLocation (tokenno);
6802 9444 : if ((SymbolTable_GetSymName (op2)) == (NameKey_MakeKey ((const char *) "Length", 6)))
6803 : {
6804 : /* avoid dangling else. */
6805 0 : M2GCCDeclare_TryDeclareConstant (tokenno, op3);
6806 0 : if ((SymbolTable_IsConst (op3)) && (SymbolConversion_GccKnowsAbout (op3)))
6807 : {
6808 : /* avoid gcc warning by using compound statement even if not strictly necessary. */
6809 : /* fine, we can take advantage of this and fold constants */
6810 0 : if (SymbolTable_IsConst (op1))
6811 : {
6812 0 : if (SymbolTable_IsConstString (op3))
6813 : {
6814 0 : SymbolConversion_AddModGcc (op1, FindSize (tokenno, op3));
6815 0 : (*p.proc) (op1);
6816 0 : NoChange = false;
6817 0 : M2Quads_SubQuad (quad);
6818 : }
6819 : else
6820 : {
6821 0 : M2MetaError_MetaErrorT1 (tokenno, (const char *) "parameter to LENGTH must be a string {%1Ead}", 44, op3);
6822 : }
6823 : }
6824 : else
6825 : {
6826 : /* rewrite the quad to use becomes. */
6827 0 : d = SymbolTable_GetStringLength (tokenno, op3);
6828 0 : s = FormatStrings_Sprintf1 (DynamicStrings_Mark (DynamicStrings_InitString ((const char *) "%d", 2)), (const unsigned char *) &d, (sizeof (d)-1));
6829 0 : result = SymbolTable_MakeConstLit (tokenno, NameKey_makekey (DynamicStrings_string (s)), M2Base_Cardinal);
6830 0 : s = DynamicStrings_KillString (s);
6831 0 : M2GCCDeclare_TryDeclareConstant (tokenno, result);
6832 0 : M2Quads_PutQuad (quad, M2Quads_BecomesOp, op1, SymbolTable_NulSym, result);
6833 : }
6834 : }
6835 : }
6836 9444 : else if ((SymbolTable_GetSymName (op2)) == (NameKey_MakeKey ((const char *) "CAP", 3)))
6837 : {
6838 : /* avoid dangling else. */
6839 766 : M2GCCDeclare_TryDeclareConstant (tokenno, op3);
6840 766 : if ((SymbolTable_IsConst (op3)) && (SymbolConversion_GccKnowsAbout (op3)))
6841 : {
6842 : /* fine, we can take advantage of this and fold constants */
6843 24 : if (SymbolTable_IsConst (op1))
6844 : {
6845 : /* avoid gcc warning by using compound statement even if not strictly necessary. */
6846 24 : if (((SymbolTable_IsConstString (op3)) && ((SymbolTable_GetStringLength (tokenno, op3)) == 1)) || ((SymbolTable_GetType (op3)) == M2Base_Char))
6847 : {
6848 24 : SymbolConversion_AddModGcc (op1, m2expr_BuildCap (location, SymbolConversion_Mod2Gcc (op3)));
6849 24 : (*p.proc) (op1);
6850 24 : NoChange = false;
6851 24 : M2Quads_SubQuad (quad);
6852 : }
6853 : else
6854 : {
6855 0 : M2MetaError_MetaErrorT1 (tokenno, (const char *) "parameter to CAP must be a single character {%1Ead}", 51, op3);
6856 : }
6857 : }
6858 : }
6859 : }
6860 8678 : else if ((SymbolTable_GetSymName (op2)) == (NameKey_MakeKey ((const char *) "ABS", 3)))
6861 : {
6862 : /* avoid dangling else. */
6863 796 : M2GCCDeclare_TryDeclareConstant (tokenno, op3);
6864 796 : if ((SymbolTable_IsConst (op3)) && (SymbolConversion_GccKnowsAbout (op3)))
6865 : {
6866 : /* fine, we can take advantage of this and fold constants */
6867 12 : if (SymbolTable_IsConst (op1))
6868 : {
6869 12 : SymbolConversion_AddModGcc (op1, m2expr_BuildAbs (location, SymbolConversion_Mod2Gcc (op3)));
6870 12 : (*p.proc) (op1);
6871 12 : NoChange = false;
6872 12 : M2Quads_SubQuad (quad);
6873 : }
6874 : }
6875 : }
6876 7882 : else if (op2 == M2Base_Im)
6877 : {
6878 : /* avoid dangling else. */
6879 90 : M2GCCDeclare_TryDeclareConstant (tokenno, op3);
6880 90 : if ((SymbolTable_IsConst (op3)) && (SymbolConversion_GccKnowsAbout (op3)))
6881 : {
6882 : /* fine, we can take advantage of this and fold constants */
6883 36 : if (SymbolTable_IsConst (op1))
6884 : {
6885 36 : SymbolConversion_AddModGcc (op1, m2expr_BuildIm (SymbolConversion_Mod2Gcc (op3)));
6886 36 : (*p.proc) (op1);
6887 36 : NoChange = false;
6888 36 : M2Quads_SubQuad (quad);
6889 : }
6890 : }
6891 : }
6892 7792 : else if (op2 == M2Base_Re)
6893 : {
6894 : /* avoid dangling else. */
6895 90 : M2GCCDeclare_TryDeclareConstant (tokenno, op3);
6896 90 : if ((SymbolTable_IsConst (op3)) && (SymbolConversion_GccKnowsAbout (op3)))
6897 : {
6898 : /* fine, we can take advantage of this and fold constants */
6899 36 : if (SymbolTable_IsConst (op1))
6900 : {
6901 36 : SymbolConversion_AddModGcc (op1, m2expr_BuildRe (SymbolConversion_Mod2Gcc (op3)));
6902 36 : (*p.proc) (op1);
6903 36 : NoChange = false;
6904 36 : M2Quads_SubQuad (quad);
6905 : }
6906 : }
6907 : }
6908 7702 : else if (op2 == M2Base_Cmplx)
6909 : {
6910 : /* avoid dangling else. */
6911 1314 : M2GCCDeclare_TryDeclareConstant (tokenno, SymbolTable_GetNth (op3, 1));
6912 1314 : M2GCCDeclare_TryDeclareConstant (tokenno, SymbolTable_GetNth (op3, 2));
6913 1314 : if ((((SymbolTable_IsConst (SymbolTable_GetNth (op3, 1))) && (SymbolConversion_GccKnowsAbout (SymbolTable_GetNth (op3, 1)))) && (SymbolTable_IsConst (SymbolTable_GetNth (op3, 2)))) && (SymbolConversion_GccKnowsAbout (SymbolTable_GetNth (op3, 2))))
6914 : {
6915 : /* fine, we can take advantage of this and fold constants */
6916 414 : if (SymbolTable_IsConst (op1))
6917 : {
6918 414 : type = M2Base_GetCmplxReturnType (SymbolTable_GetType (SymbolTable_GetNth (op3, 1)), SymbolTable_GetType (SymbolTable_GetNth (op3, 2)));
6919 414 : if (type == SymbolTable_NulSym)
6920 : {
6921 0 : M2MetaError_MetaErrorT2 (tokenno, (const char *) "real {%1Eatd} and imaginary {%2atd} types are incompatible", 58, SymbolTable_GetNth (op3, 1), SymbolTable_GetNth (op3, 2));
6922 : }
6923 : else
6924 : {
6925 414 : SymbolConversion_AddModGcc (op1, m2expr_BuildCmplx (location, SymbolConversion_Mod2Gcc (type), SymbolConversion_Mod2Gcc (SymbolTable_GetNth (op3, 1)), SymbolConversion_Mod2Gcc (SymbolTable_GetNth (op3, 2))));
6926 414 : (*p.proc) (op1);
6927 414 : NoChange = false;
6928 414 : M2Quads_SubQuad (quad);
6929 : }
6930 : }
6931 : }
6932 : }
6933 6388 : else if (op2 == M2System_TBitSize)
6934 : {
6935 : /* avoid dangling else. */
6936 6388 : FoldTBitsize (tokenno, p, quad, op1, op3);
6937 : }
6938 : else
6939 : {
6940 : /* avoid dangling else. */
6941 0 : M2Error_InternalError ((const char *) "only expecting LENGTH, CAP, ABS, IM, RE", 39);
6942 : }
6943 9444 : }
6944 :
6945 :
6946 : /*
6947 : CodeStandardFunction -
6948 : */
6949 :
6950 330 : static void CodeStandardFunction (unsigned int quad, unsigned int result, unsigned int function, unsigned int param)
6951 : {
6952 330 : unsigned int type;
6953 330 : location_t location;
6954 :
6955 330 : M2GCCDeclare_DeclareConstant (CurrentQuadToken, param);
6956 330 : M2GCCDeclare_DeclareConstructor (CurrentQuadToken, quad, param);
6957 330 : location = M2LexBuf_TokenToLocation (CurrentQuadToken);
6958 330 : if ((function != SymbolTable_NulSym) && ((SymbolTable_GetSymName (function)) == (NameKey_MakeKey ((const char *) "Length", 6))))
6959 : {
6960 : /* avoid dangling else. */
6961 0 : if (SymbolTable_IsConst (result))
6962 : {
6963 0 : M2Error_InternalError ((const char *) "LENGTH function should already have been folded", 47);
6964 : }
6965 : }
6966 330 : else if ((function != SymbolTable_NulSym) && ((SymbolTable_GetSymName (function)) == (NameKey_MakeKey ((const char *) "CAP", 3))))
6967 : {
6968 : /* avoid dangling else. */
6969 82 : if (SymbolTable_IsConst (result))
6970 : {
6971 0 : M2Error_InternalError ((const char *) "CAP function should already have been folded", 44);
6972 : }
6973 : else
6974 : {
6975 82 : m2statement_BuildAssignmentStatement (location, SymbolConversion_Mod2Gcc (result), m2expr_BuildCap (location, SymbolConversion_Mod2Gcc (param)));
6976 : }
6977 : }
6978 248 : else if ((function != SymbolTable_NulSym) && ((SymbolTable_GetSymName (function)) == (NameKey_MakeKey ((const char *) "ABS", 3))))
6979 : {
6980 : /* avoid dangling else. */
6981 140 : if (SymbolTable_IsConst (result))
6982 : {
6983 0 : M2Error_InternalError ((const char *) "ABS function should already have been folded", 44);
6984 : }
6985 : else
6986 : {
6987 140 : m2statement_BuildAssignmentStatement (location, SymbolConversion_Mod2Gcc (result), m2expr_BuildAbs (location, SymbolConversion_Mod2Gcc (param)));
6988 : }
6989 : }
6990 108 : else if (function == M2Base_Im)
6991 : {
6992 : /* avoid dangling else. */
6993 18 : if (SymbolTable_IsConst (result))
6994 : {
6995 0 : M2Error_InternalError ((const char *) "IM function should already have been folded", 43);
6996 : }
6997 : else
6998 : {
6999 18 : m2statement_BuildAssignmentStatement (location, SymbolConversion_Mod2Gcc (result), m2expr_BuildIm (SymbolConversion_Mod2Gcc (param)));
7000 : }
7001 : }
7002 90 : else if (function == M2Base_Re)
7003 : {
7004 : /* avoid dangling else. */
7005 18 : if (SymbolTable_IsConst (result))
7006 : {
7007 0 : M2Error_InternalError ((const char *) "RE function should already have been folded", 43);
7008 : }
7009 : else
7010 : {
7011 18 : m2statement_BuildAssignmentStatement (location, SymbolConversion_Mod2Gcc (result), m2expr_BuildRe (SymbolConversion_Mod2Gcc (param)));
7012 : }
7013 : }
7014 72 : else if (function == M2Base_Cmplx)
7015 : {
7016 : /* avoid dangling else. */
7017 72 : if (SymbolTable_IsConst (result))
7018 : {
7019 0 : M2Error_InternalError ((const char *) "CMPLX function should already have been folded", 46);
7020 : }
7021 : else
7022 : {
7023 72 : type = M2Base_GetCmplxReturnType (SymbolTable_GetType (SymbolTable_GetNth (param, 1)), SymbolTable_GetType (SymbolTable_GetNth (param, 2)));
7024 72 : if (type == SymbolTable_NulSym)
7025 : {
7026 0 : M2MetaError_MetaErrorT2 (CurrentQuadToken, (const char *) "real {%1Eatd} and imaginary {%2atd} types are incompatible", 58, SymbolTable_GetNth (param, 1), SymbolTable_GetNth (param, 2));
7027 : }
7028 : else
7029 : {
7030 72 : m2statement_BuildAssignmentStatement (location, SymbolConversion_Mod2Gcc (result), m2expr_BuildCmplx (location, SymbolConversion_Mod2Gcc (type), SymbolConversion_Mod2Gcc (SymbolTable_GetNth (param, 1)), SymbolConversion_Mod2Gcc (SymbolTable_GetNth (param, 2))));
7031 : }
7032 : }
7033 : }
7034 0 : else if (function == M2System_TBitSize)
7035 : {
7036 : /* avoid dangling else. */
7037 0 : if (SymbolTable_IsConst (result))
7038 : {
7039 0 : M2Error_InternalError ((const char *) "TBITSIZE function should already have been folded", 49);
7040 : }
7041 : else
7042 : {
7043 0 : m2statement_BuildAssignmentStatement (location, SymbolConversion_Mod2Gcc (result), m2expr_BuildTBitSize (location, SymbolConversion_Mod2Gcc (param)));
7044 : }
7045 : }
7046 : else
7047 : {
7048 : /* avoid dangling else. */
7049 0 : M2Error_InternalError ((const char *) "expecting LENGTH, CAP, ABS, IM", 30);
7050 : }
7051 330 : }
7052 :
7053 :
7054 : /*
7055 : CodeSavePriority - checks to see whether op2 is reachable and is directly accessible
7056 : externally. If so then it saves the current interrupt priority
7057 : in op1 and sets the current priority to that determined by
7058 : appropriate module.
7059 :
7060 : op1 := op3(GetModuleScope(op2))
7061 : */
7062 :
7063 420 : static void CodeSavePriority (unsigned int oldValue, unsigned int scopeSym, unsigned int procedureSym)
7064 : {
7065 420 : tree funcTree;
7066 420 : unsigned int mod;
7067 420 : NameKey_Name n;
7068 420 : location_t location;
7069 :
7070 420 : location = M2LexBuf_TokenToLocation (CurrentQuadToken);
7071 420 : if (((SymbolTable_IsModule (scopeSym)) || (SymbolTable_IsDefImp (scopeSym))) || ((SymbolTable_IsProcedure (scopeSym)) && (SymbolTable_GetNeedSavePriority (scopeSym))))
7072 : {
7073 206 : if (SymbolTable_IsProcedure (scopeSym))
7074 : {
7075 130 : mod = SymbolTable_GetModuleScope (scopeSym);
7076 : }
7077 : else
7078 : {
7079 76 : M2Debug_Assert ((SymbolTable_IsModule (scopeSym)) || (SymbolTable_IsDefImp (scopeSym)));
7080 76 : mod = scopeSym;
7081 : }
7082 206 : if ((SymbolTable_GetPriority (mod)) != SymbolTable_NulSym)
7083 : {
7084 206 : if (PriorityDebugging)
7085 : {
7086 : n = SymbolTable_GetSymName (scopeSym);
7087 : M2Printf_printf1 ((const char *) "procedure <%a> needs to save interrupts\\n", 41, (const unsigned char *) &n, (sizeof (n)-1));
7088 : }
7089 206 : M2GCCDeclare_DeclareConstant (CurrentQuadToken, SymbolTable_GetPriority (mod));
7090 206 : m2statement_BuildParam (location, SymbolConversion_Mod2Gcc (SymbolTable_GetPriority (mod)));
7091 206 : funcTree = m2statement_BuildProcedureCallTree (location, SymbolConversion_Mod2Gcc (procedureSym), SymbolConversion_Mod2Gcc (SymbolTable_GetType (procedureSym)));
7092 206 : funcTree = m2statement_BuildFunctValue (location, SymbolConversion_Mod2Gcc (oldValue));
7093 206 : m2type_AddStatement (location, funcTree);
7094 : }
7095 : }
7096 420 : }
7097 :
7098 :
7099 : /*
7100 : CodeRestorePriority - checks to see whether op2 is reachable and is directly accessible
7101 : externally. If so then it restores the previous interrupt priority
7102 : held in op1.
7103 :
7104 : op1 := op3(op1)
7105 : */
7106 :
7107 412 : static void CodeRestorePriority (unsigned int oldValue, unsigned int scopeSym, unsigned int procedureSym)
7108 : {
7109 412 : tree funcTree;
7110 412 : unsigned int mod;
7111 412 : NameKey_Name n;
7112 412 : location_t location;
7113 :
7114 412 : location = M2LexBuf_TokenToLocation (CurrentQuadToken);
7115 412 : if (((SymbolTable_IsModule (scopeSym)) || (SymbolTable_IsDefImp (scopeSym))) || ((SymbolTable_IsProcedure (scopeSym)) && (SymbolTable_GetNeedSavePriority (scopeSym))))
7116 : {
7117 198 : if (SymbolTable_IsProcedure (scopeSym))
7118 : {
7119 122 : mod = SymbolTable_GetModuleScope (scopeSym);
7120 : }
7121 : else
7122 : {
7123 76 : M2Debug_Assert ((SymbolTable_IsModule (scopeSym)) || (SymbolTable_IsDefImp (scopeSym)));
7124 76 : mod = scopeSym;
7125 : }
7126 198 : if ((SymbolTable_GetPriority (mod)) != SymbolTable_NulSym)
7127 : {
7128 198 : if (PriorityDebugging)
7129 : {
7130 : n = SymbolTable_GetSymName (scopeSym);
7131 : M2Printf_printf1 ((const char *) "procedure <%a> needs to restore interrupts\\n", 44, (const unsigned char *) &n, (sizeof (n)-1));
7132 : }
7133 198 : m2statement_BuildParam (location, SymbolConversion_Mod2Gcc (oldValue));
7134 198 : funcTree = m2statement_BuildProcedureCallTree (location, SymbolConversion_Mod2Gcc (procedureSym), SymbolConversion_Mod2Gcc (SymbolTable_GetType (procedureSym)));
7135 198 : funcTree = m2statement_BuildFunctValue (location, SymbolConversion_Mod2Gcc (oldValue));
7136 198 : m2type_AddStatement (location, funcTree);
7137 : }
7138 : }
7139 412 : }
7140 :
7141 :
7142 : /*
7143 : FoldBinarySet - attempts to fold set arithmetic it removes the quad if successful.
7144 : */
7145 :
7146 70456 : static void FoldBinarySet (unsigned int tokenno, M2GCCDeclare_WalkAction p, M2GenGCC_ProcedureCardinal op, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3)
7147 : {
7148 70456 : location_t location;
7149 :
7150 : /* firstly try and ensure that constants are declared */
7151 70456 : M2GCCDeclare_TryDeclareConstant (tokenno, op2);
7152 70456 : M2GCCDeclare_TryDeclareConstant (tokenno, op3);
7153 70456 : location = M2LexBuf_TokenToLocation (tokenno);
7154 70456 : if ((SymbolConversion_GccKnowsAbout (op2)) && (SymbolConversion_GccKnowsAbout (op3)))
7155 : {
7156 4088 : if (CheckBinaryExpressionTypes (quad, p))
7157 : {
7158 4088 : if (((((SymbolTable_IsConst (op2)) && (SymbolTable_IsConstSet (op2))) && (SymbolTable_IsConst (op3))) && (SymbolTable_IsConstSet (op3))) && (SymbolTable_IsConst (op1)))
7159 : {
7160 224 : if ((SymbolTable_IsValueSolved (op2)) && (SymbolTable_IsValueSolved (op3)))
7161 : {
7162 224 : M2Debug_Assert ((M2Base_MixTypes (FindType (op3), FindType (op2), tokenno)) != SymbolTable_NulSym);
7163 224 : SymbolTable_PutConst (op1, M2Base_MixTypes (FindType (op3), FindType (op2), tokenno));
7164 224 : SymbolTable_PushValue (op2);
7165 224 : SymbolTable_PushValue (op3);
7166 224 : (*op.proc) (tokenno);
7167 224 : SymbolTable_PopValue (op1);
7168 224 : SymbolTable_PushValue (op1);
7169 224 : SymbolTable_PutConstSet (op1);
7170 224 : SymbolConversion_AddModGcc (op1, m2decl_DeclareKnownConstant (location, SymbolConversion_Mod2Gcc (SymbolTable_GetType (op3)), M2ALU_PopSetTree (tokenno)));
7171 224 : (*p.proc) (op1);
7172 224 : NoChange = false;
7173 224 : M2Quads_SubQuad (quad);
7174 : }
7175 : }
7176 : }
7177 : }
7178 70456 : }
7179 :
7180 :
7181 : /*
7182 : FoldSetOr - check whether we can fold a set arithmetic or.
7183 : */
7184 :
7185 14562 : static void FoldSetOr (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3)
7186 : {
7187 0 : FoldBinarySet (tokenno, p, (M2GenGCC_ProcedureCardinal) {(M2GenGCC_ProcedureCardinal_t) M2ALU_SetOr}, quad, op1, op2, op3);
7188 0 : }
7189 :
7190 :
7191 : /*
7192 : CodeSetOr - encode set arithmetic or.
7193 : */
7194 :
7195 686 : static void CodeSetOr (unsigned int quad)
7196 : {
7197 686 : CodeBinarySet ((M2GenGCC_ProcedureCardinal) {(M2GenGCC_ProcedureCardinal_t) M2ALU_SetOr}, (M2GenGCC_BinaryFunction) {(M2GenGCC_BinaryFunction_t) m2expr_BuildLogicalOr}, NameKey_MakeKey ((const char *) "Or", 2), quad);
7198 686 : }
7199 :
7200 :
7201 : /*
7202 : FoldSetAnd - check whether we can fold a logical and.
7203 : */
7204 :
7205 3684 : static void FoldSetAnd (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3)
7206 : {
7207 0 : FoldBinarySet (tokenno, p, (M2GenGCC_ProcedureCardinal) {(M2GenGCC_ProcedureCardinal_t) M2ALU_SetAnd}, quad, op1, op2, op3);
7208 0 : }
7209 :
7210 :
7211 : /*
7212 : CodeSetAnd - encode set arithmetic and.
7213 : */
7214 :
7215 284 : static void CodeSetAnd (unsigned int quad)
7216 : {
7217 284 : CodeBinarySet ((M2GenGCC_ProcedureCardinal) {(M2GenGCC_ProcedureCardinal_t) M2ALU_SetAnd}, (M2GenGCC_BinaryFunction) {(M2GenGCC_BinaryFunction_t) m2expr_BuildLogicalAnd}, NameKey_MakeKey ((const char *) "And", 3), quad);
7218 284 : }
7219 :
7220 :
7221 : /*
7222 : CalcHighSetBit - calculate the most significant bit used in a set starting from bit zero.
7223 : */
7224 :
7225 4260 : static tree CalcHighSetBit (location_t location, unsigned int settype)
7226 : {
7227 4260 : SymbolTable_PushValue (M2GCCDeclare_GetTypeMax (SymbolTable_SkipType (SymbolTable_GetType (settype))));
7228 4260 : M2ALU_PushIntegerTree (m2convert_BuildConvert (location, m2type_GetM2ZType (), M2ALU_PopIntegerTree (), false));
7229 4260 : SymbolTable_PushValue (M2GCCDeclare_GetTypeMin (SymbolTable_SkipType (SymbolTable_GetType (settype))));
7230 4260 : M2ALU_PushIntegerTree (m2convert_BuildConvert (location, m2type_GetM2ZType (), M2ALU_PopIntegerTree (), false));
7231 4260 : M2ALU_Sub ();
7232 4260 : return M2ALU_PopIntegerTree ();
7233 : /* static analysis guarentees a RETURN statement will be used before here. */
7234 : __builtin_unreachable ();
7235 : }
7236 :
7237 :
7238 : /*
7239 : CalcBitsInSet - returns the number of minimum number of bits used to represent a set.
7240 : */
7241 :
7242 3258 : static tree CalcBitsInSet (location_t location, unsigned int settype)
7243 : {
7244 3258 : M2ALU_PushIntegerTree (m2convert_BuildConvert (location, m2type_GetM2ZType (), CalcHighSetBit (location, settype), false));
7245 3258 : M2ALU_PushCard (1);
7246 3258 : M2ALU_PushIntegerTree (m2convert_BuildConvert (location, m2type_GetM2ZType (), M2ALU_PopIntegerTree (), false));
7247 3258 : M2ALU_Addn ();
7248 3258 : return M2ALU_PopIntegerTree ();
7249 : /* static analysis guarentees a RETURN statement will be used before here. */
7250 : __builtin_unreachable ();
7251 : }
7252 :
7253 :
7254 : /*
7255 : SetWideSetShiftRotate - generate a call:
7256 : M2WIDESET.name (dest, src, HIGHBIT (settype), count).
7257 : */
7258 :
7259 336 : static void SetWideSetShiftRotate (unsigned int tokenno, NameKey_Name name, unsigned int settype, unsigned int dest, unsigned int src, unsigned int count)
7260 : {
7261 336 : unsigned int procedure;
7262 336 : unsigned int param1;
7263 336 : unsigned int param2;
7264 336 : tree array1;
7265 336 : tree array2;
7266 336 : tree call;
7267 336 : tree highbit;
7268 336 : location_t location;
7269 :
7270 336 : procedure = FromM2WIDESETImport (tokenno, name);
7271 336 : location = M2LexBuf_TokenToLocation (tokenno);
7272 336 : param1 = SymbolTable_GetNthParamAnyClosest (procedure, 1, SymbolTable_GetMainModule ());
7273 336 : param2 = SymbolTable_GetNthParamAnyClosest (procedure, 2, SymbolTable_GetMainModule ());
7274 336 : array1 = CreateSetArrayParam (location, tokenno, dest, param1);
7275 336 : array2 = CreateSetArrayParam (location, tokenno, src, param2);
7276 336 : highbit = CalcHighSetBit (location, settype);
7277 336 : m2statement_BuildParam (location, m2convert_ToCardinal (location, SymbolConversion_Mod2Gcc (count))); /* Parameter 4. */
7278 336 : m2statement_BuildParam (location, m2convert_ToCardinal (location, highbit)); /* Parameter 3. */
7279 336 : m2statement_BuildParam (location, array2); /* Parameter 2. */
7280 336 : m2statement_BuildParam (location, array1); /* Parameter 1. */
7281 336 : call = m2statement_BuildProcedureCallTree (location, SymbolConversion_Mod2Gcc (procedure), NULL); /* Parameter 1. */
7282 336 : m2statement_SetLastFunction (NULL);
7283 336 : m2type_AddStatement (location, call);
7284 336 : }
7285 :
7286 :
7287 : /*
7288 : CodeNarrowSetShift -
7289 : */
7290 :
7291 472 : static void CodeNarrowSetShift (unsigned int tokenno, unsigned int settype, unsigned int dest, unsigned int src, unsigned int count)
7292 : {
7293 472 : location_t location;
7294 472 : tree nbits;
7295 :
7296 472 : location = M2LexBuf_TokenToLocation (tokenno);
7297 472 : nbits = CalcBitsInSet (location, settype);
7298 472 : m2expr_BuildLogicalShift (location, SymbolConversion_Mod2Gcc (dest), SymbolConversion_Mod2Gcc (src), SymbolConversion_Mod2Gcc (count), nbits, false);
7299 472 : }
7300 :
7301 :
7302 : /*
7303 : CodeNarrowSetRotate -
7304 : */
7305 :
7306 274 : static void CodeNarrowSetRotate (unsigned int tokenno, unsigned int settype, unsigned int dest, unsigned int src, unsigned int count)
7307 : {
7308 274 : location_t location;
7309 274 : tree nbits;
7310 :
7311 274 : location = M2LexBuf_TokenToLocation (tokenno);
7312 274 : nbits = CalcBitsInSet (location, settype);
7313 274 : m2expr_BuildLogicalRotate (location, SymbolConversion_Mod2Gcc (dest), SymbolConversion_Mod2Gcc (src), SymbolConversion_Mod2Gcc (count), nbits, false);
7314 274 : }
7315 :
7316 :
7317 : /*
7318 : CodeBinarySetShiftRotate - encode a binary set arithmetic operation.
7319 : */
7320 :
7321 1082 : static void CodeBinarySetShiftRotate (unsigned int quad, bool isshift)
7322 : {
7323 1082 : M2Quads_QuadOperator op;
7324 1082 : unsigned int combined;
7325 1082 : unsigned int lastpos;
7326 1082 : unsigned int destpos;
7327 1082 : unsigned int srcpos;
7328 1082 : unsigned int countpos;
7329 1082 : unsigned int dest;
7330 1082 : unsigned int src;
7331 1082 : unsigned int count;
7332 1082 : bool overflowChecking;
7333 1082 : bool constExpr;
7334 1082 : unsigned int settype;
7335 :
7336 1082 : M2Quads_GetQuadOtok (quad, &lastpos, &op, &dest, &src, &count, &overflowChecking, &constExpr, &destpos, &srcpos, &countpos);
7337 : /* Firstly ensure that constant literals are declared. */
7338 1082 : M2GCCDeclare_DeclareConstant (countpos, count);
7339 1082 : M2GCCDeclare_DeclareConstant (srcpos, src);
7340 1082 : M2GCCDeclare_DeclareConstructor (countpos, quad, count);
7341 1082 : M2GCCDeclare_DeclareConstructor (srcpos, quad, src);
7342 1082 : if (SymbolTable_IsConst (dest))
7343 : {
7344 0 : combined = M2LexBuf_MakeVirtual2Tok (srcpos, countpos);
7345 0 : if ((SymbolTable_IsValueSolved (src)) && (SymbolTable_IsValueSolved (count)))
7346 : {
7347 0 : M2Debug_Assert ((M2Base_MixTypes (FindType (count), FindType (src), combined)) != SymbolTable_NulSym);
7348 0 : SymbolTable_PutConst (dest, FindType (count));
7349 0 : SymbolTable_PushValue (src);
7350 0 : SymbolTable_PushValue (count);
7351 0 : if (isshift)
7352 : {
7353 0 : M2ALU_SetShift (combined);
7354 : }
7355 : else
7356 : {
7357 0 : M2ALU_SetRotate (combined);
7358 : }
7359 0 : SymbolTable_PopValue (dest);
7360 0 : SymbolTable_PutConstSet (dest);
7361 : }
7362 : else
7363 : {
7364 0 : M2MetaError_MetaErrorT0 (combined, (const char *) "{%E}constant expression cannot be evaluated", 43);
7365 : }
7366 : }
7367 : else
7368 : {
7369 1082 : combined = M2LexBuf_MakeVirtualTok (destpos, srcpos, countpos);
7370 1082 : settype = SymbolTable_GetDType (dest);
7371 1082 : M2Debug_Assert (SymbolTable_IsSet (settype));
7372 : /* Check for narrow and wide sets and call M2WIDESET if appropriate. */
7373 1082 : if (SymbolTable_GetSetInWord (settype))
7374 : {
7375 746 : if (isshift)
7376 : {
7377 472 : CodeNarrowSetShift (combined, settype, dest, src, count);
7378 : }
7379 : else
7380 : {
7381 274 : CodeNarrowSetRotate (combined, settype, dest, src, count);
7382 : }
7383 : }
7384 : else
7385 : {
7386 336 : if (isshift)
7387 : {
7388 204 : SetWideSetShiftRotate (combined, NameKey_MakeKey ((const char *) "Shift", 5), settype, dest, src, count);
7389 : }
7390 : else
7391 : {
7392 132 : SetWideSetShiftRotate (combined, NameKey_MakeKey ((const char *) "Rotate", 6), settype, dest, src, count);
7393 : }
7394 : }
7395 : }
7396 1082 : }
7397 :
7398 :
7399 : /*
7400 : FoldSetShift - check whether we can fold a logical shift.
7401 : */
7402 :
7403 27654 : static void FoldSetShift (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int Dest, unsigned int Src, unsigned int ShiftCount)
7404 : {
7405 0 : FoldBinarySet (tokenno, p, (M2GenGCC_ProcedureCardinal) {(M2GenGCC_ProcedureCardinal_t) M2ALU_SetShift}, quad, Dest, Src, ShiftCount);
7406 0 : }
7407 :
7408 :
7409 : /*
7410 : CodeSetShift - encode set arithmetic shift.
7411 : */
7412 :
7413 676 : static void CodeSetShift (unsigned int quad)
7414 : {
7415 676 : CodeBinarySetShiftRotate (quad, true);
7416 676 : }
7417 :
7418 :
7419 : /*
7420 : FoldSetRotate - check whether we can fold a logical rotate.
7421 : */
7422 :
7423 23892 : static void FoldSetRotate (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int Dest, unsigned int Src, unsigned int RotateCount)
7424 : {
7425 0 : FoldBinarySet (tokenno, p, (M2GenGCC_ProcedureCardinal) {(M2GenGCC_ProcedureCardinal_t) M2ALU_SetRotate}, quad, Dest, Src, RotateCount);
7426 0 : }
7427 :
7428 :
7429 : /*
7430 : CodeSetRotate - encode set arithmetic rotate.
7431 : */
7432 :
7433 406 : static void CodeSetRotate (unsigned int quad)
7434 : {
7435 406 : CodeBinarySetShiftRotate (quad, false);
7436 406 : }
7437 :
7438 :
7439 : /*
7440 : CodeSetLogicalDifference - encode set arithmetic logical difference.
7441 : */
7442 :
7443 66 : static void CodeSetLogicalDifference (unsigned int quad)
7444 : {
7445 66 : CodeBinarySet ((M2GenGCC_ProcedureCardinal) {(M2GenGCC_ProcedureCardinal_t) M2ALU_SetAnd}, (M2GenGCC_BinaryFunction) {(M2GenGCC_BinaryFunction_t) m2expr_BuildLogicalDifference}, NameKey_MakeKey ((const char *) "LogicalDifference", 17), quad);
7446 66 : }
7447 :
7448 :
7449 : /*
7450 : FoldSymmetricDifference - check whether we can fold a logical difference.
7451 : */
7452 :
7453 664 : static void FoldSymmetricDifference (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3)
7454 : {
7455 0 : FoldBinarySet (tokenno, p, (M2GenGCC_ProcedureCardinal) {(M2GenGCC_ProcedureCardinal_t) M2ALU_SetSymmetricDifference}, quad, op1, op2, op3);
7456 0 : }
7457 :
7458 :
7459 : /*
7460 : CodeSetSymmetricDifference - code set difference.
7461 : A logical xor expression.
7462 : */
7463 :
7464 124 : static void CodeSetSymmetricDifference (unsigned int quad)
7465 : {
7466 124 : CodeBinarySet ((M2GenGCC_ProcedureCardinal) {(M2GenGCC_ProcedureCardinal_t) M2ALU_SetSymmetricDifference}, (M2GenGCC_BinaryFunction) {(M2GenGCC_BinaryFunction_t) m2expr_BuildSymmetricDifference}, NameKey_MakeKey ((const char *) "SymmetricDifference", 19), quad);
7467 124 : }
7468 :
7469 :
7470 : /*
7471 : CodeUnarySet - encode a unary set arithmetic operation.
7472 : Set operands may be longer than a word.
7473 : */
7474 :
7475 78 : static void CodeUnarySet (M2GenGCC_ProcedureCardinal constop, M2GenGCC_UnaryFunction unfunc, unsigned int tokenno, NameKey_Name wideprocname, unsigned int quad, unsigned int result, unsigned int expr)
7476 : {
7477 78 : location_t location;
7478 78 : unsigned int settype;
7479 :
7480 : /* Firstly ensure that constant literals are declared. */
7481 78 : M2GCCDeclare_DeclareConstant (tokenno, expr);
7482 78 : M2GCCDeclare_DeclareConstructor (tokenno, quad, expr);
7483 78 : location = M2LexBuf_TokenToLocation (tokenno);
7484 78 : if (SymbolTable_IsConst (result))
7485 : {
7486 0 : if (SymbolTable_IsValueSolved (expr))
7487 : {
7488 0 : M2Debug_Assert ((FindType (expr)) != SymbolTable_NulSym);
7489 0 : SymbolTable_PutConst (result, FindType (expr));
7490 0 : SymbolTable_PushValue (expr);
7491 0 : (*constop.proc) (tokenno);
7492 0 : SymbolTable_PopValue (result);
7493 0 : SymbolTable_PushValue (result);
7494 0 : SymbolTable_PutConstSet (result);
7495 0 : M2GCCDeclare_ConstantKnownAndUsed (result, m2decl_DeclareKnownConstant (location, SymbolConversion_Mod2Gcc (SymbolTable_GetType (expr)), M2ALU_PopSetTree (tokenno)));
7496 : }
7497 : else
7498 : {
7499 0 : M2MetaError_MetaErrorT0 (tokenno, (const char *) "{%E}constant expression cannot be evaluated", 43);
7500 : }
7501 : }
7502 : else
7503 : {
7504 78 : checkDeclare (result);
7505 78 : settype = SymbolTable_GetLType (result);
7506 78 : M2Debug_Assert (SymbolTable_IsSet (settype));
7507 78 : if (SymbolTable_GetSetInWord (settype))
7508 : {
7509 72 : SetNarrowUnary (location, unfunc, settype, result, expr);
7510 : }
7511 : else
7512 : {
7513 6 : SetWideUnary (tokenno, wideprocname, settype, result, expr);
7514 : }
7515 : }
7516 78 : }
7517 :
7518 :
7519 : /*
7520 : FromM2WIDESETImport - returns M2WIDESET.name.
7521 : */
7522 :
7523 2170 : static unsigned int FromM2WIDESETImport (unsigned int tokenno, NameKey_Name name)
7524 : {
7525 2170 : unsigned int sym;
7526 2170 : unsigned int module;
7527 :
7528 2170 : sym = SymbolTable_NulSym;
7529 2170 : if (M2Options_GetWideset ())
7530 : {
7531 : /* avoid dangling else. */
7532 2170 : module = M2Batch_MakeDefinitionSource (tokenno, NameKey_MakeKey ((const char *) "M2WIDESET", 9));
7533 2170 : sym = SymbolTable_FromModuleGetSym (tokenno, name, module);
7534 2170 : if (SymbolTable_IsUnknown (sym))
7535 : {
7536 0 : M2MetaError_MetaErrorT2 (tokenno, (const char *) "procedure function {%1Aad} is not available from {%2ad}", 55, sym, module);
7537 : }
7538 : }
7539 : else
7540 : {
7541 0 : M2MetaError_MetaErrorT0 (tokenno, (const char *) "{%0A}wideset is not available due to -fno-wideset", 49);
7542 : }
7543 2170 : return sym;
7544 : /* static analysis guarentees a RETURN statement will be used before here. */
7545 : __builtin_unreachable ();
7546 : }
7547 :
7548 :
7549 : /*
7550 : SetWideUnaryLibrary - call wideprocname (result, expr) passing result and expr
7551 : as an array of byte.
7552 : */
7553 :
7554 2 : static void SetWideUnaryLibrary (unsigned int tokenno, NameKey_Name wideprocname, unsigned int settype, unsigned int result, unsigned int expr)
7555 : {
7556 2 : location_t location;
7557 2 : unsigned int procedure;
7558 2 : unsigned int param1;
7559 2 : unsigned int param2;
7560 2 : tree highbit;
7561 2 : tree array1;
7562 2 : tree array2;
7563 2 : tree call;
7564 :
7565 2 : procedure = FromM2WIDESETImport (tokenno, wideprocname);
7566 2 : checkDeclare (procedure);
7567 2 : location = M2LexBuf_TokenToLocation (tokenno);
7568 2 : highbit = m2convert_ToCardinal (location, CalcBitsInSet (location, settype));
7569 2 : param1 = SymbolTable_GetNthParamAnyClosest (procedure, 1, SymbolTable_GetMainModule ());
7570 2 : param2 = SymbolTable_GetNthParamAnyClosest (procedure, 2, SymbolTable_GetMainModule ());
7571 2 : array1 = CreateSetArrayParam (location, tokenno, result, param1);
7572 2 : array2 = CreateSetArrayParam (location, tokenno, expr, param2);
7573 2 : m2statement_BuildParam (location, highbit); /* 3rd Parameter. */
7574 2 : m2statement_BuildParam (location, array2); /* 2nd Parameter. */
7575 2 : m2statement_BuildParam (location, array1); /* 1st Parameter. */
7576 2 : call = m2statement_BuildProcedureCallTree (location, SymbolConversion_Mod2Gcc (procedure), NULL); /* 1st Parameter. */
7577 2 : m2statement_SetLastFunction (NULL);
7578 2 : m2type_AddStatement (location, call);
7579 2 : }
7580 :
7581 :
7582 : /*
7583 : SetWideUnaryBuiltinNot - build an builtin wideset NOT operation.
7584 : */
7585 :
7586 4 : static void SetWideUnaryBuiltinNot (unsigned int tokenno, unsigned int result, unsigned int expr)
7587 : {
7588 4 : location_t location;
7589 4 : tree byte;
7590 4 : tree lhs;
7591 4 : tree rhs;
7592 4 : tree index;
7593 4 : tree high;
7594 :
7595 4 : location = M2LexBuf_TokenToLocation (tokenno);
7596 4 : high = ResolveHigh (tokenno, 1, result);
7597 4 : index = m2expr_GetIntegerZero (location);
7598 4 : byte = SymbolConversion_Mod2Gcc (M2System_Byte);
7599 64 : do {
7600 64 : rhs = m2expr_BuildArray (location, byte, SymbolConversion_Mod2Gcc (expr), index, m2expr_GetIntegerZero (location));
7601 64 : rhs = m2expr_BuildSetNegate (location, rhs);
7602 64 : rhs = m2convert_BuildConvert (location, byte, rhs, false);
7603 64 : lhs = m2expr_BuildArray (location, byte, SymbolConversion_Mod2Gcc (result), index, m2expr_GetIntegerZero (location));
7604 64 : m2statement_BuildAssignmentStatement (location, lhs, rhs);
7605 64 : M2ALU_PushIntegerTree (index);
7606 64 : M2ALU_PushCard (1);
7607 64 : M2ALU_Addn ();
7608 64 : index = M2ALU_PopIntegerTree ();
7609 64 : } while (! ((m2expr_CompareTrees (index, high)) > 0));
7610 4 : }
7611 :
7612 :
7613 : /*
7614 : SetWideUnary - either call the library wideprocname or the builtin
7615 : version depending upon the optimization setting.
7616 : */
7617 :
7618 6 : static void SetWideUnary (unsigned int tokenno, NameKey_Name wideprocname, unsigned int settype, unsigned int result, unsigned int expr)
7619 : {
7620 6 : if (M2Options_OptimizeSets && (wideprocname == (NameKey_MakeKey ((const char *) "Not", 3))))
7621 : {
7622 4 : SetWideUnaryBuiltinNot (tokenno, result, expr);
7623 : }
7624 : else
7625 : {
7626 2 : SetWideUnaryLibrary (tokenno, wideprocname, settype, result, expr);
7627 : }
7628 6 : }
7629 :
7630 :
7631 : /*
7632 : SetNarrowUnary - create tree consisting of:
7633 : result := unfunc (expr)
7634 : result and expr can be lvalues.
7635 : */
7636 :
7637 72 : static void SetNarrowUnary (location_t location, M2GenGCC_UnaryFunction unfunc, unsigned int settype, unsigned int result, unsigned int expr)
7638 : {
7639 72 : bool isResultL;
7640 72 : bool isExprL;
7641 :
7642 72 : isResultL = (SymbolTable_GetMode (result)) == SymbolTable_LeftValue;
7643 72 : isExprL = (SymbolTable_GetMode (expr)) == SymbolTable_LeftValue;
7644 72 : m2statement_BuildAssignmentStatement (location, getrvalue (location, result, settype, isResultL), (tree) ((*unfunc.proc) (location, getrvalue (location, expr, settype, isExprL))));
7645 72 : }
7646 :
7647 :
7648 : /*
7649 : FoldIncl - check whether we can fold the InclOp.
7650 : result := result + (1 << expr)
7651 : */
7652 :
7653 27286 : static void FoldIncl (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int result, unsigned int expr)
7654 : {
7655 : /* firstly ensure that constant literals are declared */
7656 27286 : M2GCCDeclare_TryDeclareConstant (tokenno, expr);
7657 27286 : if ((SymbolTable_IsConst (result)) && (SymbolTable_IsConst (expr)))
7658 : {
7659 0 : if ((SymbolConversion_GccKnowsAbout (expr)) && (SymbolTable_IsValueSolved (result)))
7660 : {
7661 : /* fine, we can take advantage of this and fold constants */
7662 0 : SymbolTable_PushValue (result);
7663 0 : M2ALU_AddBit (tokenno, expr);
7664 0 : SymbolConversion_AddModGcc (result, M2ALU_PopSetTree (tokenno));
7665 0 : (*p.proc) (result);
7666 0 : NoChange = false;
7667 0 : M2Quads_SubQuad (quad);
7668 : }
7669 : }
7670 27286 : }
7671 :
7672 :
7673 : /*
7674 : FoldIfLess - check to see if it is possible to evaluate
7675 : if op1 < op2 then goto op3.
7676 : */
7677 :
7678 36982 : static void FoldIfLess (unsigned int tokenno, unsigned int quad, unsigned int left, unsigned int right, unsigned int destQuad)
7679 : {
7680 : /* Firstly ensure that constant literals are declared. */
7681 36982 : M2GCCDeclare_TryDeclareConstant (tokenno, left);
7682 36982 : M2GCCDeclare_TryDeclareConstant (tokenno, right);
7683 36982 : if ((SymbolTable_IsConst (left)) && (SymbolTable_IsConst (right)))
7684 : {
7685 1988 : if ((SymbolTable_IsValueSolved (left)) && (SymbolTable_IsValueSolved (right)))
7686 : {
7687 : /* We can take advantage of the known values and evaluate the condition. */
7688 1988 : SymbolTable_PushValue (left);
7689 1988 : SymbolTable_PushValue (right);
7690 1988 : if (M2ALU_Less (tokenno))
7691 : {
7692 958 : M2Quads_PutQuad (quad, M2Quads_GotoOp, SymbolTable_NulSym, SymbolTable_NulSym, destQuad);
7693 : }
7694 : else
7695 : {
7696 1030 : M2Quads_SubQuad (quad);
7697 : }
7698 1988 : NoChange = false;
7699 : }
7700 : }
7701 36982 : }
7702 :
7703 :
7704 : /*
7705 : FoldIfGre - check to see if it is possible to evaluate
7706 : if op1 > op2 then goto op3.
7707 : */
7708 :
7709 28024 : static void FoldIfGre (unsigned int tokenno, unsigned int quad, unsigned int left, unsigned int right, unsigned int destQuad)
7710 : {
7711 : /* Firstly ensure that constant literals are declared. */
7712 28024 : M2GCCDeclare_TryDeclareConstant (tokenno, left);
7713 28024 : M2GCCDeclare_TryDeclareConstant (tokenno, right);
7714 28024 : if ((SymbolTable_IsConst (left)) && (SymbolTable_IsConst (right)))
7715 : {
7716 72 : if ((SymbolTable_IsValueSolved (left)) && (SymbolTable_IsValueSolved (right)))
7717 : {
7718 : /* We can take advantage of the known values and evaluate the condition. */
7719 72 : SymbolTable_PushValue (left);
7720 72 : SymbolTable_PushValue (right);
7721 72 : if (M2ALU_Gre (tokenno))
7722 : {
7723 12 : M2Quads_PutQuad (quad, M2Quads_GotoOp, SymbolTable_NulSym, SymbolTable_NulSym, destQuad);
7724 : }
7725 : else
7726 : {
7727 60 : M2Quads_SubQuad (quad);
7728 : }
7729 72 : NoChange = false;
7730 : }
7731 : }
7732 28024 : }
7733 :
7734 :
7735 : /*
7736 : FoldIfLessEqu - check to see if it is possible to evaluate
7737 : if op1 <= op2 then goto op3.
7738 : */
7739 :
7740 30992 : static void FoldIfLessEqu (unsigned int tokenno, unsigned int quad, unsigned int left, unsigned int right, unsigned int destQuad)
7741 : {
7742 : /* Firstly ensure that constant literals are declared. */
7743 30992 : M2GCCDeclare_TryDeclareConstant (tokenno, left);
7744 30992 : M2GCCDeclare_TryDeclareConstant (tokenno, right);
7745 30992 : if ((SymbolTable_IsConst (left)) && (SymbolTable_IsConst (right)))
7746 : {
7747 42 : if ((SymbolTable_IsValueSolved (left)) && (SymbolTable_IsValueSolved (right)))
7748 : {
7749 : /* We can take advantage of the known values and evaluate the condition. */
7750 42 : SymbolTable_PushValue (left);
7751 42 : SymbolTable_PushValue (right);
7752 42 : if (M2ALU_LessEqu (tokenno))
7753 : {
7754 36 : M2Quads_PutQuad (quad, M2Quads_GotoOp, SymbolTable_NulSym, SymbolTable_NulSym, destQuad);
7755 : }
7756 : else
7757 : {
7758 6 : M2Quads_SubQuad (quad);
7759 : }
7760 42 : NoChange = false;
7761 : }
7762 : }
7763 30992 : }
7764 :
7765 :
7766 : /*
7767 : FoldIfGreEqu - check to see if it is possible to evaluate
7768 : if op1 >= op2 then goto op3.
7769 : */
7770 :
7771 47074 : static void FoldIfGreEqu (unsigned int tokenno, unsigned int quad, unsigned int left, unsigned int right, unsigned int destQuad)
7772 : {
7773 : /* Firstly ensure that constant literals are declared. */
7774 47074 : M2GCCDeclare_TryDeclareConstant (tokenno, left);
7775 47074 : M2GCCDeclare_TryDeclareConstant (tokenno, right);
7776 47074 : if ((SymbolTable_IsConst (left)) && (SymbolTable_IsConst (right)))
7777 : {
7778 8134 : if ((SymbolTable_IsValueSolved (left)) && (SymbolTable_IsValueSolved (right)))
7779 : {
7780 : /* We can take advantage of the known values and evaluate the condition. */
7781 3820 : SymbolTable_PushValue (left);
7782 3820 : SymbolTable_PushValue (right);
7783 3820 : if (M2ALU_GreEqu (tokenno))
7784 : {
7785 3004 : M2Quads_PutQuad (quad, M2Quads_GotoOp, SymbolTable_NulSym, SymbolTable_NulSym, destQuad);
7786 : }
7787 : else
7788 : {
7789 816 : M2Quads_SubQuad (quad);
7790 : }
7791 3820 : NoChange = false;
7792 : }
7793 : }
7794 47074 : }
7795 :
7796 :
7797 : /*
7798 : FoldIfIn - check whether we can fold the IfInOp
7799 : if op1 in op2 then goto op3
7800 : */
7801 :
7802 53404 : static void FoldIfIn (unsigned int tokenno, unsigned int quad, unsigned int left, unsigned int right, unsigned int destQuad)
7803 : {
7804 : /* Firstly ensure that constant literals are declared. */
7805 53404 : M2GCCDeclare_TryDeclareConstant (tokenno, left);
7806 53404 : M2GCCDeclare_TryDeclareConstant (tokenno, right);
7807 53404 : if ((SymbolTable_IsConst (left)) && (SymbolTable_IsConst (right)))
7808 : {
7809 0 : if ((SymbolTable_IsValueSolved (left)) && (SymbolTable_IsValueSolved (right)))
7810 : {
7811 0 : if (CheckBinaryExpressionTypes (quad, (M2GCCDeclare_WalkAction) {(M2GCCDeclare_WalkAction_t) NoWalkProcedure}))
7812 : {
7813 : /* We can take advantage of the known values and evaluate the condition. */
7814 0 : SymbolTable_PushValue (right);
7815 0 : if (M2ALU_SetIn (tokenno, left))
7816 : {
7817 0 : M2Quads_PutQuad (quad, M2Quads_GotoOp, SymbolTable_NulSym, SymbolTable_NulSym, destQuad);
7818 : }
7819 : else
7820 : {
7821 0 : M2Quads_SubQuad (quad);
7822 : }
7823 : }
7824 : else
7825 : {
7826 0 : M2Quads_SubQuad (quad);
7827 : }
7828 0 : NoChange = false;
7829 : }
7830 : }
7831 53404 : }
7832 :
7833 :
7834 : /*
7835 : FoldIfNotIn - check whether we can fold the IfNotInOp
7836 : if not (op1 in op2) then goto op3
7837 : */
7838 :
7839 9056 : static void FoldIfNotIn (unsigned int tokenno, unsigned int quad, unsigned int left, unsigned int right, unsigned int destQuad)
7840 : {
7841 : /* Firstly ensure that constant literals are declared. */
7842 9056 : M2GCCDeclare_TryDeclareConstant (tokenno, left);
7843 9056 : M2GCCDeclare_TryDeclareConstant (tokenno, right);
7844 9056 : if ((SymbolTable_IsConst (left)) && (SymbolTable_IsConst (right)))
7845 : {
7846 0 : if ((SymbolTable_IsValueSolved (left)) && (SymbolTable_IsValueSolved (right)))
7847 : {
7848 0 : if (CheckBinaryExpressionTypes (quad, (M2GCCDeclare_WalkAction) {(M2GCCDeclare_WalkAction_t) NoWalkProcedure}))
7849 : {
7850 : /* We can take advantage of the known values and evaluate the
7851 : condition. */
7852 0 : SymbolTable_PushValue (right);
7853 0 : if (! (M2ALU_SetIn (tokenno, left)))
7854 : {
7855 0 : M2Quads_PutQuad (quad, M2Quads_GotoOp, SymbolTable_NulSym, SymbolTable_NulSym, destQuad);
7856 : }
7857 : else
7858 : {
7859 0 : M2Quads_SubQuad (quad);
7860 : }
7861 : }
7862 : else
7863 : {
7864 0 : M2Quads_SubQuad (quad);
7865 : }
7866 0 : NoChange = false;
7867 : }
7868 : }
7869 9056 : }
7870 :
7871 :
7872 : /*
7873 : FoldIfEqu - check to see if it is possible to evaluate
7874 : if op1 = op2 then goto op3.
7875 : */
7876 :
7877 680761 : static void FoldIfEqu (unsigned int tokenno, unsigned int quad, unsigned int left, unsigned int right, unsigned int destQuad)
7878 : {
7879 : /* Firstly ensure that constant literals are declared. */
7880 680761 : M2GCCDeclare_TryDeclareConstant (tokenno, left);
7881 680761 : M2GCCDeclare_TryDeclareConstant (tokenno, right);
7882 680761 : if ((SymbolTable_IsConst (left)) && (SymbolTable_IsConst (right)))
7883 : {
7884 1202 : if ((SymbolTable_IsValueSolved (left)) && (SymbolTable_IsValueSolved (right)))
7885 : {
7886 : /* We can take advantage of the known values and evaluate the
7887 : condition. */
7888 722 : SymbolTable_PushValue (left);
7889 722 : SymbolTable_PushValue (right);
7890 722 : if (M2ALU_Equ (tokenno))
7891 : {
7892 392 : M2Quads_PutQuad (quad, M2Quads_GotoOp, SymbolTable_NulSym, SymbolTable_NulSym, destQuad);
7893 : }
7894 : else
7895 : {
7896 330 : M2Quads_SubQuad (quad);
7897 : }
7898 722 : NoChange = false;
7899 : }
7900 : }
7901 680761 : }
7902 :
7903 :
7904 : /*
7905 : FoldIfNotEqu - check to see if it is possible to evaluate
7906 : if op1 # op2 then goto op3.
7907 : */
7908 :
7909 336237 : static void FoldIfNotEqu (unsigned int tokenno, unsigned int quad, unsigned int left, unsigned int right, unsigned int destQuad)
7910 : {
7911 : /* Firstly ensure that constant literals are declared. */
7912 336237 : M2GCCDeclare_TryDeclareConstant (tokenno, left);
7913 336237 : M2GCCDeclare_TryDeclareConstant (tokenno, right);
7914 336237 : if ((SymbolTable_IsConst (left)) && (SymbolTable_IsConst (right)))
7915 : {
7916 3564 : if ((SymbolTable_IsValueSolved (left)) && (SymbolTable_IsValueSolved (right)))
7917 : {
7918 : /* We can take advantage of the known values and evaluate the
7919 : condition. */
7920 3498 : SymbolTable_PushValue (left);
7921 3498 : SymbolTable_PushValue (right);
7922 3498 : if (M2ALU_NotEqu (tokenno))
7923 : {
7924 2654 : M2Quads_PutQuad (quad, M2Quads_GotoOp, SymbolTable_NulSym, SymbolTable_NulSym, destQuad);
7925 : }
7926 : else
7927 : {
7928 844 : M2Quads_SubQuad (quad);
7929 : }
7930 3498 : NoChange = false;
7931 : }
7932 : }
7933 336237 : }
7934 :
7935 :
7936 : /*
7937 : GetSetLimits - assigns low and high to the limits of the declared, set.
7938 : */
7939 :
7940 5838 : static void GetSetLimits (unsigned int set, unsigned int *low, unsigned int *high)
7941 : {
7942 5838 : unsigned int type;
7943 :
7944 5838 : type = SymbolTable_GetType (set);
7945 5838 : if (SymbolTable_IsSubrange (type))
7946 : {
7947 4602 : SymbolTable_GetSubrange (type, high, low);
7948 : }
7949 : else
7950 : {
7951 1236 : (*low) = M2GCCDeclare_GetTypeMin (type);
7952 1236 : (*high) = M2GCCDeclare_GetTypeMax (type);
7953 : }
7954 5838 : }
7955 :
7956 :
7957 : /*
7958 : IsElementInRange - returns TRUE if expr references a bit in setvar
7959 : which is in the range [low..high]. If expr is a
7960 : variable it returns TRUE. FALSE is returned if we
7961 : know expr to be out of bounds.
7962 : */
7963 :
7964 4214 : static bool IsElementInRange (unsigned int tokenno, unsigned int settype, unsigned int setvar, unsigned int expr)
7965 : {
7966 4214 : unsigned int low;
7967 4214 : unsigned int high;
7968 :
7969 4214 : if (SymbolTable_IsConst (expr))
7970 : {
7971 1630 : GetSetLimits (settype, &low, &high);
7972 1630 : SymbolTable_PushValue (expr);
7973 1630 : SymbolTable_PushValue (high);
7974 1630 : if (M2ALU_Gre (tokenno))
7975 : {
7976 0 : M2MetaError_MetaErrorT1 (tokenno, (const char *) "bit exceeds the range of set {%1Eatd}", 37, setvar);
7977 0 : return false;
7978 : }
7979 1630 : SymbolTable_PushValue (expr);
7980 1630 : SymbolTable_PushValue (low);
7981 1630 : if (M2ALU_Less (tokenno))
7982 : {
7983 6 : M2MetaError_MetaErrorT1 (tokenno, (const char *) "bit underflows the range of set {%1Eatd}", 40, setvar);
7984 6 : return false;
7985 : }
7986 : }
7987 : return true;
7988 : /* static analysis guarentees a RETURN statement will be used before here. */
7989 : __builtin_unreachable ();
7990 : }
7991 :
7992 :
7993 : /*
7994 : SetElementToBit -
7995 : */
7996 :
7997 4208 : static tree SetElementToBit (location_t location, unsigned int settype, unsigned int expr)
7998 : {
7999 4208 : unsigned int lowelement;
8000 4208 : unsigned int highelement;
8001 4208 : tree low;
8002 :
8003 4208 : GetSetLimits (settype, &lowelement, &highelement);
8004 4208 : SymbolTable_PushValue (lowelement);
8005 4208 : low = M2ALU_PopIntegerTree ();
8006 4208 : return m2expr_BuildSub (location, m2convert_ToCardinal (location, SymbolConversion_Mod2Gcc (expr)), m2convert_ToCardinal (location, low), false);
8007 : /* static analysis guarentees a RETURN statement will be used before here. */
8008 : __builtin_unreachable ();
8009 : }
8010 :
8011 :
8012 : /*
8013 : CodeNarrowIncl - result |= (1 << expr).
8014 : */
8015 :
8016 812 : static void CodeNarrowIncl (location_t location, unsigned int settype, unsigned int result, unsigned int expr)
8017 : {
8018 812 : tree bit;
8019 812 : bool isLvalue;
8020 :
8021 812 : bit = SetElementToBit (location, settype, expr);
8022 812 : isLvalue = (SymbolTable_GetMode (result)) == SymbolTable_LeftValue;
8023 812 : m2statement_BuildAssignmentStatement (location, getrvalue (location, result, settype, isLvalue), m2convert_ToBitset (location, m2expr_BuildLogicalOr (location, getrvalue (location, result, settype, isLvalue), m2expr_BuildLSL (location, m2expr_GetWordOne (location), bit, false))));
8024 812 : }
8025 :
8026 :
8027 : /*
8028 : CodeNarrowExcl - result &= (~ (1 << expr)).
8029 : */
8030 :
8031 556 : static void CodeNarrowExcl (location_t location, unsigned int settype, unsigned int result, unsigned int expr)
8032 : {
8033 556 : tree bit;
8034 556 : tree mask;
8035 556 : bool isLvalue;
8036 :
8037 556 : bit = SetElementToBit (location, settype, expr);
8038 556 : mask = m2expr_BuildSetNegate (location, m2expr_BuildLSL (location, m2expr_GetWordOne (location), m2convert_ToWord (location, bit), false));
8039 556 : isLvalue = (SymbolTable_GetMode (result)) == SymbolTable_LeftValue;
8040 556 : m2statement_BuildAssignmentStatement (location, getrvalue (location, result, settype, isLvalue), m2convert_ToBitset (location, m2expr_BuildLogicalAnd (location, getrvalue (location, result, settype, isLvalue), mask)));
8041 556 : }
8042 :
8043 :
8044 : /*
8045 : SetWideUnaryBuiltinIncl -
8046 : */
8047 :
8048 128 : static void SetWideUnaryBuiltinIncl (location_t location, tree dest, tree bitno)
8049 : {
8050 128 : m2statement_BuildAssignmentStatement (location, dest, m2convert_BuildConvert (location, SymbolConversion_Mod2Gcc (M2System_Byte), m2expr_BuildLogicalOr (location, dest, m2expr_BuildLSL (location, m2expr_GetWordOne (location), bitno, false)), false));
8051 128 : }
8052 :
8053 :
8054 : /*
8055 : SetWideUnaryBuiltinExcl -
8056 : */
8057 :
8058 80 : static void SetWideUnaryBuiltinExcl (location_t location, tree dest, tree bitno)
8059 : {
8060 80 : tree mask;
8061 :
8062 80 : mask = m2expr_BuildSetNegate (location, m2expr_BuildLSL (location, m2expr_GetWordOne (location), m2convert_ToWord (location, bitno), false));
8063 80 : m2statement_BuildAssignmentStatement (location, dest, m2convert_BuildConvert (location, SymbolConversion_Mod2Gcc (M2System_Byte), m2expr_BuildLogicalAnd (location, dest, mask), false));
8064 80 : }
8065 :
8066 208 : static void SetWideUnaryBuiltinInclExcl (unsigned int tokenno, unsigned int settype, unsigned int des, unsigned int expr, bool incl)
8067 : {
8068 208 : tree bitsperbyte;
8069 208 : tree byteno;
8070 208 : tree bitno;
8071 208 : tree dest;
8072 208 : tree bit;
8073 208 : location_t location;
8074 :
8075 : /*
8076 : SetWideUnaryBuiltinIncl -
8077 : */
8078 208 : location = M2LexBuf_TokenToLocation (tokenno);
8079 208 : bit = m2convert_ToCardinal (location, SetElementToBit (location, settype, expr));
8080 208 : bitsperbyte = m2convert_ToCardinal (location, m2expr_GetSizeOfInBits (SymbolConversion_Mod2Gcc (M2System_Byte)));
8081 208 : byteno = m2expr_BuildDivFloor (location, bit, bitsperbyte, false);
8082 208 : bitno = m2expr_BuildModFloor (location, bit, bitsperbyte, false);
8083 208 : dest = m2expr_BuildArray (location, SymbolConversion_Mod2Gcc (M2System_Byte), getrvalue (location, des, SymbolTable_GetType (des), (SymbolTable_GetMode (des)) == SymbolTable_LeftValue), byteno, m2expr_GetIntegerZero (location));
8084 208 : if (incl)
8085 : {
8086 128 : SetWideUnaryBuiltinIncl (location, dest, bitno);
8087 : }
8088 : else
8089 : {
8090 80 : SetWideUnaryBuiltinExcl (location, dest, bitno);
8091 : }
8092 208 : }
8093 :
8094 :
8095 : /*
8096 : SetWideInclExcl - generates M2WIDESET.procedurename (result, expr).
8097 : */
8098 :
8099 528 : static void SetWideInclExcl (unsigned int tokenno, unsigned int settype, unsigned int result, unsigned int expr, NameKey_Name procedurename)
8100 : {
8101 528 : if (M2Options_OptimizeSets)
8102 : {
8103 208 : if (procedurename == (NameKey_MakeKey ((const char *) "Incl", 4)))
8104 : {
8105 128 : SetWideUnaryBuiltinInclExcl (tokenno, settype, result, expr, true);
8106 : }
8107 80 : else if (procedurename == (NameKey_MakeKey ((const char *) "Excl", 4)))
8108 : {
8109 : /* avoid dangling else. */
8110 80 : SetWideUnaryBuiltinInclExcl (tokenno, settype, result, expr, false);
8111 : }
8112 : else
8113 : {
8114 : /* avoid dangling else. */
8115 0 : M2Error_InternalError ((const char *) "expecting Incl or Excl procedure", 32);
8116 : }
8117 : }
8118 : else
8119 : {
8120 320 : SetWideInclExclLibrary (tokenno, settype, result, expr, procedurename);
8121 : }
8122 528 : }
8123 :
8124 :
8125 : /*
8126 : SetWideInclExclLibrary -
8127 : */
8128 :
8129 320 : static void SetWideInclExclLibrary (unsigned int tokenno, unsigned int settype, unsigned int result, unsigned int expr, NameKey_Name procedurename)
8130 : {
8131 320 : location_t location;
8132 320 : unsigned int procedure;
8133 320 : unsigned int setparam;
8134 320 : tree highbit;
8135 320 : tree bit;
8136 320 : tree setarray;
8137 320 : tree call;
8138 :
8139 320 : procedure = FromM2WIDESETImport (tokenno, procedurename);
8140 320 : location = M2LexBuf_TokenToLocation (tokenno);
8141 320 : bit = SetElementToBit (location, settype, expr);
8142 320 : highbit = m2convert_ToCardinal (location, CalcBitsInSet (location, settype));
8143 320 : setparam = SymbolTable_GetNthParamAnyClosest (procedure, 1, SymbolTable_GetMainModule ());
8144 320 : setarray = CreateSetArrayParam (location, tokenno, result, setparam);
8145 320 : m2statement_BuildParam (location, highbit); /* 3rd Parameter. */
8146 320 : m2statement_BuildParam (location, m2convert_ToCardinal (location, bit)); /* 2nd Parameter. */
8147 320 : m2statement_BuildParam (location, setarray); /* 1st Parameter. */
8148 320 : call = m2statement_BuildProcedureCallTree (location, SymbolConversion_Mod2Gcc (procedure), NULL); /* 1st Parameter. */
8149 320 : m2statement_SetLastFunction (NULL);
8150 320 : m2type_AddStatement (location, call);
8151 320 : }
8152 :
8153 :
8154 : /*
8155 : CodeIncl - encode an InclOp:
8156 : result |= (1 << expr).
8157 : */
8158 :
8159 1142 : static void CodeIncl (unsigned int quad)
8160 : {
8161 1142 : bool overflow;
8162 1142 : bool constExpr;
8163 1142 : M2Quads_QuadOperator op;
8164 1142 : unsigned int tokenno;
8165 1142 : unsigned int result;
8166 1142 : unsigned int expr;
8167 1142 : unsigned int settype;
8168 1142 : unsigned int nooperand;
8169 1142 : unsigned int nopos;
8170 1142 : location_t location;
8171 :
8172 1142 : M2Quads_GetQuadOtok (quad, &tokenno, &op, &result, &nooperand, &expr, &overflow, &constExpr, &nopos, &nopos, &nopos);
8173 : /* Firstly ensure that constant literals are declared */
8174 1142 : M2GCCDeclare_DeclareConstant (tokenno, expr);
8175 1142 : location = M2LexBuf_TokenToLocation (tokenno);
8176 1142 : checkDeclare (result);
8177 1142 : settype = SymbolTable_GetLType (result);
8178 1142 : M2Debug_Assert (SymbolTable_IsSet (settype));
8179 1142 : if (SymbolTable_IsConst (result))
8180 : {
8181 0 : if (SymbolTable_IsConst (expr))
8182 : {
8183 0 : M2Error_InternalError ((const char *) "this quadruple should have been removed by FoldIncl", 51);
8184 : }
8185 : else
8186 : {
8187 0 : M2Error_InternalError ((const char *) "should not get to here (why are we generating <incl const, var> ?)", 66);
8188 : }
8189 : }
8190 : else
8191 : {
8192 1142 : if (IsElementInRange (tokenno, settype, result, expr))
8193 : {
8194 : /* avoid gcc warning by using compound statement even if not strictly necessary. */
8195 1142 : if (SymbolTable_GetSetInWord (settype))
8196 : {
8197 812 : CodeNarrowIncl (location, settype, result, expr);
8198 : }
8199 : else
8200 : {
8201 330 : SetWideInclExcl (tokenno, settype, result, expr, NameKey_MakeKey ((const char *) "Incl", 4));
8202 : }
8203 : }
8204 : }
8205 1142 : }
8206 :
8207 :
8208 : /*
8209 : FoldExcl - check whether we can fold the InclOp.
8210 : result &= ~ (1 << expr).
8211 : */
8212 :
8213 15538 : static void FoldExcl (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int result, unsigned int expr)
8214 : {
8215 : /* Firstly ensure that constant literals are declared */
8216 15538 : M2GCCDeclare_TryDeclareConstant (tokenno, expr);
8217 15538 : if ((SymbolTable_IsConst (result)) && (SymbolTable_IsConst (expr)))
8218 : {
8219 0 : if ((SymbolConversion_GccKnowsAbout (expr)) && (SymbolTable_IsValueSolved (result)))
8220 : {
8221 0 : SymbolTable_PushValue (result);
8222 0 : M2ALU_SubBit (tokenno, expr);
8223 0 : SymbolConversion_AddModGcc (result, M2ALU_PopSetTree (tokenno));
8224 0 : (*p.proc) (result);
8225 0 : NoChange = false;
8226 0 : M2Quads_SubQuad (quad);
8227 : }
8228 : }
8229 15538 : }
8230 :
8231 :
8232 : /*
8233 : CodeExcl - encode an ExclOp:
8234 : result &= (~ (1 << expr)).
8235 : */
8236 :
8237 754 : static void CodeExcl (unsigned int quad)
8238 : {
8239 754 : bool overflow;
8240 754 : bool constExpr;
8241 754 : M2Quads_QuadOperator op;
8242 754 : unsigned int tokenno;
8243 754 : unsigned int result;
8244 754 : unsigned int expr;
8245 754 : unsigned int settype;
8246 754 : unsigned int nooperand;
8247 754 : unsigned int nopos;
8248 754 : location_t location;
8249 :
8250 754 : M2Quads_GetQuadOtok (quad, &tokenno, &op, &result, &nooperand, &expr, &overflow, &constExpr, &nopos, &nopos, &nopos);
8251 : /* Firstly ensure that constant literals are declared */
8252 754 : M2GCCDeclare_DeclareConstant (tokenno, expr);
8253 754 : location = M2LexBuf_TokenToLocation (tokenno);
8254 754 : checkDeclare (result);
8255 754 : settype = SymbolTable_GetLType (result);
8256 754 : M2Debug_Assert (SymbolTable_IsSet (settype));
8257 754 : if (SymbolTable_IsConst (result))
8258 : {
8259 0 : if (SymbolTable_IsConst (expr))
8260 : {
8261 0 : M2Error_InternalError ((const char *) "this quadruple should have been removed by FoldExcl", 51);
8262 : }
8263 : else
8264 : {
8265 0 : M2Error_InternalError ((const char *) "should not get to here (why are we generating <excl const, var> ?)", 66);
8266 : }
8267 : }
8268 : else
8269 : {
8270 754 : if (IsElementInRange (tokenno, settype, result, expr))
8271 : {
8272 : /* avoid gcc warning by using compound statement even if not strictly necessary. */
8273 754 : if (SymbolTable_GetSetInWord (settype))
8274 : {
8275 556 : CodeNarrowExcl (location, settype, result, expr);
8276 : }
8277 : else
8278 : {
8279 198 : SetWideInclExcl (tokenno, settype, result, expr, NameKey_MakeKey ((const char *) "Excl", 4));
8280 : }
8281 : }
8282 : }
8283 754 : }
8284 :
8285 :
8286 : /*
8287 : FoldUnary - check whether we can fold the unop operation.
8288 : */
8289 :
8290 39049 : static void FoldUnary (unsigned int tokenno, M2GCCDeclare_WalkAction p, m2expr_BuildUnaryProcedure unop, tree ZConstToTypedConst, unsigned int quad, unsigned int result, unsigned int expr)
8291 : {
8292 39049 : tree tv;
8293 39049 : location_t location;
8294 :
8295 : /* firstly ensure that any constant literal is declared */
8296 39049 : M2GCCDeclare_TryDeclareConstant (tokenno, expr);
8297 39049 : location = M2LexBuf_TokenToLocation (tokenno);
8298 39049 : if (SymbolTable_IsConst (expr))
8299 : {
8300 18813 : if (SymbolConversion_GccKnowsAbout (expr))
8301 : {
8302 : /* avoid gcc warning by using compound statement even if not strictly necessary. */
8303 : /* fine, we can take advantage of this and fold constants */
8304 18813 : if (SymbolTable_IsConst (result))
8305 : {
8306 18813 : if (ZConstToTypedConst == ((tree) (NULL)))
8307 : {
8308 : /* avoid gcc warning by using compound statement even if not strictly necessary. */
8309 18813 : if (((SymbolTable_GetType (expr)) == SymbolTable_NulSym) || (M2Base_IsOrdinalType (SymbolTable_SkipType (SymbolTable_GetType (expr)))))
8310 : {
8311 18369 : ZConstToTypedConst = m2type_GetM2ZType ();
8312 : }
8313 444 : else if ((M2Base_IsRealType (SymbolTable_SkipType (SymbolTable_GetType (expr)))) || (M2System_IsRealN (SymbolTable_SkipType (SymbolTable_GetType (expr)))))
8314 : {
8315 : /* avoid dangling else. */
8316 264 : ZConstToTypedConst = m2type_GetM2RType ();
8317 : }
8318 180 : else if ((M2Base_IsComplexType (SymbolTable_SkipType (SymbolTable_GetType (expr)))) || (M2System_IsComplexN (SymbolTable_SkipType (SymbolTable_GetType (expr)))))
8319 : {
8320 : /* avoid dangling else. */
8321 180 : ZConstToTypedConst = m2type_GetM2CType ();
8322 : }
8323 : }
8324 18813 : if ((SymbolTable_GetType (result)) == SymbolTable_NulSym)
8325 : {
8326 0 : SymbolTable_PutConst (result, M2Base_NegateType (SymbolTable_GetType (expr))); /* , tokenno */
8327 : }
8328 18813 : tv = (*unop.proc) (location, LValueToGenericPtrOrConvert (expr, ZConstToTypedConst), false);
8329 18813 : M2ALU_CheckOrResetOverflow (tokenno, tv, M2Quads_MustCheckOverflow (quad));
8330 18813 : SymbolConversion_AddModGcc (result, m2decl_DeclareKnownConstant (location, ZConstToTypedConst, tv));
8331 18813 : (*p.proc) (result);
8332 18813 : NoChange = false;
8333 18813 : M2Quads_SubQuad (quad);
8334 : }
8335 : /* we can still fold the expression, but not the assignment, however, we will
8336 : not do this here but in CodeUnary
8337 : */
8338 : }
8339 : }
8340 39049 : }
8341 :
8342 :
8343 : /*
8344 : FoldUnarySet - check whether we can fold the doOp operation.
8345 : */
8346 :
8347 60 : static void FoldUnarySet (unsigned int tokenno, M2GCCDeclare_WalkAction p, M2GenGCC_ProcedureCardinal doOp, unsigned int quad, unsigned int result, unsigned int expr)
8348 : {
8349 60 : location_t location;
8350 :
8351 : /* firstly try and ensure that constants are declared */
8352 60 : M2GCCDeclare_TryDeclareConstant (tokenno, expr);
8353 60 : location = M2LexBuf_TokenToLocation (tokenno);
8354 60 : if (((SymbolTable_IsConst (expr)) && (SymbolTable_IsConstSet (expr))) && (SymbolTable_IsConst (result)))
8355 : {
8356 60 : if ((SymbolTable_IsValueSolved (expr)) && ((SymbolTable_GetType (expr)) != SymbolTable_NulSym))
8357 : {
8358 60 : SymbolTable_PutConst (result, FindType (expr));
8359 60 : SymbolTable_PushValue (expr);
8360 60 : (*doOp.proc) (tokenno);
8361 60 : SymbolTable_PopValue (result);
8362 60 : SymbolTable_PushValue (result);
8363 60 : SymbolTable_PutConstSet (result);
8364 60 : SymbolConversion_AddModGcc (result, m2decl_DeclareKnownConstant (location, SymbolConversion_Mod2Gcc (SymbolTable_GetType (expr)), M2ALU_PopSetTree (tokenno)));
8365 60 : (*p.proc) (result);
8366 60 : NoChange = false;
8367 60 : M2Quads_SubQuad (quad);
8368 : }
8369 : }
8370 60 : }
8371 :
8372 :
8373 : /*
8374 : CodeUnaryCheck - encode a unary arithmetic operation.
8375 : */
8376 :
8377 912 : static void CodeUnaryCheck (m2expr_BuildUnaryCheckProcedure unop, tree ZConstToTypedConst, unsigned int quad, unsigned int result, unsigned int expr)
8378 : {
8379 912 : unsigned int lowestType;
8380 912 : tree min;
8381 912 : tree max;
8382 912 : tree lowest;
8383 912 : tree tv;
8384 912 : location_t location;
8385 :
8386 : /* firstly ensure that any constant literal is declared */
8387 912 : M2GCCDeclare_DeclareConstant (CurrentQuadToken, expr);
8388 912 : M2GCCDeclare_DeclareConstructor (CurrentQuadToken, quad, expr);
8389 912 : location = M2LexBuf_TokenToLocation (CurrentQuadToken);
8390 912 : lowestType = SymbolTable_GetLType (result);
8391 912 : if (lowestType == SymbolTable_NulSym)
8392 : {
8393 : lowest = NULL;
8394 : }
8395 : else
8396 : {
8397 912 : lowest = SymbolConversion_Mod2Gcc (lowestType);
8398 : }
8399 912 : if (M2Range_GetMinMax (CurrentQuadToken, lowestType, &min, &max))
8400 : {
8401 848 : tv = (*unop.proc) (location, M2GenGCC_LValueToGenericPtr (location, expr), lowest, min, max);
8402 : }
8403 : else
8404 : {
8405 64 : tv = (*unop.proc) (location, M2GenGCC_LValueToGenericPtr (location, expr), NULL, NULL, NULL);
8406 : }
8407 912 : M2ALU_CheckOrResetOverflow (CurrentQuadToken, tv, M2Quads_MustCheckOverflow (quad));
8408 912 : if (SymbolTable_IsConst (result))
8409 : {
8410 0 : if (ZConstToTypedConst == ((tree) (NULL)))
8411 : {
8412 0 : ZConstToTypedConst = (tree) (SymbolConversion_Mod2Gcc (SymbolTable_GetType (expr)));
8413 : }
8414 : /* still have a constant which was not resolved, pass it to gcc */
8415 0 : SymbolTable_PutConst (result, FindType (expr));
8416 0 : M2GCCDeclare_ConstantKnownAndUsed (result, m2decl_DeclareKnownConstant (location, ZConstToTypedConst, tv));
8417 : }
8418 : else
8419 : {
8420 912 : if (M2SSA_EnableSSA && (SymbolTable_IsVariableSSA (result)))
8421 : {
8422 : Replace (result, tv);
8423 : }
8424 : else
8425 : {
8426 912 : m2statement_BuildAssignmentStatement (location, SymbolConversion_Mod2Gcc (result), tv);
8427 : }
8428 : }
8429 912 : }
8430 :
8431 :
8432 : /*
8433 : CodeUnary - encode a unary arithmetic operation.
8434 : */
8435 :
8436 0 : static void CodeUnary (m2expr_BuildUnaryProcedure unop, tree ZConstToTypedConst, unsigned int quad, unsigned int result, unsigned int expr)
8437 : {
8438 0 : tree tv;
8439 0 : location_t location;
8440 :
8441 : /* firstly ensure that any constant literal is declared */
8442 0 : M2GCCDeclare_DeclareConstant (CurrentQuadToken, expr);
8443 0 : M2GCCDeclare_DeclareConstructor (CurrentQuadToken, quad, expr);
8444 0 : location = M2LexBuf_TokenToLocation (CurrentQuadToken);
8445 0 : tv = (*unop.proc) (location, M2GenGCC_LValueToGenericPtr (location, expr), false);
8446 0 : M2ALU_CheckOrResetOverflow (CurrentQuadToken, tv, M2Quads_MustCheckOverflow (quad));
8447 0 : if (SymbolTable_IsConst (result))
8448 : {
8449 0 : if (ZConstToTypedConst == ((tree) (NULL)))
8450 : {
8451 0 : ZConstToTypedConst = (tree) (SymbolConversion_Mod2Gcc (SymbolTable_GetType (expr)));
8452 : }
8453 : /* still have a constant which was not resolved, pass it to gcc */
8454 0 : SymbolTable_PutConst (result, FindType (expr));
8455 0 : M2GCCDeclare_ConstantKnownAndUsed (result, m2decl_DeclareKnownConstant (location, ZConstToTypedConst, tv));
8456 : }
8457 : else
8458 : {
8459 0 : if (M2SSA_EnableSSA && (SymbolTable_IsVariableSSA (result)))
8460 : {
8461 : Replace (result, tv);
8462 : }
8463 : else
8464 : {
8465 0 : m2statement_BuildAssignmentStatement (location, SymbolConversion_Mod2Gcc (result), tv);
8466 : }
8467 : }
8468 0 : }
8469 :
8470 :
8471 : /*
8472 : FoldNegate - check unary negate for constant folding.
8473 : */
8474 :
8475 39109 : static void FoldNegate (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int result, unsigned int expr)
8476 : {
8477 39109 : if (SymbolTable_IsConstSet (expr))
8478 : {
8479 60 : FoldUnarySet (tokenno, p, (M2GenGCC_ProcedureCardinal) {(M2GenGCC_ProcedureCardinal_t) M2ALU_SetNegate}, quad, result, expr);
8480 : }
8481 : else
8482 : {
8483 39049 : FoldUnary (tokenno, p, (m2expr_BuildUnaryProcedure) {(m2expr_BuildUnaryProcedure_t) m2expr_BuildNegate}, NULL, quad, result, expr);
8484 : }
8485 39109 : }
8486 :
8487 :
8488 : /*
8489 : CodeNegateChecked - code a negate instruction, determine whether checking
8490 : is required.
8491 : */
8492 :
8493 996 : static void CodeNegateChecked (unsigned int quad)
8494 : {
8495 996 : unsigned int operatorpos;
8496 996 : unsigned int resultpos;
8497 996 : unsigned int nopos;
8498 996 : unsigned int exprpos;
8499 996 : unsigned int result;
8500 996 : unsigned int noop;
8501 996 : unsigned int expr;
8502 996 : bool typeChecking;
8503 996 : bool constExpr;
8504 996 : bool overflowChecking;
8505 996 : M2Quads_QuadOperator op;
8506 :
8507 996 : M2Quads_GetQuadOTypetok (quad, &operatorpos, &op, &result, &noop, &expr, &overflowChecking, &typeChecking, &constExpr, &resultpos, &nopos, &exprpos);
8508 996 : if ((SymbolTable_IsConstSet (expr)) || (SymbolTable_IsSet (SymbolTable_GetType (expr))))
8509 : {
8510 78 : CodeUnarySet ((M2GenGCC_ProcedureCardinal) {(M2GenGCC_ProcedureCardinal_t) M2ALU_SetNegate}, (M2GenGCC_UnaryFunction) {(M2GenGCC_UnaryFunction_t) m2expr_BuildSetNegate}, operatorpos, NameKey_MakeKey ((const char *) "Not", 3), quad, result, expr);
8511 : }
8512 918 : else if (UnaryOperand (quad, expr))
8513 : {
8514 : /* avoid dangling else. */
8515 912 : if (M2Quads_MustCheckOverflow (quad))
8516 : {
8517 912 : CodeUnaryCheck ((m2expr_BuildUnaryCheckProcedure) {(m2expr_BuildUnaryCheckProcedure_t) m2expr_BuildNegateCheck}, NULL, quad, result, expr);
8518 : }
8519 : else
8520 : {
8521 0 : CodeUnary ((m2expr_BuildUnaryProcedure) {(m2expr_BuildUnaryProcedure_t) m2expr_BuildNegate}, NULL, quad, result, expr);
8522 : }
8523 : }
8524 996 : }
8525 :
8526 :
8527 : /*
8528 : FoldSize - check unary SIZE for constant folding.
8529 : */
8530 :
8531 7416 : static void FoldSize (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3)
8532 : {
8533 7416 : tree t;
8534 7416 : location_t location;
8535 :
8536 7416 : location = M2LexBuf_TokenToLocation (tokenno);
8537 7416 : if ((SymbolTable_IsConst (op1)) && (M2GCCDeclare_CompletelyResolved (op3)))
8538 : {
8539 : /* avoid gcc warning by using compound statement even if not strictly necessary. */
8540 6606 : if (op2 == SymbolTable_NulSym)
8541 : {
8542 6606 : t = m2expr_BuildSize (location, SymbolConversion_Mod2Gcc (op3), false);
8543 6606 : M2ALU_PushIntegerTree (t);
8544 6606 : SymbolTable_PopValue (op1);
8545 6606 : SymbolTable_PutConst (op1, M2Base_Cardinal);
8546 6606 : (*p.proc) (op1);
8547 6606 : NoChange = false;
8548 6606 : M2Quads_SubQuad (quad);
8549 6606 : t = m2block_RememberConstant (t);
8550 : }
8551 0 : else if (SymbolConversion_GccKnowsAbout (op2))
8552 : {
8553 : /* avoid dangling else. */
8554 : /* ignore the chosen varients as we implement it as a C union */
8555 0 : t = m2expr_BuildSize (location, SymbolConversion_Mod2Gcc (op3), false);
8556 0 : M2ALU_PushIntegerTree (t);
8557 0 : SymbolTable_PopValue (op1);
8558 0 : SymbolTable_PutConst (op1, M2Base_Cardinal);
8559 0 : (*p.proc) (op1);
8560 0 : NoChange = false;
8561 0 : M2Quads_SubQuad (quad);
8562 0 : t = m2block_RememberConstant (t);
8563 : }
8564 : }
8565 7416 : }
8566 :
8567 :
8568 : /*
8569 : CodeSize - encode the inbuilt SIZE function.
8570 : */
8571 :
8572 0 : static void CodeSize (unsigned int result, unsigned int sym)
8573 : {
8574 0 : location_t location;
8575 :
8576 0 : location = M2LexBuf_TokenToLocation (CurrentQuadToken);
8577 0 : M2ALU_PushIntegerTree (m2expr_BuildSize (location, SymbolConversion_Mod2Gcc (sym), false));
8578 0 : if (SymbolTable_IsConst (result))
8579 : {
8580 0 : SymbolTable_PopValue (result);
8581 0 : SymbolTable_PutConst (result, M2Base_Cardinal);
8582 0 : SymbolTable_PushValue (result);
8583 0 : M2GCCDeclare_ConstantKnownAndUsed (result, m2decl_DeclareKnownConstant (location, m2type_GetIntegerType (), M2ALU_PopIntegerTree ()));
8584 : }
8585 : else
8586 : {
8587 0 : m2statement_BuildAssignmentStatement (location, SymbolConversion_Mod2Gcc (result), M2ALU_PopIntegerTree ());
8588 : }
8589 0 : }
8590 :
8591 :
8592 : /*
8593 : FoldRecordField - check whether we can fold an RecordFieldOp quadruple.
8594 : Very similar to FoldBinary, except that we need to
8595 : hard code a few parameters to the gcc backend.
8596 : */
8597 :
8598 0 : static void FoldRecordField (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int result, unsigned int record, unsigned int field)
8599 : {
8600 0 : unsigned int recordType;
8601 0 : unsigned int fieldType;
8602 0 : tree ptr;
8603 0 : location_t location;
8604 :
8605 0 : return; /* this procedure should no longer be called */
8606 : location = M2LexBuf_TokenToLocation (tokenno);
8607 : /* firstly ensure that any constant literal is declared */
8608 : M2GCCDeclare_TryDeclareConstant (tokenno, record);
8609 : if ((SymbolTable_IsRecordField (record)) || (SymbolTable_IsFieldVarient (record)))
8610 : {
8611 : recordType = SymbolTable_GetType (record);
8612 : fieldType = SymbolTable_GetType (field);
8613 : if ((((((SymbolConversion_GccKnowsAbout (record)) && (SymbolConversion_GccKnowsAbout (field))) && (SymbolConversion_GccKnowsAbout (recordType))) && (SymbolConversion_GccKnowsAbout (fieldType))) && (M2GCCDeclare_CompletelyResolved (recordType))) && (M2GCCDeclare_CompletelyResolved (fieldType)))
8614 : {
8615 : /* avoid gcc warning by using compound statement even if not strictly necessary. */
8616 : /* fine, we can take advantage of this and fold constants */
8617 : if (SymbolTable_IsConst (result))
8618 : {
8619 : ptr = m2expr_BuildComponentRef (location, SymbolConversion_Mod2Gcc (record), SymbolConversion_Mod2Gcc (field));
8620 : if (! (SymbolTable_IsValueSolved (result)))
8621 : {
8622 : M2ALU_PushIntegerTree (ptr);
8623 : SymbolTable_PopValue (result);
8624 : }
8625 : SymbolTable_PutConst (result, fieldType);
8626 : SymbolConversion_AddModGcc (result, m2decl_DeclareKnownConstant (location, SymbolConversion_Mod2Gcc (fieldType), ptr));
8627 : (*p.proc) (result);
8628 : NoChange = false;
8629 : M2Quads_SubQuad (quad);
8630 : }
8631 : /* we can still fold the expression, but not the assignment, however, we will
8632 : not do this here but in CodeOffset
8633 : */
8634 : }
8635 : }
8636 : }
8637 :
8638 :
8639 : /*
8640 : CodeRecordField - encode a reference to a field within a record.
8641 : */
8642 :
8643 138682 : static void CodeRecordField (unsigned int result, unsigned int record, unsigned int field)
8644 : {
8645 138682 : unsigned int recordType;
8646 138682 : unsigned int fieldType;
8647 138682 : tree ptr;
8648 138682 : location_t location;
8649 :
8650 138682 : location = M2LexBuf_TokenToLocation (CurrentQuadToken);
8651 : /* firstly ensure that any constant literal is declared */
8652 138682 : if ((SymbolTable_IsRecordField (field)) || (SymbolTable_IsFieldVarient (field)))
8653 : {
8654 138682 : recordType = SymbolTable_GetType (record);
8655 138682 : fieldType = SymbolTable_GetType (field);
8656 138682 : if ((((((SymbolConversion_GccKnowsAbout (record)) && (SymbolConversion_GccKnowsAbout (field))) && (SymbolConversion_GccKnowsAbout (recordType))) && (SymbolConversion_GccKnowsAbout (fieldType))) && (M2GCCDeclare_CompletelyResolved (recordType))) && (M2GCCDeclare_CompletelyResolved (fieldType)))
8657 : {
8658 138682 : if ((SymbolTable_GetMode (record)) == SymbolTable_LeftValue)
8659 : {
8660 46810 : ptr = m2expr_BuildComponentRef (location, m2expr_BuildIndirect (location, SymbolConversion_Mod2Gcc (record), SymbolConversion_Mod2Gcc (recordType)), SymbolConversion_Mod2Gcc (field));
8661 : }
8662 : else
8663 : {
8664 91872 : ptr = m2expr_BuildComponentRef (location, SymbolConversion_Mod2Gcc (record), SymbolConversion_Mod2Gcc (field));
8665 : }
8666 138682 : SymbolConversion_AddModGcc (result, ptr);
8667 : }
8668 : else
8669 : {
8670 0 : M2Error_InternalError ((const char *) "symbol type should have been declared by now", 44);
8671 : }
8672 : }
8673 : else
8674 : {
8675 0 : M2Error_InternalError ((const char *) "not expecting this type of symbol", 33);
8676 : }
8677 138682 : }
8678 :
8679 :
8680 : /*
8681 : BuildHighFromChar -
8682 : */
8683 :
8684 51186 : static tree BuildHighFromChar (unsigned int operand)
8685 : {
8686 51186 : location_t location;
8687 :
8688 51186 : location = M2LexBuf_TokenToLocation (SymbolTable_GetDeclaredMod (operand));
8689 51186 : if ((SymbolTable_IsConstString (operand)) && ((SymbolTable_IsConstStringM2nul (operand)) || (SymbolTable_IsConstStringCnul (operand))))
8690 : {
8691 50118 : return m2expr_GetCardinalOne (location);
8692 : }
8693 1068 : return m2expr_GetCardinalZero (location);
8694 : /* static analysis guarentees a RETURN statement will be used before here. */
8695 : __builtin_unreachable ();
8696 : }
8697 :
8698 :
8699 : /*
8700 : SkipToArray -
8701 : */
8702 :
8703 20532 : static unsigned int SkipToArray (unsigned int operand, unsigned int dim)
8704 : {
8705 20532 : unsigned int type;
8706 :
8707 21180 : while (dim > 1)
8708 : {
8709 648 : type = SymbolTable_SkipType (SymbolTable_GetType (operand));
8710 648 : if (SymbolTable_IsArray (type))
8711 : {
8712 648 : operand = type;
8713 : }
8714 648 : dim -= 1;
8715 : }
8716 20532 : return operand;
8717 : /* static analysis guarentees a RETURN statement will be used before here. */
8718 : __builtin_unreachable ();
8719 : }
8720 :
8721 :
8722 : /*
8723 : BuildHighFromArray -
8724 : */
8725 :
8726 20532 : static tree BuildHighFromArray (unsigned int tokenno, unsigned int dim, unsigned int operand)
8727 : {
8728 20532 : unsigned int Type;
8729 20532 : location_t location;
8730 :
8731 20532 : location = M2LexBuf_TokenToLocation (tokenno);
8732 20532 : Type = SymbolTable_SkipType (SymbolTable_GetType (SkipToArray (operand, dim)));
8733 20532 : return BuildHighFromStaticArray (location, Type); /* dim, */
8734 : /* static analysis guarentees a RETURN statement will be used before here. */
8735 : __builtin_unreachable ();
8736 : }
8737 :
8738 :
8739 : /*
8740 : BuildHighFromSetArray -
8741 : */
8742 :
8743 3352 : static tree BuildHighFromSetArray (unsigned int tokenno, unsigned int settype)
8744 : {
8745 3352 : location_t location;
8746 :
8747 3352 : location = M2LexBuf_TokenToLocation (tokenno);
8748 3352 : return BuildHighFromStaticArray (location, SymbolTable_GetSetArray (settype));
8749 : /* static analysis guarentees a RETURN statement will be used before here. */
8750 : __builtin_unreachable ();
8751 : }
8752 :
8753 :
8754 : /*
8755 : BuildHighFromStaticArray -
8756 : */
8757 :
8758 23884 : static tree BuildHighFromStaticArray (location_t location, unsigned int Type)
8759 : {
8760 23884 : unsigned int High;
8761 23884 : unsigned int Low;
8762 23884 : unsigned int Subscript;
8763 23884 : unsigned int Subrange;
8764 :
8765 23884 : M2Debug_Assert (SymbolTable_IsArray (Type)); /* dim, */
8766 23884 : Subscript = SymbolTable_GetArraySubscript (Type);
8767 23884 : Subrange = SymbolTable_SkipType (SymbolTable_GetType (Subscript));
8768 23884 : if (SymbolTable_IsEnumeration (Subrange))
8769 : {
8770 : /* avoid dangling else. */
8771 96 : M2Base_GetBaseTypeMinMax (Subrange, &Low, &High);
8772 96 : if (SymbolConversion_GccKnowsAbout (High))
8773 : {
8774 96 : return (tree) (SymbolConversion_Mod2Gcc (High));
8775 : }
8776 : }
8777 23788 : else if (SymbolTable_IsSubrange (Subrange))
8778 : {
8779 : /* avoid dangling else. */
8780 23788 : SymbolTable_GetSubrange (Subrange, &High, &Low);
8781 23788 : if ((SymbolConversion_GccKnowsAbout (Low)) && (SymbolConversion_GccKnowsAbout (High)))
8782 : {
8783 23788 : return m2expr_BuildSub (location, SymbolConversion_Mod2Gcc (High), SymbolConversion_Mod2Gcc (Low), true);
8784 : }
8785 : }
8786 : else
8787 : {
8788 : /* avoid dangling else. */
8789 0 : M2MetaError_MetaError1 ((const char *) "array subscript {%1EDad:for} must be a subrange or enumeration type", 67, Type);
8790 0 : return (tree) (NULL);
8791 : }
8792 0 : if (SymbolConversion_GccKnowsAbout (High))
8793 : {
8794 0 : return (tree) (SymbolConversion_Mod2Gcc (High));
8795 : }
8796 : else
8797 : {
8798 : return (tree) (NULL);
8799 : }
8800 : /* static analysis guarentees a RETURN statement will be used before here. */
8801 : __builtin_unreachable ();
8802 : }
8803 :
8804 :
8805 : /*
8806 : BuildHighFromString -
8807 : */
8808 :
8809 898170 : static tree BuildHighFromString (unsigned int operand)
8810 : {
8811 898170 : location_t location;
8812 :
8813 898170 : location = M2LexBuf_TokenToLocation (SymbolTable_GetDeclaredMod (operand));
8814 898170 : if ((SymbolConversion_GccKnowsAbout (operand)) && ((m2expr_StringLength (SymbolConversion_Mod2Gcc (operand))) > 0))
8815 : {
8816 898170 : return m2decl_BuildIntegerConstant (static_cast<int> ((m2expr_StringLength (SymbolConversion_Mod2Gcc (operand)))-1));
8817 : }
8818 : else
8819 : {
8820 0 : return m2expr_GetIntegerZero (location);
8821 : }
8822 : /* static analysis guarentees a RETURN statement will be used before here. */
8823 : __builtin_unreachable ();
8824 : }
8825 :
8826 :
8827 : /*
8828 : ResolveHigh - given an Modula-2 operand, it resolves the HIGH(operand)
8829 : and returns a GCC constant symbol containing the value of
8830 : HIGH(operand).
8831 : */
8832 :
8833 980622 : static tree ResolveHigh (unsigned int tokenno, unsigned int dim, unsigned int operand)
8834 : {
8835 980622 : unsigned int Type;
8836 980622 : location_t location;
8837 :
8838 980622 : Type = SymbolTable_SkipType (SymbolTable_GetType (operand));
8839 980622 : location = M2LexBuf_TokenToLocation (tokenno);
8840 980622 : if ((Type == M2Base_Char) && (dim == 1))
8841 : {
8842 51186 : return BuildHighFromChar (operand);
8843 : }
8844 929436 : else if ((SymbolTable_IsConstString (operand)) && (dim == 1))
8845 : {
8846 : /* avoid dangling else. */
8847 898170 : return BuildHighFromString (operand);
8848 : }
8849 31266 : else if (SymbolTable_IsArray (Type))
8850 : {
8851 : /* avoid dangling else. */
8852 20532 : return BuildHighFromArray (tokenno, dim, operand);
8853 : }
8854 10734 : else if (SymbolTable_IsSet (Type))
8855 : {
8856 : /* avoid dangling else. */
8857 3352 : return BuildHighFromSetArray (tokenno, Type);
8858 : }
8859 7382 : else if (SymbolTable_IsUnbounded (Type))
8860 : {
8861 : /* avoid dangling else. */
8862 7382 : return M2GenGCC_GetHighFromUnbounded (location, dim, operand);
8863 : }
8864 : else
8865 : {
8866 : /* avoid dangling else. */
8867 0 : M2MetaError_MetaErrorT1 (tokenno, (const char *) "base procedure HIGH expects a variable of type array or a constant string or CHAR as its parameter, rather than {%1Etad}", 120, operand);
8868 0 : return m2expr_GetIntegerZero (location);
8869 : }
8870 : /* static analysis guarentees a RETURN statement will be used before here. */
8871 : __builtin_unreachable ();
8872 : }
8873 :
8874 :
8875 : /*
8876 : IsUnboundedArray - return TRUE if symbol is an unbounded array.
8877 : */
8878 :
8879 1227993 : static bool IsUnboundedArray (unsigned int sym)
8880 : {
8881 1227993 : if ((SymbolTable_IsParameter (sym)) || (SymbolTable_IsVar (sym)))
8882 : {
8883 302188 : return SymbolTable_IsUnbounded (SymbolTable_GetType (sym));
8884 : }
8885 : return false;
8886 : /* static analysis guarentees a RETURN statement will be used before here. */
8887 : __builtin_unreachable ();
8888 : }
8889 :
8890 :
8891 : /*
8892 : FoldHigh - if the array is not dynamic then we should be able to
8893 : remove the HighOp quadruple and assign op1 with
8894 : the known compile time HIGH(array).
8895 : */
8896 :
8897 1227993 : static void FoldHigh (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int op1, unsigned int dim, unsigned int array)
8898 : {
8899 1227993 : tree t;
8900 1227993 : location_t location;
8901 :
8902 : /* Firstly ensure that any constant literal is declared. */
8903 1227993 : M2GCCDeclare_TryDeclareConstant (tokenno, array);
8904 1227993 : location = M2LexBuf_TokenToLocation (tokenno);
8905 1227993 : if (((! (IsUnboundedArray (array))) && (SymbolConversion_GccKnowsAbout (array))) && (M2GCCDeclare_CompletelyResolved (array)))
8906 : {
8907 938447 : t = ResolveHigh (tokenno, dim, array);
8908 : /* We can take advantage of this and fold constants. */
8909 938447 : if ((SymbolTable_IsConst (op1)) && (t != ((tree) (NULL))))
8910 : {
8911 208 : SymbolTable_PutConst (op1, M2Base_Cardinal);
8912 208 : SymbolConversion_AddModGcc (op1, m2decl_DeclareKnownConstant (location, m2type_GetCardinalType (), m2convert_ToCardinal (location, t)));
8913 208 : (*p.proc) (op1);
8914 208 : NoChange = false;
8915 208 : M2Quads_SubQuad (quad);
8916 : }
8917 : /* We can still fold the expression but not the assignment,
8918 : we will not do this here but in CodeHigh when the result
8919 : can be stored. */
8920 : }
8921 1227993 : }
8922 :
8923 :
8924 : /*
8925 : CodeHigh - encode a unary arithmetic operation.
8926 : */
8927 :
8928 38823 : static void CodeHigh (unsigned int result, unsigned int dim, unsigned int array)
8929 : {
8930 38823 : location_t location;
8931 :
8932 38823 : location = M2LexBuf_TokenToLocation (CurrentQuadToken);
8933 : /* Firstly ensure that any constant literal is declared. */
8934 38823 : M2GCCDeclare_DeclareConstant (CurrentQuadToken, array);
8935 38823 : if (SymbolTable_IsConst (result))
8936 : {
8937 : /* Still have a constant which was not resolved, pass it to gcc. */
8938 24 : M2GCCDeclare_ConstantKnownAndUsed (result, m2decl_DeclareKnownConstant (location, m2type_GetM2ZType (), ResolveHigh (CurrentQuadToken, dim, array)));
8939 : }
8940 : else
8941 : {
8942 38799 : m2statement_BuildAssignmentStatement (location, SymbolConversion_Mod2Gcc (result), m2convert_BuildConvert (location, SymbolConversion_Mod2Gcc (SymbolTable_GetType (result)), ResolveHigh (CurrentQuadToken, dim, array), false));
8943 : }
8944 38823 : }
8945 :
8946 :
8947 : /*
8948 : CodeUnbounded - codes the creation of an unbounded parameter variable.
8949 : result = &array. array can be an lvalue or rvalue.
8950 : */
8951 :
8952 33615 : static void CodeUnbounded (unsigned int result, unsigned int array)
8953 : {
8954 33615 : tree Addr;
8955 33615 : location_t location;
8956 :
8957 33615 : location = M2LexBuf_TokenToLocation (CurrentQuadToken);
8958 33615 : M2GCCDeclare_DeclareConstant (CurrentQuadToken, array);
8959 33615 : if ((SymbolTable_IsConstString (array)) || ((SymbolTable_IsConst (array)) && ((SymbolTable_GetSType (array)) == M2Base_Char)))
8960 : {
8961 24745 : m2statement_BuildAssignmentStatement (location, SymbolConversion_Mod2Gcc (result), m2expr_BuildAddr (location, M2GCCDeclare_PromoteToString (CurrentQuadToken, array), false));
8962 : }
8963 8870 : else if (SymbolTable_IsConstructor (array))
8964 : {
8965 : /* avoid dangling else. */
8966 12 : m2statement_BuildAssignmentStatement (location, SymbolConversion_Mod2Gcc (result), m2expr_BuildAddr (location, SymbolConversion_Mod2Gcc (array), true));
8967 : }
8968 8858 : else if (SymbolTable_IsUnbounded (SymbolTable_GetType (array)))
8969 : {
8970 : /* avoid dangling else. */
8971 4230 : if ((SymbolTable_GetMode (array)) == SymbolTable_LeftValue)
8972 : {
8973 : /* We already have the address of the array, convert it to type of result. */
8974 0 : Addr = m2convert_BuildConvert (location, SymbolConversion_Mod2Gcc (SymbolTable_GetType (result)), SymbolConversion_Mod2Gcc (array), false);
8975 : }
8976 : else
8977 : {
8978 : /* Access the address field from the unbounded record. */
8979 4230 : Addr = m2expr_BuildComponentRef (location, SymbolConversion_Mod2Gcc (array), SymbolConversion_Mod2Gcc (SymbolTable_GetUnboundedAddressOffset (SymbolTable_GetType (array))));
8980 : }
8981 : /* Store address in result. */
8982 4230 : m2statement_BuildAssignmentStatement (location, SymbolConversion_Mod2Gcc (result), Addr);
8983 : }
8984 4628 : else if ((SymbolTable_GetMode (array)) == SymbolTable_RightValue)
8985 : {
8986 : /* avoid dangling else. */
8987 : /* Static array, get the address and store into result. */
8988 4574 : m2statement_BuildAssignmentStatement (location, SymbolConversion_Mod2Gcc (result), m2expr_BuildAddr (location, SymbolConversion_Mod2Gcc (array), false));
8989 : }
8990 : else
8991 : {
8992 : /* avoid dangling else. */
8993 : /* Static array which is a left value, just copy the address into result. */
8994 54 : m2statement_BuildAssignmentStatement (location, SymbolConversion_Mod2Gcc (result), SymbolConversion_Mod2Gcc (array));
8995 : }
8996 33615 : }
8997 :
8998 :
8999 : /*
9000 : AreSubrangesKnown - returns TRUE if the subranges values used within, array, are known.
9001 : */
9002 :
9003 46734 : static bool AreSubrangesKnown (unsigned int array)
9004 : {
9005 46734 : unsigned int type;
9006 46734 : unsigned int subscript;
9007 46734 : unsigned int low;
9008 46734 : unsigned int high;
9009 :
9010 46734 : if (SymbolConversion_GccKnowsAbout (array))
9011 : {
9012 46734 : subscript = SymbolTable_GetArraySubscript (array);
9013 46734 : if (subscript == SymbolTable_NulSym)
9014 : {
9015 0 : M2Error_InternalError ((const char *) "not expecting a NulSym as a subscript", 37);
9016 : }
9017 : else
9018 : {
9019 46734 : type = SymbolTable_SkipType (SymbolTable_GetType (subscript));
9020 46734 : low = M2GCCDeclare_GetTypeMin (type);
9021 46734 : high = M2GCCDeclare_GetTypeMax (type);
9022 46734 : return (SymbolConversion_GccKnowsAbout (low)) && (SymbolConversion_GccKnowsAbout (high));
9023 : }
9024 : }
9025 : else
9026 : {
9027 : return false;
9028 : }
9029 : ReturnException ("/home/worker/buildworker/tiber-lcov/build/gcc/m2/gm2-compiler/M2GenGCC.def", 20, 1);
9030 : __builtin_unreachable ();
9031 : }
9032 :
9033 :
9034 : /*
9035 : CodeArray - res is an lvalue which will point to the array element.
9036 : */
9037 :
9038 46734 : static void CodeArray (unsigned int res, unsigned int index, unsigned int array)
9039 : {
9040 46734 : unsigned int resType;
9041 46734 : unsigned int arrayDecl;
9042 46734 : unsigned int type;
9043 46734 : unsigned int low;
9044 46734 : unsigned int subscript;
9045 46734 : tree a;
9046 46734 : tree ta;
9047 46734 : tree ti;
9048 46734 : tree tl;
9049 46734 : location_t location;
9050 :
9051 46734 : location = M2LexBuf_TokenToLocation (CurrentQuadToken);
9052 46734 : arrayDecl = SymbolTable_SkipType (SymbolTable_GetType (array));
9053 46734 : if (AreSubrangesKnown (arrayDecl))
9054 : {
9055 46734 : subscript = SymbolTable_GetArraySubscript (arrayDecl);
9056 46734 : type = SymbolTable_SkipType (SymbolTable_GetType (subscript));
9057 46734 : low = M2GCCDeclare_GetTypeMin (type);
9058 46734 : resType = SymbolTable_GetVarBackEndType (res);
9059 46734 : if (resType == SymbolTable_NulSym)
9060 : {
9061 0 : resType = SymbolTable_SkipType (SymbolTable_GetType (res));
9062 : }
9063 46734 : ta = SymbolConversion_Mod2Gcc (SymbolTable_SkipType (SymbolTable_GetType (arrayDecl)));
9064 46734 : if ((SymbolTable_GetMode (array)) == SymbolTable_LeftValue)
9065 : {
9066 1640 : a = m2expr_BuildIndirect (location, SymbolConversion_Mod2Gcc (array), SymbolConversion_Mod2Gcc (SymbolTable_SkipType (SymbolTable_GetType (array))));
9067 : }
9068 : else
9069 : {
9070 45094 : a = SymbolConversion_Mod2Gcc (array);
9071 : }
9072 46734 : if (SymbolTable_IsArrayLarge (arrayDecl))
9073 : {
9074 24 : tl = m2convert_BuildConvert (location, SymbolConversion_Mod2Gcc (type), SymbolConversion_Mod2Gcc (low), false);
9075 24 : ti = m2convert_BuildConvert (location, SymbolConversion_Mod2Gcc (type), SymbolConversion_Mod2Gcc (index), false);
9076 24 : ti = m2convert_BuildConvert (location, m2type_GetIntegerType (), m2expr_BuildSub (location, ti, tl, false), false);
9077 24 : tl = m2expr_GetIntegerZero (location);
9078 : }
9079 : else
9080 : {
9081 46710 : tl = m2convert_BuildConvert (location, m2type_GetIntegerType (), SymbolConversion_Mod2Gcc (low), false);
9082 46710 : ti = m2convert_BuildConvert (location, m2type_GetIntegerType (), SymbolConversion_Mod2Gcc (index), false);
9083 : }
9084 : /* ti := BuildConvert(location, GetIntegerType(), Mod2Gcc(high), FALSE) ; */
9085 46734 : m2statement_BuildAssignmentStatement (location, SymbolConversion_Mod2Gcc (res), m2convert_BuildConvert (location, SymbolConversion_Mod2Gcc (resType), m2expr_BuildAddr (location, m2expr_BuildArray (location, ta, a, ti, tl), false), false));
9086 : }
9087 : else
9088 : {
9089 0 : M2Error_InternalError ((const char *) "subranges not yet resolved", 26);
9090 : }
9091 46734 : }
9092 :
9093 :
9094 : /*
9095 : FoldElementSizeForArray - attempts to calculate the Subscript
9096 : multiplier for the index op3.
9097 : */
9098 :
9099 0 : static void FoldElementSizeForArray (unsigned int tokenno, unsigned int quad, M2GCCDeclare_WalkAction p, unsigned int result, unsigned int type)
9100 : {
9101 0 : unsigned int Subscript;
9102 0 : location_t location;
9103 :
9104 0 : location = M2LexBuf_TokenToLocation (tokenno);
9105 0 : if ((SymbolTable_IsConst (result)) && (! (SymbolConversion_GccKnowsAbout (result))))
9106 : {
9107 0 : Subscript = SymbolTable_GetArraySubscript (type);
9108 0 : if (SymbolTable_IsSizeSolved (Subscript))
9109 : {
9110 0 : SymbolTable_PutConst (result, M2Base_Integer);
9111 0 : SymbolTable_PushSize (Subscript);
9112 0 : SymbolConversion_AddModGcc (result, m2decl_DeclareKnownConstant (location, m2type_GetCardinalType (), m2convert_BuildConvert (location, m2type_GetCardinalType (), M2ALU_PopIntegerTree (), true)));
9113 0 : (*p.proc) (result);
9114 0 : NoChange = false;
9115 0 : M2Quads_SubQuad (quad);
9116 : }
9117 : }
9118 0 : }
9119 :
9120 :
9121 : /*
9122 : FoldElementSizeForUnbounded - Unbounded arrays only have one index,
9123 : therefore element size will be the
9124 : TSIZE(Type) where Type is defined as:
9125 : ARRAY OF Type.
9126 : */
9127 :
9128 10048 : static void FoldElementSizeForUnbounded (unsigned int tokenno, unsigned int quad, M2GCCDeclare_WalkAction p, unsigned int result, unsigned int ArrayType)
9129 : {
9130 10048 : unsigned int Type;
9131 10048 : location_t location;
9132 :
9133 10048 : location = M2LexBuf_TokenToLocation (tokenno);
9134 10048 : if (SymbolTable_IsConst (result))
9135 : {
9136 : /* avoid gcc warning by using compound statement even if not strictly necessary. */
9137 10048 : if (SymbolConversion_GccKnowsAbout (result))
9138 : {
9139 0 : M2Error_InternalError ((const char *) "cannot assign a value twice to a constant", 41);
9140 : }
9141 : else
9142 : {
9143 10048 : M2Debug_Assert (SymbolTable_IsUnbounded (ArrayType));
9144 10048 : Type = SymbolTable_GetType (ArrayType);
9145 10048 : if (SymbolConversion_GccKnowsAbout (Type))
9146 : {
9147 10048 : SymbolTable_PutConst (result, M2Base_Cardinal);
9148 10048 : SymbolConversion_AddModGcc (result, m2decl_DeclareKnownConstant (location, m2type_GetCardinalType (), m2convert_BuildConvert (location, m2type_GetCardinalType (), FindSize (tokenno, Type), true)));
9149 10048 : (*p.proc) (result);
9150 10048 : NoChange = false;
9151 10048 : M2Quads_SubQuad (quad);
9152 : }
9153 : }
9154 : }
9155 10048 : }
9156 :
9157 :
9158 : /*
9159 : FoldElementSize - folds the element size for an ArraySym or UnboundedSym.
9160 : ElementSize returns a constant which defines the
9161 : multiplier to be multiplied by this element index.
9162 : */
9163 :
9164 10048 : static void FoldElementSize (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int result, unsigned int type)
9165 : {
9166 10048 : if (SymbolTable_IsUnbounded (type))
9167 : {
9168 10048 : FoldElementSizeForUnbounded (tokenno, quad, p, result, type);
9169 : }
9170 0 : else if (SymbolTable_IsArray (type))
9171 : {
9172 : /* avoid dangling else. */
9173 0 : FoldElementSizeForArray (tokenno, quad, p, result, type);
9174 : }
9175 : else
9176 : {
9177 : /* avoid dangling else. */
9178 0 : M2Error_InternalError ((const char *) "expecting UnboundedSym or ArraySym", 34);
9179 : }
9180 10048 : }
9181 :
9182 :
9183 : /*
9184 : PopKindTree - returns a Tree from M2ALU of the type implied by, op.
9185 : */
9186 :
9187 20172 : static tree PopKindTree (unsigned int op, unsigned int tokenno)
9188 : {
9189 20172 : unsigned int type;
9190 :
9191 20172 : if ((SymbolTable_IsConst (op)) && (SymbolTable_IsConstString (op)))
9192 : {
9193 : /* Converting a nul char or char for example. */
9194 1832 : return M2ALU_PopIntegerTree ();
9195 : }
9196 : else
9197 : {
9198 18340 : type = SymbolTable_SkipType (SymbolTable_GetType (op));
9199 18340 : if (SymbolTable_IsSet (type))
9200 : {
9201 0 : return M2ALU_PopSetTree (tokenno);
9202 : }
9203 18340 : else if (M2Base_IsRealType (type))
9204 : {
9205 : /* avoid dangling else. */
9206 66 : return M2ALU_PopRealTree ();
9207 : }
9208 : else
9209 : {
9210 : /* avoid dangling else. */
9211 18274 : return M2ALU_PopIntegerTree ();
9212 : }
9213 : }
9214 : /* static analysis guarentees a RETURN statement will be used before here. */
9215 : __builtin_unreachable ();
9216 : }
9217 :
9218 :
9219 : /*
9220 : FoldConvert - attempts to fold expr to type into result
9221 : providing that result and expr are constants.
9222 : If required convert will alter the machine representation
9223 : of expr to comply with type.
9224 : */
9225 :
9226 360284 : static void FoldConvert (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int result, unsigned int type, unsigned int expr)
9227 : {
9228 360284 : tree tl;
9229 360284 : location_t location;
9230 :
9231 360284 : location = M2LexBuf_TokenToLocation (tokenno);
9232 : /* First ensure that constant literals are declared. */
9233 360284 : M2GCCDeclare_TryDeclareConstant (tokenno, expr);
9234 360284 : if (IsConstant (expr))
9235 : {
9236 202408 : if (((SymbolConversion_GccKnowsAbout (type)) && ((SymbolTable_IsProcedure (expr)) || (SymbolTable_IsValueSolved (expr)))) && (SymbolConversion_GccKnowsAbout (SymbolTable_SkipType (type))))
9237 : {
9238 : /* The type is known and expr is resolved so fold the convert. */
9239 197038 : if (SymbolTable_IsConst (result))
9240 : {
9241 6828 : SymbolTable_PutConst (result, type); /* Change result type just in case. */
9242 6828 : tl = SymbolConversion_Mod2Gcc (SymbolTable_SkipType (type)); /* Change result type just in case. */
9243 6828 : if (SymbolTable_IsProcedure (expr))
9244 : {
9245 0 : SymbolConversion_AddModGcc (result, m2convert_BuildConvert (location, tl, SymbolConversion_Mod2Gcc (expr), true));
9246 : }
9247 : else
9248 : {
9249 6828 : SymbolTable_PushValue (expr);
9250 6828 : if (SymbolTable_IsConstSet (expr))
9251 : {
9252 84 : if (SymbolTable_IsSet (SymbolTable_SkipType (type)))
9253 : {
9254 0 : M2Error_WriteFormat0 ((const char *) "cannot convert values between sets", 34);
9255 : }
9256 : else
9257 : {
9258 84 : M2ALU_PushIntegerTree (m2expr_FoldAndStrip (m2convert_BuildConvert (location, tl, M2ALU_PopSetTree (tokenno), true)));
9259 84 : SymbolTable_PopValue (result);
9260 84 : SymbolTable_PushValue (result);
9261 84 : SymbolConversion_AddModGcc (result, M2ALU_PopIntegerTree ());
9262 : }
9263 : }
9264 : else
9265 : {
9266 6744 : if (SymbolTable_IsSet (SymbolTable_SkipType (type)))
9267 : {
9268 0 : M2ALU_PushSetTree (tokenno, m2expr_FoldAndStrip (m2convert_BuildConvert (location, tl, PopKindTree (expr, tokenno), true)), SymbolTable_SkipType (type));
9269 0 : SymbolTable_PopValue (result);
9270 0 : SymbolTable_PutConstSet (result);
9271 0 : SymbolTable_PushValue (result);
9272 0 : SymbolConversion_AddModGcc (result, M2ALU_PopSetTree (tokenno));
9273 : }
9274 6744 : else if (M2Base_IsRealType (SymbolTable_SkipType (type)))
9275 : {
9276 : /* avoid dangling else. */
9277 60 : M2ALU_PushRealTree (m2expr_FoldAndStrip (m2convert_BuildConvert (location, tl, PopKindTree (expr, tokenno), true)));
9278 60 : SymbolTable_PopValue (result);
9279 60 : SymbolTable_PushValue (result);
9280 60 : SymbolConversion_AddModGcc (result, PopKindTree (result, tokenno));
9281 : }
9282 : else
9283 : {
9284 : /* avoid dangling else. */
9285 : /* Let CheckOverflow catch a potential overflow rather than BuildConvert. */
9286 6684 : M2ALU_PushIntegerTree (m2expr_FoldAndStrip (m2convert_BuildConvert (location, tl, PopKindTree (expr, tokenno), false)));
9287 6684 : SymbolTable_PopValue (result);
9288 6684 : SymbolTable_PushValue (result);
9289 6684 : M2ALU_CheckOrResetOverflow (tokenno, PopKindTree (result, tokenno), M2Quads_MustCheckOverflow (quad));
9290 6684 : SymbolTable_PushValue (result);
9291 6684 : SymbolConversion_AddModGcc (result, PopKindTree (result, tokenno));
9292 : }
9293 : }
9294 : }
9295 6828 : (*p.proc) (result);
9296 6828 : NoChange = false;
9297 6828 : M2Quads_SubQuad (quad);
9298 : }
9299 : }
9300 : }
9301 360284 : }
9302 :
9303 :
9304 : /*
9305 : CodeConvert - Converts, rhs, to, type, placing the result into lhs.
9306 : Convert will, if need be, alter the machine representation
9307 : of op3 to comply with TYPE op2.
9308 : */
9309 :
9310 51740 : static void CodeConvert (unsigned int quad, unsigned int lhs, unsigned int type, unsigned int rhs)
9311 : {
9312 51740 : tree tl;
9313 51740 : tree tr;
9314 51740 : location_t location;
9315 :
9316 : /* Firstly ensure that constant literals are declared. */
9317 51740 : M2GCCDeclare_DeclareConstant (CurrentQuadToken, rhs);
9318 51740 : M2GCCDeclare_DeclareConstructor (CurrentQuadToken, quad, rhs);
9319 51740 : location = M2LexBuf_TokenToLocation (CurrentQuadToken);
9320 51740 : tl = M2GenGCC_LValueToGenericPtr (location, type);
9321 51740 : if (SymbolTable_IsProcedure (rhs))
9322 : {
9323 31764 : tr = m2expr_BuildAddr (location, SymbolConversion_Mod2Gcc (rhs), false);
9324 : }
9325 : else
9326 : {
9327 19976 : tr = M2GenGCC_LValueToGenericPtr (location, rhs);
9328 19976 : tr = ConvertRHS (tr, type, rhs);
9329 : }
9330 51740 : if (SymbolTable_IsConst (lhs))
9331 : {
9332 : /* Fine, we can take advantage of this and fold constant. */
9333 0 : SymbolTable_PutConst (lhs, type);
9334 0 : tl = SymbolConversion_Mod2Gcc (SymbolTable_SkipType (type));
9335 0 : M2GCCDeclare_ConstantKnownAndUsed (lhs, m2convert_BuildConvert (location, tl, SymbolConversion_Mod2Gcc (rhs), true));
9336 : }
9337 : else
9338 : {
9339 51740 : m2statement_BuildAssignmentStatement (location, SymbolConversion_Mod2Gcc (lhs), m2convert_BuildConvert (location, tl, tr, true));
9340 : }
9341 51740 : }
9342 :
9343 :
9344 : /*
9345 : CodeCoerce - Coerce op3 to type op2 placing the result into
9346 : op1.
9347 : Coerce will NOT alter the machine representation
9348 : of op3 to comply with TYPE op2.
9349 : Therefore it _insists_ that under all circumstances that the
9350 : type sizes of op1 and op3 are the same.
9351 : CONVERT will perform machine manipulation to change variable
9352 : types, coerce does no such thing.
9353 : */
9354 :
9355 1416 : static void CodeCoerce (unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3)
9356 : {
9357 1416 : location_t location;
9358 :
9359 1416 : M2GCCDeclare_DeclareConstant (CurrentQuadToken, op3); /* checks to see whether it is a constant literal and declares it */
9360 1416 : M2GCCDeclare_DeclareConstructor (CurrentQuadToken, quad, op3); /* checks to see whether it is a constant literal and declares it */
9361 1416 : location = M2LexBuf_TokenToLocation (CurrentQuadToken);
9362 1416 : if (SymbolTable_IsProcedure (op3))
9363 : {
9364 0 : if (m2expr_AreConstantsEqual (FindSize (CurrentQuadToken, op1), FindSize (CurrentQuadToken, M2System_Address)))
9365 : {
9366 0 : if (SymbolTable_IsConst (op1))
9367 : {
9368 0 : M2GCCDeclare_ConstantKnownAndUsed (op1, CheckConstant (CurrentQuadToken, op1, op3));
9369 : }
9370 : else
9371 : {
9372 0 : m2statement_BuildAssignmentStatement (location, SymbolConversion_Mod2Gcc (op1), SymbolConversion_Mod2Gcc (op3));
9373 : }
9374 : }
9375 : else
9376 : {
9377 0 : M2MetaError_MetaErrorT0 (CurrentQuadToken, (const char *) "{%E}procedure address can only be stored in an address sized operand", 68);
9378 : }
9379 : }
9380 1416 : else if ((SymbolTable_IsConst (op3)) || (m2expr_AreConstantsEqual (FindSize (CurrentQuadToken, op1), FindSize (CurrentQuadToken, op3))))
9381 : {
9382 : /* avoid dangling else. */
9383 1416 : if (SymbolTable_IsConst (op1))
9384 : {
9385 0 : M2GCCDeclare_ConstantKnownAndUsed (op1, m2decl_DeclareKnownConstant (location, SymbolConversion_Mod2Gcc (SymbolTable_GetType (op1)), SymbolConversion_Mod2Gcc (op3)));
9386 : }
9387 : else
9388 : {
9389 1416 : M2Debug_Assert (SymbolConversion_GccKnowsAbout (op2));
9390 1416 : if (SymbolTable_IsConst (op3))
9391 : {
9392 0 : m2statement_BuildAssignmentStatement (location, SymbolConversion_Mod2Gcc (op1), SymbolConversion_Mod2Gcc (op3));
9393 : }
9394 : else
9395 : {
9396 : /* does not work t := BuildCoerce(Mod2Gcc(op1), Mod2Gcc(op2), Mod2Gcc(op3)) */
9397 1416 : checkDeclare (op1);
9398 1416 : m2type_AddStatement (location, MaybeDebugBuiltinMemcpy (location, m2expr_BuildAddr (location, SymbolConversion_Mod2Gcc (op1), false), m2expr_BuildAddr (location, SymbolConversion_Mod2Gcc (op3), false), FindSize (CurrentQuadToken, op2)));
9399 : }
9400 : }
9401 : }
9402 : else
9403 : {
9404 : /* avoid dangling else. */
9405 0 : M2MetaError_MetaErrorT0 (CurrentQuadToken, (const char *) "can only {%kCAST} objects of the same size", 42);
9406 : }
9407 1416 : }
9408 :
9409 :
9410 : /*
9411 : FoldCoerce -
9412 : */
9413 :
9414 11030 : static void FoldCoerce (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3)
9415 : {
9416 11030 : location_t location;
9417 :
9418 11030 : M2GCCDeclare_TryDeclareConstant (tokenno, op3); /* checks to see whether it is a constant literal and declares it */
9419 11030 : location = M2LexBuf_TokenToLocation (tokenno); /* checks to see whether it is a constant literal and declares it */
9420 11030 : if ((SymbolConversion_GccKnowsAbout (op2)) && (SymbolConversion_GccKnowsAbout (op3)))
9421 : {
9422 : /* avoid gcc warning by using compound statement even if not strictly necessary. */
9423 2178 : if (SymbolTable_IsProcedure (op3))
9424 : {
9425 0 : if (m2expr_AreConstantsEqual (FindSize (tokenno, op1), FindSize (tokenno, M2System_Address)))
9426 : {
9427 : /* avoid dangling else. */
9428 0 : if (SymbolTable_IsConst (op1))
9429 : {
9430 0 : SymbolConversion_AddModGcc (op1, m2decl_DeclareKnownConstant (location, SymbolConversion_Mod2Gcc (SymbolTable_GetType (op1)), SymbolConversion_Mod2Gcc (op3)));
9431 0 : (*p.proc) (op1);
9432 0 : NoChange = false;
9433 0 : M2Quads_SubQuad (quad);
9434 : }
9435 : }
9436 : else
9437 : {
9438 0 : M2MetaError_MetaErrorT0 (CurrentQuadToken, (const char *) "{%E}procedure address can only be stored in a address sized operand", 67);
9439 : }
9440 : }
9441 2178 : else if (SymbolTable_IsConst (op3))
9442 : {
9443 : /* avoid dangling else. */
9444 1248 : if (SymbolTable_IsConst (op1))
9445 : {
9446 1248 : SymbolConversion_AddModGcc (op1, m2decl_DeclareKnownConstant (location, SymbolConversion_Mod2Gcc (SymbolTable_GetType (op1)), SymbolConversion_Mod2Gcc (op3)));
9447 1248 : (*p.proc) (op1);
9448 1248 : NoChange = false;
9449 1248 : M2Quads_SubQuad (quad);
9450 : }
9451 : }
9452 : }
9453 11030 : }
9454 :
9455 :
9456 : /*
9457 : CanConvert - returns TRUE if we can convert variable, var, to a, type.
9458 : */
9459 :
9460 0 : static bool CanConvert (unsigned int type, unsigned int var)
9461 : {
9462 0 : unsigned int svar;
9463 0 : unsigned int stype;
9464 :
9465 0 : stype = SymbolTable_SkipType (type);
9466 0 : svar = SymbolTable_SkipType (SymbolTable_GetType (var));
9467 0 : return (((M2Base_IsBaseType (stype)) || (M2Base_IsOrdinalType (stype))) || (M2System_IsSystemType (stype))) && (((M2Base_IsBaseType (svar)) || (M2Base_IsOrdinalType (svar))) || (M2System_IsSystemType (stype)));
9468 : /* static analysis guarentees a RETURN statement will be used before here. */
9469 : __builtin_unreachable ();
9470 : }
9471 :
9472 :
9473 : /*
9474 : CodeCast - Cast op3 to type op2 placing the result into op1.
9475 : Cast will NOT alter the machine representation
9476 : of op3 to comply with TYPE op2 as long as SIZE(op3)=SIZE(op2).
9477 : If the sizes differ then Convert is called.
9478 : */
9479 :
9480 126 : static void CodeCast (unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3)
9481 : {
9482 126 : location_t location;
9483 :
9484 126 : M2GCCDeclare_DeclareConstant (CurrentQuadToken, op3); /* checks to see whether it is a constant literal and declares it */
9485 126 : M2GCCDeclare_DeclareConstructor (CurrentQuadToken, quad, op3); /* checks to see whether it is a constant literal and declares it */
9486 126 : location = M2LexBuf_TokenToLocation (CurrentQuadToken);
9487 126 : if (SymbolTable_IsProcedure (op3))
9488 : {
9489 0 : if (m2expr_AreConstantsEqual (FindSize (CurrentQuadToken, op1), FindSize (CurrentQuadToken, M2System_Address)))
9490 : {
9491 0 : if (SymbolTable_IsConst (op1))
9492 : {
9493 0 : M2GCCDeclare_ConstantKnownAndUsed (op1, CheckConstant (CurrentQuadToken, op1, op3));
9494 : }
9495 : else
9496 : {
9497 0 : m2statement_BuildAssignmentStatement (location, SymbolConversion_Mod2Gcc (op1), SymbolConversion_Mod2Gcc (op3));
9498 : }
9499 : }
9500 : else
9501 : {
9502 0 : M2MetaError_MetaErrorT0 (CurrentQuadToken, (const char *) "{%E}procedure address can only be stored in an address sized operand", 68);
9503 : }
9504 : }
9505 126 : else if ((SymbolTable_IsConst (op3)) || (m2expr_AreConstantsEqual (FindSize (CurrentQuadToken, op1), FindSize (CurrentQuadToken, op3))))
9506 : {
9507 : /* avoid dangling else. */
9508 108 : CodeCoerce (quad, op1, op2, op3);
9509 : }
9510 : else
9511 : {
9512 : /* avoid dangling else. */
9513 18 : if (M2Options_PedanticCast && (! (CanConvert (op2, op3))))
9514 : {
9515 0 : M2MetaError_MetaError2 ((const char *) "{%WkCAST} cannot copy a variable src {%2Dad} to a destination {%1Dad} as they are of different sizes and are not ordinal or real types", 134, op1, op3);
9516 : }
9517 18 : CodeConvert (quad, op1, op2, op3);
9518 : }
9519 126 : }
9520 :
9521 1500 : static void FoldCast (unsigned int tokenno, M2GCCDeclare_WalkAction p, unsigned int quad, unsigned int op1, unsigned int op2, unsigned int op3)
9522 : {
9523 : /*
9524 : FoldCoerce -
9525 : */
9526 1500 : M2GCCDeclare_TryDeclareConstant (tokenno, op3); /* checks to see whether it is a constant literal and declares it */
9527 1500 : if ((SymbolConversion_GccKnowsAbout (op2)) && (SymbolConversion_GccKnowsAbout (op3))) /* checks to see whether it is a constant literal and declares it */
9528 : {
9529 : /* avoid gcc warning by using compound statement even if not strictly necessary. */
9530 234 : if (SymbolTable_IsProcedure (op3))
9531 : {
9532 0 : if (m2expr_AreConstantsEqual (FindSize (tokenno, op1), FindSize (tokenno, M2System_Address)))
9533 : {
9534 0 : FoldCoerce (tokenno, p, quad, op1, op2, op3);
9535 : }
9536 : else
9537 : {
9538 0 : M2MetaError_MetaErrorT0 (tokenno, (const char *) "{%E}procedure address can only be stored in an address sized operand", 68);
9539 : }
9540 : }
9541 234 : else if (SymbolTable_IsConst (op3))
9542 : {
9543 : /* avoid dangling else. */
9544 0 : FoldCoerce (tokenno, p, quad, op1, op2, op3);
9545 : }
9546 : }
9547 1500 : }
9548 :
9549 :
9550 : /*
9551 : CreateLabelProcedureN - creates a label using procedure name and
9552 : an integer.
9553 : */
9554 :
9555 0 : static DynamicStrings_String CreateLabelProcedureN (unsigned int proc, const char *leader_, unsigned int _leader_high, unsigned int unboundedCount, unsigned int n)
9556 : {
9557 0 : DynamicStrings_String n1;
9558 0 : DynamicStrings_String n2;
9559 0 : char leader[_leader_high+1];
9560 :
9561 : /* make a local copy of each unbounded array. */
9562 0 : memcpy (leader, leader_, _leader_high+1);
9563 :
9564 0 : n1 = DynamicStrings_Mark (DynamicStrings_InitStringCharStar (NameKey_KeyToCharStar (SymbolTable_GetSymName (proc))));
9565 0 : n2 = DynamicStrings_Mark (DynamicStrings_InitString ((const char *) leader, _leader_high));
9566 : /* prefixed by .L unboundedCount and n to ensure that no Modula-2 identifiers clash */
9567 0 : return FormatStrings_Sprintf4 (DynamicStrings_Mark (DynamicStrings_InitString ((const char *) ".L%d.%d.unbounded.%s.%s", 23)), (const unsigned char *) &unboundedCount, (sizeof (unboundedCount)-1), (const unsigned char *) &n, (sizeof (n)-1), (const unsigned char *) &n1, (sizeof (n1)-1), (const unsigned char *) &n2, (sizeof (n2)-1));
9568 : /* static analysis guarentees a RETURN statement will be used before here. */
9569 : __builtin_unreachable ();
9570 0 : }
9571 :
9572 :
9573 : /*
9574 : CreateLabelName - creates a namekey from quadruple, q.
9575 : */
9576 :
9577 223394 : static DynamicStrings_String CreateLabelName (unsigned int q)
9578 : {
9579 : /* Prefixed by . to ensure that no Modula-2 identifiers clash */
9580 223394 : return FormatStrings_Sprintf1 (DynamicStrings_Mark (DynamicStrings_InitString ((const char *) ".L%d", 4)), (const unsigned char *) &q, (sizeof (q)-1));
9581 : /* static analysis guarentees a RETURN statement will be used before here. */
9582 : __builtin_unreachable ();
9583 : }
9584 :
9585 :
9586 : /*
9587 : CodeGoto - creates a jump to a labeled quadruple.
9588 : */
9589 :
9590 44711 : static void CodeGoto (unsigned int destquad)
9591 : {
9592 44711 : location_t location;
9593 :
9594 44711 : location = M2LexBuf_TokenToLocation (CurrentQuadToken);
9595 44711 : m2statement_BuildGoto (location, reinterpret_cast <char * > (DynamicStrings_string (CreateLabelName (destquad))));
9596 44711 : }
9597 :
9598 :
9599 : /*
9600 : CheckReferenced - checks to see whether this quadruple requires a label.
9601 : */
9602 :
9603 4167916 : static void CheckReferenced (unsigned int quad, M2Quads_QuadOperator op)
9604 : {
9605 4167916 : location_t location;
9606 :
9607 4167916 : location = M2LexBuf_TokenToLocation (CurrentQuadToken);
9608 : /* We do not create labels for procedure entries. */
9609 4167916 : if (((op != M2Quads_ProcedureScopeOp) && (op != M2Quads_NewLocalVarOp)) && (M2Quads_IsReferenced (quad)))
9610 : {
9611 102178 : m2statement_DeclareLabel (location, reinterpret_cast <char * > (DynamicStrings_string (CreateLabelName (quad))));
9612 : }
9613 4167916 : }
9614 :
9615 :
9616 : /*
9617 : CodeIfSetCondition - code IF left cond right then destquad for set types.
9618 : */
9619 :
9620 18 : static void CodeIfSetCondition (unsigned int tokenno, unsigned int left, unsigned int right, unsigned int destquad, M2GenGCC_BinaryFunction cond, NameKey_Name procedurename)
9621 : {
9622 18 : unsigned int settype;
9623 18 : location_t location;
9624 18 : tree expr;
9625 :
9626 18 : location = M2LexBuf_TokenToLocation (tokenno);
9627 18 : if ((SymbolTable_IsConst (left)) && (SymbolTable_IsConst (right)))
9628 : {
9629 0 : M2Error_InternalError ((const char *) "this should have been folded in the calling procedure", 53);
9630 : }
9631 18 : else if (SymbolTable_IsConst (left))
9632 : {
9633 : /* avoid dangling else. */
9634 0 : settype = SymbolTable_SkipType (SymbolTable_GetType (right));
9635 : }
9636 : else
9637 : {
9638 : /* avoid dangling else. */
9639 18 : settype = SymbolTable_SkipType (SymbolTable_GetType (left));
9640 : }
9641 18 : if (SymbolTable_GetSetInWord (settype))
9642 : {
9643 : /* WORD size sets. */
9644 0 : expr = (*cond.proc) (location, m2convert_BuildConvert (location, m2type_GetWordType (), SymbolConversion_Mod2Gcc (left), false), m2convert_BuildConvert (location, m2type_GetWordType (), SymbolConversion_Mod2Gcc (right), false));
9645 : }
9646 : else
9647 : {
9648 18 : expr = CallSetWideBoolFunction (location, tokenno, procedurename, settype, left, right);
9649 : }
9650 18 : m2statement_IfExprJump (location, expr, reinterpret_cast <char * > (DynamicStrings_string (CreateLabelName (destquad))));
9651 18 : }
9652 :
9653 :
9654 : /*
9655 : CodeIfSetLess - code IF left < right then destquad for set types.
9656 : */
9657 :
9658 6 : static void CodeIfSetLess (unsigned int tokenno, unsigned int left, unsigned int right, unsigned int destquad)
9659 : {
9660 6 : CodeIfSetCondition (tokenno, left, right, destquad, (M2GenGCC_BinaryFunction) {(M2GenGCC_BinaryFunction_t) m2expr_BuildIsSubset}, NameKey_MakeKey ((const char *) "Less", 4));
9661 6 : }
9662 :
9663 :
9664 : /*
9665 : CodeIfSetLessEqu - code IF left <= right then destquad for set types.
9666 : */
9667 :
9668 6 : static void CodeIfSetLessEqu (unsigned int tokenno, unsigned int left, unsigned int right, unsigned int destquad)
9669 : {
9670 6 : CodeIfSetCondition (tokenno, left, right, destquad, (M2GenGCC_BinaryFunction) {(M2GenGCC_BinaryFunction_t) m2expr_BuildIsSubset}, NameKey_MakeKey ((const char *) "LessEqu", 7));
9671 6 : }
9672 :
9673 :
9674 : /*
9675 : CodeIfSetGre - code IF left > right then destquad for set types.
9676 : */
9677 :
9678 0 : static void CodeIfSetGre (unsigned int tokenno, unsigned int left, unsigned int right, unsigned int destquad)
9679 : {
9680 0 : CodeIfSetCondition (tokenno, left, right, destquad, (M2GenGCC_BinaryFunction) {(M2GenGCC_BinaryFunction_t) m2expr_BuildIsNotSubset}, NameKey_MakeKey ((const char *) "Gre", 3));
9681 0 : }
9682 :
9683 :
9684 : /*
9685 : CodeIfSetGreEqu - code IF left >= right then destquad for set types.
9686 : */
9687 :
9688 6 : static void CodeIfSetGreEqu (unsigned int tokenno, unsigned int left, unsigned int right, unsigned int destquad)
9689 : {
9690 6 : CodeIfSetCondition (tokenno, left, right, destquad, (M2GenGCC_BinaryFunction) {(M2GenGCC_BinaryFunction_t) m2expr_BuildIsNotSubset}, NameKey_MakeKey ((const char *) "GreEqu", 6));
9691 6 : }
9692 :
9693 :
9694 : /*
9695 : PerformCodeIfLess - codes the quadruple if op1 < op2 then goto op3
9696 : */
9697 :
9698 3826 : static void PerformCodeIfLess (unsigned int quad)
9699 : {
9700 3826 : tree tl;
9701 3826 : tree tr;
9702 3826 : location_t location;
9703 3826 : unsigned int left;
9704 3826 : unsigned int right;
9705 3826 : unsigned int dest;
9706 3826 : unsigned int combined;
9707 3826 : unsigned int leftpos;
9708 3826 : unsigned int rightpos;
9709 3826 : unsigned int destpos;
9710 3826 : bool constExpr;
9711 3826 : bool overflow;
9712 3826 : M2Quads_QuadOperator op;
9713 :
9714 3826 : M2Quads_GetQuadOtok (quad, &combined, &op, &left, &right, &dest, &overflow, &constExpr, &leftpos, &rightpos, &destpos);
9715 3826 : location = M2LexBuf_TokenToLocation (combined);
9716 3826 : if ((SymbolTable_IsConst (left)) && (SymbolTable_IsConst (right)))
9717 : {
9718 0 : SymbolTable_PushValue (left);
9719 0 : SymbolTable_PushValue (right);
9720 0 : if (M2ALU_Less (CurrentQuadToken))
9721 : {
9722 0 : m2statement_BuildGoto (location, reinterpret_cast <char * > (DynamicStrings_string (CreateLabelName (dest))));
9723 : }
9724 : /* Fall through. */
9725 : }
9726 3826 : else if ((((SymbolTable_IsConstSet (left)) || ((SymbolTable_IsVar (left)) && (SymbolTable_IsSet (SymbolTable_SkipType (SymbolTable_GetType (left)))))) || (SymbolTable_IsConstSet (right))) || ((SymbolTable_IsVar (right)) && (SymbolTable_IsSet (SymbolTable_SkipType (SymbolTable_GetType (right))))))
9727 : {
9728 : /* avoid dangling else. */
9729 6 : CodeIfSetLess (combined, left, right, dest);
9730 : }
9731 : else
9732 : {
9733 : /* avoid dangling else. */
9734 3820 : if ((SymbolTable_IsComposite (SymbolTable_GetType (left))) || (SymbolTable_IsComposite (SymbolTable_GetType (right))))
9735 : {
9736 0 : M2MetaError_MetaErrorT2 (combined, (const char *) "comparison tests between composite types not allowed {%1Eatd} and {%2atd}", 73, left, right);
9737 : }
9738 : else
9739 : {
9740 3820 : ConvertBinaryOperands (location, &tl, &tr, ComparisonMixTypes (left, right, SymbolTable_SkipType (SymbolTable_GetType (left)), SymbolTable_SkipType (SymbolTable_GetType (right)), combined), left, right);
9741 3820 : m2statement_IfExprJump (location, m2expr_BuildLessThan (location, tl, tr), reinterpret_cast <char * > (DynamicStrings_string (CreateLabelName (dest))));
9742 : }
9743 : }
9744 3826 : }
9745 :
9746 :
9747 : /*
9748 : CodeIfLess - codes the quadruple if op1 < op2 then goto op3
9749 : */
9750 :
9751 3826 : static void CodeIfLess (unsigned int quad)
9752 : {
9753 3826 : if (IsValidExpressionRelOp (quad, false))
9754 : {
9755 3826 : PerformCodeIfLess (quad);
9756 : }
9757 3826 : }
9758 :
9759 :
9760 : /*
9761 : CodeIfSetEquNarrow -
9762 : */
9763 :
9764 724 : static void CodeIfSetEquNarrow (location_t location, bool invertCondition, unsigned int settype, tree left, tree right, unsigned int destQuad)
9765 : {
9766 724 : tree condition;
9767 724 : tree mask;
9768 :
9769 : /* The set type fits inside a word, so mask off any unused bits. */
9770 724 : mask = m2expr_BuildMask (location, CalcBitsInSet (location, settype), false);
9771 724 : left = m2expr_BuildLogicalAnd (location, left, mask);
9772 724 : right = m2expr_BuildLogicalAnd (location, right, mask);
9773 724 : if (invertCondition)
9774 : {
9775 360 : condition = m2expr_BuildNotEqualTo (location, left, right);
9776 : }
9777 : else
9778 : {
9779 364 : condition = m2expr_BuildEqualTo (location, left, right);
9780 : }
9781 724 : m2statement_IfExprJump (location, condition, reinterpret_cast <char * > (DynamicStrings_string (CreateLabelName (destQuad))));
9782 724 : }
9783 :
9784 :
9785 : /*
9786 : CallSetWideBoolFunction - return a tree containing a call to
9787 : M2WIDESET.widefuncname (left, right, HIGHBIT (settype)).
9788 : */
9789 :
9790 552 : static tree CallSetWideBoolFunction (location_t location, unsigned int tokenno, NameKey_Name widefuncname, unsigned int settype, unsigned int left, unsigned int right)
9791 : {
9792 552 : unsigned int function;
9793 552 : unsigned int param1;
9794 552 : unsigned int param2;
9795 552 : tree highbit;
9796 552 : tree array1;
9797 552 : tree array2;
9798 552 : tree call;
9799 :
9800 552 : function = FromM2WIDESETImport (tokenno, widefuncname);
9801 552 : checkDeclare (function);
9802 552 : location = M2LexBuf_TokenToLocation (tokenno);
9803 552 : param1 = SymbolTable_GetNthParamAnyClosest (function, 1, SymbolTable_GetMainModule ());
9804 552 : param2 = SymbolTable_GetNthParamAnyClosest (function, 2, SymbolTable_GetMainModule ());
9805 552 : array1 = CreateSetArrayParam (location, tokenno, left, param1);
9806 552 : array2 = CreateSetArrayParam (location, tokenno, right, param2);
9807 552 : highbit = m2convert_ToCardinal (location, CalcHighSetBit (location, settype));
9808 552 : m2statement_BuildParam (location, highbit); /* Parameter 3. */
9809 552 : m2statement_BuildParam (location, array2); /* Parameter 2. */
9810 552 : m2statement_BuildParam (location, array1); /* Parameter 1. */
9811 552 : call = m2statement_BuildProcedureCallTree (location, SymbolConversion_Mod2Gcc (function), SymbolConversion_Mod2Gcc (SymbolTable_GetType (function))); /* Parameter 1. */
9812 552 : m2statement_SetLastFunction (NULL);
9813 552 : return call;
9814 : /* static analysis guarentees a RETURN statement will be used before here. */
9815 : __builtin_unreachable ();
9816 : }
9817 :
9818 :
9819 : /*
9820 : CodeIfSetEquWide - creates a statement tree:
9821 : if left = right then goto destQuad. The boolean
9822 : invertCondition will check left # right.
9823 : */
9824 :
9825 534 : static void CodeIfSetEquWide (location_t location, unsigned int tokenno, bool invertCondition, unsigned int settype, unsigned int left, unsigned int right, unsigned int destQuad)
9826 : {
9827 534 : tree call;
9828 534 : tree expr;
9829 534 : tree label;
9830 :
9831 534 : call = CallSetWideBoolFunction (location, tokenno, NameKey_MakeKey ((const char *) "Equal", 5), settype, left, right);
9832 534 : label = static_cast<tree> (CreateLabelName (destQuad));
9833 534 : if (invertCondition)
9834 : {
9835 240 : expr = m2expr_BuildEqualTo (location, call, m2type_GetBooleanFalse ());
9836 : }
9837 : else
9838 : {
9839 294 : expr = m2expr_BuildNotEqualTo (location, call, m2type_GetBooleanFalse ());
9840 : }
9841 534 : m2statement_IfExprJump (location, expr, reinterpret_cast <char * > (DynamicStrings_string (static_cast<DynamicStrings_String> (label))));
9842 534 : }
9843 :
9844 :
9845 : /*
9846 : CodeIfSetEquLower code a comparison between left and right and if true
9847 : jump to destQuad. The invertCondition allows for the inverse test.
9848 : Note that if op1 and op2 are not both constants as this will have been
9849 : evaluated in CodeIfNotEqu.
9850 : */
9851 :
9852 1258 : static void CodeIfSetEquLower (unsigned int tokenno, bool invertCondition, unsigned int left, unsigned int right, unsigned int destQuad)
9853 : {
9854 1258 : unsigned int settype;
9855 1258 : location_t location;
9856 :
9857 1258 : location = M2LexBuf_TokenToLocation (tokenno);
9858 1258 : if ((SymbolTable_IsConst (left)) && (SymbolTable_IsConst (right)))
9859 : {
9860 0 : M2Error_InternalError ((const char *) "this should have been folded by CodeIfEqu or CodeIfNotEqu", 57);
9861 : }
9862 1258 : else if (SymbolTable_IsConst (left))
9863 : {
9864 : /* avoid dangling else. */
9865 0 : settype = SymbolTable_GetLType (right);
9866 : }
9867 : else
9868 : {
9869 : /* avoid dangling else. */
9870 1258 : settype = SymbolTable_GetLType (left);
9871 : }
9872 1258 : if ((SymbolTable_GetLType (left)) != (SymbolTable_GetLType (right)))
9873 : {
9874 : /* This test used to occur after the GetSetInWord (settype) condition. */
9875 0 : M2MetaError_MetaErrorT2 (tokenno, (const char *) "set comparison is only allowed between the same set type, the set types used by {%1Eatd} and {%2atd} are different", 114, left, right);
9876 : }
9877 1258 : if (SymbolTable_GetSetInWord (settype))
9878 : {
9879 : /* Allow sets to be compared against { } for bitset. */
9880 724 : CodeIfSetEquNarrow (location, invertCondition, settype, SymbolConversion_Mod2Gcc (left), SymbolConversion_Mod2Gcc (right), destQuad);
9881 : }
9882 : else
9883 : {
9884 534 : CodeIfSetEquWide (location, tokenno, invertCondition, settype, left, right, destQuad);
9885 : }
9886 1258 : }
9887 :
9888 :
9889 : /*
9890 : CodeIfSetNotEqu - codes if op1 # op2 then goto op3
9891 : */
9892 :
9893 600 : static void CodeIfSetNotEqu (unsigned int tokenno, unsigned int left, unsigned int right, unsigned int destQuad)
9894 : {
9895 0 : CodeIfSetEquLower (tokenno, true, left, right, destQuad);
9896 600 : }
9897 :
9898 :
9899 : /*
9900 : CodeIfSetEqu - codes if op1 = op2 then goto op3
9901 : */
9902 :
9903 658 : static void CodeIfSetEqu (unsigned int tokenno, unsigned int left, unsigned int right, unsigned int destQuad)
9904 : {
9905 0 : CodeIfSetEquLower (tokenno, false, left, right, destQuad);
9906 658 : }
9907 :
9908 :
9909 : /*
9910 : PerformCodeIfGre - codes the quadruple if op1 > op2 then goto op3
9911 : */
9912 :
9913 4606 : static void PerformCodeIfGre (unsigned int quad)
9914 : {
9915 4606 : tree tl;
9916 4606 : tree tr;
9917 4606 : tree condition;
9918 4606 : location_t location;
9919 4606 : unsigned int left;
9920 4606 : unsigned int right;
9921 4606 : unsigned int dest;
9922 4606 : unsigned int combined;
9923 4606 : unsigned int leftpos;
9924 4606 : unsigned int rightpos;
9925 4606 : unsigned int destpos;
9926 4606 : bool constExpr;
9927 4606 : bool overflow;
9928 4606 : M2Quads_QuadOperator op;
9929 :
9930 4606 : M2Quads_GetQuadOtok (quad, &combined, &op, &left, &right, &dest, &overflow, &constExpr, &leftpos, &rightpos, &destpos);
9931 4606 : location = M2LexBuf_TokenToLocation (combined);
9932 4606 : if ((SymbolTable_IsConst (left)) && (SymbolTable_IsConst (right)))
9933 : {
9934 0 : SymbolTable_PushValue (left);
9935 0 : SymbolTable_PushValue (right);
9936 0 : if (M2ALU_Gre (combined))
9937 : {
9938 0 : m2statement_BuildGoto (location, reinterpret_cast <char * > (DynamicStrings_string (CreateLabelName (dest))));
9939 : }
9940 : /* fall through */
9941 : }
9942 4606 : else if ((((SymbolTable_IsConstSet (left)) || ((SymbolTable_IsVar (left)) && (SymbolTable_IsSet (SymbolTable_SkipType (SymbolTable_GetType (left)))))) || (SymbolTable_IsConstSet (right))) || ((SymbolTable_IsVar (right)) && (SymbolTable_IsSet (SymbolTable_SkipType (SymbolTable_GetType (right))))))
9943 : {
9944 : /* avoid dangling else. */
9945 0 : CodeIfSetGre (combined, left, right, dest);
9946 : }
9947 : else
9948 : {
9949 : /* avoid dangling else. */
9950 4606 : if ((SymbolTable_IsComposite (SymbolTable_GetType (left))) || (SymbolTable_IsComposite (SymbolTable_GetType (right))))
9951 : {
9952 0 : M2MetaError_MetaErrorT2 (combined, (const char *) "comparison tests between composite types not allowed {%1Eatd} and {%2atd}", 73, left, right);
9953 : }
9954 : else
9955 : {
9956 4606 : ConvertBinaryOperands (location, &tl, &tr, ComparisonMixTypes (left, right, SymbolTable_SkipType (SymbolTable_GetType (left)), SymbolTable_SkipType (SymbolTable_GetType (right)), combined), left, right);
9957 4606 : condition = m2expr_BuildGreaterThan (location, tl, tr);
9958 4606 : m2statement_IfExprJump (location, condition, reinterpret_cast <char * > (DynamicStrings_string (CreateLabelName (dest))));
9959 : }
9960 : }
9961 4606 : }
9962 :
9963 :
9964 : /*
9965 : CodeIfGre - codes the quadruple if op1 > op2 then goto op3
9966 : */
9967 :
9968 4606 : static void CodeIfGre (unsigned int quad)
9969 : {
9970 4606 : if (IsValidExpressionRelOp (quad, false))
9971 : {
9972 4606 : PerformCodeIfGre (quad);
9973 : }
9974 4606 : }
9975 :
9976 :
9977 : /*
9978 : PerformCodeIfLessEqu - codes the quadruple if op1 <= op2 then goto op3
9979 : */
9980 :
9981 5754 : static void PerformCodeIfLessEqu (unsigned int quad)
9982 : {
9983 5754 : tree tl;
9984 5754 : tree tr;
9985 5754 : tree condition;
9986 5754 : location_t location;
9987 5754 : unsigned int left;
9988 5754 : unsigned int right;
9989 5754 : unsigned int dest;
9990 5754 : unsigned int combined;
9991 5754 : unsigned int leftpos;
9992 5754 : unsigned int rightpos;
9993 5754 : unsigned int destpos;
9994 5754 : bool constExpr;
9995 5754 : bool overflow;
9996 5754 : M2Quads_QuadOperator op;
9997 :
9998 5754 : M2Quads_GetQuadOtok (quad, &combined, &op, &left, &right, &dest, &overflow, &constExpr, &leftpos, &rightpos, &destpos);
9999 5754 : location = M2LexBuf_TokenToLocation (combined);
10000 5754 : if ((SymbolTable_IsConst (left)) && (SymbolTable_IsConst (right)))
10001 : {
10002 0 : SymbolTable_PushValue (left);
10003 0 : SymbolTable_PushValue (right);
10004 0 : if (M2ALU_LessEqu (combined))
10005 : {
10006 0 : m2statement_BuildGoto (location, reinterpret_cast <char * > (DynamicStrings_string (CreateLabelName (dest))));
10007 : }
10008 : /* fall through */
10009 : }
10010 5754 : else if ((((SymbolTable_IsConstSet (left)) || ((SymbolTable_IsVar (left)) && (SymbolTable_IsSet (SymbolTable_SkipType (SymbolTable_GetType (left)))))) || (SymbolTable_IsConstSet (right))) || ((SymbolTable_IsVar (right)) && (SymbolTable_IsSet (SymbolTable_SkipType (SymbolTable_GetType (right))))))
10011 : {
10012 : /* avoid dangling else. */
10013 6 : CodeIfSetLessEqu (combined, left, right, dest);
10014 : }
10015 : else
10016 : {
10017 : /* avoid dangling else. */
10018 5748 : if ((SymbolTable_IsComposite (SymbolTable_GetType (left))) || (SymbolTable_IsComposite (SymbolTable_GetType (right))))
10019 : {
10020 0 : M2MetaError_MetaErrorT2 (combined, (const char *) "comparison tests between composite types not allowed {%1Eatd} and {%2atd}", 73, left, right);
10021 : }
10022 : else
10023 : {
10024 5748 : ConvertBinaryOperands (location, &tl, &tr, ComparisonMixTypes (left, right, SymbolTable_SkipType (SymbolTable_GetType (left)), SymbolTable_SkipType (SymbolTable_GetType (right)), combined), left, right);
10025 5748 : condition = m2expr_BuildLessThanOrEqual (location, tl, tr);
10026 5748 : m2statement_IfExprJump (location, condition, reinterpret_cast <char * > (DynamicStrings_string (CreateLabelName (dest))));
10027 : }
10028 : }
10029 5754 : }
10030 :
10031 :
10032 : /*
10033 : CodeIfLessEqu - codes the quadruple if op1 <= op2 then goto op3
10034 : */
10035 :
10036 5766 : static void CodeIfLessEqu (unsigned int quad)
10037 : {
10038 5766 : if (IsValidExpressionRelOp (quad, false))
10039 : {
10040 5754 : PerformCodeIfLessEqu (quad);
10041 : }
10042 5766 : }
10043 :
10044 :
10045 : /*
10046 : PerformCodeIfGreEqu - codes the quadruple if op1 >= op2 then goto op3
10047 : */
10048 :
10049 7070 : static void PerformCodeIfGreEqu (unsigned int quad)
10050 : {
10051 7070 : tree tl;
10052 7070 : tree tr;
10053 7070 : tree condition;
10054 7070 : location_t location;
10055 7070 : unsigned int left;
10056 7070 : unsigned int right;
10057 7070 : unsigned int dest;
10058 7070 : unsigned int combined;
10059 7070 : unsigned int leftpos;
10060 7070 : unsigned int rightpos;
10061 7070 : unsigned int destpos;
10062 7070 : bool constExpr;
10063 7070 : bool overflow;
10064 7070 : M2Quads_QuadOperator op;
10065 :
10066 7070 : M2Quads_GetQuadOtok (quad, &combined, &op, &left, &right, &dest, &overflow, &constExpr, &leftpos, &rightpos, &destpos);
10067 7070 : location = M2LexBuf_TokenToLocation (combined);
10068 7070 : if ((SymbolTable_IsConst (left)) && (SymbolTable_IsConst (right)))
10069 : {
10070 0 : SymbolTable_PushValue (left);
10071 0 : SymbolTable_PushValue (right);
10072 0 : if (M2ALU_GreEqu (combined))
10073 : {
10074 0 : m2statement_BuildGoto (location, reinterpret_cast <char * > (DynamicStrings_string (CreateLabelName (dest))));
10075 : }
10076 : /* fall through */
10077 : }
10078 7070 : else if ((((SymbolTable_IsConstSet (left)) || ((SymbolTable_IsVar (left)) && (SymbolTable_IsSet (SymbolTable_SkipType (SymbolTable_GetType (left)))))) || (SymbolTable_IsConstSet (right))) || ((SymbolTable_IsVar (right)) && (SymbolTable_IsSet (SymbolTable_SkipType (SymbolTable_GetType (right))))))
10079 : {
10080 : /* avoid dangling else. */
10081 6 : CodeIfSetGreEqu (combined, left, right, dest);
10082 : }
10083 : else
10084 : {
10085 : /* avoid dangling else. */
10086 7064 : if ((SymbolTable_IsComposite (SymbolTable_GetType (left))) || (SymbolTable_IsComposite (SymbolTable_GetType (right))))
10087 : {
10088 0 : M2MetaError_MetaErrorT2 (combined, (const char *) "comparison tests between composite types not allowed {%1Eatd} and {%2atd}", 73, left, right);
10089 : }
10090 : else
10091 : {
10092 7064 : ConvertBinaryOperands (location, &tl, &tr, ComparisonMixTypes (left, right, SymbolTable_SkipType (SymbolTable_GetType (left)), SymbolTable_SkipType (SymbolTable_GetType (right)), combined), left, right);
10093 7064 : condition = m2expr_BuildGreaterThanOrEqual (location, tl, tr);
10094 7064 : m2statement_IfExprJump (location, condition, reinterpret_cast <char * > (DynamicStrings_string (CreateLabelName (dest))));
10095 : }
10096 : }
10097 7070 : }
10098 :
10099 :
10100 : /*
10101 : CodeIfGreEqu - codes the quadruple if op1 >= op2 then goto op3
10102 : */
10103 :
10104 7076 : static void CodeIfGreEqu (unsigned int quad)
10105 : {
10106 7076 : if (IsValidExpressionRelOp (quad, false))
10107 : {
10108 7070 : PerformCodeIfGreEqu (quad);
10109 : }
10110 7076 : }
10111 :
10112 :
10113 : /*
10114 : ComparisonMixTypes -
10115 : */
10116 :
10117 72699 : static unsigned int ComparisonMixTypes (unsigned int varleft, unsigned int varright, unsigned int left, unsigned int right, unsigned int tokpos)
10118 : {
10119 72699 : if (M2System_IsGenericSystemType (left))
10120 : {
10121 : return left;
10122 : }
10123 72385 : else if (M2System_IsGenericSystemType (right))
10124 : {
10125 : /* avoid dangling else. */
10126 : return right;
10127 : }
10128 : else
10129 : {
10130 : /* avoid dangling else. */
10131 72385 : return M2Base_MixTypesDecl (varleft, varright, left, right, tokpos);
10132 : }
10133 : /* static analysis guarentees a RETURN statement will be used before here. */
10134 : __builtin_unreachable ();
10135 : }
10136 :
10137 :
10138 : /*
10139 : PerformCodeIfEqu -
10140 : */
10141 :
10142 20708 : static void PerformCodeIfEqu (unsigned int quad)
10143 : {
10144 20708 : tree tl;
10145 20708 : tree tr;
10146 20708 : tree condition;
10147 20708 : location_t location;
10148 20708 : unsigned int left;
10149 20708 : unsigned int right;
10150 20708 : unsigned int dest;
10151 20708 : unsigned int combined;
10152 20708 : unsigned int leftpos;
10153 20708 : unsigned int rightpos;
10154 20708 : unsigned int destpos;
10155 20708 : bool constExpr;
10156 20708 : bool overflow;
10157 20708 : M2Quads_QuadOperator op;
10158 :
10159 20708 : M2Quads_GetQuadOtok (quad, &combined, &op, &left, &right, &dest, &overflow, &constExpr, &leftpos, &rightpos, &destpos);
10160 20708 : location = M2LexBuf_TokenToLocation (combined);
10161 20708 : if ((SymbolTable_IsConst (left)) && (SymbolTable_IsConst (right)))
10162 : {
10163 0 : SymbolTable_PushValue (left);
10164 0 : SymbolTable_PushValue (right);
10165 0 : if (M2ALU_Equ (combined))
10166 : {
10167 0 : m2statement_BuildGoto (location, reinterpret_cast <char * > (DynamicStrings_string (CreateLabelName (dest))));
10168 : }
10169 : /* Fall through. */
10170 : }
10171 20708 : else if ((((SymbolTable_IsConstSet (left)) || ((SymbolTable_IsVar (left)) && (SymbolTable_IsSet (SymbolTable_SkipType (SymbolTable_GetType (left)))))) || (SymbolTable_IsConstSet (right))) || ((SymbolTable_IsVar (right)) && (SymbolTable_IsSet (SymbolTable_SkipType (SymbolTable_GetType (right))))))
10172 : {
10173 : /* avoid dangling else. */
10174 658 : CodeIfSetEqu (quad, left, right, dest);
10175 : }
10176 : else
10177 : {
10178 : /* avoid dangling else. */
10179 20050 : if ((SymbolTable_IsComposite (SymbolTable_GetType (left))) || (SymbolTable_IsComposite (SymbolTable_GetType (right))))
10180 : {
10181 0 : M2MetaError_MetaErrorT2 (combined, (const char *) "equality tests between composite types not allowed {%1Eatd} and {%2atd}", 71, left, right);
10182 : }
10183 : else
10184 : {
10185 20050 : ConvertBinaryOperands (location, &tl, &tr, ComparisonMixTypes (left, right, SymbolTable_SkipType (SymbolTable_GetType (left)), SymbolTable_SkipType (SymbolTable_GetType (right)), combined), left, right);
10186 20050 : condition = m2expr_BuildEqualTo (location, tl, tr);
10187 20050 : m2statement_IfExprJump (location, condition, reinterpret_cast <char * > (DynamicStrings_string (CreateLabelName (dest))));
10188 : }
10189 : }
10190 20708 : }
10191 :
10192 :
10193 : /*
10194 : PerformCodeIfNotEqu -
10195 : */
10196 :
10197 32017 : static void PerformCodeIfNotEqu (unsigned int quad)
10198 : {
10199 32017 : tree tl;
10200 32017 : tree tr;
10201 32017 : tree condition;
10202 32017 : location_t location;
10203 32017 : unsigned int left;
10204 32017 : unsigned int right;
10205 32017 : unsigned int dest;
10206 32017 : unsigned int combined;
10207 32017 : unsigned int leftpos;
10208 32017 : unsigned int rightpos;
10209 32017 : unsigned int destpos;
10210 32017 : bool constExpr;
10211 32017 : bool overflow;
10212 32017 : M2Quads_QuadOperator op;
10213 :
10214 : /* Ensure that any remaining undeclared constant literal is declared. */
10215 32017 : M2Quads_GetQuadOtok (quad, &combined, &op, &left, &right, &dest, &constExpr, &overflow, &leftpos, &rightpos, &destpos);
10216 32017 : location = M2LexBuf_TokenToLocation (combined);
10217 32017 : if ((SymbolTable_IsConst (left)) && (SymbolTable_IsConst (right)))
10218 : {
10219 6 : SymbolTable_PushValue (left);
10220 6 : SymbolTable_PushValue (right);
10221 6 : if (M2ALU_NotEqu (combined))
10222 : {
10223 0 : m2statement_BuildGoto (location, reinterpret_cast <char * > (DynamicStrings_string (CreateLabelName (dest))));
10224 : }
10225 : /* Fall through. */
10226 : }
10227 32011 : else if ((((SymbolTable_IsConstSet (left)) || ((SymbolTable_IsVar (left)) && (SymbolTable_IsSet (SymbolTable_SkipType (SymbolTable_GetType (left)))))) || (SymbolTable_IsConstSet (right))) || ((SymbolTable_IsVar (right)) && (SymbolTable_IsSet (SymbolTable_SkipType (SymbolTable_GetType (right))))))
10228 : {
10229 : /* avoid dangling else. */
10230 600 : CodeIfSetNotEqu (combined, left, right, dest);
10231 : }
10232 : else
10233 : {
10234 : /* avoid dangling else. */
10235 31411 : if ((SymbolTable_IsComposite (SymbolTable_GetType (left))) || (SymbolTable_IsComposite (SymbolTable_GetType (right))))
10236 : {
10237 0 : M2MetaError_MetaErrorT2 (combined, (const char *) "inequality tests between composite types not allowed {%1Eatd} and {%2atd}", 73, left, right);
10238 : }
10239 : else
10240 : {
10241 31411 : ConvertBinaryOperands (location, &tl, &tr, ComparisonMixTypes (left, right, SymbolTable_SkipType (SymbolTable_GetType (left)), SymbolTable_SkipType (SymbolTable_GetType (right)), combined), left, right);
10242 31411 : condition = m2expr_BuildNotEqualTo (location, tl, tr);
10243 31411 : m2statement_IfExprJump (location, condition, reinterpret_cast <char * > (DynamicStrings_string (CreateLabelName (dest))));
10244 : }
10245 : }
10246 32017 : }
10247 :
10248 :
10249 : /*
10250 : IsValidExpressionRelOp - declare left and right constants (if they are not already declared).
10251 : Check whether left and right are expression compatible.
10252 : */
10253 :
10254 76427 : static bool IsValidExpressionRelOp (unsigned int quad, bool isin)
10255 : {
10256 76427 : unsigned int left;
10257 76427 : unsigned int right;
10258 76427 : unsigned int dest;
10259 76427 : unsigned int combined;
10260 76427 : unsigned int leftpos;
10261 76427 : unsigned int rightpos;
10262 76427 : unsigned int destpos;
10263 76427 : bool constExpr;
10264 76427 : bool overflow;
10265 76427 : M2Quads_QuadOperator op;
10266 :
10267 : /* Ensure that any remaining undeclared constant literal is declared. */
10268 76427 : M2Quads_GetQuadOtok (quad, &combined, &op, &left, &right, &dest, &constExpr, &overflow, &leftpos, &rightpos, &destpos);
10269 76427 : M2GCCDeclare_DeclareConstant (leftpos, left);
10270 76427 : M2GCCDeclare_DeclareConstant (rightpos, right);
10271 76427 : M2GCCDeclare_DeclareConstructor (leftpos, quad, left);
10272 76427 : M2GCCDeclare_DeclareConstructor (rightpos, quad, right);
10273 76427 : if (M2Check_ExpressionTypeCompatible (combined, (const char *) "", 0, left, right, M2Options_StrictTypeChecking, isin))
10274 : {
10275 : return true;
10276 : }
10277 : else
10278 : {
10279 : if (Verbose)
10280 : {
10281 : M2MetaError_MetaErrorT2 (combined, (const char *) "expression mismatch between {%1Etad} and {%2tad} seen during comparison", 71, left, right);
10282 : }
10283 : return false;
10284 : }
10285 : /* static analysis guarentees a RETURN statement will be used before here. */
10286 : __builtin_unreachable ();
10287 : }
10288 :
10289 :
10290 : /*
10291 : CodeIfEqu - codes the quadruple if op1 = op2 then goto op3
10292 : */
10293 :
10294 20726 : static void CodeIfEqu (unsigned int quad)
10295 : {
10296 20726 : if (IsValidExpressionRelOp (quad, false))
10297 : {
10298 20708 : PerformCodeIfEqu (quad);
10299 : }
10300 20726 : }
10301 :
10302 :
10303 : /*
10304 : CodeIfNotEqu - codes the quadruple if op1 # op2 then goto op3
10305 : */
10306 :
10307 32029 : static void CodeIfNotEqu (unsigned int quad)
10308 : {
10309 32029 : if (IsValidExpressionRelOp (quad, false))
10310 : {
10311 32017 : PerformCodeIfNotEqu (quad);
10312 : }
10313 32029 : }
10314 :
10315 :
10316 : /*
10317 : MixTypes3 - returns a type compatible from, low, high, var.
10318 : */
10319 :
10320 104 : static unsigned int MixTypes3 (unsigned int low, unsigned int high, unsigned int var, unsigned int tokenno)
10321 : {
10322 104 : unsigned int type;
10323 :
10324 104 : type = M2Base_MixTypes (SymbolTable_SkipType (SymbolTable_GetType (low)), SymbolTable_SkipType (SymbolTable_GetType (high)), tokenno);
10325 104 : type = M2Base_MixTypes (type, SymbolTable_SkipType (SymbolTable_GetType (var)), tokenno);
10326 104 : return type;
10327 : /* static analysis guarentees a RETURN statement will be used before here. */
10328 : __builtin_unreachable ();
10329 : }
10330 :
10331 :
10332 : /*
10333 : BuildIfVarInConstValue - if var in constsetvalue then goto trueexit
10334 : */
10335 :
10336 6 : static void BuildIfVarInConstValue (location_t location, unsigned int tokenno, M2ALU_PtrToValue constsetvalue, unsigned int var, unsigned int trueexit)
10337 : {
10338 6 : tree vt;
10339 6 : tree lt;
10340 6 : tree ht;
10341 6 : unsigned int type;
10342 6 : unsigned int low;
10343 6 : unsigned int high;
10344 6 : unsigned int n;
10345 6 : DynamicStrings_String truelabel;
10346 :
10347 6 : n = 1;
10348 6 : truelabel = static_cast<DynamicStrings_String> (DynamicStrings_string (CreateLabelName (trueexit)));
10349 24 : while (M2ALU_GetRange (constsetvalue, n, &low, &high))
10350 : {
10351 12 : type = MixTypes3 (low, high, var, tokenno);
10352 12 : ConvertBinaryOperands (location, &vt, <, type, var, low);
10353 12 : ConvertBinaryOperands (location, &ht, <, type, high, low);
10354 12 : m2expr_BuildIfInRangeGoto (location, vt, lt, ht, reinterpret_cast <char * > (truelabel));
10355 12 : n += 1;
10356 : }
10357 6 : }
10358 :
10359 :
10360 : /*
10361 : BuildIfNotVarInConstValue - if not (var in constsetvalue) then goto trueexit
10362 : */
10363 :
10364 56 : static void BuildIfNotVarInConstValue (location_t location, unsigned int tokenno, unsigned int quad, M2ALU_PtrToValue constsetvalue, unsigned int var, unsigned int trueexit)
10365 : {
10366 56 : tree vt;
10367 56 : tree lt;
10368 56 : tree ht;
10369 56 : unsigned int type;
10370 56 : unsigned int low;
10371 56 : unsigned int high;
10372 56 : unsigned int n;
10373 56 : DynamicStrings_String falselabel;
10374 56 : DynamicStrings_String truelabel;
10375 :
10376 56 : truelabel = static_cast<DynamicStrings_String> (DynamicStrings_string (CreateLabelName (trueexit)));
10377 56 : n = 1;
10378 204 : while (M2ALU_GetRange (constsetvalue, n, &low, &high))
10379 : {
10380 92 : n += 1;
10381 : }
10382 56 : if (n == 2)
10383 : {
10384 : /* Only one set range, so we invert it */
10385 24 : type = MixTypes3 (low, high, var, tokenno);
10386 24 : ConvertBinaryOperands (location, &vt, <, type, var, low);
10387 24 : ConvertBinaryOperands (location, &ht, <, type, high, low);
10388 24 : m2expr_BuildIfNotInRangeGoto (location, vt, lt, ht, reinterpret_cast <char * > (truelabel));
10389 : }
10390 : else
10391 : {
10392 32 : n = 1;
10393 32 : falselabel = static_cast<DynamicStrings_String> (DynamicStrings_string (FormatStrings_Sprintf1 (DynamicStrings_Mark (DynamicStrings_InitString ((const char *) ".Lset%d", 7)), (const unsigned char *) &quad, (sizeof (quad)-1))));
10394 132 : while (M2ALU_GetRange (constsetvalue, n, &low, &high))
10395 : {
10396 68 : type = MixTypes3 (low, high, var, tokenno);
10397 68 : ConvertBinaryOperands (location, &vt, <, type, var, low);
10398 68 : ConvertBinaryOperands (location, &ht, <, type, high, low);
10399 68 : m2expr_BuildIfInRangeGoto (location, vt, lt, ht, reinterpret_cast <char * > (falselabel));
10400 68 : n += 1;
10401 : }
10402 32 : m2statement_BuildGoto (location, reinterpret_cast <char * > (truelabel));
10403 32 : m2statement_DeclareLabel (location, reinterpret_cast <char * > (falselabel));
10404 : }
10405 56 : }
10406 :
10407 :
10408 : /*
10409 : SetWideIfIn - if M2WIDESET.In (set, element) then goto branch end.
10410 : */
10411 :
10412 846 : static void SetWideIfIn (location_t location, unsigned int tokenno, bool invertCondition, unsigned int settype, unsigned int element, unsigned int set, unsigned int branch)
10413 : {
10414 846 : DynamicStrings_String label;
10415 846 : tree bit;
10416 846 : tree call;
10417 846 : tree expr;
10418 846 : tree setarray;
10419 846 : unsigned int setparam;
10420 846 : unsigned int procedure;
10421 :
10422 846 : procedure = FromM2WIDESETImport (tokenno, NameKey_MakeKey ((const char *) "In", 2));
10423 846 : setparam = SymbolTable_GetNthParamAnyClosest (procedure, 1, SymbolTable_GetMainModule ());
10424 846 : setarray = CreateSetArrayParam (location, tokenno, set, setparam);
10425 846 : bit = SetElementToBit (location, settype, element);
10426 846 : m2statement_BuildParam (location, m2convert_ToCardinal (location, bit));
10427 846 : m2statement_BuildParam (location, setarray);
10428 846 : call = m2statement_BuildProcedureCallTree (location, SymbolConversion_Mod2Gcc (procedure), SymbolConversion_Mod2Gcc (SymbolTable_GetType (procedure)));
10429 846 : m2statement_SetLastFunction (NULL);
10430 846 : label = CreateLabelName (branch);
10431 846 : if (invertCondition)
10432 : {
10433 630 : expr = m2expr_BuildEqualTo (location, call, m2type_GetBooleanFalse ());
10434 : }
10435 : else
10436 : {
10437 216 : expr = m2expr_BuildNotEqualTo (location, call, m2type_GetBooleanFalse ());
10438 : }
10439 846 : m2statement_IfExprJump (location, expr, reinterpret_cast <char * > (DynamicStrings_string (label)));
10440 846 : }
10441 :
10442 :
10443 : /*
10444 : CodeNarrowIfIn -
10445 : */
10446 :
10447 1466 : static void CodeNarrowIfIn (location_t location, unsigned int settype, bool invertCondition, unsigned int element, unsigned int set, unsigned int branch)
10448 : {
10449 1466 : tree label;
10450 1466 : tree cond;
10451 1466 : tree bit;
10452 1466 : tree mask;
10453 1466 : tree bitset;
10454 :
10455 1466 : bit = m2convert_ToBitset (location, SetElementToBit (location, settype, element));
10456 1466 : mask = m2expr_BuildMask (location, CalcBitsInSet (location, settype), false);
10457 : /* Mask off only the bits we need. */
10458 1466 : bitset = m2convert_ToBitset (location, m2expr_BuildLogicalAnd (location, SymbolConversion_Mod2Gcc (set), mask));
10459 1466 : if (invertCondition)
10460 : {
10461 1162 : cond = m2expr_BuildIfNotInSet (location, bitset, bit);
10462 : }
10463 : else
10464 : {
10465 304 : cond = m2expr_BuildIfInSet (location, bitset, bit);
10466 : }
10467 1466 : label = static_cast<tree> (CreateLabelName (branch));
10468 1466 : m2statement_IfExprJump (location, cond, reinterpret_cast <char * > (DynamicStrings_string (static_cast<DynamicStrings_String> (label))));
10469 1466 : }
10470 :
10471 :
10472 : /*
10473 : CodeIfInLower - code the quadruple: if element in set then goto branch.
10474 : The invertCondition can be set to TRUE to handle CodeIfNotIn.
10475 : */
10476 :
10477 2392 : static void CodeIfInLower (unsigned int tokenno, unsigned int quad, bool invertCondition, unsigned int element, unsigned int set, unsigned int branch)
10478 : {
10479 2392 : unsigned int settype;
10480 2392 : location_t location;
10481 2392 : M2ALU_PtrToValue constsetvalue;
10482 :
10483 2392 : location = M2LexBuf_TokenToLocation (tokenno);
10484 : /* Firstly ensure that any constant literal is declared. */
10485 2392 : M2GCCDeclare_DeclareConstant (tokenno, set);
10486 2392 : M2GCCDeclare_DeclareConstant (tokenno, element);
10487 2392 : M2GCCDeclare_DeclareConstructor (tokenno, quad, set);
10488 2392 : M2GCCDeclare_DeclareConstructor (tokenno, quad, element);
10489 2392 : checkDeclare (set);
10490 2392 : checkDeclare (element);
10491 2392 : settype = SymbolTable_GetLType (set);
10492 2392 : if ((SymbolTable_IsConst (element)) && (SymbolTable_IsConst (set)))
10493 : {
10494 0 : M2Error_InternalError ((const char *) "should not get to here (if we do we should consider calling FoldIfIn)", 69);
10495 : }
10496 2392 : else if (CheckElementSetTypes (quad))
10497 : {
10498 : /* avoid dangling else. */
10499 2380 : if (SymbolTable_IsConst (set))
10500 : {
10501 62 : SymbolTable_PushValue (set);
10502 62 : constsetvalue = M2ALU_GetValue (tokenno);
10503 62 : if (invertCondition)
10504 : {
10505 : /* Builds a cascaded list of if statements. */
10506 56 : BuildIfNotVarInConstValue (location, tokenno, quad, constsetvalue, element, branch);
10507 : }
10508 : else
10509 : {
10510 : /* Builds a very different cascaded list of if statements. */
10511 6 : BuildIfVarInConstValue (location, tokenno, constsetvalue, element, branch);
10512 : }
10513 : }
10514 : else
10515 : {
10516 2318 : M2Debug_Assert (SymbolTable_IsVar (set));
10517 2318 : if (IsElementInRange (tokenno, settype, set, element))
10518 : {
10519 : /* avoid gcc warning by using compound statement even if not strictly necessary. */
10520 : /* Check for narrow and wide sets and call M2WIDESET if appropriate. */
10521 2312 : if (SymbolTable_GetSetInWord (settype))
10522 : {
10523 1466 : CodeNarrowIfIn (location, settype, invertCondition, element, set, branch);
10524 : }
10525 : else
10526 : {
10527 846 : SetWideIfIn (location, tokenno, invertCondition, settype, element, set, branch);
10528 : }
10529 : }
10530 : }
10531 : }
10532 2392 : }
10533 :
10534 :
10535 : /*
10536 : PerformCodeIfIn -
10537 : */
10538 :
10539 2392 : static void PerformCodeIfIn (unsigned int quad, bool invert)
10540 : {
10541 2392 : M2Quads_QuadOperator op;
10542 2392 : unsigned int element;
10543 2392 : unsigned int set;
10544 2392 : unsigned int branch;
10545 2392 : unsigned int combined;
10546 2392 : unsigned int elementpos;
10547 2392 : unsigned int setpos;
10548 2392 : unsigned int destpos;
10549 2392 : bool constExpr;
10550 2392 : bool overflow;
10551 :
10552 2392 : M2Quads_GetQuadOtok (quad, &combined, &op, &element, &set, &branch, &overflow, &constExpr, &elementpos, &setpos, &destpos);
10553 2392 : CodeIfInLower (combined, quad, invert, element, set, branch);
10554 2392 : }
10555 :
10556 :
10557 : /*
10558 : CodeIfIn - code the quadruple: if element in set then goto branch.
10559 : */
10560 :
10561 532 : static void CodeIfIn (unsigned int quad)
10562 : {
10563 532 : if (IsValidExpressionRelOp (quad, true))
10564 : {
10565 526 : PerformCodeIfIn (quad, false);
10566 : }
10567 532 : }
10568 :
10569 :
10570 : /*
10571 : CodeIfNotIn - code the quadruple: if not (element in set) then goto branch.
10572 : */
10573 :
10574 1866 : static void CodeIfNotIn (unsigned int quad)
10575 : {
10576 1866 : if (IsValidExpressionRelOp (quad, true))
10577 : {
10578 1866 : PerformCodeIfIn (quad, true);
10579 : }
10580 1866 : }
10581 :
10582 16429 : static void CodeIndrX (unsigned int quad)
10583 : {
10584 16429 : bool constExpr;
10585 16429 : bool overflowChecking;
10586 16429 : M2Quads_QuadOperator op;
10587 16429 : unsigned int tokenno;
10588 16429 : unsigned int left;
10589 16429 : unsigned int type;
10590 16429 : unsigned int right;
10591 16429 : unsigned int leftpos;
10592 16429 : unsigned int rightpos;
10593 16429 : unsigned int typepos;
10594 16429 : unsigned int indrxpos;
10595 16429 : location_t location;
10596 :
10597 : /*
10598 : ------------------------------------------------------------------------------
10599 : IndrX Operator a = *b
10600 : ------------------------------------------------------------------------------
10601 : Sym1<X> IndrX Sym2<I> Meaning Mem[Sym1<I>] := Mem[constant]
10602 : Sym1<X> IndrX Sym2<X> Meaning Mem[Sym1<I>] := Mem[Mem[Sym3<I>]]
10603 :
10604 : (op2 is the type of the data being indirectly copied)
10605 : */
10606 16429 : M2Quads_GetQuadOtok (quad, &indrxpos, &op, &left, &type, &right, &overflowChecking, &constExpr, &leftpos, &typepos, &rightpos);
10607 16429 : tokenno = M2LexBuf_MakeVirtualTok (indrxpos, leftpos, rightpos);
10608 16429 : location = M2LexBuf_TokenToLocation (tokenno);
10609 : /*
10610 : Follow the Quadruple rules:
10611 : */
10612 16429 : M2GCCDeclare_DeclareConstant (rightpos, right); /* Checks to see whether it is a constant
10613 : and if necessary declare it. */
10614 16429 : M2GCCDeclare_DeclareConstructor (rightpos, quad, right); /* Checks to see whether it is a constant
10615 : and if necessary declare it. */
10616 16429 : if (SymbolTable_IsConstString (right))
10617 : {
10618 0 : M2Error_InternalError ((const char *) "not expecting to index through a constant string", 48);
10619 : }
10620 16429 : else if (M2Options_StrictTypeChecking && (! (M2Check_AssignmentTypeCompatible (indrxpos, (const char *) "", 0, left, SymbolTable_GetType (right), true))))
10621 : {
10622 : /* avoid dangling else. */
10623 0 : M2MetaError_MetaErrorT2 (tokenno, (const char *) "assignment check caught mismatch between {%1Ead} and {%2ad}", 59, left, right);
10624 0 : M2Quads_SubQuad (quad);
10625 : }
10626 : else
10627 : {
10628 : /* avoid dangling else. */
10629 : /*
10630 : Mem[op1] := Mem[Mem[op3]]
10631 : */
10632 16429 : m2statement_BuildAssignmentStatement (location, SymbolConversion_Mod2Gcc (left), m2expr_BuildIndirect (location, SymbolConversion_Mod2Gcc (right), SymbolConversion_Mod2Gcc (type)));
10633 : }
10634 16429 : }
10635 :
10636 :
10637 : /*
10638 : CodeXIndr - operands for XIndrOp are: left type right.
10639 : *left = right. The second operand is the type of the data being
10640 : indirectly copied.
10641 : */
10642 :
10643 43222 : static void CodeXIndr (unsigned int quad)
10644 : {
10645 43222 : bool constExpr;
10646 43222 : bool overflowChecking;
10647 43222 : M2Quads_QuadOperator op;
10648 43222 : unsigned int tokenno;
10649 43222 : unsigned int left;
10650 43222 : unsigned int type;
10651 43222 : unsigned int right;
10652 43222 : unsigned int leftpos;
10653 43222 : unsigned int rightpos;
10654 43222 : unsigned int typepos;
10655 43222 : unsigned int xindrpos;
10656 43222 : tree length;
10657 43222 : tree newstr;
10658 43222 : location_t location;
10659 :
10660 43222 : M2Quads_GetQuadOtok (quad, &xindrpos, &op, &left, &type, &right, &overflowChecking, &constExpr, &leftpos, &typepos, &rightpos);
10661 43222 : tokenno = M2LexBuf_MakeVirtualTok (xindrpos, leftpos, rightpos);
10662 43222 : location = M2LexBuf_TokenToLocation (tokenno);
10663 43222 : type = SymbolTable_SkipType (type);
10664 43222 : M2GCCDeclare_DeclareConstant (rightpos, right);
10665 43222 : M2GCCDeclare_DeclareConstructor (rightpos, quad, right);
10666 43222 : if (M2Options_StrictTypeChecking && (! (M2Check_AssignmentTypeCompatible (xindrpos, (const char *) "", 0, SymbolTable_GetType (left), right, true))))
10667 : {
10668 0 : M2MetaError_MetaErrorT2 (tokenno, (const char *) "assignment check caught mismatch between {%1Ead} and {%2ad}", 59, left, right);
10669 0 : M2Quads_SubQuad (quad);
10670 : }
10671 43222 : if (SymbolTable_IsProcType (SymbolTable_SkipType (type)))
10672 : {
10673 31814 : m2statement_BuildAssignmentStatement (location, m2expr_BuildIndirect (location, SymbolConversion_Mod2Gcc (left), m2type_GetPointerType ()), SymbolConversion_Mod2Gcc (right));
10674 : }
10675 11408 : else if (((SymbolTable_IsConstString (right)) && ((SymbolTable_GetStringLength (rightpos, right)) == 0)) && ((SymbolTable_GetMode (left)) == SymbolTable_LeftValue))
10676 : {
10677 : /* avoid dangling else. */
10678 : /*
10679 : no need to check for type errors,
10680 : but we handle nul string as a special case as back end
10681 : complains if we pass through a "" and ask it to copy the
10682 : contents.
10683 : */
10684 12 : m2statement_BuildAssignmentStatement (location, m2expr_BuildIndirect (location, M2GenGCC_LValueToGenericPtr (location, left), SymbolConversion_Mod2Gcc (M2Base_Char)), M2GenGCC_StringToChar (SymbolConversion_Mod2Gcc (right), M2Base_Char, right));
10685 : }
10686 11396 : else if ((SymbolTable_IsConstString (right)) && ((SymbolTable_SkipTypeAndSubrange (SymbolTable_GetType (left))) != M2Base_Char))
10687 : {
10688 : /* avoid dangling else. */
10689 42 : if (! (M2GenGCC_PrepareCopyString (tokenno, &length, &newstr, right, type)))
10690 : {
10691 0 : M2MetaError_MetaErrorT2 (M2LexBuf_MakeVirtualTok (xindrpos, leftpos, rightpos), (const char *) "string constant {%1Ea} is too large to be assigned to the array {%2ad}", 70, right, left);
10692 : }
10693 42 : m2type_AddStatement (location, MaybeDebugBuiltinMemcpy (location, SymbolConversion_Mod2Gcc (left), m2expr_BuildAddr (location, newstr, false), length));
10694 : }
10695 : else
10696 : {
10697 : /* avoid dangling else. */
10698 11354 : m2statement_BuildAssignmentStatement (location, m2expr_BuildIndirect (location, SymbolConversion_Mod2Gcc (left), SymbolConversion_Mod2Gcc (type)), ConvertRHS (SymbolConversion_Mod2Gcc (right), type, right));
10699 : }
10700 43222 : }
10701 :
10702 :
10703 : /*
10704 : InitBuiltinSyms -
10705 : */
10706 :
10707 95647870 : static void InitBuiltinSyms (unsigned int tok)
10708 : {
10709 95647870 : if (Memset == SymbolTable_NulSym)
10710 : {
10711 13940 : Memset = SymbolTable_FromModuleGetSym (tok, NameKey_MakeKey ((const char *) "memset", 6), M2Batch_MakeDefinitionSource (tok, NameKey_MakeKey ((const char *) "Builtins", 8)));
10712 : }
10713 95647870 : if (Memcpy == SymbolTable_NulSym)
10714 : {
10715 13940 : Memcpy = SymbolTable_FromModuleGetSym (tok, NameKey_MakeKey ((const char *) "memcpy", 6), M2Batch_MakeDefinitionSource (tok, NameKey_MakeKey ((const char *) "Builtins", 8)));
10716 : }
10717 95647870 : }
10718 :
10719 :
10720 : /*
10721 : gdbhook - a debugger convenience hook.
10722 : */
10723 :
10724 0 : static void gdbhook (void)
10725 : {
10726 0 : }
10727 :
10728 :
10729 : /*
10730 : BreakWhenQuadTranslated - to be called interactively by gdb.
10731 : */
10732 :
10733 14952 : static void BreakWhenQuadTranslated (unsigned int quad)
10734 : {
10735 14952 : BreakQuad = quad;
10736 0 : }
10737 :
10738 :
10739 : /*
10740 : CheckBreak - if quad = BreakQuad then call gdbhook.
10741 : */
10742 :
10743 0 : static void CheckBreak (unsigned int quad)
10744 : {
10745 0 : if (quad == BreakQuad)
10746 : {
10747 0 : gdbhook ();
10748 : }
10749 0 : }
10750 :
10751 :
10752 : /*
10753 : Init -
10754 : */
10755 :
10756 14952 : static void Init (void)
10757 : {
10758 : /* You might want to add the option -fm2-debug-trace=quad to cc1gm2 if
10759 : contenplating interactively debugging cc1gm2 using the scheme below. */
10760 14952 : BreakWhenQuadTranslated (0); /* Disable the interactive quad watch. */
10761 : /* To examine when a quad is about to be converted into a gimple tree
10762 : run cc1gm2 from gdb and set a break point on gdbhook.
10763 : (gdb) break gdbhook
10764 : (gdb) run
10765 : Now below interactively call BreakWhenQuadTranslated with the quad
10766 : under investigation. */
10767 14952 : gdbhook ();
10768 : /* Now is the time to interactively call gdb, for example:
10769 : (gdb) print BreakWhenQuadTranslated (1234)
10770 : (gdb) cont
10771 : and you will arrive at gdbhook when this quad is about to be translated. */
10772 14952 : Memset = SymbolTable_NulSym;
10773 14952 : Memcpy = SymbolTable_NulSym;
10774 14952 : UnboundedLabelNo = 0;
10775 14952 : CurrentQuadToken = 0;
10776 14952 : SetTemporaryNo = 0;
10777 14952 : ScopeStack = M2StackWord_InitStackWord ();
10778 14952 : }
10779 :
10780 :
10781 : /*
10782 : ConvertQuadsToTree - runs through the quadruple list and converts it into
10783 : the GCC tree structure.
10784 : */
10785 :
10786 397657 : extern "C" void M2GenGCC_ConvertQuadsToTree (unsigned int Start, unsigned int End)
10787 : {
10788 4167916 : do {
10789 4167916 : CodeStatement (Start);
10790 4167904 : Start = M2Quads_GetNextQuad (Start);
10791 4167904 : } while (! ((Start > End) || (Start == 0)));
10792 397645 : }
10793 :
10794 :
10795 : /*
10796 : ResolveConstantExpressions - resolves constant expressions from the quadruple list.
10797 : It returns TRUE if one or more constants were folded.
10798 : When a constant symbol value is solved, the call back
10799 : p(sym) is invoked.
10800 : */
10801 :
10802 91413565 : extern "C" bool M2GenGCC_ResolveConstantExpressions (M2GCCDeclare_WalkAction p, M2BasicBlock_BasicBlock bb)
10803 : {
10804 91413565 : unsigned int tokenno;
10805 91413565 : unsigned int quad;
10806 91413565 : M2Quads_QuadOperator op;
10807 91413565 : unsigned int op1;
10808 91413565 : unsigned int op2;
10809 91413565 : unsigned int op3;
10810 91413565 : unsigned int op1pos;
10811 91413565 : unsigned int op2pos;
10812 91413565 : unsigned int op3pos;
10813 91413565 : bool Changed;
10814 91413565 : unsigned int start;
10815 91413565 : unsigned int end;
10816 :
10817 91413565 : InitBuiltinSyms (M2LexBuf_BuiltinTokenNo);
10818 91413565 : start = M2BasicBlock_GetBasicBlockStart (bb);
10819 91413565 : end = M2BasicBlock_GetBasicBlockEnd (bb);
10820 91413565 : Changed = false;
10821 91554856 : do {
10822 91554856 : NoChange = true;
10823 91554856 : quad = start;
10824 261742897 : while ((quad <= end) && (quad != 0))
10825 : {
10826 170188215 : tokenno = CurrentQuadToken;
10827 170188215 : if (tokenno == 0)
10828 : {
10829 3433316 : tokenno = M2Quads_QuadToTokenNo (quad);
10830 : }
10831 170188215 : if (M2Options_GetDebugTraceQuad ())
10832 : {
10833 0 : M2Printf_printf0 ((const char *) "examining fold: ", 16);
10834 0 : M2Quads_DisplayQuad (quad);
10835 : }
10836 170188215 : M2Quads_GetQuadtok (quad, &op, &op1, &op2, &op3, &op1pos, &op2pos, &op3pos);
10837 170188215 : switch (op)
10838 : {
10839 9444 : case M2Quads_StandardFunctionOp:
10840 9444 : FoldStandardFunction (tokenno, p, quad, op1, op2, op3);
10841 9444 : break;
10842 :
10843 27520 : case M2Quads_BuiltinConstOp:
10844 27520 : FoldBuiltinConst (tokenno, p, quad, op1, op3);
10845 27520 : break;
10846 :
10847 360 : case M2Quads_BuiltinTypeInfoOp:
10848 360 : FoldBuiltinTypeInfo (tokenno, p, quad, op1, op2, op3);
10849 360 : break;
10850 :
10851 14562 : case M2Quads_LogicalOrOp:
10852 14562 : FoldSetOr (tokenno, p, quad, op1, op2, op3);
10853 14562 : break;
10854 :
10855 3684 : case M2Quads_LogicalAndOp:
10856 3684 : FoldSetAnd (tokenno, p, quad, op1, op2, op3);
10857 3684 : break;
10858 :
10859 664 : case M2Quads_LogicalXorOp:
10860 664 : FoldSymmetricDifference (tokenno, p, quad, op1, op2, op3);
10861 664 : break;
10862 :
10863 5049648 : case M2Quads_BecomesOp:
10864 5049648 : FoldBecomes (p, bb, quad);
10865 5049648 : break;
10866 :
10867 0 : case M2Quads_ArithAddOp:
10868 0 : FoldArithAdd (op1pos, p, quad, op1, op2, op3);
10869 0 : break;
10870 :
10871 396940 : case M2Quads_AddOp:
10872 396940 : FoldAdd (op1pos, p, quad, op1, op2, op3);
10873 396940 : break;
10874 :
10875 164904 : case M2Quads_SubOp:
10876 164904 : FoldSub (op1pos, p, quad, op1, op2, op3);
10877 164904 : break;
10878 :
10879 109726 : case M2Quads_MultOp:
10880 109726 : FoldMult (op1pos, p, quad, op1, op2, op3);
10881 109726 : break;
10882 :
10883 14784 : case M2Quads_DivM2Op:
10884 14784 : FoldDivM2 (op1pos, p, quad, op1, op2, op3);
10885 14784 : break;
10886 :
10887 25942 : case M2Quads_ModM2Op:
10888 25942 : FoldModM2 (op1pos, p, quad, op1, op2, op3);
10889 25942 : break;
10890 :
10891 11100 : case M2Quads_DivTruncOp:
10892 11100 : FoldDivTrunc (op1pos, p, quad, op1, op2, op3);
10893 11100 : break;
10894 :
10895 96 : case M2Quads_ModTruncOp:
10896 96 : FoldModTrunc (op1pos, p, quad, op1, op2, op3);
10897 96 : break;
10898 :
10899 0 : case M2Quads_DivCeilOp:
10900 0 : FoldDivCeil (op1pos, p, quad, op1, op2, op3);
10901 0 : break;
10902 :
10903 0 : case M2Quads_ModCeilOp:
10904 0 : FoldModCeil (op1pos, p, quad, op1, op2, op3);
10905 0 : break;
10906 :
10907 0 : case M2Quads_DivFloorOp:
10908 0 : FoldDivFloor (op1pos, p, quad, op1, op2, op3);
10909 0 : break;
10910 :
10911 0 : case M2Quads_ModFloorOp:
10912 0 : FoldModFloor (op1pos, p, quad, op1, op2, op3);
10913 0 : break;
10914 :
10915 39109 : case M2Quads_NegateOp:
10916 39109 : FoldNegate (op1pos, p, quad, op1, op3);
10917 39109 : break;
10918 :
10919 7416 : case M2Quads_SizeOp:
10920 7416 : FoldSize (tokenno, p, quad, op1, op2, op3);
10921 7416 : break;
10922 :
10923 : case M2Quads_RecordFieldOp:
10924 : FoldRecordField (tokenno, p, quad, op1, op2, op3);
10925 : break;
10926 :
10927 1227993 : case M2Quads_HighOp:
10928 1227993 : FoldHigh (tokenno, p, quad, op1, op2, op3);
10929 1227993 : break;
10930 :
10931 10048 : case M2Quads_ElementSizeOp:
10932 10048 : FoldElementSize (tokenno, p, quad, op1, op2);
10933 10048 : break;
10934 :
10935 360284 : case M2Quads_ConvertOp:
10936 360284 : FoldConvert (tokenno, p, quad, op1, op2, op3);
10937 360284 : break;
10938 :
10939 11030 : case M2Quads_CoerceOp:
10940 11030 : FoldCoerce (tokenno, p, quad, op1, op2, op3);
10941 11030 : break;
10942 :
10943 1500 : case M2Quads_CastOp:
10944 1500 : FoldCast (tokenno, p, quad, op1, op2, op3);
10945 1500 : break;
10946 :
10947 27286 : case M2Quads_InclOp:
10948 27286 : FoldIncl (tokenno, p, quad, op1, op3);
10949 27286 : break;
10950 :
10951 15538 : case M2Quads_ExclOp:
10952 15538 : FoldExcl (tokenno, p, quad, op1, op3);
10953 15538 : break;
10954 :
10955 680761 : case M2Quads_IfEquOp:
10956 680761 : FoldIfEqu (tokenno, quad, op1, op2, op3);
10957 680761 : break;
10958 :
10959 336237 : case M2Quads_IfNotEquOp:
10960 336237 : FoldIfNotEqu (tokenno, quad, op1, op2, op3);
10961 336237 : break;
10962 :
10963 36982 : case M2Quads_IfLessOp:
10964 36982 : FoldIfLess (tokenno, quad, op1, op2, op3);
10965 36982 : break;
10966 :
10967 30992 : case M2Quads_IfLessEquOp:
10968 30992 : FoldIfLessEqu (tokenno, quad, op1, op2, op3);
10969 30992 : break;
10970 :
10971 28024 : case M2Quads_IfGreOp:
10972 28024 : FoldIfGre (tokenno, quad, op1, op2, op3);
10973 28024 : break;
10974 :
10975 47074 : case M2Quads_IfGreEquOp:
10976 47074 : FoldIfGreEqu (tokenno, quad, op1, op2, op3);
10977 47074 : break;
10978 :
10979 53404 : case M2Quads_IfInOp:
10980 53404 : FoldIfIn (tokenno, quad, op1, op2, op3);
10981 53404 : break;
10982 :
10983 9056 : case M2Quads_IfNotInOp:
10984 9056 : FoldIfNotIn (tokenno, quad, op1, op2, op3);
10985 9056 : break;
10986 :
10987 27654 : case M2Quads_LogicalShiftOp:
10988 27654 : FoldSetShift (tokenno, p, quad, op1, op2, op3);
10989 27654 : break;
10990 :
10991 23892 : case M2Quads_LogicalRotateOp:
10992 23892 : FoldSetRotate (tokenno, p, quad, op1, op2, op3);
10993 23892 : break;
10994 :
10995 7490673 : case M2Quads_ParamOp:
10996 7490673 : FoldBuiltinFunction (tokenno, p, quad, op1, op2, op3);
10997 7490673 : break;
10998 :
10999 14154527 : case M2Quads_RangeCheckOp:
11000 14154527 : FoldRange (tokenno, quad, op3);
11001 14154527 : break;
11002 :
11003 9844092 : case M2Quads_StatementNoteOp:
11004 9844092 : FoldStatementNote (op3);
11005 9844092 : break;
11006 :
11007 72 : case M2Quads_StringLengthOp:
11008 72 : FoldStringLength (quad, p);
11009 72 : break;
11010 :
11011 33949 : case M2Quads_StringConvertM2nulOp:
11012 33949 : FoldStringConvertM2nul (quad, p);
11013 33949 : break;
11014 :
11015 9583 : case M2Quads_StringConvertCnulOp:
11016 9583 : FoldStringConvertCnul (quad, p);
11017 9583 : break;
11018 :
11019 14950 : case M2Quads_LastForIteratorOp:
11020 14950 : FoldLastForIterator (quad, p);
11021 14950 : break;
11022 :
11023 :
11024 : default:
11025 : break;
11026 : }
11027 : /* Ignore quadruple as it is not associated with a constant expression. */
11028 170188041 : quad = M2Quads_GetNextQuad (quad);
11029 : }
11030 91554682 : if (! NoChange)
11031 : {
11032 141291 : Changed = true;
11033 : }
11034 91554682 : } while (! (NoChange));
11035 91413391 : return Changed;
11036 : /* static analysis guarentees a RETURN statement will be used before here. */
11037 : __builtin_unreachable ();
11038 : }
11039 :
11040 :
11041 : /*
11042 : GetHighFromUnbounded - returns a Tree containing the value of
11043 : param.HIGH.
11044 : */
11045 :
11046 21618 : extern "C" tree M2GenGCC_GetHighFromUnbounded (location_t location, unsigned int dim, unsigned int param)
11047 : {
11048 21618 : unsigned int UnboundedType;
11049 21618 : unsigned int ArrayType;
11050 21618 : unsigned int HighField;
11051 21618 : tree HighTree;
11052 21618 : unsigned int accessibleDim;
11053 :
11054 : /* remainingDim : CARDINAL ; */
11055 21618 : UnboundedType = SymbolTable_GetType (param);
11056 21618 : M2Debug_Assert (SymbolTable_IsUnbounded (UnboundedType));
11057 21618 : ArrayType = SymbolTable_GetType (UnboundedType);
11058 21618 : HighField = SymbolTable_GetUnboundedHighOffset (UnboundedType, dim);
11059 21618 : if (HighField == SymbolTable_NulSym)
11060 : {
11061 : /* It might be a dynamic array of static arrays,
11062 : so lets see if there is an earlier dimension available. */
11063 : accessibleDim = dim;
11064 0 : while ((HighField == SymbolTable_NulSym) && (accessibleDim > 1))
11065 : {
11066 0 : accessibleDim -= 1;
11067 0 : HighField = SymbolTable_GetUnboundedHighOffset (UnboundedType, accessibleDim);
11068 : }
11069 0 : if (HighField == SymbolTable_NulSym)
11070 : {
11071 0 : M2MetaError_MetaError1 ((const char *) "{%EkHIGH} dimension number {%1N} for array does not exist", 57, dim);
11072 0 : return m2expr_GetCardinalZero (location);
11073 : }
11074 : else
11075 : {
11076 0 : HighTree = BuildHighFromStaticArray (location, ArrayType); /* remainingDim, */
11077 0 : if (HighTree == NULL)
11078 : {
11079 0 : M2MetaError_MetaError1 ((const char *) "{%EkHIGH} dimension number {%1N} for array does not exist", 57, dim);
11080 0 : return m2expr_GetCardinalZero (location);
11081 : }
11082 : return HighTree;
11083 : }
11084 : }
11085 : else
11086 : {
11087 21618 : return m2expr_BuildComponentRef (location, SymbolConversion_Mod2Gcc (param), SymbolConversion_Mod2Gcc (HighField));
11088 : }
11089 : /* static analysis guarentees a RETURN statement will be used before here. */
11090 : __builtin_unreachable ();
11091 : }
11092 :
11093 :
11094 : /*
11095 : StringToChar - if type=Char and str is a string (of size <= 1)
11096 : then convert the string into a character constant.
11097 : */
11098 :
11099 1143257 : extern "C" tree M2GenGCC_StringToChar (tree t, unsigned int type, unsigned int str)
11100 : {
11101 1143257 : DynamicStrings_String s;
11102 1143257 : NameKey_Name n;
11103 1143257 : unsigned int tokenno;
11104 1143257 : location_t location;
11105 :
11106 1143257 : tokenno = SymbolTable_GetDeclaredMod (str);
11107 1143257 : location = M2LexBuf_TokenToLocation (tokenno);
11108 1143257 : type = SymbolTable_SkipType (type);
11109 1143257 : if ((type == M2Base_Char) && (SymbolTable_IsConstString (str)))
11110 : {
11111 12552 : M2Debug_Assert (SymbolTable_IsConstStringKnown (str));
11112 12552 : if ((SymbolTable_GetStringLength (tokenno, str)) == 0)
11113 : {
11114 108 : s = DynamicStrings_InitString ((const char *) "", 0);
11115 108 : t = m2type_BuildCharConstant (location, reinterpret_cast <const char * > (s));
11116 108 : s = DynamicStrings_KillString (s);
11117 : }
11118 12444 : else if ((SymbolTable_GetStringLength (tokenno, str)) > 1)
11119 : {
11120 : /* avoid dangling else. */
11121 0 : n = SymbolTable_GetSymName (str);
11122 0 : M2Error_WriteFormat1 ((const char *) "type incompatibility, attempting to use a string ('%a') when a CHAR is expected", 79, (const unsigned char *) &n, (sizeof (n)-1));
11123 0 : s = DynamicStrings_InitString ((const char *) "", 0); /* Do something safe. */
11124 0 : t = m2type_BuildCharConstant (location, reinterpret_cast <const char * > (s)); /* Do something safe. */
11125 : }
11126 12552 : s = DynamicStrings_InitStringCharStar (NameKey_KeyToCharStar (SymbolTable_GetString (str)));
11127 12552 : s = DynamicStrings_Slice (s, 0, 1);
11128 12552 : t = m2type_BuildCharConstant (location, const_cast <const char * > (static_cast <char * > (DynamicStrings_string (s))));
11129 12552 : s = DynamicStrings_KillString (s);
11130 : }
11131 1143257 : return t;
11132 : /* static analysis guarentees a RETURN statement will be used before here. */
11133 : __builtin_unreachable ();
11134 : }
11135 :
11136 :
11137 : /*
11138 : LValueToGenericPtr - returns a Tree representing symbol, sym.
11139 : It coerces a lvalue into an internal pointer type
11140 : */
11141 :
11142 529808 : extern "C" tree M2GenGCC_LValueToGenericPtr (location_t location, unsigned int sym)
11143 : {
11144 529808 : tree t;
11145 :
11146 529808 : t = SymbolConversion_Mod2Gcc (sym);
11147 529808 : if (t == NULL)
11148 : {
11149 0 : M2Error_InternalError ((const char *) "expecting symbol to be resolved", 31);
11150 : }
11151 529808 : if ((SymbolTable_GetMode (sym)) == SymbolTable_LeftValue)
11152 : {
11153 540 : t = m2convert_BuildConvert (location, m2type_GetPointerType (), t, false);
11154 : }
11155 529808 : return t;
11156 : /* static analysis guarentees a RETURN statement will be used before here. */
11157 : __builtin_unreachable ();
11158 : }
11159 :
11160 :
11161 : /*
11162 : ZConstToTypedConst - checks whether op1 and op2 are constants and
11163 : coerces, t, appropriately.
11164 : */
11165 :
11166 8464 : extern "C" tree M2GenGCC_ZConstToTypedConst (tree t, unsigned int op1, unsigned int op2)
11167 : {
11168 8464 : location_t location;
11169 :
11170 8464 : location = M2LexBuf_TokenToLocation (SymbolTable_GetDeclaredMod (op2));
11171 8464 : if ((SymbolTable_IsConst (op1)) && (SymbolTable_IsConst (op2)))
11172 : {
11173 : /* leave, Z type, alone */
11174 : return t;
11175 : }
11176 4028 : else if (SymbolTable_IsConst (op1))
11177 : {
11178 : /* avoid dangling else. */
11179 2752 : if ((SymbolTable_GetMode (op2)) == SymbolTable_LeftValue)
11180 : {
11181 : /* convert, Z type const into type of non constant operand */
11182 0 : return m2convert_BuildConvert (location, m2type_GetPointerType (), t, false);
11183 : }
11184 : else
11185 : {
11186 : /* convert, Z type const into type of non constant operand */
11187 2752 : return m2convert_BuildConvert (location, SymbolConversion_Mod2Gcc (FindType (op2)), t, false);
11188 : }
11189 : }
11190 1276 : else if (SymbolTable_IsConst (op2))
11191 : {
11192 : /* avoid dangling else. */
11193 0 : if ((SymbolTable_GetMode (op1)) == SymbolTable_LeftValue)
11194 : {
11195 : /* convert, Z type const into type of non constant operand */
11196 0 : return m2convert_BuildConvert (location, m2type_GetPointerType (), t, false);
11197 : }
11198 : else
11199 : {
11200 : /* convert, Z type const into type of non constant operand */
11201 0 : return m2convert_BuildConvert (location, SymbolConversion_Mod2Gcc (FindType (op1)), t, false);
11202 : }
11203 : }
11204 : else
11205 : {
11206 : /* avoid dangling else. */
11207 : /* neither operands are constants, leave alone */
11208 : return t;
11209 : }
11210 : /* static analysis guarentees a RETURN statement will be used before here. */
11211 : __builtin_unreachable ();
11212 : }
11213 :
11214 :
11215 : /*
11216 : PrepareCopyString - returns two trees:
11217 : length number of bytes to be copied (including the nul if room)
11218 : srcTreeType the new string type (with the extra nul character).
11219 :
11220 : Pre condition: destStrType the dest type string.
11221 : src is the original string (without a nul)
11222 : to be copied.
11223 : Post condition: TRUE or FALSE is returned.
11224 : if true length and srcTreeType will be assigned
11225 : else length is set to the maximum length to be
11226 : copied and srcTree is set to the max length
11227 : which fits in dest.
11228 : */
11229 :
11230 3312 : extern "C" bool M2GenGCC_PrepareCopyString (unsigned int tokenno, tree *length, tree *srcTree, unsigned int src, unsigned int destStrType)
11231 : {
11232 3312 : location_t location;
11233 3312 : int intLength;
11234 :
11235 3312 : location = M2LexBuf_TokenToLocation (tokenno);
11236 3312 : M2Debug_Assert (SymbolTable_IsArray (SymbolTable_SkipType (destStrType)));
11237 : /* Handle string assignments:
11238 : VAR
11239 : str: ARRAY [0..10] OF CHAR ;
11240 : ch : CHAR ;
11241 :
11242 : str := 'abcde' but not ch := 'a'
11243 : */
11244 3312 : if ((SymbolTable_GetType (src)) == M2Base_Char)
11245 : {
11246 : /* avoid dangling else. */
11247 : /*
11248 : * Create string from char and add nul to the end, nul is
11249 : * added by BuildStringConstant. In modula-2 an array must
11250 : * have at least one element.
11251 : */
11252 192 : (*length) = m2expr_GetIntegerOne (location);
11253 192 : M2ALU_PushIntegerTree (FindSize (tokenno, src));
11254 192 : M2ALU_PushIntegerTree (FindSize (tokenno, destStrType));
11255 192 : if (M2ALU_Less (tokenno))
11256 : {
11257 : /* There is room for the extra <nul> character. */
11258 156 : (*length) = m2expr_BuildAdd (location, (*length), m2expr_GetIntegerOne (location), false);
11259 : }
11260 : }
11261 : else
11262 : {
11263 3120 : M2ALU_PushIntegerTree (FindSize (tokenno, src));
11264 3120 : M2ALU_PushIntegerTree (FindSize (tokenno, destStrType));
11265 3120 : if (M2ALU_Less (tokenno))
11266 : {
11267 : /* There is room for the extra <nul> character. */
11268 2952 : (*length) = m2expr_BuildAdd (location, FindSize (tokenno, src), m2expr_GetIntegerOne (location), false);
11269 2952 : (*srcTree) = SymbolConversion_Mod2Gcc (src);
11270 : }
11271 : else
11272 : {
11273 : /* We need to truncate the <nul> at least. */
11274 168 : (*length) = FindSize (tokenno, destStrType);
11275 168 : M2ALU_PushIntegerTree (FindSize (tokenno, src));
11276 168 : M2ALU_PushIntegerTree ((*length));
11277 : /* Greater or Equal so return max characters in the array. */
11278 168 : if (M2ALU_Gre (tokenno))
11279 : {
11280 : /* Create a new string without non nul characters to be gimple safe.
11281 : But return FALSE indicating an overflow. */
11282 12 : intLength = m2expr_GetCstInteger ((*length));
11283 12 : (*srcTree) = m2decl_BuildStringConstant (const_cast <const char * > (static_cast <char * > (NameKey_KeyToCharStar (SymbolTable_GetString (src)))), intLength);
11284 12 : (*srcTree) = m2convert_ConvertString (SymbolConversion_Mod2Gcc (destStrType), (*srcTree));
11285 12 : return false;
11286 : }
11287 : }
11288 : }
11289 3300 : intLength = m2expr_GetCstInteger ((*length));
11290 3300 : (*srcTree) = m2decl_BuildStringConstant (const_cast <const char * > (static_cast <char * > (NameKey_KeyToCharStar (SymbolTable_GetString (src)))), intLength);
11291 3300 : (*srcTree) = m2convert_ConvertString (SymbolConversion_Mod2Gcc (destStrType), (*srcTree));
11292 3300 : return true;
11293 : /* static analysis guarentees a RETURN statement will be used before here. */
11294 : __builtin_unreachable ();
11295 : }
11296 :
11297 14952 : extern "C" void _M2_M2GenGCC_init (__attribute__((unused)) int argc, __attribute__((unused)) char *argv[], __attribute__((unused)) char *envp[])
11298 : {
11299 14952 : Init ();
11300 14952 : }
11301 :
11302 0 : extern "C" void _M2_M2GenGCC_fini (__attribute__((unused)) int argc, __attribute__((unused)) char *argv[], __attribute__((unused)) char *envp[])
11303 : {
11304 0 : }
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