Line data Source code
1 : /* Define builtin-in macros for the C family front ends.
2 : Copyright (C) 2002-2026 Free Software Foundation, Inc.
3 :
4 : This file is part of GCC.
5 :
6 : GCC is free software; you can redistribute it and/or modify it under
7 : the terms of the GNU General Public License as published by the Free
8 : Software Foundation; either version 3, or (at your option) any later
9 : version.
10 :
11 : GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12 : WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 : FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 : for more details.
15 :
16 : You should have received a copy of the GNU General Public License
17 : along with GCC; see the file COPYING3. If not see
18 : <http://www.gnu.org/licenses/>. */
19 :
20 : #include "config.h"
21 : #include "system.h"
22 : #include "coretypes.h"
23 : #include "target.h"
24 : #include "c-common.h"
25 : #include "memmodel.h"
26 : #include "tm_p.h" /* For TARGET_CPU_CPP_BUILTINS & friends. */
27 : #include "stringpool.h"
28 : #include "stor-layout.h"
29 : #include "flags.h"
30 : #include "c-pragma.h"
31 : #include "output.h" /* For user_label_prefix. */
32 : #include "debug.h" /* For dwarf2out_do_cfi_asm. */
33 : #include "common/common-target.h"
34 : #include "cppbuiltin.h"
35 : #include "configargs.h"
36 :
37 : #ifndef TARGET_OS_CPP_BUILTINS
38 : # define TARGET_OS_CPP_BUILTINS()
39 : #endif
40 :
41 : #ifndef TARGET_OBJFMT_CPP_BUILTINS
42 : # define TARGET_OBJFMT_CPP_BUILTINS()
43 : #endif
44 :
45 : #ifndef REGISTER_PREFIX
46 : #define REGISTER_PREFIX ""
47 : #endif
48 :
49 : /* Non-static as some targets don't use it. */
50 : static void builtin_define_with_hex_fp_value (const char *, tree,
51 : int, const char *,
52 : const char *,
53 : const char *);
54 : static void builtin_define_stdint_macros (void);
55 : static void builtin_define_constants (const char *, tree);
56 : static void builtin_define_type_max (const char *, tree);
57 : static void builtin_define_type_minmax (const char *, const char *, tree);
58 : static void builtin_define_type_width (const char *, tree, tree);
59 : static void builtin_define_float_constants (const char *,
60 : const char *,
61 : const char *,
62 : const char *,
63 : tree);
64 :
65 : /* Return true if MODE provides a fast multiply/add (FMA) builtin function.
66 : Originally this function used the fma optab, but that doesn't work with
67 : -save-temps, so just rely on the HAVE_fma macros for the standard floating
68 : point types. */
69 :
70 : static bool
71 2115130 : mode_has_fma (machine_mode mode)
72 : {
73 2115130 : switch (mode)
74 : {
75 : #ifdef HAVE_fmasf4
76 423026 : case E_SFmode:
77 423026 : return !!HAVE_fmasf4;
78 : #endif
79 :
80 : #ifdef HAVE_fmadf4
81 634555 : case E_DFmode:
82 634555 : return !!HAVE_fmadf4;
83 : #endif
84 :
85 : #ifdef HAVE_fmakf4 /* PowerPC if long double != __float128. */
86 : case E_KFmode:
87 : return !!HAVE_fmakf4;
88 : #endif
89 :
90 : #ifdef HAVE_fmaxf4
91 : case E_XFmode:
92 : return !!HAVE_fmaxf4;
93 : #endif
94 :
95 : #ifdef HAVE_fmatf4
96 : case E_TFmode:
97 : return !!HAVE_fmatf4;
98 : #endif
99 :
100 : default:
101 : break;
102 : }
103 :
104 : return false;
105 : }
106 :
107 : /* Define NAME with value TYPE size_unit. */
108 : void
109 840678 : builtin_define_type_sizeof (const char *name, tree type)
110 : {
111 1681356 : builtin_define_with_int_value (name,
112 840678 : tree_to_uhwi (TYPE_SIZE_UNIT (type)));
113 840678 : }
114 :
115 : /* Define the float.h constants for TYPE using NAME_PREFIX, FP_SUFFIX,
116 : and FP_CAST. */
117 : static void
118 2115130 : builtin_define_float_constants (const char *name_prefix,
119 : const char *fp_suffix,
120 : const char *fp_cast,
121 : const char *fma_suffix,
122 : tree type)
123 : {
124 : /* Used to convert radix-based values to base 10 values in several cases.
125 :
126 : In the max_exp -> max_10_exp conversion for 128-bit IEEE, we need at
127 : least 6 significant digits for correct results. Using the fraction
128 : formed by (log(2)*1e6)/(log(10)*1e6) overflows a 32-bit integer as an
129 : intermediate; perhaps someone can find a better approximation, in the
130 : mean time, I suspect using doubles won't harm the bootstrap here. */
131 :
132 2115130 : const double log10_2 = .30102999566398119521;
133 2115130 : double log10_b;
134 2115130 : const struct real_format *fmt;
135 2115130 : const struct real_format *widefmt;
136 :
137 2115130 : char name[64], buf[128];
138 2115130 : int dig, min_10_exp, max_10_exp;
139 2115130 : int decimal_dig;
140 2115130 : int type_decimal_dig;
141 :
142 2115130 : fmt = REAL_MODE_FORMAT (TYPE_MODE (type));
143 2115130 : gcc_assert (fmt->b != 10);
144 2115130 : widefmt = REAL_MODE_FORMAT (TYPE_MODE (long_double_type_node));
145 2115130 : gcc_assert (widefmt->b != 10);
146 16921040 : for (int i = 0; i < NUM_FLOATN_NX_TYPES; i++)
147 : {
148 14805910 : tree wtype = FLOATN_NX_TYPE_NODE (i);
149 14805910 : if (wtype != NULL_TREE)
150 : {
151 12690780 : const struct real_format *wfmt
152 12690780 : = REAL_MODE_FORMAT (TYPE_MODE (wtype));
153 12690780 : gcc_assert (wfmt->b != 10);
154 12690780 : if (wfmt->p > widefmt->p)
155 14805910 : widefmt = wfmt;
156 : }
157 : }
158 :
159 : /* The radix of the exponent representation. */
160 2115130 : if (type == float_type_node)
161 211513 : builtin_define_with_int_value ("__FLT_RADIX__", fmt->b);
162 2115130 : log10_b = log10_2;
163 :
164 : /* The number of radix digits, p, in the floating-point significand. */
165 2115130 : sprintf (name, "__%s_MANT_DIG__", name_prefix);
166 2115130 : builtin_define_with_int_value (name, fmt->p);
167 :
168 : /* The number of decimal digits, q, such that any floating-point number
169 : with q decimal digits can be rounded into a floating-point number with
170 : p radix b digits and back again without change to the q decimal digits,
171 :
172 : p log10 b if b is a power of 10
173 : floor((p - 1) log10 b) otherwise
174 : */
175 2115130 : dig = (fmt->p - 1) * log10_b;
176 2115130 : sprintf (name, "__%s_DIG__", name_prefix);
177 2115130 : builtin_define_with_int_value (name, dig);
178 :
179 : /* The minimum negative int x such that b**(x-1) is a normalized float. */
180 2115130 : sprintf (name, "__%s_MIN_EXP__", name_prefix);
181 2115130 : sprintf (buf, "(%d)", fmt->emin);
182 2115130 : builtin_define_with_value (name, buf, 0);
183 :
184 : /* The minimum negative int x such that 10**x is a normalized float,
185 :
186 : ceil (log10 (b ** (emin - 1)))
187 : = ceil (log10 (b) * (emin - 1))
188 :
189 : Recall that emin is negative, so the integer truncation calculates
190 : the ceiling, not the floor, in this case. */
191 2115130 : min_10_exp = (fmt->emin - 1) * log10_b;
192 2115130 : sprintf (name, "__%s_MIN_10_EXP__", name_prefix);
193 2115130 : sprintf (buf, "(%d)", min_10_exp);
194 2115130 : builtin_define_with_value (name, buf, 0);
195 :
196 : /* The maximum int x such that b**(x-1) is a representable float. */
197 2115130 : sprintf (name, "__%s_MAX_EXP__", name_prefix);
198 2115130 : builtin_define_with_int_value (name, fmt->emax);
199 :
200 : /* The maximum int x such that 10**x is in the range of representable
201 : finite floating-point numbers,
202 :
203 : floor (log10((1 - b**-p) * b**emax))
204 : = floor (log10(1 - b**-p) + log10(b**emax))
205 : = floor (log10(1 - b**-p) + log10(b)*emax)
206 :
207 : The safest thing to do here is to just compute this number. But since
208 : we don't link cc1 with libm, we cannot. We could implement log10 here
209 : a series expansion, but that seems too much effort because:
210 :
211 : Note that the first term, for all extant p, is a number exceedingly close
212 : to zero, but slightly negative. Note that the second term is an integer
213 : scaling an irrational number, and that because of the floor we are only
214 : interested in its integral portion.
215 :
216 : In order for the first term to have any effect on the integral portion
217 : of the second term, the second term has to be exceedingly close to an
218 : integer itself (e.g. 123.000000000001 or something). Getting a result
219 : that close to an integer requires that the irrational multiplicand have
220 : a long series of zeros in its expansion, which doesn't occur in the
221 : first 20 digits or so of log10(b).
222 :
223 : Hand-waving aside, crunching all of the sets of constants above by hand
224 : does not yield a case for which the first term is significant, which
225 : in the end is all that matters. */
226 2115130 : max_10_exp = fmt->emax * log10_b;
227 2115130 : sprintf (name, "__%s_MAX_10_EXP__", name_prefix);
228 2115130 : builtin_define_with_int_value (name, max_10_exp);
229 :
230 : /* The number of decimal digits, n, such that any floating-point number
231 : can be rounded to n decimal digits and back again without change to
232 : the value.
233 :
234 : p * log10(b) if b is a power of 10
235 : ceil(1 + p * log10(b)) otherwise
236 :
237 : The only macro we care about is this number for the widest supported
238 : floating type, but we want this value for rendering constants below. */
239 2115130 : {
240 2115130 : double d_decimal_dig
241 2115130 : = 1 + (fmt->p < widefmt->p ? widefmt->p : fmt->p) * log10_b;
242 2115130 : decimal_dig = d_decimal_dig;
243 2115130 : if (decimal_dig < d_decimal_dig)
244 2115130 : decimal_dig++;
245 : }
246 : /* Similar, for this type rather than long double. */
247 2115130 : {
248 2115130 : double type_d_decimal_dig = 1 + fmt->p * log10_b;
249 2115130 : type_decimal_dig = type_d_decimal_dig;
250 2115130 : if (type_decimal_dig < type_d_decimal_dig)
251 2115130 : type_decimal_dig++;
252 : }
253 : /* Define __DECIMAL_DIG__ to the value for long double to be
254 : compatible with C99 and C11; see DR#501 and N2108. */
255 2115130 : if (type == long_double_type_node)
256 211513 : builtin_define_with_int_value ("__DECIMAL_DIG__", type_decimal_dig);
257 2115130 : sprintf (name, "__%s_DECIMAL_DIG__", name_prefix);
258 2115130 : builtin_define_with_int_value (name, type_decimal_dig);
259 :
260 : /* Since, for the supported formats, B is always a power of 2, we
261 : construct the following numbers directly as a hexadecimal
262 : constants. */
263 2115130 : get_max_float (fmt, buf, sizeof (buf), false);
264 :
265 2115130 : sprintf (name, "__%s_MAX__", name_prefix);
266 2115130 : builtin_define_with_hex_fp_value (name, type, decimal_dig, buf, fp_suffix, fp_cast);
267 :
268 2115130 : get_max_float (fmt, buf, sizeof (buf), true);
269 :
270 2115130 : sprintf (name, "__%s_NORM_MAX__", name_prefix);
271 2115130 : builtin_define_with_hex_fp_value (name, type, decimal_dig, buf, fp_suffix, fp_cast);
272 :
273 : /* The minimum normalized positive floating-point number,
274 : b**(emin-1). */
275 2115130 : sprintf (name, "__%s_MIN__", name_prefix);
276 2115130 : sprintf (buf, "0x1p%d", fmt->emin - 1);
277 2115130 : builtin_define_with_hex_fp_value (name, type, decimal_dig, buf, fp_suffix, fp_cast);
278 :
279 : /* The difference between 1 and the least value greater than 1 that is
280 : representable in the given floating point type, b**(1-p). */
281 2115130 : sprintf (name, "__%s_EPSILON__", name_prefix);
282 2115130 : if (fmt->pnan < fmt->p && (c_dialect_cxx () || !flag_isoc23))
283 : /* This is an IBM extended double format, so 1.0 + any double is
284 : representable precisely. */
285 0 : sprintf (buf, "0x1p%d", fmt->emin - fmt->p);
286 : else
287 2115130 : sprintf (buf, "0x1p%d", 1 - fmt->p);
288 2115130 : builtin_define_with_hex_fp_value (name, type, decimal_dig, buf, fp_suffix, fp_cast);
289 :
290 : /* For C++ std::numeric_limits<T>::denorm_min and C11 *_TRUE_MIN.
291 : The minimum denormalized positive floating-point number, b**(emin-p).
292 : The minimum normalized positive floating-point number for formats
293 : that don't support denormals. */
294 2115130 : sprintf (name, "__%s_DENORM_MIN__", name_prefix);
295 2115130 : sprintf (buf, "0x1p%d", fmt->emin - (fmt->has_denorm ? fmt->p : 1));
296 2115130 : builtin_define_with_hex_fp_value (name, type, decimal_dig,
297 : buf, fp_suffix, fp_cast);
298 :
299 2115130 : sprintf (name, "__%s_HAS_DENORM__", name_prefix);
300 2115130 : builtin_define_with_value (name, fmt->has_denorm ? "1" : "0", 0);
301 :
302 : /* For C++ std::numeric_limits<T>::has_infinity. */
303 2115130 : sprintf (name, "__%s_HAS_INFINITY__", name_prefix);
304 2115130 : builtin_define_with_int_value (name,
305 8460520 : MODE_HAS_INFINITIES (TYPE_MODE (type)));
306 : /* For C++ std::numeric_limits<T>::has_quiet_NaN. We do not have a
307 : predicate to distinguish a target that has both quiet and
308 : signalling NaNs from a target that has only quiet NaNs or only
309 : signalling NaNs, so we assume that a target that has any kind of
310 : NaN has quiet NaNs. */
311 2115130 : sprintf (name, "__%s_HAS_QUIET_NAN__", name_prefix);
312 8460520 : builtin_define_with_int_value (name, MODE_HAS_NANS (TYPE_MODE (type)));
313 :
314 : /* Note whether we have fast FMA. */
315 2115130 : if (mode_has_fma (TYPE_MODE (type)) && fma_suffix != NULL)
316 : {
317 26195 : sprintf (name, "__FP_FAST_FMA%s", fma_suffix);
318 26195 : builtin_define_with_int_value (name, 1);
319 : }
320 :
321 : /* For C23 *_IS_IEC_60559. 0 means the type does not match an IEC
322 : 60559 format, 1 that it matches a format but not necessarily
323 : operations. */
324 2115130 : sprintf (name, "__%s_IS_IEC_60559__", name_prefix);
325 2115130 : builtin_define_with_int_value (name, fmt->ieee_bits != 0);
326 2115130 : }
327 :
328 : /* Define __DECx__ constants for TYPE using NAME_PREFIX and SUFFIX. */
329 : static void
330 846052 : builtin_define_decimal_float_constants (const char *name_prefix,
331 : const char *suffix,
332 : tree type)
333 : {
334 846052 : const struct real_format *fmt;
335 846052 : char name[64], buf[128], *p;
336 846052 : int digits;
337 :
338 846052 : fmt = REAL_MODE_FORMAT (TYPE_MODE (type));
339 :
340 : /* The number of radix digits, p, in the significand. */
341 846052 : sprintf (name, "__%s_MANT_DIG__", name_prefix);
342 846052 : builtin_define_with_int_value (name, fmt->p);
343 :
344 : /* The minimum negative int x such that b**(x-1) is a normalized float. */
345 846052 : sprintf (name, "__%s_MIN_EXP__", name_prefix);
346 846052 : sprintf (buf, "(%d)", fmt->emin);
347 846052 : builtin_define_with_value (name, buf, 0);
348 :
349 : /* The maximum int x such that b**(x-1) is a representable float. */
350 846052 : sprintf (name, "__%s_MAX_EXP__", name_prefix);
351 846052 : builtin_define_with_int_value (name, fmt->emax);
352 :
353 : /* Compute the minimum representable value. */
354 846052 : sprintf (name, "__%s_MIN__", name_prefix);
355 846052 : sprintf (buf, "1E%d%s", fmt->emin - 1, suffix);
356 846052 : builtin_define_with_value (name, buf, 0);
357 :
358 : /* Compute the maximum representable value. */
359 846052 : sprintf (name, "__%s_MAX__", name_prefix);
360 846052 : get_max_float (fmt, buf, sizeof (buf) - strlen (suffix), false);
361 846052 : strcat (buf, suffix);
362 846052 : builtin_define_with_value (name, buf, 0);
363 :
364 : /* Compute epsilon (the difference between 1 and least value greater
365 : than 1 representable). */
366 846052 : sprintf (name, "__%s_EPSILON__", name_prefix);
367 846052 : sprintf (buf, "1E-%d%s", fmt->p - 1, suffix);
368 846052 : builtin_define_with_value (name, buf, 0);
369 :
370 : /* Minimum subnormal positive decimal value. */
371 846052 : sprintf (name, "__%s_SUBNORMAL_MIN__", name_prefix);
372 846052 : p = buf;
373 19247683 : for (digits = fmt->p; digits > 1; digits--)
374 : {
375 18401631 : *p++ = '0';
376 18401631 : if (digits == fmt->p)
377 846052 : *p++ = '.';
378 : }
379 846052 : *p = 0;
380 846052 : sprintf (&buf[fmt->p], "1E%d%s", fmt->emin - 1, suffix);
381 846052 : builtin_define_with_value (name, buf, 0);
382 846052 : }
383 :
384 : /* Define fixed-point constants for TYPE using NAME_PREFIX and SUFFIX. */
385 :
386 : static void
387 0 : builtin_define_fixed_point_constants (const char *name_prefix,
388 : const char *suffix,
389 : tree type)
390 : {
391 0 : char name[64], buf[256], *new_buf;
392 0 : int i, mod;
393 :
394 0 : sprintf (name, "__%s_FBIT__", name_prefix);
395 0 : builtin_define_with_int_value (name, TYPE_FBIT (type));
396 :
397 0 : sprintf (name, "__%s_IBIT__", name_prefix);
398 0 : builtin_define_with_int_value (name, TYPE_IBIT (type));
399 :
400 : /* If there is no suffix, defines are for fixed-point modes.
401 : We just return. */
402 0 : if (strcmp (suffix, "") == 0)
403 0 : return;
404 :
405 0 : if (TYPE_UNSIGNED (type))
406 : {
407 0 : sprintf (name, "__%s_MIN__", name_prefix);
408 0 : sprintf (buf, "0.0%s", suffix);
409 0 : builtin_define_with_value (name, buf, 0);
410 : }
411 : else
412 : {
413 0 : sprintf (name, "__%s_MIN__", name_prefix);
414 0 : if (ALL_ACCUM_MODE_P (TYPE_MODE (type)))
415 0 : sprintf (buf, "(-0X1P%d%s-0X1P%d%s)", TYPE_IBIT (type) - 1, suffix,
416 0 : TYPE_IBIT (type) - 1, suffix);
417 : else
418 0 : sprintf (buf, "(-0.5%s-0.5%s)", suffix, suffix);
419 0 : builtin_define_with_value (name, buf, 0);
420 : }
421 :
422 0 : sprintf (name, "__%s_MAX__", name_prefix);
423 0 : sprintf (buf, "0X");
424 0 : new_buf = buf + 2;
425 0 : mod = (TYPE_FBIT (type) + TYPE_IBIT (type)) % 4;
426 0 : if (mod)
427 0 : sprintf (new_buf++, "%x", (1 << mod) - 1);
428 0 : for (i = 0; i < (TYPE_FBIT (type) + TYPE_IBIT (type)) / 4; i++)
429 0 : sprintf (new_buf++, "F");
430 0 : sprintf (new_buf, "P-%d%s", TYPE_FBIT (type), suffix);
431 0 : builtin_define_with_value (name, buf, 0);
432 :
433 0 : sprintf (name, "__%s_EPSILON__", name_prefix);
434 0 : sprintf (buf, "0x1P-%d%s", TYPE_FBIT (type), suffix);
435 0 : builtin_define_with_value (name, buf, 0);
436 : }
437 :
438 : /* Define macros used by <stdint.h>. */
439 : static void
440 211513 : builtin_define_stdint_macros (void)
441 : {
442 423026 : builtin_define_type_max ("__INTMAX_MAX__", intmax_type_node);
443 211513 : builtin_define_constants ("__INTMAX_C", intmax_type_node);
444 423026 : builtin_define_type_max ("__UINTMAX_MAX__", uintmax_type_node);
445 211513 : builtin_define_constants ("__UINTMAX_C", uintmax_type_node);
446 211513 : builtin_define_type_width ("__INTMAX_WIDTH__", intmax_type_node,
447 : uintmax_type_node);
448 211513 : if (sig_atomic_type_node)
449 : {
450 211513 : builtin_define_type_minmax ("__SIG_ATOMIC_MIN__", "__SIG_ATOMIC_MAX__",
451 : sig_atomic_type_node);
452 211513 : builtin_define_type_width ("__SIG_ATOMIC_WIDTH__", sig_atomic_type_node,
453 : NULL_TREE);
454 : }
455 211513 : if (int8_type_node)
456 211513 : builtin_define_type_max ("__INT8_MAX__", int8_type_node);
457 211513 : if (int16_type_node)
458 211513 : builtin_define_type_max ("__INT16_MAX__", int16_type_node);
459 211513 : if (int32_type_node)
460 211513 : builtin_define_type_max ("__INT32_MAX__", int32_type_node);
461 211513 : if (int64_type_node)
462 211513 : builtin_define_type_max ("__INT64_MAX__", int64_type_node);
463 211513 : if (uint8_type_node)
464 211513 : builtin_define_type_max ("__UINT8_MAX__", uint8_type_node);
465 211513 : if (c_uint16_type_node)
466 211513 : builtin_define_type_max ("__UINT16_MAX__", c_uint16_type_node);
467 211513 : if (c_uint32_type_node)
468 211513 : builtin_define_type_max ("__UINT32_MAX__", c_uint32_type_node);
469 211513 : if (c_uint64_type_node)
470 211513 : builtin_define_type_max ("__UINT64_MAX__", c_uint64_type_node);
471 211513 : if (int_least8_type_node)
472 : {
473 423026 : builtin_define_type_max ("__INT_LEAST8_MAX__", int_least8_type_node);
474 211513 : builtin_define_constants ("__INT8_C", int_least8_type_node);
475 211513 : builtin_define_type_width ("__INT_LEAST8_WIDTH__", int_least8_type_node,
476 : uint_least8_type_node);
477 : }
478 211513 : if (int_least16_type_node)
479 : {
480 423026 : builtin_define_type_max ("__INT_LEAST16_MAX__", int_least16_type_node);
481 211513 : builtin_define_constants ("__INT16_C", int_least16_type_node);
482 211513 : builtin_define_type_width ("__INT_LEAST16_WIDTH__",
483 : int_least16_type_node,
484 : uint_least16_type_node);
485 : }
486 211513 : if (int_least32_type_node)
487 : {
488 423026 : builtin_define_type_max ("__INT_LEAST32_MAX__", int_least32_type_node);
489 211513 : builtin_define_constants ("__INT32_C", int_least32_type_node);
490 211513 : builtin_define_type_width ("__INT_LEAST32_WIDTH__",
491 : int_least32_type_node,
492 : uint_least32_type_node);
493 : }
494 211513 : if (int_least64_type_node)
495 : {
496 423026 : builtin_define_type_max ("__INT_LEAST64_MAX__", int_least64_type_node);
497 211513 : builtin_define_constants ("__INT64_C", int_least64_type_node);
498 211513 : builtin_define_type_width ("__INT_LEAST64_WIDTH__",
499 : int_least64_type_node,
500 : uint_least64_type_node);
501 : }
502 211513 : if (uint_least8_type_node)
503 : {
504 423026 : builtin_define_type_max ("__UINT_LEAST8_MAX__", uint_least8_type_node);
505 211513 : builtin_define_constants ("__UINT8_C", uint_least8_type_node);
506 : }
507 211513 : if (uint_least16_type_node)
508 : {
509 423026 : builtin_define_type_max ("__UINT_LEAST16_MAX__", uint_least16_type_node);
510 211513 : builtin_define_constants ("__UINT16_C", uint_least16_type_node);
511 : }
512 211513 : if (uint_least32_type_node)
513 : {
514 423026 : builtin_define_type_max ("__UINT_LEAST32_MAX__", uint_least32_type_node);
515 211513 : builtin_define_constants ("__UINT32_C", uint_least32_type_node);
516 : }
517 211513 : if (uint_least64_type_node)
518 : {
519 423026 : builtin_define_type_max ("__UINT_LEAST64_MAX__", uint_least64_type_node);
520 211513 : builtin_define_constants ("__UINT64_C", uint_least64_type_node);
521 : }
522 211513 : if (int_fast8_type_node)
523 : {
524 423026 : builtin_define_type_max ("__INT_FAST8_MAX__", int_fast8_type_node);
525 211513 : builtin_define_type_width ("__INT_FAST8_WIDTH__", int_fast8_type_node,
526 : uint_fast8_type_node);
527 : }
528 211513 : if (int_fast16_type_node)
529 : {
530 423026 : builtin_define_type_max ("__INT_FAST16_MAX__", int_fast16_type_node);
531 211513 : builtin_define_type_width ("__INT_FAST16_WIDTH__", int_fast16_type_node,
532 : uint_fast16_type_node);
533 : }
534 211513 : if (int_fast32_type_node)
535 : {
536 423026 : builtin_define_type_max ("__INT_FAST32_MAX__", int_fast32_type_node);
537 211513 : builtin_define_type_width ("__INT_FAST32_WIDTH__", int_fast32_type_node,
538 : uint_fast32_type_node);
539 : }
540 211513 : if (int_fast64_type_node)
541 : {
542 423026 : builtin_define_type_max ("__INT_FAST64_MAX__", int_fast64_type_node);
543 211513 : builtin_define_type_width ("__INT_FAST64_WIDTH__", int_fast64_type_node,
544 : uint_fast64_type_node);
545 : }
546 211513 : if (uint_fast8_type_node)
547 211513 : builtin_define_type_max ("__UINT_FAST8_MAX__", uint_fast8_type_node);
548 211513 : if (uint_fast16_type_node)
549 211513 : builtin_define_type_max ("__UINT_FAST16_MAX__", uint_fast16_type_node);
550 211513 : if (uint_fast32_type_node)
551 211513 : builtin_define_type_max ("__UINT_FAST32_MAX__", uint_fast32_type_node);
552 211513 : if (uint_fast64_type_node)
553 211513 : builtin_define_type_max ("__UINT_FAST64_MAX__", uint_fast64_type_node);
554 211513 : if (intptr_type_node)
555 : {
556 423026 : builtin_define_type_max ("__INTPTR_MAX__", intptr_type_node);
557 211513 : builtin_define_type_width ("__INTPTR_WIDTH__", intptr_type_node,
558 : uintptr_type_node);
559 : }
560 211513 : if (uintptr_type_node)
561 211513 : builtin_define_type_max ("__UINTPTR_MAX__", uintptr_type_node);
562 211513 : }
563 :
564 : /* Adjust the optimization macros when a #pragma GCC optimization is done to
565 : reflect the current level. */
566 : void
567 634 : c_cpp_builtins_optimize_pragma (cpp_reader *pfile, tree prev_tree,
568 : tree cur_tree)
569 : {
570 634 : struct cl_optimization *prev = TREE_OPTIMIZATION (prev_tree);
571 634 : struct cl_optimization *cur = TREE_OPTIMIZATION (cur_tree);
572 634 : bool prev_fast_math;
573 634 : bool cur_fast_math;
574 :
575 : /* -undef turns off target-specific built-ins. */
576 634 : if (flag_undef)
577 : return;
578 :
579 : /* Make sure all of the builtins about to be declared have
580 : BUILTINS_LOCATION has their location_t. */
581 634 : cpp_force_token_locations (parse_in, BUILTINS_LOCATION);
582 :
583 : /* Other target-independent built-ins determined by command-line
584 : options. */
585 634 : if (!prev->x_optimize_size && cur->x_optimize_size)
586 1 : cpp_define_unused (pfile, "__OPTIMIZE_SIZE__");
587 633 : else if (prev->x_optimize_size && !cur->x_optimize_size)
588 2 : cpp_undef (pfile, "__OPTIMIZE_SIZE__");
589 :
590 634 : if (!prev->x_optimize && cur->x_optimize)
591 122 : cpp_define_unused (pfile, "__OPTIMIZE__");
592 512 : else if (prev->x_optimize && !cur->x_optimize)
593 80 : cpp_undef (pfile, "__OPTIMIZE__");
594 :
595 634 : prev_fast_math = fast_math_flags_struct_set_p (prev);
596 634 : cur_fast_math = fast_math_flags_struct_set_p (cur);
597 634 : if (!prev_fast_math && cur_fast_math)
598 6 : cpp_define_unused (pfile, "__FAST_MATH__");
599 628 : else if (prev_fast_math && !cur_fast_math)
600 13 : cpp_undef (pfile, "__FAST_MATH__");
601 :
602 634 : if (!prev->x_flag_signaling_nans && cur->x_flag_signaling_nans)
603 0 : cpp_define_unused (pfile, "__SUPPORT_SNAN__");
604 634 : else if (prev->x_flag_signaling_nans && !cur->x_flag_signaling_nans)
605 0 : cpp_undef (pfile, "__SUPPORT_SNAN__");
606 :
607 634 : if (!prev->x_flag_errno_math && cur->x_flag_errno_math)
608 14 : cpp_undef (pfile, "__NO_MATH_ERRNO__");
609 620 : else if (prev->x_flag_errno_math && !cur->x_flag_errno_math)
610 7 : cpp_define_unused (pfile, "__NO_MATH_ERRNO__");
611 :
612 634 : if (!prev->x_flag_finite_math_only && cur->x_flag_finite_math_only)
613 : {
614 8 : cpp_undef (pfile, "__FINITE_MATH_ONLY__");
615 8 : cpp_define_unused (pfile, "__FINITE_MATH_ONLY__=1");
616 : }
617 626 : else if (prev->x_flag_finite_math_only && !cur->x_flag_finite_math_only)
618 : {
619 14 : cpp_undef (pfile, "__FINITE_MATH_ONLY__");
620 14 : cpp_define_unused (pfile, "__FINITE_MATH_ONLY__=0");
621 : }
622 :
623 634 : if (!prev->x_flag_reciprocal_math && cur->x_flag_reciprocal_math)
624 8 : cpp_define_unused (pfile, "__RECIPROCAL_MATH__");
625 626 : else if (prev->x_flag_reciprocal_math && !cur->x_flag_reciprocal_math)
626 15 : cpp_undef (pfile, "__RECIPROCAL_MATH__");
627 :
628 634 : if (!prev->x_flag_signed_zeros && cur->x_flag_signed_zeros)
629 15 : cpp_undef (pfile, "__NO_SIGNED_ZEROS__");
630 619 : else if (prev->x_flag_signed_zeros && !cur->x_flag_signed_zeros)
631 8 : cpp_define_unused (pfile, "__NO_SIGNED_ZEROS__");
632 :
633 634 : if (!prev->x_flag_trapping_math && cur->x_flag_trapping_math)
634 15 : cpp_undef (pfile, "__NO_TRAPPING_MATH__");
635 619 : else if (prev->x_flag_trapping_math && !cur->x_flag_trapping_math)
636 8 : cpp_define_unused (pfile, "__NO_TRAPPING_MATH__");
637 :
638 634 : if (!prev->x_flag_associative_math && cur->x_flag_associative_math)
639 8 : cpp_define_unused (pfile, "__ASSOCIATIVE_MATH__");
640 626 : else if (prev->x_flag_associative_math && !cur->x_flag_associative_math)
641 15 : cpp_undef (pfile, "__ASSOCIATIVE_MATH__");
642 :
643 634 : if (!prev->x_flag_rounding_math && cur->x_flag_rounding_math)
644 2 : cpp_define_unused (pfile, "__ROUNDING_MATH__");
645 632 : else if (prev->x_flag_rounding_math && !cur->x_flag_rounding_math)
646 2 : cpp_undef (pfile, "__ROUNDING_MATH__");
647 :
648 634 : cpp_stop_forcing_token_locations (parse_in);
649 : }
650 :
651 :
652 : /* This function will emit cpp macros to indicate the presence of various lock
653 : free atomic operations. */
654 :
655 : static void
656 211513 : cpp_atomic_builtins (cpp_reader *pfile)
657 : {
658 : /* Set a flag for each size of object that compare and swap exists for up to
659 : a 16 byte object. */
660 : #define SWAP_LIMIT 17
661 211513 : bool have_swap[SWAP_LIMIT];
662 211513 : unsigned int psize;
663 :
664 : /* Clear the map of sizes compare_and swap exists for. */
665 211513 : memset (have_swap, 0, sizeof (have_swap));
666 :
667 : /* Tell source code if the compiler makes sync_compare_and_swap
668 : builtins available. */
669 : #ifndef HAVE_sync_compare_and_swapqi
670 : #define HAVE_sync_compare_and_swapqi 0
671 : #endif
672 : #ifndef HAVE_atomic_compare_and_swapqi
673 : #define HAVE_atomic_compare_and_swapqi 0
674 : #endif
675 :
676 211513 : if (HAVE_sync_compare_and_swapqi || HAVE_atomic_compare_and_swapqi)
677 : {
678 211513 : cpp_define (pfile, "__GCC_HAVE_SYNC_COMPARE_AND_SWAP_1");
679 211513 : have_swap[1] = true;
680 : }
681 :
682 : #ifndef HAVE_sync_compare_and_swaphi
683 : #define HAVE_sync_compare_and_swaphi 0
684 : #endif
685 : #ifndef HAVE_atomic_compare_and_swaphi
686 : #define HAVE_atomic_compare_and_swaphi 0
687 : #endif
688 211513 : if (HAVE_sync_compare_and_swaphi || HAVE_atomic_compare_and_swaphi)
689 : {
690 211513 : cpp_define (pfile, "__GCC_HAVE_SYNC_COMPARE_AND_SWAP_2");
691 211513 : have_swap[2] = true;
692 : }
693 :
694 : #ifndef HAVE_sync_compare_and_swapsi
695 : #define HAVE_sync_compare_and_swapsi 0
696 : #endif
697 : #ifndef HAVE_atomic_compare_and_swapsi
698 : #define HAVE_atomic_compare_and_swapsi 0
699 : #endif
700 211513 : if (HAVE_sync_compare_and_swapsi || HAVE_atomic_compare_and_swapsi)
701 : {
702 211513 : cpp_define (pfile, "__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4");
703 211513 : have_swap[4] = true;
704 : }
705 :
706 : #ifndef HAVE_sync_compare_and_swapdi
707 : #define HAVE_sync_compare_and_swapdi 0
708 : #endif
709 : #ifndef HAVE_atomic_compare_and_swapdi
710 : #define HAVE_atomic_compare_and_swapdi 0
711 : #endif
712 211513 : if (HAVE_sync_compare_and_swapdi || HAVE_atomic_compare_and_swapdi)
713 : {
714 211513 : cpp_define (pfile, "__GCC_HAVE_SYNC_COMPARE_AND_SWAP_8");
715 211513 : have_swap[8] = true;
716 : }
717 :
718 : #ifndef HAVE_sync_compare_and_swapti
719 : #define HAVE_sync_compare_and_swapti 0
720 : #endif
721 : #ifndef HAVE_atomic_compare_and_swapti
722 : #define HAVE_atomic_compare_and_swapti 0
723 : #endif
724 211513 : if (HAVE_sync_compare_and_swapti || HAVE_atomic_compare_and_swapti)
725 : {
726 946 : cpp_define (pfile, "__GCC_HAVE_SYNC_COMPARE_AND_SWAP_16");
727 946 : have_swap[16] = true;
728 : }
729 :
730 : /* Tell the source code about various types. These map to the C++11 and C11
731 : macros where 2 indicates lock-free always, and 1 indicates sometimes
732 : lock free. */
733 : #define SIZEOF_NODE(T) (tree_to_uhwi (TYPE_SIZE_UNIT (T)))
734 : #define SWAP_INDEX(T) ((SIZEOF_NODE (T) < SWAP_LIMIT) ? SIZEOF_NODE (T) : 0)
735 211513 : builtin_define_with_int_value ("__GCC_ATOMIC_BOOL_LOCK_FREE",
736 423026 : (have_swap[SWAP_INDEX (boolean_type_node)]? 2 : 1));
737 211513 : builtin_define_with_int_value ("__GCC_ATOMIC_CHAR_LOCK_FREE",
738 423026 : (have_swap[SWAP_INDEX (signed_char_type_node)]? 2 : 1));
739 211513 : if (flag_char8_t)
740 172912 : builtin_define_with_int_value ("__GCC_ATOMIC_CHAR8_T_LOCK_FREE",
741 345824 : (have_swap[SWAP_INDEX (char8_type_node)]? 2 : 1));
742 211513 : builtin_define_with_int_value ("__GCC_ATOMIC_CHAR16_T_LOCK_FREE",
743 423026 : (have_swap[SWAP_INDEX (char16_type_node)]? 2 : 1));
744 211513 : builtin_define_with_int_value ("__GCC_ATOMIC_CHAR32_T_LOCK_FREE",
745 423026 : (have_swap[SWAP_INDEX (char32_type_node)]? 2 : 1));
746 211513 : builtin_define_with_int_value ("__GCC_ATOMIC_WCHAR_T_LOCK_FREE",
747 423026 : (have_swap[SWAP_INDEX (wchar_type_node)]? 2 : 1));
748 211513 : builtin_define_with_int_value ("__GCC_ATOMIC_SHORT_LOCK_FREE",
749 423026 : (have_swap[SWAP_INDEX (short_integer_type_node)]? 2 : 1));
750 211513 : builtin_define_with_int_value ("__GCC_ATOMIC_INT_LOCK_FREE",
751 423026 : (have_swap[SWAP_INDEX (integer_type_node)]? 2 : 1));
752 211513 : builtin_define_with_int_value ("__GCC_ATOMIC_LONG_LOCK_FREE",
753 423026 : (have_swap[SWAP_INDEX (long_integer_type_node)]? 2 : 1));
754 211513 : builtin_define_with_int_value ("__GCC_ATOMIC_LLONG_LOCK_FREE",
755 423026 : (have_swap[SWAP_INDEX (long_long_integer_type_node)]? 2 : 1));
756 :
757 : /* If we're dealing with a "set" value that doesn't exactly correspond
758 : to a boolean truth value, let the library work around that. */
759 211513 : builtin_define_with_int_value ("__GCC_ATOMIC_TEST_AND_SET_TRUEVAL",
760 211513 : targetm.atomic_test_and_set_trueval);
761 :
762 : /* Macros for C++17 hardware interference size constants. Either both or
763 : neither should be set. */
764 211513 : gcc_assert (!param_destruct_interfere_size
765 : == !param_construct_interfere_size);
766 211513 : if (param_destruct_interfere_size)
767 : {
768 : /* FIXME The way of communicating these values to the library should be
769 : part of the C++ ABI, whether macro or builtin. */
770 211513 : builtin_define_with_int_value ("__GCC_DESTRUCTIVE_SIZE",
771 : param_destruct_interfere_size);
772 211513 : builtin_define_with_int_value ("__GCC_CONSTRUCTIVE_SIZE",
773 211513 : param_construct_interfere_size);
774 : }
775 :
776 : /* ptr_type_node can't be used here since ptr_mode is only set when
777 : toplev calls backend_init which is not done with -E or pch. */
778 211513 : psize = POINTER_SIZE_UNITS;
779 211513 : if (psize >= SWAP_LIMIT)
780 : psize = 0;
781 211513 : builtin_define_with_int_value ("__GCC_ATOMIC_POINTER_LOCK_FREE",
782 211513 : (have_swap[psize]? 2 : 1));
783 211513 : }
784 :
785 : /* Return TRUE if the implicit excess precision in which the back-end will
786 : compute floating-point calculations is not more than the explicit
787 : excess precision that the front-end will apply under
788 : -fexcess-precision=[standard|fast|16].
789 :
790 : More intuitively, return TRUE if the excess precision proposed by the
791 : front-end is the excess precision that will actually be used. */
792 :
793 : static bool
794 12488 : c_cpp_flt_eval_method_iec_559 (void)
795 : {
796 12 : enum excess_precision_type front_end_ept
797 12488 : = (flag_excess_precision == EXCESS_PRECISION_STANDARD
798 12488 : ? EXCESS_PRECISION_TYPE_STANDARD
799 : : (flag_excess_precision == EXCESS_PRECISION_FLOAT16
800 12 : ? EXCESS_PRECISION_TYPE_FLOAT16
801 : : EXCESS_PRECISION_TYPE_FAST));
802 :
803 12488 : enum flt_eval_method back_end
804 12488 : = targetm.c.excess_precision (EXCESS_PRECISION_TYPE_IMPLICIT);
805 :
806 12488 : enum flt_eval_method front_end
807 12488 : = targetm.c.excess_precision (front_end_ept);
808 :
809 12488 : return excess_precision_mode_join (front_end, back_end) == front_end;
810 : }
811 :
812 : /* Return the value for __GCC_IEC_559. */
813 : static int
814 423026 : cpp_iec_559_value (void)
815 : {
816 : /* The default is support for IEEE 754-2008. */
817 423026 : int ret = 2;
818 :
819 : /* float and double must be binary32 and binary64. If they are but
820 : with reversed NaN convention, at most IEEE 754-1985 is
821 : supported. */
822 423026 : const struct real_format *ffmt
823 423026 : = REAL_MODE_FORMAT (TYPE_MODE (float_type_node));
824 423026 : const struct real_format *dfmt
825 423026 : = REAL_MODE_FORMAT (TYPE_MODE (double_type_node));
826 423026 : if (!ffmt->qnan_msb_set || !dfmt->qnan_msb_set)
827 0 : ret = 1;
828 423026 : if (ffmt->b != 2
829 423026 : || ffmt->p != 24
830 423026 : || ffmt->pnan != 24
831 423026 : || ffmt->emin != -125
832 423026 : || ffmt->emax != 128
833 423026 : || ffmt->signbit_rw != 31
834 423026 : || ffmt->round_towards_zero
835 423026 : || !ffmt->has_sign_dependent_rounding
836 423026 : || !ffmt->has_nans
837 423026 : || !ffmt->has_inf
838 423026 : || !ffmt->has_denorm
839 423026 : || !ffmt->has_signed_zero
840 423026 : || dfmt->b != 2
841 423026 : || dfmt->p != 53
842 423026 : || dfmt->pnan != 53
843 423026 : || dfmt->emin != -1021
844 423026 : || dfmt->emax != 1024
845 423026 : || dfmt->signbit_rw != 63
846 423026 : || dfmt->round_towards_zero
847 423026 : || !dfmt->has_sign_dependent_rounding
848 423026 : || !dfmt->has_nans
849 423026 : || !dfmt->has_inf
850 423026 : || !dfmt->has_denorm
851 423026 : || !dfmt->has_signed_zero)
852 0 : ret = 0;
853 :
854 : /* In strict C standards conformance mode, consider a back-end providing
855 : more implicit excess precision than the explicit excess precision
856 : the front-end options would require to mean a lack of IEEE 754
857 : support. For C++, and outside strict conformance mode, do not consider
858 : this to mean a lack of IEEE 754 support. */
859 :
860 423026 : if (flag_iso
861 119580 : && !c_dialect_cxx ()
862 435514 : && !c_cpp_flt_eval_method_iec_559 ())
863 : ret = 0;
864 :
865 423026 : if (flag_iso
866 119580 : && !c_dialect_cxx ()
867 12488 : && flag_fp_contract_mode == FP_CONTRACT_FAST)
868 423026 : ret = 0;
869 :
870 : /* Various options are contrary to IEEE 754 semantics. */
871 423026 : if (flag_unsafe_math_optimizations
872 419874 : || flag_associative_math
873 419862 : || flag_reciprocal_math
874 419854 : || flag_finite_math_only
875 419742 : || !flag_signed_zeros
876 419708 : || flag_single_precision_constant)
877 3324 : ret = 0;
878 :
879 : /* If the target does not support IEEE 754 exceptions and rounding
880 : modes, consider IEEE 754 support to be absent. */
881 423026 : if (!targetm.float_exceptions_rounding_supported_p ())
882 400 : ret = 0;
883 :
884 423026 : return ret;
885 : }
886 :
887 : /* Return the value for __GCC_IEC_559_COMPLEX. */
888 : static int
889 211513 : cpp_iec_559_complex_value (void)
890 : {
891 : /* The value is no bigger than that of __GCC_IEC_559. */
892 0 : int ret = cpp_iec_559_value ();
893 :
894 : /* Some options are contrary to the required default state of the
895 : CX_LIMITED_RANGE pragma. */
896 211513 : if (flag_complex_method != 2)
897 4293 : ret = 0;
898 :
899 211513 : return ret;
900 : }
901 :
902 : /* Hook that registers front end and target-specific built-ins. */
903 : void
904 211514 : c_cpp_builtins (cpp_reader *pfile)
905 : {
906 211514 : int i;
907 :
908 : /* -undef turns off target-specific built-ins. */
909 211514 : if (flag_undef)
910 1 : return;
911 :
912 211513 : define_language_independent_builtin_macros (pfile);
913 :
914 : /* encoding definitions used by users and libraries */
915 211513 : builtin_define_with_value ("__GNUC_EXECUTION_CHARSET_NAME",
916 : cpp_get_narrow_charset_name (pfile), 1);
917 211513 : builtin_define_with_value ("__GNUC_WIDE_EXECUTION_CHARSET_NAME",
918 : cpp_get_wide_charset_name (pfile), 1);
919 :
920 211513 : if (c_dialect_cxx ())
921 : {
922 100061 : int major;
923 100061 : parse_basever (&major, NULL, NULL);
924 100061 : cpp_define_formatted (pfile, "__GNUG__=%d", major);
925 : }
926 :
927 : /* For stddef.h. They require macros defined in c-common.cc. */
928 211513 : c_stddef_cpp_builtins ();
929 :
930 : /* Variant of cpp_define which arranges for diagnostics on user #define
931 : or #undef of the macros. */
932 5653516 : auto cpp_define_warn = [] (cpp_reader *pfile, const char *def)
933 : {
934 5442003 : const char *end = strchr (def, '=');
935 5442003 : cpp_define (pfile, def);
936 5442003 : cpp_warn (pfile, def, end ? end - def : strlen (def));
937 5442003 : };
938 :
939 211513 : if (c_dialect_cxx ())
940 : {
941 : /* Treat all cpp_define calls in this block for macros starting
942 : with __cpp_ (for C++20 and later) or __STDCPP_ as cpp_define_warn. */
943 6301094 : auto cpp_define = [=] (cpp_reader *pfile, const char *def)
944 : {
945 5667702 : if ((cxx_dialect >= cxx20 && startswith (def, "__cpp_"))
946 6648843 : || startswith (def, "__STDCPP_"))
947 5305738 : cpp_define_warn (pfile, def);
948 : else
949 895295 : ::cpp_define (pfile, def);
950 6201033 : };
951 :
952 100061 : if (flag_weak && SUPPORTS_ONE_ONLY)
953 100031 : cpp_define (pfile, "__GXX_WEAK__=1");
954 : else
955 30 : cpp_define (pfile, "__GXX_WEAK__=0");
956 :
957 100061 : if (warn_deprecated)
958 99925 : cpp_define (pfile, "__DEPRECATED");
959 :
960 100061 : if (flag_rtti)
961 : {
962 99368 : cpp_define (pfile, "__GXX_RTTI");
963 99368 : cpp_define (pfile, "__cpp_rtti=199711L");
964 : }
965 :
966 100061 : if (cxx_dialect >= cxx11)
967 : {
968 85846 : cpp_define (pfile, "__GXX_EXPERIMENTAL_CXX0X__");
969 85846 : cpp_define (pfile, "__GXX_CONSTEXPR_ASM__");
970 : }
971 :
972 : /* Binary literals have been allowed in g++ before C++11
973 : and were standardized for C++14. */
974 100061 : if (!pedantic || cxx_dialect > cxx11)
975 89402 : cpp_define (pfile, "__cpp_binary_literals=201304L");
976 :
977 : /* Similarly for hexadecimal floating point literals and C++17. */
978 100061 : if (!pedantic || cpp_get_options (parse_in)->extended_numbers)
979 88785 : cpp_define (pfile, "__cpp_hex_float=201603L");
980 :
981 : /* Arrays of runtime bound were removed from C++14, but we still
982 : support GNU VLAs. Let's define this macro to a low number
983 : (corresponding to the initial test release of GNU C++) if we won't
984 : complain about use of VLAs. */
985 100061 : if (c_dialect_cxx ()
986 100061 : && (pedantic ? warn_vla == 0 : warn_vla <= 0))
987 53382 : cpp_define (pfile, "__cpp_runtime_arrays=198712L");
988 :
989 100061 : if (cxx_dialect >= cxx11)
990 : {
991 : /* Set feature test macros for C++11. */
992 85846 : if (cxx_dialect <= cxx14)
993 7009 : cpp_define (pfile, "__cpp_unicode_characters=200704L");
994 85846 : cpp_define (pfile, "__cpp_raw_strings=200710L");
995 85846 : cpp_define (pfile, "__cpp_unicode_literals=200710L");
996 85846 : cpp_define (pfile, "__cpp_user_defined_literals=200809L");
997 85846 : cpp_define (pfile, "__cpp_lambdas=200907L");
998 85846 : if (cxx_dialect == cxx11)
999 5706 : cpp_define (pfile, "__cpp_constexpr=200704L");
1000 85846 : if (cxx_dialect <= cxx14)
1001 7009 : cpp_define (pfile, "__cpp_range_based_for=200907L");
1002 85846 : if (cxx_dialect <= cxx14)
1003 7009 : cpp_define (pfile, "__cpp_static_assert=200410L");
1004 85846 : cpp_define (pfile, "__cpp_decltype=200707L");
1005 85846 : cpp_define (pfile, "__cpp_attributes=200809L");
1006 85846 : cpp_define (pfile, "__cpp_rvalue_reference=200610L");
1007 85846 : cpp_define (pfile, "__cpp_rvalue_references=200610L");
1008 85846 : cpp_define (pfile, "__cpp_variadic_templates=200704L");
1009 85846 : cpp_define (pfile, "__cpp_initializer_lists=200806L");
1010 85846 : cpp_define (pfile, "__cpp_delegating_constructors=200604L");
1011 85846 : cpp_define (pfile, "__cpp_nsdmi=200809L");
1012 85846 : if (!flag_new_inheriting_ctors)
1013 200 : cpp_define (pfile, "__cpp_inheriting_constructors=200802L");
1014 : else
1015 85646 : cpp_define (pfile, "__cpp_inheriting_constructors=201511L");
1016 85846 : cpp_define (pfile, "__cpp_ref_qualifiers=200710L");
1017 85846 : cpp_define (pfile, "__cpp_alias_templates=200704L");
1018 : }
1019 100061 : if (cxx_dialect > cxx11)
1020 : {
1021 : /* Set feature test macros for C++14. */
1022 80140 : cpp_define (pfile, "__cpp_return_type_deduction=201304L");
1023 80140 : if (cxx_dialect <= cxx17)
1024 : {
1025 5482 : cpp_define (pfile, "__cpp_init_captures=201304L");
1026 5482 : cpp_define (pfile, "__cpp_generic_lambdas=201304L");
1027 : }
1028 80140 : if (cxx_dialect <= cxx14)
1029 1303 : cpp_define (pfile, "__cpp_constexpr=201304L");
1030 80140 : cpp_define (pfile, "__cpp_decltype_auto=201304L");
1031 80140 : cpp_define (pfile, "__cpp_aggregate_nsdmi=201304L");
1032 80140 : cpp_define (pfile, "__cpp_variable_templates=201304L");
1033 80140 : cpp_define (pfile, "__cpp_digit_separators=201309L");
1034 : }
1035 100061 : if (cxx_dialect > cxx14)
1036 : {
1037 : /* Set feature test macros for C++17. */
1038 78837 : cpp_define (pfile, "__cpp_unicode_characters=201411L");
1039 78837 : if (cxx_dialect <= cxx23)
1040 53735 : cpp_define (pfile, "__cpp_static_assert=201411L");
1041 78837 : cpp_define (pfile, "__cpp_namespace_attributes=201411L");
1042 78837 : cpp_define (pfile, "__cpp_enumerator_attributes=201411L");
1043 78837 : cpp_define (pfile, "__cpp_nested_namespace_definitions=201411L");
1044 78837 : cpp_define (pfile, "__cpp_fold_expressions=201603L");
1045 78837 : if (cxx_dialect <= cxx17)
1046 4179 : cpp_define (pfile, "__cpp_nontype_template_args=201411L");
1047 78837 : if (!flag_range_for_ext_temps)
1048 51578 : cpp_define (pfile, "__cpp_range_based_for=201603L");
1049 : else
1050 : /* This is the C++23 or -std=c++17 -frange-for-ext-temps value. */
1051 27259 : cpp_define (pfile, "__cpp_range_based_for=202211L");
1052 78837 : if (cxx_dialect <= cxx17)
1053 4179 : cpp_define (pfile, "__cpp_constexpr=201603L");
1054 78837 : cpp_define (pfile, "__cpp_if_constexpr=201606L");
1055 78837 : cpp_define (pfile, "__cpp_capture_star_this=201603L");
1056 78837 : cpp_define (pfile, "__cpp_inline_variables=201606L");
1057 78837 : cpp_define (pfile, "__cpp_aggregate_bases=201603L");
1058 78837 : if (cxx_dialect <= cxx17)
1059 4179 : cpp_define (pfile, "__cpp_deduction_guides=201703L");
1060 78837 : cpp_define (pfile, "__cpp_noexcept_function_type=201510L");
1061 : /* Old macro, superseded by
1062 : __cpp_nontype_template_parameter_auto. */
1063 78837 : cpp_define (pfile, "__cpp_template_auto=201606L");
1064 78837 : if (cxx_dialect <= cxx23)
1065 53735 : cpp_define (pfile, "__cpp_structured_bindings=201606L");
1066 78837 : cpp_define (pfile, "__cpp_variadic_using=201611L");
1067 78837 : cpp_define (pfile, "__cpp_guaranteed_copy_elision=201606L");
1068 78837 : cpp_define (pfile, "__cpp_nontype_template_parameter_auto=201606L");
1069 : }
1070 100061 : if (cxx_dialect > cxx17)
1071 : {
1072 : /* Set feature test macros for C++20. */
1073 74658 : cpp_define (pfile, "__cpp_init_captures=201803L");
1074 74658 : cpp_define (pfile, "__cpp_generic_lambdas=201707L");
1075 74658 : cpp_define (pfile, "__cpp_designated_initializers=201707L");
1076 74658 : if (cxx_dialect <= cxx20)
1077 47405 : cpp_define (pfile, "__cpp_constexpr=202002L");
1078 74658 : cpp_define (pfile, "__cpp_constexpr_in_decltype=201711L");
1079 74658 : cpp_define (pfile, "__cpp_conditional_explicit=201806L");
1080 74658 : cpp_define (pfile, "__cpp_consteval=202211L");
1081 74658 : cpp_define (pfile, "__cpp_constinit=201907L");
1082 74658 : if (cxx_dialect <= cxx20)
1083 47405 : cpp_define (pfile, "__cpp_deduction_guides=201907L");
1084 74658 : cpp_define (pfile, "__cpp_nontype_template_args=201911L");
1085 74658 : cpp_define (pfile, "__cpp_nontype_template_parameter_class=201806L");
1086 74658 : cpp_define (pfile, "__cpp_impl_destroying_delete=201806L");
1087 74658 : cpp_define (pfile, "__cpp_constexpr_dynamic_alloc=201907L");
1088 74658 : cpp_define (pfile, "__cpp_impl_three_way_comparison=201907L");
1089 74658 : cpp_define (pfile, "__cpp_aggregate_paren_init=201902L");
1090 74658 : cpp_define (pfile, "__cpp_using_enum=201907L");
1091 : }
1092 100061 : if (cxx_dialect > cxx20)
1093 : {
1094 : /* Set feature test macros for C++23. */
1095 27253 : cpp_define (pfile, "__cpp_size_t_suffix=202011L");
1096 27253 : cpp_define (pfile, "__cpp_if_consteval=202106L");
1097 27253 : cpp_define (pfile, "__cpp_auto_cast=202110L");
1098 27253 : if (cxx_dialect <= cxx23)
1099 2151 : cpp_define (pfile, "__cpp_constexpr=202211L");
1100 27253 : cpp_define (pfile, "__cpp_deduction_guides=202207L");
1101 27253 : cpp_define (pfile, "__cpp_multidimensional_subscript=202211L");
1102 27253 : cpp_define (pfile, "__cpp_named_character_escapes=202207L");
1103 27253 : cpp_define (pfile, "__cpp_static_call_operator=202207L");
1104 27253 : cpp_define (pfile, "__cpp_implicit_move=202207L");
1105 27253 : cpp_define (pfile, "__cpp_explicit_this_parameter=202110L");
1106 : }
1107 100061 : if (cxx_dialect > cxx23)
1108 : {
1109 : /* Set feature test macros for C++26. */
1110 25102 : cpp_define (pfile, "__cpp_constexpr=202406L");
1111 25102 : cpp_define (pfile, "__cpp_constexpr_exceptions=202411L");
1112 25102 : cpp_define (pfile, "__cpp_static_assert=202306L");
1113 25102 : cpp_define (pfile, "__cpp_placeholder_variables=202306L");
1114 25102 : cpp_define (pfile, "__cpp_structured_bindings=202411L");
1115 25102 : cpp_define (pfile, "__cpp_deleted_function=202403L");
1116 25102 : cpp_define (pfile, "__cpp_variadic_friend=202403L");
1117 25102 : cpp_define (pfile, "__cpp_pack_indexing=202311L");
1118 25102 : if (cxx_dialect <= cxx26)
1119 1354 : cpp_define (pfile, "__cpp_pp_embed=202502L");
1120 25102 : cpp_define (pfile, "__cpp_constexpr_virtual_inheritance=202506L");
1121 25102 : cpp_define (pfile, "__cpp_expansion_statements=202506L");
1122 25102 : if (flag_reflection)
1123 1259 : cpp_define (pfile, "__cpp_impl_reflection=202603L");
1124 : else
1125 23843 : cpp_warn (pfile, "__cpp_impl_reflection");
1126 25102 : cpp_define (pfile, "__cpp_trivial_union=202502L");
1127 : }
1128 100061 : if (cxx_dialect > cxx26)
1129 : {
1130 : /* Set feature test macros for C++29. */
1131 23748 : cpp_define (pfile, "__cpp_pp_embed=202606L");
1132 : }
1133 100061 : if (flag_concepts && cxx_dialect > cxx14)
1134 74777 : cpp_define (pfile, "__cpp_concepts=202002L");
1135 25284 : else if (cxx_dialect >= cxx20)
1136 0 : cpp_warn (pfile, "__cpp_concepts");
1137 100061 : if (flag_contracts)
1138 25148 : cpp_define (pfile, "__cpp_contracts=202502L");
1139 74913 : else if (cxx_dialect >= cxx26)
1140 0 : cpp_warn (pfile, "__cpp_contracts");
1141 100061 : if (flag_modules)
1142 : /* The std-defined value is 201907L, but I don't think we can
1143 : claim victory yet. 201810 is the p1103 date. */
1144 4908 : cpp_define (pfile, "__cpp_modules=201810L");
1145 95153 : else if (cxx_dialect >= cxx20)
1146 71278 : cpp_warn (pfile, "__cpp_modules");
1147 100061 : if (flag_coroutines)
1148 75629 : cpp_define (pfile, "__cpp_impl_coroutine=201902L"); /* n4861, DIS */
1149 24432 : else if (cxx_dialect >= cxx20)
1150 0 : cpp_warn (pfile, "__cpp_impl_coroutine");
1151 100061 : if (flag_tm)
1152 : /* Use a value smaller than the 201505 specified in
1153 : the TS, since we don't yet support atomic_cancel. */
1154 316 : cpp_define (pfile, "__cpp_transactional_memory=201500L");
1155 100061 : if (flag_sized_deallocation)
1156 80138 : cpp_define (pfile, "__cpp_sized_deallocation=201309L");
1157 19923 : else if (cxx_dialect >= cxx20)
1158 2 : cpp_warn (pfile, "__cpp_sized_deallocation");
1159 100061 : if (aligned_new_threshold)
1160 : {
1161 78840 : cpp_define (pfile, "__cpp_aligned_new=201606L");
1162 78840 : cpp_define_formatted (pfile, "__STDCPP_DEFAULT_NEW_ALIGNMENT__=%d",
1163 : aligned_new_threshold);
1164 : }
1165 21221 : else if (cxx_dialect >= cxx20)
1166 0 : cpp_warn (pfile, "__cpp_aligned_new");
1167 100061 : if (cxx_dialect >= cxx17)
1168 78837 : cpp_warn (pfile, "__STDCPP_DEFAULT_NEW_ALIGNMENT__");
1169 100061 : if (flag_new_ttp)
1170 78825 : cpp_define (pfile, "__cpp_template_template_args=201611L");
1171 21236 : else if (cxx_dialect >= cxx20)
1172 19 : cpp_warn (pfile, "__cpp_template_template_args");
1173 100061 : if (flag_threadsafe_statics)
1174 100055 : cpp_define (pfile, "__cpp_threadsafe_static_init=200806L");
1175 6 : else if (cxx_dialect >= cxx20)
1176 4 : cpp_warn (pfile, "__cpp_threadsafe_static_init");
1177 100061 : if (flag_char8_t)
1178 74676 : cpp_define (pfile, "__cpp_char8_t=202207L");
1179 25385 : else if (cxx_dialect >= cxx20)
1180 15 : cpp_warn (pfile, "__cpp_char8_t");
1181 : #ifndef THREAD_MODEL_SPEC
1182 : /* Targets that define THREAD_MODEL_SPEC need to define
1183 : __STDCPP_THREADS__ in their config/XXX/XXX-c.c themselves. */
1184 100061 : if (cxx_dialect >= cxx11 && strcmp (thread_model, "single") != 0)
1185 85846 : cpp_define (pfile, "__STDCPP_THREADS__=1");
1186 : else
1187 : #endif
1188 : if (cxx_dialect >= cxx11)
1189 : cpp_warn (pfile, "__STDCPP_THREADS__");
1190 100061 : if (flag_implicit_constexpr)
1191 7 : cpp_define (pfile, "__cpp_implicit_constexpr=20211111L");
1192 : }
1193 : /* Note that we define this for C as well, so that we know if
1194 : __attribute__((cleanup)) will interface with EH. */
1195 211513 : if (flag_exceptions)
1196 : {
1197 99322 : cpp_define (pfile, "__EXCEPTIONS");
1198 99322 : if (c_dialect_cxx ())
1199 98804 : cpp_define (pfile, "__cpp_exceptions=199711L");
1200 : }
1201 :
1202 : /* Represents the C++ ABI version, always defined so it can be used while
1203 : preprocessing C and assembler. */
1204 211513 : if (flag_abi_version == 0)
1205 : /* We should have set this to something real in c_common_post_options. */
1206 0 : gcc_unreachable ();
1207 211513 : else if (flag_abi_version == 1)
1208 : /* Due to a historical accident, this version had the value
1209 : "102". */
1210 0 : builtin_define_with_int_value ("__GXX_ABI_VERSION", 102);
1211 : else
1212 : /* Newer versions have values 1002, 1003, .... */
1213 211513 : builtin_define_with_int_value ("__GXX_ABI_VERSION",
1214 211513 : 1000 + flag_abi_version);
1215 :
1216 : /* libgcc needs to know this. */
1217 211513 : if (targetm_common.except_unwind_info (&global_options) == UI_SJLJ)
1218 0 : cpp_define (pfile, "__USING_SJLJ_EXCEPTIONS__");
1219 :
1220 : /* limits.h and stdint.h need to know these. */
1221 423026 : builtin_define_type_max ("__SCHAR_MAX__", signed_char_type_node);
1222 423026 : builtin_define_type_max ("__SHRT_MAX__", short_integer_type_node);
1223 423026 : builtin_define_type_max ("__INT_MAX__", integer_type_node);
1224 423026 : builtin_define_type_max ("__LONG_MAX__", long_integer_type_node);
1225 423026 : builtin_define_type_max ("__LONG_LONG_MAX__", long_long_integer_type_node);
1226 211513 : builtin_define_type_minmax ("__WCHAR_MIN__", "__WCHAR_MAX__",
1227 : underlying_wchar_type_node);
1228 211513 : builtin_define_type_minmax ("__WINT_MIN__", "__WINT_MAX__", wint_type_node);
1229 423026 : builtin_define_type_max ("__PTRDIFF_MAX__", ptrdiff_type_node);
1230 423026 : builtin_define_type_max ("__SIZE_MAX__", size_type_node);
1231 :
1232 : /* These are needed for TS 18661-1. */
1233 211513 : builtin_define_type_width ("__SCHAR_WIDTH__", signed_char_type_node,
1234 : unsigned_char_type_node);
1235 211513 : builtin_define_type_width ("__SHRT_WIDTH__", short_integer_type_node,
1236 : short_unsigned_type_node);
1237 211513 : builtin_define_type_width ("__INT_WIDTH__", integer_type_node,
1238 : unsigned_type_node);
1239 211513 : builtin_define_type_width ("__LONG_WIDTH__", long_integer_type_node,
1240 : long_unsigned_type_node);
1241 211513 : builtin_define_type_width ("__LONG_LONG_WIDTH__",
1242 : long_long_integer_type_node,
1243 : long_long_unsigned_type_node);
1244 211513 : builtin_define_type_width ("__WCHAR_WIDTH__", underlying_wchar_type_node,
1245 : NULL_TREE);
1246 211513 : builtin_define_type_width ("__WINT_WIDTH__", wint_type_node, NULL_TREE);
1247 211513 : builtin_define_type_width ("__PTRDIFF_WIDTH__", ptrdiff_type_node, NULL_TREE);
1248 211513 : builtin_define_type_width ("__SIZE_WIDTH__", size_type_node, NULL_TREE);
1249 :
1250 211513 : if (!c_dialect_cxx ())
1251 : {
1252 111452 : struct bitint_info info;
1253 : /* For now, restrict __BITINT_MAXWIDTH__ to what can be represented in
1254 : wide_int and widest_int. */
1255 111452 : if (targetm.c.bitint_type_info (WIDE_INT_MAX_PRECISION - 1, &info))
1256 : {
1257 111452 : cpp_define_formatted (pfile, "__BITINT_MAXWIDTH__=%d",
1258 : (int) WIDE_INT_MAX_PRECISION - 1);
1259 111452 : if (flag_building_libgcc)
1260 : {
1261 984 : scalar_int_mode limb_mode
1262 984 : = as_a <scalar_int_mode> (info.limb_mode);
1263 984 : cpp_define_formatted (pfile, "__LIBGCC_BITINT_LIMB_WIDTH__=%d",
1264 984 : (int) GET_MODE_PRECISION (limb_mode));
1265 984 : cpp_define_formatted (pfile, "__LIBGCC_BITINT_ORDER__=%s",
1266 984 : info.big_endian
1267 : ? "__ORDER_BIG_ENDIAN__"
1268 : : "__ORDER_LITTLE_ENDIAN__");
1269 : }
1270 : }
1271 : }
1272 :
1273 211513 : if (c_dialect_cxx ())
1274 200122 : for (i = 0; i < NUM_INT_N_ENTS; i ++)
1275 100061 : if (int_n_enabled_p[i])
1276 : {
1277 99258 : char buf[35+20+20];
1278 :
1279 : /* These are used to configure the C++ library. */
1280 :
1281 99258 : if (!flag_iso || int_n_data[i].bitsize == POINTER_SIZE)
1282 : {
1283 45762 : sprintf (buf, "__GLIBCXX_TYPE_INT_N_%d=__int%d", i, int_n_data[i].bitsize);
1284 45762 : cpp_define (parse_in, buf);
1285 :
1286 45762 : sprintf (buf, "__GLIBCXX_BITSIZE_INT_N_%d=%d", i, int_n_data[i].bitsize);
1287 45762 : cpp_define (parse_in, buf);
1288 : }
1289 : }
1290 :
1291 : /* stdint.h and the testsuite need to know these. */
1292 211513 : builtin_define_stdint_macros ();
1293 :
1294 : /* Provide information for library headers to determine whether to
1295 : define macros such as __STDC_IEC_559__ and
1296 : __STDC_IEC_559_COMPLEX__. */
1297 211513 : builtin_define_with_int_value ("__GCC_IEC_559", cpp_iec_559_value ());
1298 211513 : builtin_define_with_int_value ("__GCC_IEC_559_COMPLEX",
1299 211513 : cpp_iec_559_complex_value ());
1300 :
1301 : /* float.h needs these to correctly set FLT_EVAL_METHOD
1302 :
1303 : We define two values:
1304 :
1305 : __FLT_EVAL_METHOD__
1306 : Which, depending on the value given for
1307 : -fpermitted-flt-eval-methods, may be limited to only those values
1308 : for FLT_EVAL_METHOD defined in C99/C11.
1309 :
1310 : __FLT_EVAL_METHOD_TS_18661_3__
1311 : Which always permits the values for FLT_EVAL_METHOD defined in
1312 : ISO/IEC TS 18661-3. */
1313 211513 : builtin_define_with_int_value ("__FLT_EVAL_METHOD__",
1314 211513 : c_flt_eval_method (true));
1315 211513 : builtin_define_with_int_value ("__FLT_EVAL_METHOD_TS_18661_3__",
1316 211513 : c_flt_eval_method (false));
1317 :
1318 : /* And decfloat.h needs this. */
1319 211513 : builtin_define_with_int_value ("__DEC_EVAL_METHOD__",
1320 : TARGET_DEC_EVAL_METHOD);
1321 :
1322 211513 : builtin_define_float_constants ("FLT", "F", "%s", "F", float_type_node);
1323 : /* Cast the double precision constants. This is needed when single
1324 : precision constants are specified or when pragma FLOAT_CONST_DECIMAL64
1325 : is used. The correct result is computed by the compiler when using
1326 : macros that include a cast. We use a different cast for C++ to avoid
1327 : problems with -Wold-style-cast. */
1328 211513 : builtin_define_float_constants ("DBL", "L",
1329 211513 : (c_dialect_cxx ()
1330 : ? "double(%s)"
1331 : : "((double)%s)"),
1332 : "", double_type_node);
1333 211513 : builtin_define_float_constants ("LDBL", "L", "%s", "L",
1334 : long_double_type_node);
1335 :
1336 1692104 : for (int i = 0; i < NUM_FLOATN_NX_TYPES; i++)
1337 : {
1338 1480591 : if (c_dialect_cxx ()
1339 700427 : && cxx_dialect > cxx20
1340 190771 : && !floatn_nx_types[i].extended)
1341 : {
1342 109012 : char name[sizeof ("__STDCPP_FLOAT128_T__=1")];
1343 109012 : if (FLOATN_NX_TYPE_NODE (i) == NULL_TREE)
1344 : {
1345 0 : sprintf (name, "__STDCPP_FLOAT%d_T__", floatn_nx_types[i].n);
1346 0 : cpp_warn (pfile, name);
1347 0 : continue;
1348 : }
1349 109012 : sprintf (name, "__STDCPP_FLOAT%d_T__=1", floatn_nx_types[i].n);
1350 109012 : cpp_define_warn (pfile, name);
1351 109012 : }
1352 1371579 : else if (FLOATN_NX_TYPE_NODE (i) == NULL_TREE)
1353 211513 : continue;
1354 1269078 : char prefix[20], csuffix[20];
1355 2538156 : sprintf (prefix, "FLT%d%s", floatn_nx_types[i].n,
1356 1269078 : floatn_nx_types[i].extended ? "X" : "");
1357 1269078 : sprintf (csuffix, "F%d%s", floatn_nx_types[i].n,
1358 : floatn_nx_types[i].extended ? "x" : "");
1359 1269078 : builtin_define_float_constants (prefix, ggc_strdup (csuffix), "%s",
1360 1269078 : csuffix, FLOATN_NX_TYPE_NODE (i));
1361 : }
1362 211513 : if (bfloat16_type_node)
1363 : {
1364 211513 : if (c_dialect_cxx () && cxx_dialect > cxx20)
1365 27253 : cpp_define_warn (pfile, "__STDCPP_BFLOAT16_T__=1");
1366 211513 : builtin_define_float_constants ("BFLT16", "BF16", "%s",
1367 : "BF16", bfloat16_type_node);
1368 : }
1369 0 : else if (cxx_dialect >= cxx23)
1370 0 : cpp_warn (pfile, "__STDCPP_BFLOAT16_T__");
1371 :
1372 : /* For float.h. */
1373 211513 : if (targetm.decimal_float_supported_p ())
1374 : {
1375 211513 : builtin_define_decimal_float_constants ("DEC32", "DF",
1376 : dfloat32_type_node);
1377 211513 : builtin_define_decimal_float_constants ("DEC64", "DD",
1378 : dfloat64_type_node);
1379 211513 : builtin_define_decimal_float_constants ("DEC128", "DL",
1380 : dfloat128_type_node);
1381 211513 : if (dfloat64x_type_node)
1382 211513 : builtin_define_decimal_float_constants ("DEC64X", "D64x",
1383 : dfloat64x_type_node);
1384 : }
1385 :
1386 : /* For fixed-point fibt, ibit, max, min, and epsilon. */
1387 211513 : if (!c_dialect_cxx () && targetm.fixed_point_supported_p ())
1388 : {
1389 0 : builtin_define_fixed_point_constants ("SFRACT", "HR",
1390 : short_fract_type_node);
1391 0 : builtin_define_fixed_point_constants ("USFRACT", "UHR",
1392 : unsigned_short_fract_type_node);
1393 0 : builtin_define_fixed_point_constants ("FRACT", "R",
1394 : fract_type_node);
1395 0 : builtin_define_fixed_point_constants ("UFRACT", "UR",
1396 : unsigned_fract_type_node);
1397 0 : builtin_define_fixed_point_constants ("LFRACT", "LR",
1398 : long_fract_type_node);
1399 0 : builtin_define_fixed_point_constants ("ULFRACT", "ULR",
1400 : unsigned_long_fract_type_node);
1401 0 : builtin_define_fixed_point_constants ("LLFRACT", "LLR",
1402 : long_long_fract_type_node);
1403 0 : builtin_define_fixed_point_constants ("ULLFRACT", "ULLR",
1404 : unsigned_long_long_fract_type_node);
1405 0 : builtin_define_fixed_point_constants ("SACCUM", "HK",
1406 : short_accum_type_node);
1407 0 : builtin_define_fixed_point_constants ("USACCUM", "UHK",
1408 : unsigned_short_accum_type_node);
1409 0 : builtin_define_fixed_point_constants ("ACCUM", "K",
1410 : accum_type_node);
1411 0 : builtin_define_fixed_point_constants ("UACCUM", "UK",
1412 : unsigned_accum_type_node);
1413 0 : builtin_define_fixed_point_constants ("LACCUM", "LK",
1414 : long_accum_type_node);
1415 0 : builtin_define_fixed_point_constants ("ULACCUM", "ULK",
1416 : unsigned_long_accum_type_node);
1417 0 : builtin_define_fixed_point_constants ("LLACCUM", "LLK",
1418 : long_long_accum_type_node);
1419 0 : builtin_define_fixed_point_constants ("ULLACCUM", "ULLK",
1420 : unsigned_long_long_accum_type_node);
1421 :
1422 0 : builtin_define_fixed_point_constants ("QQ", "", qq_type_node);
1423 0 : builtin_define_fixed_point_constants ("HQ", "", hq_type_node);
1424 0 : builtin_define_fixed_point_constants ("SQ", "", sq_type_node);
1425 0 : builtin_define_fixed_point_constants ("DQ", "", dq_type_node);
1426 0 : builtin_define_fixed_point_constants ("TQ", "", tq_type_node);
1427 0 : builtin_define_fixed_point_constants ("UQQ", "", uqq_type_node);
1428 0 : builtin_define_fixed_point_constants ("UHQ", "", uhq_type_node);
1429 0 : builtin_define_fixed_point_constants ("USQ", "", usq_type_node);
1430 0 : builtin_define_fixed_point_constants ("UDQ", "", udq_type_node);
1431 0 : builtin_define_fixed_point_constants ("UTQ", "", utq_type_node);
1432 0 : builtin_define_fixed_point_constants ("HA", "", ha_type_node);
1433 0 : builtin_define_fixed_point_constants ("SA", "", sa_type_node);
1434 0 : builtin_define_fixed_point_constants ("DA", "", da_type_node);
1435 0 : builtin_define_fixed_point_constants ("TA", "", ta_type_node);
1436 0 : builtin_define_fixed_point_constants ("UHA", "", uha_type_node);
1437 0 : builtin_define_fixed_point_constants ("USA", "", usa_type_node);
1438 0 : builtin_define_fixed_point_constants ("UDA", "", uda_type_node);
1439 0 : builtin_define_fixed_point_constants ("UTA", "", uta_type_node);
1440 : }
1441 :
1442 : /* For libgcc-internal use only. */
1443 211513 : if (flag_building_libgcc)
1444 : {
1445 : /* Properties of floating-point modes for libgcc2.c. */
1446 984 : opt_scalar_float_mode mode_iter;
1447 6888 : FOR_EACH_MODE_IN_CLASS (mode_iter, MODE_FLOAT)
1448 : {
1449 5904 : scalar_float_mode mode = mode_iter.require ();
1450 5904 : const char *name = GET_MODE_NAME (mode);
1451 5904 : const size_t name_len = strlen (name);
1452 5904 : char float_h_prefix[16] = "";
1453 5904 : char *macro_name
1454 5904 : = XALLOCAVEC (char, name_len + sizeof ("__LIBGCC__MANT_DIG__"));
1455 5904 : sprintf (macro_name, "__LIBGCC_%s_MANT_DIG__", name);
1456 11808 : builtin_define_with_int_value (macro_name,
1457 5904 : REAL_MODE_FORMAT (mode)->p);
1458 5904 : if (!targetm.scalar_mode_supported_p (mode)
1459 5904 : || !targetm.libgcc_floating_mode_supported_p (mode))
1460 0 : continue;
1461 5904 : macro_name = XALLOCAVEC (char, name_len
1462 : + sizeof ("__LIBGCC_HAS__MODE__"));
1463 5904 : sprintf (macro_name, "__LIBGCC_HAS_%s_MODE__", name);
1464 5904 : cpp_define (pfile, macro_name);
1465 5904 : macro_name = XALLOCAVEC (char, name_len
1466 : + sizeof ("__LIBGCC__FUNC_EXT__"));
1467 5904 : sprintf (macro_name, "__LIBGCC_%s_FUNC_EXT__", name);
1468 5904 : char suffix[20] = "";
1469 5904 : if (mode == TYPE_MODE (double_type_node))
1470 : {
1471 : /* Empty suffix correct. */
1472 984 : memcpy (float_h_prefix, "DBL", 4);
1473 : }
1474 4920 : else if (mode == TYPE_MODE (float_type_node))
1475 : {
1476 984 : suffix[0] = 'f';
1477 984 : memcpy (float_h_prefix, "FLT", 4);
1478 : }
1479 3936 : else if (mode == TYPE_MODE (long_double_type_node))
1480 : {
1481 984 : suffix[0] = 'l';
1482 984 : memcpy (float_h_prefix, "LDBL", 5);
1483 : }
1484 2952 : else if (bfloat16_type_node
1485 2952 : && mode == TYPE_MODE (bfloat16_type_node))
1486 : {
1487 984 : memcpy (suffix, "bf16", 5);
1488 984 : memcpy (float_h_prefix, "BFLT16", 7);
1489 : }
1490 : else
1491 : {
1492 4920 : bool found_suffix = false;
1493 4920 : for (int i = 0; i < NUM_FLOATN_NX_TYPES; i++)
1494 4920 : if (FLOATN_NX_TYPE_NODE (i) != NULL_TREE
1495 4920 : && mode == TYPE_MODE (FLOATN_NX_TYPE_NODE (i)))
1496 : {
1497 3936 : sprintf (suffix, "f%d%s", floatn_nx_types[i].n,
1498 1968 : floatn_nx_types[i].extended ? "x" : "");
1499 1968 : found_suffix = true;
1500 1968 : sprintf (float_h_prefix, "FLT%d%s", floatn_nx_types[i].n,
1501 : floatn_nx_types[i].extended ? "X" : "");
1502 1968 : break;
1503 : }
1504 1968 : gcc_assert (found_suffix);
1505 : }
1506 5904 : builtin_define_with_value (macro_name, suffix, 0);
1507 :
1508 : /* The way __LIBGCC_*_EXCESS_PRECISION__ is used is about
1509 : eliminating excess precision from results assigned to
1510 : variables - meaning it should be about the implicit excess
1511 : precision only. */
1512 5904 : bool excess_precision = false;
1513 5904 : machine_mode float16_type_mode = (float16_type_node
1514 5904 : ? TYPE_MODE (float16_type_node)
1515 5904 : : VOIDmode);
1516 5904 : machine_mode bfloat16_type_mode = (bfloat16_type_node
1517 5904 : ? TYPE_MODE (bfloat16_type_node)
1518 5904 : : VOIDmode);
1519 5904 : switch (targetm.c.excess_precision
1520 5904 : (EXCESS_PRECISION_TYPE_IMPLICIT))
1521 : {
1522 2898 : case FLT_EVAL_METHOD_UNPREDICTABLE:
1523 2898 : case FLT_EVAL_METHOD_PROMOTE_TO_LONG_DOUBLE:
1524 2898 : excess_precision = (mode == float16_type_mode
1525 2415 : || mode == bfloat16_type_mode
1526 1932 : || mode == TYPE_MODE (float_type_node)
1527 4347 : || mode == TYPE_MODE (double_type_node));
1528 : break;
1529 :
1530 0 : case FLT_EVAL_METHOD_PROMOTE_TO_DOUBLE:
1531 0 : excess_precision = (mode == float16_type_mode
1532 0 : || mode == bfloat16_type_mode
1533 0 : || mode == TYPE_MODE (float_type_node));
1534 : break;
1535 3006 : case FLT_EVAL_METHOD_PROMOTE_TO_FLOAT:
1536 3006 : excess_precision = (mode == float16_type_mode
1537 3006 : || mode == bfloat16_type_mode);
1538 : break;
1539 : case FLT_EVAL_METHOD_PROMOTE_TO_FLOAT16:
1540 : excess_precision = false;
1541 : break;
1542 0 : default:
1543 0 : gcc_unreachable ();
1544 : }
1545 5904 : macro_name = XALLOCAVEC (char, name_len
1546 : + sizeof ("__LIBGCC__EXCESS_PRECISION__"));
1547 5904 : sprintf (macro_name, "__LIBGCC_%s_EXCESS_PRECISION__", name);
1548 5904 : builtin_define_with_int_value (macro_name, excess_precision);
1549 :
1550 5904 : char val_name[64];
1551 :
1552 5904 : macro_name = XALLOCAVEC (char, name_len
1553 : + sizeof ("__LIBGCC__EPSILON__"));
1554 5904 : sprintf (macro_name, "__LIBGCC_%s_EPSILON__", name);
1555 5904 : sprintf (val_name, "__%s_EPSILON__", float_h_prefix);
1556 5904 : builtin_define_with_value (macro_name, val_name, 0);
1557 :
1558 5904 : macro_name = XALLOCAVEC (char, name_len + sizeof ("__LIBGCC__MAX__"));
1559 5904 : sprintf (macro_name, "__LIBGCC_%s_MAX__", name);
1560 5904 : sprintf (val_name, "__%s_MAX__", float_h_prefix);
1561 5904 : builtin_define_with_value (macro_name, val_name, 0);
1562 :
1563 5904 : macro_name = XALLOCAVEC (char, name_len + sizeof ("__LIBGCC__MIN__"));
1564 5904 : sprintf (macro_name, "__LIBGCC_%s_MIN__", name);
1565 5904 : sprintf (val_name, "__%s_MIN__", float_h_prefix);
1566 5904 : builtin_define_with_value (macro_name, val_name, 0);
1567 :
1568 : #ifdef HAVE_adddf3
1569 5904 : builtin_define_with_int_value ("__LIBGCC_HAVE_HWDBL__",
1570 5904 : HAVE_adddf3);
1571 : #endif
1572 : }
1573 :
1574 : /* For libgcc crtstuff.c and libgcc2.c. */
1575 984 : builtin_define_with_int_value ("__LIBGCC_EH_TABLES_CAN_BE_READ_ONLY__",
1576 : EH_TABLES_CAN_BE_READ_ONLY);
1577 : #ifdef EH_FRAME_SECTION_NAME
1578 984 : builtin_define_with_value ("__LIBGCC_EH_FRAME_SECTION_NAME__",
1579 : EH_FRAME_SECTION_NAME, 1);
1580 : #endif
1581 : #ifdef CTORS_SECTION_ASM_OP
1582 : builtin_define_with_value ("__LIBGCC_CTORS_SECTION_ASM_OP__",
1583 : CTORS_SECTION_ASM_OP, 1);
1584 : #endif
1585 : #ifdef DTORS_SECTION_ASM_OP
1586 : builtin_define_with_value ("__LIBGCC_DTORS_SECTION_ASM_OP__",
1587 : DTORS_SECTION_ASM_OP, 1);
1588 : #endif
1589 : #ifdef TEXT_SECTION_ASM_OP
1590 984 : builtin_define_with_value ("__LIBGCC_TEXT_SECTION_ASM_OP__",
1591 : TEXT_SECTION_ASM_OP, 1);
1592 : #endif
1593 : #ifdef INIT_SECTION_ASM_OP
1594 : builtin_define_with_value ("__LIBGCC_INIT_SECTION_ASM_OP__",
1595 : INIT_SECTION_ASM_OP, 1);
1596 : #endif
1597 : #ifdef INIT_ARRAY_SECTION_ASM_OP
1598 : /* Despite the name of this target macro, the expansion is not
1599 : actually used, and may be empty rather than a string
1600 : constant. */
1601 984 : cpp_define (pfile, "__LIBGCC_INIT_ARRAY_SECTION_ASM_OP__");
1602 : #endif
1603 :
1604 : /* For libgcc enable-execute-stack.c. */
1605 984 : builtin_define_with_int_value ("__LIBGCC_TRAMPOLINE_SIZE__",
1606 984 : TRAMPOLINE_SIZE);
1607 :
1608 : /* For libgcc generic-morestack.c and unwinder code. */
1609 984 : if (STACK_GROWS_DOWNWARD)
1610 984 : cpp_define (pfile, "__LIBGCC_STACK_GROWS_DOWNWARD__");
1611 :
1612 : /* For libgcc unwinder code. */
1613 : #ifdef DONT_USE_BUILTIN_SETJMP
1614 : cpp_define (pfile, "__LIBGCC_DONT_USE_BUILTIN_SETJMP__");
1615 : #endif
1616 : #ifdef DWARF_ALT_FRAME_RETURN_COLUMN
1617 : builtin_define_with_int_value ("__LIBGCC_DWARF_ALT_FRAME_RETURN_COLUMN__",
1618 : DWARF_ALT_FRAME_RETURN_COLUMN);
1619 : #endif
1620 984 : builtin_define_with_int_value ("__LIBGCC_DWARF_FRAME_REGISTERS__",
1621 : DWARF_FRAME_REGISTERS);
1622 984 : builtin_define_with_int_value ("__LIBGCC_DWARF_CIE_DATA_ALIGNMENT__",
1623 984 : DWARF_CIE_DATA_ALIGNMENT);
1624 :
1625 : #ifdef EH_RETURN_STACKADJ_RTX
1626 984 : cpp_define (pfile, "__LIBGCC_EH_RETURN_STACKADJ_RTX__");
1627 : #endif
1628 : #ifdef JMP_BUF_SIZE
1629 : builtin_define_with_int_value ("__LIBGCC_JMP_BUF_SIZE__",
1630 : JMP_BUF_SIZE);
1631 : #endif
1632 984 : builtin_define_with_int_value ("__LIBGCC_STACK_POINTER_REGNUM__",
1633 : STACK_POINTER_REGNUM);
1634 :
1635 : /* For libgcov. */
1636 984 : builtin_define_with_int_value ("__LIBGCC_VTABLE_USES_DESCRIPTORS__",
1637 : TARGET_VTABLE_USES_DESCRIPTORS);
1638 984 : builtin_define_with_int_value ("__LIBGCC_HAVE_LIBATOMIC",
1639 984 : targetm.have_libatomic);
1640 : }
1641 :
1642 : /* For use in assembly language. */
1643 211513 : builtin_define_with_value ("__REGISTER_PREFIX__", REGISTER_PREFIX, 0);
1644 211513 : builtin_define_with_value ("__USER_LABEL_PREFIX__", user_label_prefix, 0);
1645 :
1646 : /* Misc. */
1647 211513 : if (flag_gnu89_inline)
1648 21609 : cpp_define (pfile, "__GNUC_GNU_INLINE__");
1649 : else
1650 189904 : cpp_define (pfile, "__GNUC_STDC_INLINE__");
1651 :
1652 211513 : if (flag_no_inline)
1653 96742 : cpp_define (pfile, "__NO_INLINE__");
1654 :
1655 211513 : if (flag_iso)
1656 59790 : cpp_define (pfile, "__STRICT_ANSI__");
1657 :
1658 211513 : if (!flag_signed_char)
1659 26 : cpp_define (pfile, "__CHAR_UNSIGNED__");
1660 :
1661 211513 : if (c_dialect_cxx () && TYPE_UNSIGNED (wchar_type_node))
1662 7 : cpp_define (pfile, "__WCHAR_UNSIGNED__");
1663 :
1664 211513 : cpp_atomic_builtins (pfile);
1665 :
1666 : /* Show support for __builtin_speculation_safe_value () if the target
1667 : has been updated to fully support it. */
1668 211513 : if (targetm.have_speculation_safe_value (false))
1669 211513 : cpp_define (pfile, "__HAVE_SPECULATION_SAFE_VALUE");
1670 :
1671 : #ifdef DWARF2_UNWIND_INFO
1672 211513 : if (dwarf2out_do_cfi_asm ())
1673 211474 : cpp_define (pfile, "__GCC_HAVE_DWARF2_CFI_ASM");
1674 : #endif
1675 :
1676 : /* Make the choice of ObjC runtime visible to source code. */
1677 211513 : if (c_dialect_objc () && flag_next_runtime)
1678 0 : cpp_define (pfile, "__NEXT_RUNTIME__");
1679 :
1680 : /* Show the availability of some target pragmas. */
1681 211513 : cpp_define (pfile, "__PRAGMA_REDEFINE_EXTNAME");
1682 :
1683 : /* Make the choice of the stack protector runtime visible to source code.
1684 : The macro names and values here were chosen for compatibility with an
1685 : earlier implementation, i.e. ProPolice. */
1686 211513 : if (flag_stack_protect == SPCT_FLAG_EXPLICIT)
1687 7 : cpp_define (pfile, "__SSP_EXPLICIT__=4");
1688 211513 : if (flag_stack_protect == SPCT_FLAG_STRONG)
1689 184 : cpp_define (pfile, "__SSP_STRONG__=3");
1690 211513 : if (flag_stack_protect == SPCT_FLAG_ALL)
1691 40 : cpp_define (pfile, "__SSP_ALL__=2");
1692 211473 : else if (flag_stack_protect == SPCT_FLAG_DEFAULT)
1693 70 : cpp_define (pfile, "__SSP__=1");
1694 :
1695 211513 : if (flag_openacc)
1696 1665 : cpp_define (pfile, "_OPENACC=201711");
1697 :
1698 211513 : if (flag_openmp)
1699 6436 : cpp_define (pfile, "_OPENMP=202111");
1700 :
1701 423026 : for (i = 0; i < NUM_INT_N_ENTS; i ++)
1702 211513 : if (int_n_enabled_p[i])
1703 : {
1704 206139 : char buf[15+20];
1705 206139 : sprintf(buf, "__SIZEOF_INT%d__", int_n_data[i].bitsize);
1706 206139 : builtin_define_type_sizeof (buf,
1707 : int_n_trees[i].signed_type);
1708 : }
1709 211513 : builtin_define_type_sizeof ("__SIZEOF_WCHAR_T__", wchar_type_node);
1710 211513 : builtin_define_type_sizeof ("__SIZEOF_WINT_T__", wint_type_node);
1711 211513 : builtin_define_type_sizeof ("__SIZEOF_PTRDIFF_T__",
1712 : unsigned_ptrdiff_type_node);
1713 :
1714 : /* A straightforward target hook doesn't work, because of problems
1715 : linking that hook's body when part of non-C front ends. */
1716 : # define preprocessing_asm_p() (cpp_get_options (pfile)->lang == CLK_ASM)
1717 : # define preprocessing_trad_p() (cpp_get_options (pfile)->traditional)
1718 : # define builtin_define(TXT) cpp_define (pfile, TXT)
1719 : # define builtin_assert(TXT) cpp_assert (pfile, TXT)
1720 211513 : TARGET_CPU_CPP_BUILTINS ();
1721 211513 : TARGET_OS_CPP_BUILTINS ();
1722 211513 : TARGET_OBJFMT_CPP_BUILTINS ();
1723 :
1724 : /* Support the __declspec keyword by turning them into attributes.
1725 : Note that the current way we do this may result in a collision
1726 : with predefined attributes later on. This can be solved by using
1727 : one attribute, say __declspec__, and passing args to it. The
1728 : problem with that approach is that args are not accumulated: each
1729 : new appearance would clobber any existing args. */
1730 211513 : if (TARGET_DECLSPEC)
1731 : builtin_define ("__declspec(x)=__attribute__((x))");
1732 :
1733 : /* If decimal floating point is supported, tell the user if the
1734 : alternate format (BID) is used instead of the standard (DPD)
1735 : format. */
1736 211513 : if (ENABLE_DECIMAL_FLOAT && ENABLE_DECIMAL_BID_FORMAT)
1737 211513 : cpp_define (pfile, "__DECIMAL_BID_FORMAT__");
1738 : }
1739 :
1740 : /* Given NAME, return the command-line option that would make it be
1741 : a builtin define, or 0 if unrecognized. */
1742 :
1743 : diagnostics::option_id
1744 3710 : get_option_for_builtin_define (const char *name)
1745 : {
1746 3710 : if (!strcmp (name, "_OPENACC"))
1747 4 : return OPT_fopenacc;
1748 3706 : if (!strcmp (name, "_OPENMP"))
1749 4 : return OPT_fopenmp;
1750 3702 : return 0;
1751 : }
1752 :
1753 : /* Pass an object-like macro. If it doesn't lie in the user's
1754 : namespace, defines it unconditionally. Otherwise define a version
1755 : with two leading underscores, and another version with two leading
1756 : and trailing underscores, and define the original only if an ISO
1757 : standard was not nominated.
1758 :
1759 : e.g. passing "unix" defines "__unix", "__unix__" and possibly
1760 : "unix". Passing "_mips" defines "__mips", "__mips__" and possibly
1761 : "_mips". */
1762 : void
1763 428400 : builtin_define_std (const char *macro)
1764 : {
1765 428400 : size_t len = strlen (macro);
1766 428400 : char *buff = (char *) alloca (len + 5);
1767 428400 : char *p = buff + 2;
1768 428400 : char *q = p + len;
1769 :
1770 : /* prepend __ (or maybe just _) if in user's namespace. */
1771 428400 : memcpy (p, macro, len + 1);
1772 428400 : if (!( *p == '_' && (p[1] == '_' || ISUPPER (p[1]))))
1773 : {
1774 428400 : if (*p != '_')
1775 428400 : *--p = '_';
1776 428400 : if (p[1] != '_')
1777 428400 : *--p = '_';
1778 : }
1779 428400 : cpp_define (parse_in, p);
1780 :
1781 : /* If it was in user's namespace... */
1782 428400 : if (p != buff + 2)
1783 : {
1784 : /* Define the macro with leading and following __. */
1785 428400 : if (q[-1] != '_')
1786 428400 : *q++ = '_';
1787 428400 : if (q[-2] != '_')
1788 428400 : *q++ = '_';
1789 428400 : *q = '\0';
1790 428400 : cpp_define (parse_in, p);
1791 :
1792 : /* Finally, define the original macro if permitted. */
1793 428400 : if (!flag_iso)
1794 308770 : cpp_define (parse_in, macro);
1795 : }
1796 428400 : }
1797 :
1798 : /* Pass an object-like macro and a value to define it to. The third
1799 : parameter says whether or not to turn the value into a string
1800 : constant. */
1801 : void
1802 19023503 : builtin_define_with_value (const char *macro, const char *expansion, int is_str)
1803 : {
1804 19023503 : char *buf;
1805 19023503 : size_t mlen = strlen (macro);
1806 19023503 : size_t elen = strlen (expansion);
1807 19023503 : size_t extra = 2; /* space for an = and a NUL */
1808 :
1809 19023503 : if (is_str)
1810 : {
1811 424994 : char *quoted_expansion = (char *) alloca (elen * 4 + 1);
1812 424994 : const char *p;
1813 424994 : char *q;
1814 424994 : extra += 2; /* space for two quote marks */
1815 3189672 : for (p = expansion, q = quoted_expansion; *p; p++)
1816 : {
1817 2764678 : switch (*p)
1818 : {
1819 0 : case '\n':
1820 0 : *q++ = '\\';
1821 0 : *q++ = 'n';
1822 0 : break;
1823 :
1824 984 : case '\t':
1825 984 : *q++ = '\\';
1826 984 : *q++ = 't';
1827 984 : break;
1828 :
1829 0 : case '\\':
1830 0 : *q++ = '\\';
1831 0 : *q++ = '\\';
1832 0 : break;
1833 :
1834 0 : case '"':
1835 0 : *q++ = '\\';
1836 0 : *q++ = '"';
1837 0 : break;
1838 :
1839 2763694 : default:
1840 2763694 : if (ISPRINT ((unsigned char) *p))
1841 2763694 : *q++ = *p;
1842 : else
1843 : {
1844 0 : sprintf (q, "\\%03o", (unsigned char) *p);
1845 0 : q += 4;
1846 : }
1847 : }
1848 : }
1849 424994 : *q = '\0';
1850 424994 : expansion = quoted_expansion;
1851 424994 : elen = q - expansion;
1852 : }
1853 :
1854 19023503 : buf = (char *) alloca (mlen + elen + extra);
1855 19023503 : if (is_str)
1856 424994 : sprintf (buf, "%s=\"%s\"", macro, expansion);
1857 : else
1858 18598509 : sprintf (buf, "%s=%s", macro, expansion);
1859 :
1860 19023503 : cpp_define (parse_in, buf);
1861 19023503 : }
1862 :
1863 :
1864 : /* Pass an object-like macro and an integer value to define it to. */
1865 : void
1866 28349562 : builtin_define_with_int_value (const char *macro, HOST_WIDE_INT value)
1867 : {
1868 28349562 : char *buf;
1869 28349562 : size_t mlen = strlen (macro);
1870 28349562 : size_t vlen = 18;
1871 28349562 : size_t extra = 2; /* space for = and NUL. */
1872 :
1873 28349562 : buf = (char *) alloca (mlen + vlen + extra);
1874 28349562 : memcpy (buf, macro, mlen);
1875 28349562 : buf[mlen] = '=';
1876 28349562 : sprintf (buf + mlen + 1, HOST_WIDE_INT_PRINT_DEC, value);
1877 :
1878 28349562 : cpp_define (parse_in, buf);
1879 28349562 : }
1880 :
1881 : /* builtin_define_with_hex_fp_value is very expensive, so the following
1882 : array and function allows it to be done lazily when __DBL_MAX__
1883 : etc. is first used. */
1884 :
1885 : struct GTY(()) lazy_hex_fp_value_struct
1886 : {
1887 : const char *hex_str;
1888 : machine_mode mode;
1889 : int digits;
1890 : const char *fp_suffix;
1891 : };
1892 : /* Number of the expensive to compute macros we should evaluate lazily.
1893 : Each builtin_define_float_constants invocation calls
1894 : builtin_define_with_hex_fp_value 5 times and builtin_define_float_constants
1895 : is called for FLT, DBL, LDBL and up to NUM_FLOATN_NX_TYPES times for
1896 : FLTNN*. */
1897 : #define LAZY_HEX_FP_VALUES_CNT (5 * (3 + NUM_FLOATN_NX_TYPES))
1898 : static GTY(()) struct lazy_hex_fp_value_struct
1899 : lazy_hex_fp_values[LAZY_HEX_FP_VALUES_CNT];
1900 : static GTY(()) unsigned lazy_hex_fp_value_count;
1901 :
1902 : static void
1903 377569 : lazy_hex_fp_value (cpp_reader *, cpp_macro *macro, unsigned num)
1904 : {
1905 377569 : REAL_VALUE_TYPE real;
1906 377569 : char dec_str[64], buf1[256];
1907 :
1908 377569 : gcc_checking_assert (num < lazy_hex_fp_value_count);
1909 :
1910 377569 : real_from_string (&real, lazy_hex_fp_values[num].hex_str);
1911 377569 : real_to_decimal_for_mode (dec_str, &real, sizeof (dec_str),
1912 377569 : lazy_hex_fp_values[num].digits, 0,
1913 : lazy_hex_fp_values[num].mode);
1914 :
1915 377569 : size_t len
1916 377569 : = sprintf (buf1, "%s%s", dec_str, lazy_hex_fp_values[num].fp_suffix);
1917 377569 : gcc_assert (len < sizeof (buf1));
1918 498747 : for (unsigned idx = 0; idx < macro->count; idx++)
1919 498747 : if (macro->exp.tokens[idx].type == CPP_NUMBER)
1920 : {
1921 377569 : macro->exp.tokens[idx].val.str.len = len;
1922 377569 : macro->exp.tokens[idx].val.str.text
1923 377569 : = (const unsigned char *) ggc_strdup (buf1);
1924 377569 : return;
1925 : }
1926 :
1927 : /* We must have replaced a token. */
1928 0 : gcc_unreachable ();
1929 : }
1930 :
1931 : /* Pass an object-like macro a hexadecimal floating-point value. */
1932 : static void
1933 10575650 : builtin_define_with_hex_fp_value (const char *macro,
1934 : tree type, int digits,
1935 : const char *hex_str,
1936 : const char *fp_suffix,
1937 : const char *fp_cast)
1938 : {
1939 10575650 : REAL_VALUE_TYPE real;
1940 10575650 : char dec_str[64], buf[256], buf1[128], buf2[64];
1941 :
1942 : /* This is very expensive, so if possible expand them lazily. */
1943 10575650 : if (lazy_hex_fp_value_count < LAZY_HEX_FP_VALUES_CNT
1944 10575650 : && flag_dump_macros == 0
1945 10530200 : && flag_dump_go_spec == NULL
1946 10530000 : && !cpp_get_options (parse_in)->traditional)
1947 : {
1948 10383850 : if (lazy_hex_fp_value_count == 0)
1949 207677 : cpp_get_callbacks (parse_in)->user_lazy_macro = lazy_hex_fp_value;
1950 10383850 : sprintf (buf2, fp_cast, "1.1");
1951 10383850 : sprintf (buf1, "%s=%s", macro, buf2);
1952 10383850 : cpp_define (parse_in, buf1);
1953 10383850 : struct cpp_hashnode *node = C_CPP_HASHNODE (get_identifier (macro));
1954 10383850 : lazy_hex_fp_values[lazy_hex_fp_value_count].hex_str
1955 10383850 : = ggc_strdup (hex_str);
1956 10383850 : lazy_hex_fp_values[lazy_hex_fp_value_count].mode = TYPE_MODE (type);
1957 10383850 : lazy_hex_fp_values[lazy_hex_fp_value_count].digits = digits;
1958 10383850 : lazy_hex_fp_values[lazy_hex_fp_value_count].fp_suffix = fp_suffix;
1959 10383850 : cpp_define_lazily (parse_in, node, lazy_hex_fp_value_count++);
1960 10383850 : return;
1961 : }
1962 :
1963 : /* Hex values are really cool and convenient, except that they're
1964 : not supported in strict ISO C90 mode. First, the "p-" sequence
1965 : is not valid as part of a preprocessor number. Second, we get a
1966 : pedwarn from the preprocessor, which has no context, so we can't
1967 : suppress the warning with __extension__.
1968 :
1969 : So instead what we do is construct the number in hex (because
1970 : it's easy to get the exact correct value), parse it as a real,
1971 : then print it back out as decimal. */
1972 :
1973 191800 : real_from_string (&real, hex_str);
1974 191800 : real_to_decimal_for_mode (dec_str, &real, sizeof (dec_str), digits, 0,
1975 191800 : TYPE_MODE (type));
1976 :
1977 : /* Assemble the macro in the following fashion
1978 : macro = fp_cast [dec_str fp_suffix] */
1979 191800 : sprintf (buf2, "%s%s", dec_str, fp_suffix);
1980 191800 : sprintf (buf1, fp_cast, buf2);
1981 191800 : sprintf (buf, "%s=%s", macro, buf1);
1982 :
1983 191800 : cpp_define (parse_in, buf);
1984 : }
1985 :
1986 : /* Return a string constant for the suffix for a value of type TYPE
1987 : promoted according to the integer promotions. The type must be one
1988 : of the standard integer type nodes. */
1989 :
1990 : static const char *
1991 10152624 : type_suffix (tree type)
1992 : {
1993 10152624 : static const char *const suffixes[] = { "", "U", "L", "UL", "LL", "ULL" };
1994 10152624 : int unsigned_suffix;
1995 10152624 : int is_long;
1996 10152624 : int tp = TYPE_PRECISION (type);
1997 :
1998 10152624 : if (type == long_long_integer_type_node
1999 9908291 : || type == long_long_unsigned_type_node
2000 20028095 : || tp > TYPE_PRECISION (long_integer_type_node))
2001 : is_long = 2;
2002 9875471 : else if (type == long_integer_type_node
2003 7598058 : || type == long_unsigned_type_node
2004 15413099 : || tp > TYPE_PRECISION (integer_type_node))
2005 : is_long = 1;
2006 5537628 : else if (type == integer_type_node
2007 4252153 : || type == unsigned_type_node
2008 3384221 : || type == short_integer_type_node
2009 2538169 : || type == short_unsigned_type_node
2010 1903617 : || type == signed_char_type_node
2011 846052 : || type == unsigned_char_type_node
2012 : /* ??? "char" is not a signed or unsigned integer type and
2013 : so is not permitted for the standard typedefs, but some
2014 : systems use it anyway. */
2015 0 : || type == char_type_node)
2016 : is_long = 0;
2017 0 : else if (type == wchar_type_node)
2018 0 : return type_suffix (underlying_wchar_type_node);
2019 : else
2020 0 : gcc_unreachable ();
2021 :
2022 10152624 : unsigned_suffix = TYPE_UNSIGNED (type);
2023 10152624 : if (TYPE_PRECISION (type) < TYPE_PRECISION (integer_type_node))
2024 3384221 : unsigned_suffix = 0;
2025 10152624 : return suffixes[is_long * 2 + unsigned_suffix];
2026 : }
2027 :
2028 : /* Define MACRO as a <stdint.h> constant-suffix macro for TYPE. */
2029 : static void
2030 2115130 : builtin_define_constants (const char *macro, tree type)
2031 : {
2032 2115130 : const char *suffix;
2033 2115130 : char *buf;
2034 :
2035 2115130 : suffix = type_suffix (type);
2036 :
2037 2115130 : if (suffix[0] == 0)
2038 : {
2039 1057565 : buf = (char *) alloca (strlen (macro) + 6);
2040 1057565 : sprintf (buf, "%s(c)=c", macro);
2041 : }
2042 : else
2043 : {
2044 1057565 : buf = (char *) alloca (strlen (macro) + 9 + strlen (suffix) + 1);
2045 1057565 : sprintf (buf, "%s(c)=c ## %s", macro, suffix);
2046 : }
2047 :
2048 2115130 : cpp_define (parse_in, buf);
2049 2115130 : }
2050 :
2051 : /* Define MAX for TYPE based on the precision of the type. */
2052 :
2053 : static void
2054 7402955 : builtin_define_type_max (const char *macro, tree type)
2055 : {
2056 6345390 : builtin_define_type_minmax (NULL, macro, type);
2057 2749669 : }
2058 :
2059 : /* Given a value with COUNT LSBs set, fill BUF with a hexadecimal
2060 : representation of that value. For example, a COUNT of 10 would
2061 : return "0x3ff". */
2062 :
2063 : static void
2064 8037494 : print_bits_of_hex (char *buf, int bufsz, int count)
2065 : {
2066 8037494 : gcc_assert (bufsz > 3);
2067 8037494 : *buf++ = '0';
2068 8037494 : *buf++ = 'x';
2069 8037494 : bufsz -= 2;
2070 :
2071 8037494 : gcc_assert (count > 0);
2072 :
2073 8037494 : switch (count % 4) {
2074 : case 0:
2075 : break;
2076 0 : case 1:
2077 0 : *buf++ = '1';
2078 0 : bufsz --;
2079 0 : count -= 1;
2080 0 : break;
2081 0 : case 2:
2082 0 : *buf++ = '3';
2083 0 : bufsz --;
2084 0 : count -= 2;
2085 0 : break;
2086 4653273 : case 3:
2087 4653273 : *buf++ = '7';
2088 4653273 : bufsz --;
2089 4653273 : count -= 3;
2090 4653273 : break;
2091 : }
2092 84634347 : while (count >= 4)
2093 : {
2094 76596853 : gcc_assert (bufsz > 1);
2095 76596853 : *buf++ = 'f';
2096 76596853 : bufsz --;
2097 76596853 : count -= 4;
2098 : }
2099 8037494 : gcc_assert (bufsz > 0);
2100 8037494 : *buf++ = 0;
2101 8037494 : }
2102 :
2103 : /* Define MIN_MACRO (if not NULL) and MAX_MACRO for TYPE based on the
2104 : precision of the type. */
2105 :
2106 : static void
2107 8037494 : builtin_define_type_minmax (const char *min_macro, const char *max_macro,
2108 : tree type)
2109 : {
2110 : #define PBOH_SZ (MAX_BITSIZE_MODE_ANY_INT/4+4)
2111 8037494 : char value[PBOH_SZ];
2112 :
2113 8037494 : const char *suffix;
2114 8037494 : char *buf;
2115 8037494 : int bits;
2116 :
2117 8037494 : bits = TYPE_PRECISION (type) + (TYPE_UNSIGNED (type) ? 0 : -1);
2118 :
2119 8037494 : print_bits_of_hex (value, PBOH_SZ, bits);
2120 :
2121 8037494 : suffix = type_suffix (type);
2122 :
2123 8037494 : buf = (char *) alloca (strlen (max_macro) + 1 + strlen (value)
2124 : + strlen (suffix) + 1);
2125 8037494 : sprintf (buf, "%s=%s%s", max_macro, value, suffix);
2126 :
2127 8037494 : cpp_define (parse_in, buf);
2128 :
2129 8037494 : if (min_macro)
2130 : {
2131 634539 : if (TYPE_UNSIGNED (type))
2132 : {
2133 211526 : buf = (char *) alloca (strlen (min_macro) + 2 + strlen (suffix) + 1);
2134 211526 : sprintf (buf, "%s=0%s", min_macro, suffix);
2135 : }
2136 : else
2137 : {
2138 423013 : buf = (char *) alloca (strlen (min_macro) + 3
2139 : + strlen (max_macro) + 6);
2140 423013 : sprintf (buf, "%s=(-%s - 1)", min_macro, max_macro);
2141 : }
2142 634539 : cpp_define (parse_in, buf);
2143 : }
2144 8037494 : }
2145 :
2146 : /* Define WIDTH_MACRO for the width of TYPE. If TYPE2 is not NULL,
2147 : both types must have the same width. */
2148 :
2149 : static void
2150 4230260 : builtin_define_type_width (const char *width_macro, tree type, tree type2)
2151 : {
2152 4230260 : if (type2 != NULL_TREE)
2153 3172695 : gcc_assert (TYPE_PRECISION (type) == TYPE_PRECISION (type2));
2154 4230260 : builtin_define_with_int_value (width_macro, TYPE_PRECISION (type));
2155 4230260 : }
2156 :
2157 : #include "gt-c-family-c-cppbuiltin.h"
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