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 2094420 : mode_has_fma (machine_mode mode)
72 : {
73 2094420 : switch (mode)
74 : {
75 : #ifdef HAVE_fmasf4
76 418884 : case E_SFmode:
77 418884 : return !!HAVE_fmasf4;
78 : #endif
79 :
80 : #ifdef HAVE_fmadf4
81 628342 : case E_DFmode:
82 628342 : 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 832396 : builtin_define_type_sizeof (const char *name, tree type)
110 : {
111 1664792 : builtin_define_with_int_value (name,
112 832396 : tree_to_uhwi (TYPE_SIZE_UNIT (type)));
113 832396 : }
114 :
115 : /* Define the float.h constants for TYPE using NAME_PREFIX, FP_SUFFIX,
116 : and FP_CAST. */
117 : static void
118 2094420 : 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 2094420 : const double log10_2 = .30102999566398119521;
133 2094420 : double log10_b;
134 2094420 : const struct real_format *fmt;
135 2094420 : const struct real_format *widefmt;
136 :
137 2094420 : char name[64], buf[128];
138 2094420 : int dig, min_10_exp, max_10_exp;
139 2094420 : int decimal_dig;
140 2094420 : int type_decimal_dig;
141 :
142 2094420 : fmt = REAL_MODE_FORMAT (TYPE_MODE (type));
143 2094420 : gcc_assert (fmt->b != 10);
144 2094420 : widefmt = REAL_MODE_FORMAT (TYPE_MODE (long_double_type_node));
145 2094420 : gcc_assert (widefmt->b != 10);
146 16755360 : for (int i = 0; i < NUM_FLOATN_NX_TYPES; i++)
147 : {
148 14660940 : tree wtype = FLOATN_NX_TYPE_NODE (i);
149 14660940 : if (wtype != NULL_TREE)
150 : {
151 12566520 : const struct real_format *wfmt
152 12566520 : = REAL_MODE_FORMAT (TYPE_MODE (wtype));
153 12566520 : gcc_assert (wfmt->b != 10);
154 12566520 : if (wfmt->p > widefmt->p)
155 14660940 : widefmt = wfmt;
156 : }
157 : }
158 :
159 : /* The radix of the exponent representation. */
160 2094420 : if (type == float_type_node)
161 209442 : builtin_define_with_int_value ("__FLT_RADIX__", fmt->b);
162 2094420 : log10_b = log10_2;
163 :
164 : /* The number of radix digits, p, in the floating-point significand. */
165 2094420 : sprintf (name, "__%s_MANT_DIG__", name_prefix);
166 2094420 : 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 2094420 : dig = (fmt->p - 1) * log10_b;
176 2094420 : sprintf (name, "__%s_DIG__", name_prefix);
177 2094420 : builtin_define_with_int_value (name, dig);
178 :
179 : /* The minimum negative int x such that b**(x-1) is a normalized float. */
180 2094420 : sprintf (name, "__%s_MIN_EXP__", name_prefix);
181 2094420 : sprintf (buf, "(%d)", fmt->emin);
182 2094420 : 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 2094420 : min_10_exp = (fmt->emin - 1) * log10_b;
192 2094420 : sprintf (name, "__%s_MIN_10_EXP__", name_prefix);
193 2094420 : sprintf (buf, "(%d)", min_10_exp);
194 2094420 : builtin_define_with_value (name, buf, 0);
195 :
196 : /* The maximum int x such that b**(x-1) is a representable float. */
197 2094420 : sprintf (name, "__%s_MAX_EXP__", name_prefix);
198 2094420 : 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 2094420 : max_10_exp = fmt->emax * log10_b;
227 2094420 : sprintf (name, "__%s_MAX_10_EXP__", name_prefix);
228 2094420 : 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 2094420 : {
240 2094420 : double d_decimal_dig
241 2094420 : = 1 + (fmt->p < widefmt->p ? widefmt->p : fmt->p) * log10_b;
242 2094420 : decimal_dig = d_decimal_dig;
243 2094420 : if (decimal_dig < d_decimal_dig)
244 2094420 : decimal_dig++;
245 : }
246 : /* Similar, for this type rather than long double. */
247 2094420 : {
248 2094420 : double type_d_decimal_dig = 1 + fmt->p * log10_b;
249 2094420 : type_decimal_dig = type_d_decimal_dig;
250 2094420 : if (type_decimal_dig < type_d_decimal_dig)
251 2094420 : 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 2094420 : if (type == long_double_type_node)
256 209442 : builtin_define_with_int_value ("__DECIMAL_DIG__", type_decimal_dig);
257 2094420 : sprintf (name, "__%s_DECIMAL_DIG__", name_prefix);
258 2094420 : 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 2094420 : get_max_float (fmt, buf, sizeof (buf), false);
264 :
265 2094420 : sprintf (name, "__%s_MAX__", name_prefix);
266 2094420 : builtin_define_with_hex_fp_value (name, type, decimal_dig, buf, fp_suffix, fp_cast);
267 :
268 2094420 : get_max_float (fmt, buf, sizeof (buf), true);
269 :
270 2094420 : sprintf (name, "__%s_NORM_MAX__", name_prefix);
271 2094420 : 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 2094420 : sprintf (name, "__%s_MIN__", name_prefix);
276 2094420 : sprintf (buf, "0x1p%d", fmt->emin - 1);
277 2094420 : 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 2094420 : sprintf (name, "__%s_EPSILON__", name_prefix);
282 2094420 : 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 2094420 : sprintf (buf, "0x1p%d", 1 - fmt->p);
288 2094420 : 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 2094420 : sprintf (name, "__%s_DENORM_MIN__", name_prefix);
295 2094420 : sprintf (buf, "0x1p%d", fmt->emin - (fmt->has_denorm ? fmt->p : 1));
296 2094420 : builtin_define_with_hex_fp_value (name, type, decimal_dig,
297 : buf, fp_suffix, fp_cast);
298 :
299 2094420 : sprintf (name, "__%s_HAS_DENORM__", name_prefix);
300 2094420 : builtin_define_with_value (name, fmt->has_denorm ? "1" : "0", 0);
301 :
302 : /* For C++ std::numeric_limits<T>::has_infinity. */
303 2094420 : sprintf (name, "__%s_HAS_INFINITY__", name_prefix);
304 2094420 : builtin_define_with_int_value (name,
305 8377680 : 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 2094420 : sprintf (name, "__%s_HAS_QUIET_NAN__", name_prefix);
312 8377680 : builtin_define_with_int_value (name, MODE_HAS_NANS (TYPE_MODE (type)));
313 :
314 : /* Note whether we have fast FMA. */
315 2094420 : if (mode_has_fma (TYPE_MODE (type)) && fma_suffix != NULL)
316 : {
317 26245 : sprintf (name, "__FP_FAST_FMA%s", fma_suffix);
318 26245 : 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 2094420 : sprintf (name, "__%s_IS_IEC_60559__", name_prefix);
325 2094420 : builtin_define_with_int_value (name, fmt->ieee_bits != 0);
326 2094420 : }
327 :
328 : /* Define __DECx__ constants for TYPE using NAME_PREFIX and SUFFIX. */
329 : static void
330 837768 : builtin_define_decimal_float_constants (const char *name_prefix,
331 : const char *suffix,
332 : tree type)
333 : {
334 837768 : const struct real_format *fmt;
335 837768 : char name[64], buf[128], *p;
336 837768 : int digits;
337 :
338 837768 : fmt = REAL_MODE_FORMAT (TYPE_MODE (type));
339 :
340 : /* The number of radix digits, p, in the significand. */
341 837768 : sprintf (name, "__%s_MANT_DIG__", name_prefix);
342 837768 : 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 837768 : sprintf (name, "__%s_MIN_EXP__", name_prefix);
346 837768 : sprintf (buf, "(%d)", fmt->emin);
347 837768 : builtin_define_with_value (name, buf, 0);
348 :
349 : /* The maximum int x such that b**(x-1) is a representable float. */
350 837768 : sprintf (name, "__%s_MAX_EXP__", name_prefix);
351 837768 : builtin_define_with_int_value (name, fmt->emax);
352 :
353 : /* Compute the minimum representable value. */
354 837768 : sprintf (name, "__%s_MIN__", name_prefix);
355 837768 : sprintf (buf, "1E%d%s", fmt->emin - 1, suffix);
356 837768 : builtin_define_with_value (name, buf, 0);
357 :
358 : /* Compute the maximum representable value. */
359 837768 : sprintf (name, "__%s_MAX__", name_prefix);
360 837768 : get_max_float (fmt, buf, sizeof (buf) - strlen (suffix), false);
361 837768 : strcat (buf, suffix);
362 837768 : builtin_define_with_value (name, buf, 0);
363 :
364 : /* Compute epsilon (the difference between 1 and least value greater
365 : than 1 representable). */
366 837768 : sprintf (name, "__%s_EPSILON__", name_prefix);
367 837768 : sprintf (buf, "1E-%d%s", fmt->p - 1, suffix);
368 837768 : builtin_define_with_value (name, buf, 0);
369 :
370 : /* Minimum subnormal positive decimal value. */
371 837768 : sprintf (name, "__%s_SUBNORMAL_MIN__", name_prefix);
372 837768 : p = buf;
373 19059222 : for (digits = fmt->p; digits > 1; digits--)
374 : {
375 18221454 : *p++ = '0';
376 18221454 : if (digits == fmt->p)
377 837768 : *p++ = '.';
378 : }
379 837768 : *p = 0;
380 837768 : sprintf (&buf[fmt->p], "1E%d%s", fmt->emin - 1, suffix);
381 837768 : builtin_define_with_value (name, buf, 0);
382 837768 : }
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 209442 : builtin_define_stdint_macros (void)
441 : {
442 418884 : builtin_define_type_max ("__INTMAX_MAX__", intmax_type_node);
443 209442 : builtin_define_constants ("__INTMAX_C", intmax_type_node);
444 418884 : builtin_define_type_max ("__UINTMAX_MAX__", uintmax_type_node);
445 209442 : builtin_define_constants ("__UINTMAX_C", uintmax_type_node);
446 209442 : builtin_define_type_width ("__INTMAX_WIDTH__", intmax_type_node,
447 : uintmax_type_node);
448 209442 : if (sig_atomic_type_node)
449 : {
450 209442 : builtin_define_type_minmax ("__SIG_ATOMIC_MIN__", "__SIG_ATOMIC_MAX__",
451 : sig_atomic_type_node);
452 209442 : builtin_define_type_width ("__SIG_ATOMIC_WIDTH__", sig_atomic_type_node,
453 : NULL_TREE);
454 : }
455 209442 : if (int8_type_node)
456 209442 : builtin_define_type_max ("__INT8_MAX__", int8_type_node);
457 209442 : if (int16_type_node)
458 209442 : builtin_define_type_max ("__INT16_MAX__", int16_type_node);
459 209442 : if (int32_type_node)
460 209442 : builtin_define_type_max ("__INT32_MAX__", int32_type_node);
461 209442 : if (int64_type_node)
462 209442 : builtin_define_type_max ("__INT64_MAX__", int64_type_node);
463 209442 : if (uint8_type_node)
464 209442 : builtin_define_type_max ("__UINT8_MAX__", uint8_type_node);
465 209442 : if (c_uint16_type_node)
466 209442 : builtin_define_type_max ("__UINT16_MAX__", c_uint16_type_node);
467 209442 : if (c_uint32_type_node)
468 209442 : builtin_define_type_max ("__UINT32_MAX__", c_uint32_type_node);
469 209442 : if (c_uint64_type_node)
470 209442 : builtin_define_type_max ("__UINT64_MAX__", c_uint64_type_node);
471 209442 : if (int_least8_type_node)
472 : {
473 418884 : builtin_define_type_max ("__INT_LEAST8_MAX__", int_least8_type_node);
474 209442 : builtin_define_constants ("__INT8_C", int_least8_type_node);
475 209442 : builtin_define_type_width ("__INT_LEAST8_WIDTH__", int_least8_type_node,
476 : uint_least8_type_node);
477 : }
478 209442 : if (int_least16_type_node)
479 : {
480 418884 : builtin_define_type_max ("__INT_LEAST16_MAX__", int_least16_type_node);
481 209442 : builtin_define_constants ("__INT16_C", int_least16_type_node);
482 209442 : builtin_define_type_width ("__INT_LEAST16_WIDTH__",
483 : int_least16_type_node,
484 : uint_least16_type_node);
485 : }
486 209442 : if (int_least32_type_node)
487 : {
488 418884 : builtin_define_type_max ("__INT_LEAST32_MAX__", int_least32_type_node);
489 209442 : builtin_define_constants ("__INT32_C", int_least32_type_node);
490 209442 : builtin_define_type_width ("__INT_LEAST32_WIDTH__",
491 : int_least32_type_node,
492 : uint_least32_type_node);
493 : }
494 209442 : if (int_least64_type_node)
495 : {
496 418884 : builtin_define_type_max ("__INT_LEAST64_MAX__", int_least64_type_node);
497 209442 : builtin_define_constants ("__INT64_C", int_least64_type_node);
498 209442 : builtin_define_type_width ("__INT_LEAST64_WIDTH__",
499 : int_least64_type_node,
500 : uint_least64_type_node);
501 : }
502 209442 : if (uint_least8_type_node)
503 : {
504 418884 : builtin_define_type_max ("__UINT_LEAST8_MAX__", uint_least8_type_node);
505 209442 : builtin_define_constants ("__UINT8_C", uint_least8_type_node);
506 : }
507 209442 : if (uint_least16_type_node)
508 : {
509 418884 : builtin_define_type_max ("__UINT_LEAST16_MAX__", uint_least16_type_node);
510 209442 : builtin_define_constants ("__UINT16_C", uint_least16_type_node);
511 : }
512 209442 : if (uint_least32_type_node)
513 : {
514 418884 : builtin_define_type_max ("__UINT_LEAST32_MAX__", uint_least32_type_node);
515 209442 : builtin_define_constants ("__UINT32_C", uint_least32_type_node);
516 : }
517 209442 : if (uint_least64_type_node)
518 : {
519 418884 : builtin_define_type_max ("__UINT_LEAST64_MAX__", uint_least64_type_node);
520 209442 : builtin_define_constants ("__UINT64_C", uint_least64_type_node);
521 : }
522 209442 : if (int_fast8_type_node)
523 : {
524 418884 : builtin_define_type_max ("__INT_FAST8_MAX__", int_fast8_type_node);
525 209442 : builtin_define_type_width ("__INT_FAST8_WIDTH__", int_fast8_type_node,
526 : uint_fast8_type_node);
527 : }
528 209442 : if (int_fast16_type_node)
529 : {
530 418884 : builtin_define_type_max ("__INT_FAST16_MAX__", int_fast16_type_node);
531 209442 : builtin_define_type_width ("__INT_FAST16_WIDTH__", int_fast16_type_node,
532 : uint_fast16_type_node);
533 : }
534 209442 : if (int_fast32_type_node)
535 : {
536 418884 : builtin_define_type_max ("__INT_FAST32_MAX__", int_fast32_type_node);
537 209442 : builtin_define_type_width ("__INT_FAST32_WIDTH__", int_fast32_type_node,
538 : uint_fast32_type_node);
539 : }
540 209442 : if (int_fast64_type_node)
541 : {
542 418884 : builtin_define_type_max ("__INT_FAST64_MAX__", int_fast64_type_node);
543 209442 : builtin_define_type_width ("__INT_FAST64_WIDTH__", int_fast64_type_node,
544 : uint_fast64_type_node);
545 : }
546 209442 : if (uint_fast8_type_node)
547 209442 : builtin_define_type_max ("__UINT_FAST8_MAX__", uint_fast8_type_node);
548 209442 : if (uint_fast16_type_node)
549 209442 : builtin_define_type_max ("__UINT_FAST16_MAX__", uint_fast16_type_node);
550 209442 : if (uint_fast32_type_node)
551 209442 : builtin_define_type_max ("__UINT_FAST32_MAX__", uint_fast32_type_node);
552 209442 : if (uint_fast64_type_node)
553 209442 : builtin_define_type_max ("__UINT_FAST64_MAX__", uint_fast64_type_node);
554 209442 : if (intptr_type_node)
555 : {
556 418884 : builtin_define_type_max ("__INTPTR_MAX__", intptr_type_node);
557 209442 : builtin_define_type_width ("__INTPTR_WIDTH__", intptr_type_node,
558 : uintptr_type_node);
559 : }
560 209442 : if (uintptr_type_node)
561 209442 : builtin_define_type_max ("__UINTPTR_MAX__", uintptr_type_node);
562 209442 : }
563 :
564 : /* Adjust the optimization macros when a #pragma GCC optimization is done to
565 : reflect the current level. */
566 : void
567 635 : c_cpp_builtins_optimize_pragma (cpp_reader *pfile, tree prev_tree,
568 : tree cur_tree)
569 : {
570 635 : struct cl_optimization *prev = TREE_OPTIMIZATION (prev_tree);
571 635 : struct cl_optimization *cur = TREE_OPTIMIZATION (cur_tree);
572 635 : bool prev_fast_math;
573 635 : bool cur_fast_math;
574 :
575 : /* -undef turns off target-specific built-ins. */
576 635 : 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. */
581 635 : cpp_force_token_locations (parse_in, BUILTINS_LOCATION);
582 :
583 : /* Other target-independent built-ins determined by command-line
584 : options. */
585 635 : if (!prev->x_optimize_size && cur->x_optimize_size)
586 1 : cpp_define_unused (pfile, "__OPTIMIZE_SIZE__");
587 634 : else if (prev->x_optimize_size && !cur->x_optimize_size)
588 2 : cpp_undef (pfile, "__OPTIMIZE_SIZE__");
589 :
590 635 : if (!prev->x_optimize && cur->x_optimize)
591 122 : cpp_define_unused (pfile, "__OPTIMIZE__");
592 513 : else if (prev->x_optimize && !cur->x_optimize)
593 80 : cpp_undef (pfile, "__OPTIMIZE__");
594 :
595 635 : prev_fast_math = fast_math_flags_struct_set_p (prev);
596 635 : cur_fast_math = fast_math_flags_struct_set_p (cur);
597 635 : if (!prev_fast_math && cur_fast_math)
598 6 : cpp_define_unused (pfile, "__FAST_MATH__");
599 629 : else if (prev_fast_math && !cur_fast_math)
600 13 : cpp_undef (pfile, "__FAST_MATH__");
601 :
602 635 : if (!prev->x_flag_signaling_nans && cur->x_flag_signaling_nans)
603 0 : cpp_define_unused (pfile, "__SUPPORT_SNAN__");
604 635 : else if (prev->x_flag_signaling_nans && !cur->x_flag_signaling_nans)
605 0 : cpp_undef (pfile, "__SUPPORT_SNAN__");
606 :
607 635 : if (!prev->x_flag_errno_math && cur->x_flag_errno_math)
608 14 : cpp_undef (pfile, "__NO_MATH_ERRNO__");
609 621 : else if (prev->x_flag_errno_math && !cur->x_flag_errno_math)
610 7 : cpp_define_unused (pfile, "__NO_MATH_ERRNO__");
611 :
612 635 : 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 : }
617 627 : 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 :
623 635 : if (!prev->x_flag_reciprocal_math && cur->x_flag_reciprocal_math)
624 8 : cpp_define_unused (pfile, "__RECIPROCAL_MATH__");
625 627 : else if (prev->x_flag_reciprocal_math && !cur->x_flag_reciprocal_math)
626 15 : cpp_undef (pfile, "__RECIPROCAL_MATH__");
627 :
628 635 : if (!prev->x_flag_signed_zeros && cur->x_flag_signed_zeros)
629 15 : cpp_undef (pfile, "__NO_SIGNED_ZEROS__");
630 620 : else if (prev->x_flag_signed_zeros && !cur->x_flag_signed_zeros)
631 8 : cpp_define_unused (pfile, "__NO_SIGNED_ZEROS__");
632 :
633 635 : if (!prev->x_flag_trapping_math && cur->x_flag_trapping_math)
634 15 : cpp_undef (pfile, "__NO_TRAPPING_MATH__");
635 620 : else if (prev->x_flag_trapping_math && !cur->x_flag_trapping_math)
636 8 : cpp_define_unused (pfile, "__NO_TRAPPING_MATH__");
637 :
638 635 : if (!prev->x_flag_associative_math && cur->x_flag_associative_math)
639 8 : cpp_define_unused (pfile, "__ASSOCIATIVE_MATH__");
640 627 : else if (prev->x_flag_associative_math && !cur->x_flag_associative_math)
641 15 : cpp_undef (pfile, "__ASSOCIATIVE_MATH__");
642 :
643 635 : if (!prev->x_flag_rounding_math && cur->x_flag_rounding_math)
644 2 : cpp_define_unused (pfile, "__ROUNDING_MATH__");
645 633 : else if (prev->x_flag_rounding_math && !cur->x_flag_rounding_math)
646 2 : cpp_undef (pfile, "__ROUNDING_MATH__");
647 :
648 635 : 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 209442 : 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 209442 : bool have_swap[SWAP_LIMIT];
662 209442 : unsigned int psize;
663 :
664 : /* Clear the map of sizes compare_and swap exists for. */
665 209442 : 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 209442 : if (HAVE_sync_compare_and_swapqi || HAVE_atomic_compare_and_swapqi)
677 : {
678 209442 : cpp_define (pfile, "__GCC_HAVE_SYNC_COMPARE_AND_SWAP_1");
679 209442 : 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 209442 : if (HAVE_sync_compare_and_swaphi || HAVE_atomic_compare_and_swaphi)
689 : {
690 209442 : cpp_define (pfile, "__GCC_HAVE_SYNC_COMPARE_AND_SWAP_2");
691 209442 : 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 209442 : if (HAVE_sync_compare_and_swapsi || HAVE_atomic_compare_and_swapsi)
701 : {
702 209442 : cpp_define (pfile, "__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4");
703 209442 : 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 209442 : if (HAVE_sync_compare_and_swapdi || HAVE_atomic_compare_and_swapdi)
713 : {
714 209442 : cpp_define (pfile, "__GCC_HAVE_SYNC_COMPARE_AND_SWAP_8");
715 209442 : 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 209442 : if (HAVE_sync_compare_and_swapti || HAVE_atomic_compare_and_swapti)
725 : {
726 920 : cpp_define (pfile, "__GCC_HAVE_SYNC_COMPARE_AND_SWAP_16");
727 920 : 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 209442 : builtin_define_with_int_value ("__GCC_ATOMIC_BOOL_LOCK_FREE",
736 418884 : (have_swap[SWAP_INDEX (boolean_type_node)]? 2 : 1));
737 209442 : builtin_define_with_int_value ("__GCC_ATOMIC_CHAR_LOCK_FREE",
738 418884 : (have_swap[SWAP_INDEX (signed_char_type_node)]? 2 : 1));
739 209442 : if (flag_char8_t)
740 170964 : builtin_define_with_int_value ("__GCC_ATOMIC_CHAR8_T_LOCK_FREE",
741 341928 : (have_swap[SWAP_INDEX (char8_type_node)]? 2 : 1));
742 209442 : builtin_define_with_int_value ("__GCC_ATOMIC_CHAR16_T_LOCK_FREE",
743 418884 : (have_swap[SWAP_INDEX (char16_type_node)]? 2 : 1));
744 209442 : builtin_define_with_int_value ("__GCC_ATOMIC_CHAR32_T_LOCK_FREE",
745 418884 : (have_swap[SWAP_INDEX (char32_type_node)]? 2 : 1));
746 209442 : builtin_define_with_int_value ("__GCC_ATOMIC_WCHAR_T_LOCK_FREE",
747 418884 : (have_swap[SWAP_INDEX (wchar_type_node)]? 2 : 1));
748 209442 : builtin_define_with_int_value ("__GCC_ATOMIC_SHORT_LOCK_FREE",
749 418884 : (have_swap[SWAP_INDEX (short_integer_type_node)]? 2 : 1));
750 209442 : builtin_define_with_int_value ("__GCC_ATOMIC_INT_LOCK_FREE",
751 418884 : (have_swap[SWAP_INDEX (integer_type_node)]? 2 : 1));
752 209442 : builtin_define_with_int_value ("__GCC_ATOMIC_LONG_LOCK_FREE",
753 418884 : (have_swap[SWAP_INDEX (long_integer_type_node)]? 2 : 1));
754 209442 : builtin_define_with_int_value ("__GCC_ATOMIC_LLONG_LOCK_FREE",
755 418884 : (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 209442 : builtin_define_with_int_value ("__GCC_ATOMIC_TEST_AND_SET_TRUEVAL",
760 209442 : 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 209442 : gcc_assert (!param_destruct_interfere_size
765 : == !param_construct_interfere_size);
766 209442 : 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 209442 : builtin_define_with_int_value ("__GCC_DESTRUCTIVE_SIZE",
771 : param_destruct_interfere_size);
772 209442 : builtin_define_with_int_value ("__GCC_CONSTRUCTIVE_SIZE",
773 209442 : 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 209442 : psize = POINTER_SIZE_UNITS;
779 209442 : if (psize >= SWAP_LIMIT)
780 : psize = 0;
781 209442 : builtin_define_with_int_value ("__GCC_ATOMIC_POINTER_LOCK_FREE",
782 209442 : (have_swap[psize]? 2 : 1));
783 209442 : }
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 12460 : c_cpp_flt_eval_method_iec_559 (void)
795 : {
796 12 : enum excess_precision_type front_end_ept
797 12460 : = (flag_excess_precision == EXCESS_PRECISION_STANDARD
798 12460 : ? EXCESS_PRECISION_TYPE_STANDARD
799 : : (flag_excess_precision == EXCESS_PRECISION_FLOAT16
800 12 : ? EXCESS_PRECISION_TYPE_FLOAT16
801 : : EXCESS_PRECISION_TYPE_FAST));
802 :
803 12460 : enum flt_eval_method back_end
804 12460 : = targetm.c.excess_precision (EXCESS_PRECISION_TYPE_IMPLICIT);
805 :
806 12460 : enum flt_eval_method front_end
807 12460 : = targetm.c.excess_precision (front_end_ept);
808 :
809 12460 : 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 418884 : cpp_iec_559_value (void)
815 : {
816 : /* The default is support for IEEE 754-2008. */
817 418884 : 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 418884 : const struct real_format *ffmt
823 418884 : = REAL_MODE_FORMAT (TYPE_MODE (float_type_node));
824 418884 : const struct real_format *dfmt
825 418884 : = REAL_MODE_FORMAT (TYPE_MODE (double_type_node));
826 418884 : if (!ffmt->qnan_msb_set || !dfmt->qnan_msb_set)
827 0 : ret = 1;
828 418884 : if (ffmt->b != 2
829 418884 : || ffmt->p != 24
830 418884 : || ffmt->pnan != 24
831 418884 : || ffmt->emin != -125
832 418884 : || ffmt->emax != 128
833 418884 : || ffmt->signbit_rw != 31
834 418884 : || ffmt->round_towards_zero
835 418884 : || !ffmt->has_sign_dependent_rounding
836 418884 : || !ffmt->has_nans
837 418884 : || !ffmt->has_inf
838 418884 : || !ffmt->has_denorm
839 418884 : || !ffmt->has_signed_zero
840 418884 : || dfmt->b != 2
841 418884 : || dfmt->p != 53
842 418884 : || dfmt->pnan != 53
843 418884 : || dfmt->emin != -1021
844 418884 : || dfmt->emax != 1024
845 418884 : || dfmt->signbit_rw != 63
846 418884 : || dfmt->round_towards_zero
847 418884 : || !dfmt->has_sign_dependent_rounding
848 418884 : || !dfmt->has_nans
849 418884 : || !dfmt->has_inf
850 418884 : || !dfmt->has_denorm
851 418884 : || !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 418884 : if (flag_iso
861 117322 : && !c_dialect_cxx ()
862 431344 : && !c_cpp_flt_eval_method_iec_559 ())
863 : ret = 0;
864 :
865 418884 : if (flag_iso
866 117322 : && !c_dialect_cxx ()
867 12460 : && flag_fp_contract_mode == FP_CONTRACT_FAST)
868 418884 : ret = 0;
869 :
870 : /* Various options are contrary to IEEE 754 semantics. */
871 418884 : if (flag_unsafe_math_optimizations
872 415752 : || flag_associative_math
873 415740 : || flag_reciprocal_math
874 415732 : || flag_finite_math_only
875 415620 : || !flag_signed_zeros
876 415586 : || flag_single_precision_constant)
877 3304 : 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 418884 : if (!targetm.float_exceptions_rounding_supported_p ())
882 392 : ret = 0;
883 :
884 418884 : return ret;
885 : }
886 :
887 : /* Return the value for __GCC_IEC_559_COMPLEX. */
888 : static int
889 209442 : 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 209442 : if (flag_complex_method != 2)
897 4283 : ret = 0;
898 :
899 209442 : return ret;
900 : }
901 :
902 : /* Hook that registers front end and target-specific built-ins. */
903 : void
904 209443 : c_cpp_builtins (cpp_reader *pfile)
905 : {
906 209443 : int i;
907 :
908 : /* -undef turns off target-specific built-ins. */
909 209443 : if (flag_undef)
910 1 : return;
911 :
912 209442 : define_language_independent_builtin_macros (pfile);
913 :
914 : /* encoding definitions used by users and libraries */
915 209442 : builtin_define_with_value ("__GNUC_EXECUTION_CHARSET_NAME",
916 : cpp_get_narrow_charset_name (pfile), 1);
917 209442 : builtin_define_with_value ("__GNUC_WIDE_EXECUTION_CHARSET_NAME",
918 : cpp_get_wide_charset_name (pfile), 1);
919 :
920 209442 : if (c_dialect_cxx ())
921 : {
922 98273 : int major;
923 98273 : parse_basever (&major, NULL, NULL);
924 98273 : cpp_define_formatted (pfile, "__GNUG__=%d", major);
925 : }
926 :
927 : /* For stddef.h. They require macros defined in c-common.cc. */
928 209442 : c_stddef_cpp_builtins ();
929 :
930 : /* Variant of cpp_define which arranges for diagnostics on user #define
931 : or #undef of the macros. */
932 5510136 : auto cpp_define_warn = [] (cpp_reader *pfile, const char *def)
933 : {
934 5300694 : const char *end = strchr (def, '=');
935 5300694 : cpp_define (pfile, def);
936 5300694 : cpp_warn (pfile, def, end ? end - def : strlen (def));
937 5300694 : };
938 :
939 209442 : 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 6154054 : auto cpp_define = [=] (cpp_reader *pfile, const char *def)
944 : {
945 5524789 : if ((cxx_dialect >= cxx20 && startswith (def, "__cpp_"))
946 6493397 : || startswith (def, "__STDCPP_"))
947 5171269 : cpp_define_warn (pfile, def);
948 : else
949 884512 : ::cpp_define (pfile, def);
950 6055781 : };
951 :
952 98273 : if (flag_weak && SUPPORTS_ONE_ONLY)
953 98243 : cpp_define (pfile, "__GXX_WEAK__=1");
954 : else
955 30 : cpp_define (pfile, "__GXX_WEAK__=0");
956 :
957 98273 : if (warn_deprecated)
958 98137 : cpp_define (pfile, "__DEPRECATED");
959 :
960 98273 : if (flag_rtti)
961 : {
962 97580 : cpp_define (pfile, "__GXX_RTTI");
963 97580 : cpp_define (pfile, "__cpp_rtti=199711L");
964 : }
965 :
966 98273 : if (cxx_dialect >= cxx11)
967 : {
968 84096 : cpp_define (pfile, "__GXX_EXPERIMENTAL_CXX0X__");
969 84096 : 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 98273 : if (!pedantic || cxx_dialect > cxx11)
975 87630 : cpp_define (pfile, "__cpp_binary_literals=201304L");
976 :
977 : /* Similarly for hexadecimal floating point literals and C++17. */
978 98273 : if (!pedantic || cpp_get_options (parse_in)->extended_numbers)
979 87024 : 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 98273 : if (c_dialect_cxx ()
986 98273 : && (pedantic ? warn_vla == 0 : warn_vla <= 0))
987 52686 : cpp_define (pfile, "__cpp_runtime_arrays=198712L");
988 :
989 98273 : if (cxx_dialect >= cxx11)
990 : {
991 : /* Set feature test macros for C++11. */
992 84096 : if (cxx_dialect <= cxx14)
993 6977 : cpp_define (pfile, "__cpp_unicode_characters=200704L");
994 84096 : cpp_define (pfile, "__cpp_raw_strings=200710L");
995 84096 : cpp_define (pfile, "__cpp_unicode_literals=200710L");
996 84096 : cpp_define (pfile, "__cpp_user_defined_literals=200809L");
997 84096 : cpp_define (pfile, "__cpp_lambdas=200907L");
998 84096 : if (cxx_dialect == cxx11)
999 5685 : cpp_define (pfile, "__cpp_constexpr=200704L");
1000 84096 : if (cxx_dialect <= cxx14)
1001 6977 : cpp_define (pfile, "__cpp_range_based_for=200907L");
1002 84096 : if (cxx_dialect <= cxx14)
1003 6977 : cpp_define (pfile, "__cpp_static_assert=200410L");
1004 84096 : cpp_define (pfile, "__cpp_decltype=200707L");
1005 84096 : cpp_define (pfile, "__cpp_attributes=200809L");
1006 84096 : cpp_define (pfile, "__cpp_rvalue_reference=200610L");
1007 84096 : cpp_define (pfile, "__cpp_rvalue_references=200610L");
1008 84096 : cpp_define (pfile, "__cpp_variadic_templates=200704L");
1009 84096 : cpp_define (pfile, "__cpp_initializer_lists=200806L");
1010 84096 : cpp_define (pfile, "__cpp_delegating_constructors=200604L");
1011 84096 : cpp_define (pfile, "__cpp_nsdmi=200809L");
1012 84096 : if (!flag_new_inheriting_ctors)
1013 200 : cpp_define (pfile, "__cpp_inheriting_constructors=200802L");
1014 : else
1015 83896 : cpp_define (pfile, "__cpp_inheriting_constructors=201511L");
1016 84096 : cpp_define (pfile, "__cpp_ref_qualifiers=200710L");
1017 84096 : cpp_define (pfile, "__cpp_alias_templates=200704L");
1018 : }
1019 98273 : if (cxx_dialect > cxx11)
1020 : {
1021 : /* Set feature test macros for C++14. */
1022 78411 : cpp_define (pfile, "__cpp_return_type_deduction=201304L");
1023 78411 : if (cxx_dialect <= cxx17)
1024 : {
1025 5452 : cpp_define (pfile, "__cpp_init_captures=201304L");
1026 5452 : cpp_define (pfile, "__cpp_generic_lambdas=201304L");
1027 : }
1028 78411 : if (cxx_dialect <= cxx14)
1029 1292 : cpp_define (pfile, "__cpp_constexpr=201304L");
1030 78411 : cpp_define (pfile, "__cpp_decltype_auto=201304L");
1031 78411 : cpp_define (pfile, "__cpp_aggregate_nsdmi=201304L");
1032 78411 : cpp_define (pfile, "__cpp_variable_templates=201304L");
1033 78411 : cpp_define (pfile, "__cpp_digit_separators=201309L");
1034 : }
1035 98273 : if (cxx_dialect > cxx14)
1036 : {
1037 : /* Set feature test macros for C++17. */
1038 77119 : cpp_define (pfile, "__cpp_unicode_characters=201411L");
1039 77119 : if (cxx_dialect <= cxx23)
1040 53359 : cpp_define (pfile, "__cpp_static_assert=201411L");
1041 77119 : cpp_define (pfile, "__cpp_namespace_attributes=201411L");
1042 77119 : cpp_define (pfile, "__cpp_enumerator_attributes=201411L");
1043 77119 : cpp_define (pfile, "__cpp_nested_namespace_definitions=201411L");
1044 77119 : cpp_define (pfile, "__cpp_fold_expressions=201603L");
1045 77119 : if (cxx_dialect <= cxx17)
1046 4160 : cpp_define (pfile, "__cpp_nontype_template_args=201411L");
1047 77119 : if (!flag_range_for_ext_temps)
1048 51228 : 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 25891 : cpp_define (pfile, "__cpp_range_based_for=202211L");
1052 77119 : if (cxx_dialect <= cxx17)
1053 4160 : cpp_define (pfile, "__cpp_constexpr=201603L");
1054 77119 : cpp_define (pfile, "__cpp_if_constexpr=201606L");
1055 77119 : cpp_define (pfile, "__cpp_capture_star_this=201603L");
1056 77119 : cpp_define (pfile, "__cpp_inline_variables=201606L");
1057 77119 : cpp_define (pfile, "__cpp_aggregate_bases=201603L");
1058 77119 : if (cxx_dialect <= cxx17)
1059 4160 : cpp_define (pfile, "__cpp_deduction_guides=201703L");
1060 77119 : cpp_define (pfile, "__cpp_noexcept_function_type=201510L");
1061 : /* Old macro, superseded by
1062 : __cpp_nontype_template_parameter_auto. */
1063 77119 : cpp_define (pfile, "__cpp_template_auto=201606L");
1064 77119 : if (cxx_dialect <= cxx23)
1065 53359 : cpp_define (pfile, "__cpp_structured_bindings=201606L");
1066 77119 : cpp_define (pfile, "__cpp_variadic_using=201611L");
1067 77119 : cpp_define (pfile, "__cpp_guaranteed_copy_elision=201606L");
1068 77119 : cpp_define (pfile, "__cpp_nontype_template_parameter_auto=201606L");
1069 : }
1070 98273 : if (cxx_dialect > cxx17)
1071 : {
1072 : /* Set feature test macros for C++20. */
1073 72959 : cpp_define (pfile, "__cpp_init_captures=201803L");
1074 72959 : cpp_define (pfile, "__cpp_generic_lambdas=201707L");
1075 72959 : cpp_define (pfile, "__cpp_designated_initializers=201707L");
1076 72959 : if (cxx_dialect <= cxx20)
1077 47074 : cpp_define (pfile, "__cpp_constexpr=202002L");
1078 72959 : cpp_define (pfile, "__cpp_constexpr_in_decltype=201711L");
1079 72959 : cpp_define (pfile, "__cpp_conditional_explicit=201806L");
1080 72959 : cpp_define (pfile, "__cpp_consteval=202211L");
1081 72959 : cpp_define (pfile, "__cpp_constinit=201907L");
1082 72959 : if (cxx_dialect <= cxx20)
1083 47074 : cpp_define (pfile, "__cpp_deduction_guides=201907L");
1084 72959 : cpp_define (pfile, "__cpp_nontype_template_args=201911L");
1085 72959 : cpp_define (pfile, "__cpp_nontype_template_parameter_class=201806L");
1086 72959 : cpp_define (pfile, "__cpp_impl_destroying_delete=201806L");
1087 72959 : cpp_define (pfile, "__cpp_constexpr_dynamic_alloc=201907L");
1088 72959 : cpp_define (pfile, "__cpp_impl_three_way_comparison=201907L");
1089 72959 : cpp_define (pfile, "__cpp_aggregate_paren_init=201902L");
1090 72959 : cpp_define (pfile, "__cpp_using_enum=201907L");
1091 : }
1092 98273 : if (cxx_dialect > cxx20)
1093 : {
1094 : /* Set feature test macros for C++23. */
1095 25885 : cpp_define (pfile, "__cpp_size_t_suffix=202011L");
1096 25885 : cpp_define (pfile, "__cpp_if_consteval=202106L");
1097 25885 : cpp_define (pfile, "__cpp_auto_cast=202110L");
1098 25885 : if (cxx_dialect <= cxx23)
1099 2125 : cpp_define (pfile, "__cpp_constexpr=202211L");
1100 25885 : cpp_define (pfile, "__cpp_deduction_guides=202207L");
1101 25885 : cpp_define (pfile, "__cpp_multidimensional_subscript=202211L");
1102 25885 : cpp_define (pfile, "__cpp_named_character_escapes=202207L");
1103 25885 : cpp_define (pfile, "__cpp_static_call_operator=202207L");
1104 25885 : cpp_define (pfile, "__cpp_implicit_move=202207L");
1105 25885 : cpp_define (pfile, "__cpp_explicit_this_parameter=202110L");
1106 : }
1107 98273 : if (cxx_dialect > cxx23)
1108 : {
1109 : /* Set feature test macros for C++26. */
1110 23760 : cpp_define (pfile, "__cpp_constexpr=202406L");
1111 23760 : cpp_define (pfile, "__cpp_constexpr_exceptions=202411L");
1112 23760 : cpp_define (pfile, "__cpp_static_assert=202306L");
1113 23760 : cpp_define (pfile, "__cpp_placeholder_variables=202306L");
1114 23760 : cpp_define (pfile, "__cpp_structured_bindings=202411L");
1115 23760 : cpp_define (pfile, "__cpp_deleted_function=202403L");
1116 23760 : cpp_define (pfile, "__cpp_variadic_friend=202403L");
1117 23760 : cpp_define (pfile, "__cpp_pack_indexing=202311L");
1118 23760 : cpp_define (pfile, "__cpp_pp_embed=202502L");
1119 23760 : cpp_define (pfile, "__cpp_constexpr_virtual_inheritance=202506L");
1120 23760 : cpp_define (pfile, "__cpp_expansion_statements=202506L");
1121 23760 : if (flag_reflection)
1122 613 : cpp_define (pfile, "__cpp_impl_reflection=202603L");
1123 : else
1124 23147 : cpp_warn (pfile, "__cpp_impl_reflection");
1125 23760 : cpp_define (pfile, "__cpp_trivial_union=202502L");
1126 : }
1127 98273 : if (flag_concepts && cxx_dialect > cxx14)
1128 73078 : cpp_define (pfile, "__cpp_concepts=202002L");
1129 25195 : else if (cxx_dialect >= cxx20)
1130 0 : cpp_warn (pfile, "__cpp_concepts");
1131 98273 : if (flag_contracts)
1132 23806 : cpp_define (pfile, "__cpp_contracts=202502L");
1133 74467 : else if (cxx_dialect >= cxx26)
1134 0 : cpp_warn (pfile, "__cpp_contracts");
1135 98273 : if (flag_modules)
1136 : /* The std-defined value is 201907L, but I don't think we can
1137 : claim victory yet. 201810 is the p1103 date. */
1138 4883 : cpp_define (pfile, "__cpp_modules=201810L");
1139 93390 : else if (cxx_dialect >= cxx20)
1140 69601 : cpp_warn (pfile, "__cpp_modules");
1141 98273 : if (flag_coroutines)
1142 73923 : cpp_define (pfile, "__cpp_impl_coroutine=201902L"); /* n4861, DIS */
1143 24350 : else if (cxx_dialect >= cxx20)
1144 0 : cpp_warn (pfile, "__cpp_impl_coroutine");
1145 98273 : if (flag_tm)
1146 : /* Use a value smaller than the 201505 specified in
1147 : the TS, since we don't yet support atomic_cancel. */
1148 318 : cpp_define (pfile, "__cpp_transactional_memory=201500L");
1149 98273 : if (flag_sized_deallocation)
1150 78409 : cpp_define (pfile, "__cpp_sized_deallocation=201309L");
1151 19864 : else if (cxx_dialect >= cxx20)
1152 2 : cpp_warn (pfile, "__cpp_sized_deallocation");
1153 98273 : if (aligned_new_threshold)
1154 : {
1155 77122 : cpp_define (pfile, "__cpp_aligned_new=201606L");
1156 77122 : cpp_define_formatted (pfile, "__STDCPP_DEFAULT_NEW_ALIGNMENT__=%d",
1157 : aligned_new_threshold);
1158 : }
1159 21151 : else if (cxx_dialect >= cxx20)
1160 0 : cpp_warn (pfile, "__cpp_aligned_new");
1161 98273 : if (cxx_dialect >= cxx17)
1162 77119 : cpp_warn (pfile, "__STDCPP_DEFAULT_NEW_ALIGNMENT__");
1163 98273 : if (flag_new_ttp)
1164 77107 : cpp_define (pfile, "__cpp_template_template_args=201611L");
1165 21166 : else if (cxx_dialect >= cxx20)
1166 19 : cpp_warn (pfile, "__cpp_template_template_args");
1167 98273 : if (flag_threadsafe_statics)
1168 98267 : cpp_define (pfile, "__cpp_threadsafe_static_init=200806L");
1169 6 : else if (cxx_dialect >= cxx20)
1170 4 : cpp_warn (pfile, "__cpp_threadsafe_static_init");
1171 98273 : if (flag_char8_t)
1172 72977 : cpp_define (pfile, "__cpp_char8_t=202207L");
1173 25296 : else if (cxx_dialect >= cxx20)
1174 15 : cpp_warn (pfile, "__cpp_char8_t");
1175 : #ifndef THREAD_MODEL_SPEC
1176 : /* Targets that define THREAD_MODEL_SPEC need to define
1177 : __STDCPP_THREADS__ in their config/XXX/XXX-c.c themselves. */
1178 98273 : if (cxx_dialect >= cxx11 && strcmp (thread_model, "single") != 0)
1179 84096 : cpp_define (pfile, "__STDCPP_THREADS__=1");
1180 : else
1181 : #endif
1182 : if (cxx_dialect >= cxx11)
1183 : cpp_warn (pfile, "__STDCPP_THREADS__");
1184 98273 : if (flag_implicit_constexpr)
1185 6 : cpp_define (pfile, "__cpp_implicit_constexpr=20211111L");
1186 : }
1187 : /* Note that we define this for C as well, so that we know if
1188 : __attribute__((cleanup)) will interface with EH. */
1189 209442 : if (flag_exceptions)
1190 : {
1191 97536 : cpp_define (pfile, "__EXCEPTIONS");
1192 97536 : if (c_dialect_cxx ())
1193 97018 : cpp_define (pfile, "__cpp_exceptions=199711L");
1194 : }
1195 :
1196 : /* Represents the C++ ABI version, always defined so it can be used while
1197 : preprocessing C and assembler. */
1198 209442 : if (flag_abi_version == 0)
1199 : /* We should have set this to something real in c_common_post_options. */
1200 0 : gcc_unreachable ();
1201 209442 : else if (flag_abi_version == 1)
1202 : /* Due to a historical accident, this version had the value
1203 : "102". */
1204 0 : builtin_define_with_int_value ("__GXX_ABI_VERSION", 102);
1205 : else
1206 : /* Newer versions have values 1002, 1003, .... */
1207 209442 : builtin_define_with_int_value ("__GXX_ABI_VERSION",
1208 209442 : 1000 + flag_abi_version);
1209 :
1210 : /* libgcc needs to know this. */
1211 209442 : if (targetm_common.except_unwind_info (&global_options) == UI_SJLJ)
1212 0 : cpp_define (pfile, "__USING_SJLJ_EXCEPTIONS__");
1213 :
1214 : /* limits.h and stdint.h need to know these. */
1215 418884 : builtin_define_type_max ("__SCHAR_MAX__", signed_char_type_node);
1216 418884 : builtin_define_type_max ("__SHRT_MAX__", short_integer_type_node);
1217 418884 : builtin_define_type_max ("__INT_MAX__", integer_type_node);
1218 418884 : builtin_define_type_max ("__LONG_MAX__", long_integer_type_node);
1219 418884 : builtin_define_type_max ("__LONG_LONG_MAX__", long_long_integer_type_node);
1220 209442 : builtin_define_type_minmax ("__WCHAR_MIN__", "__WCHAR_MAX__",
1221 : underlying_wchar_type_node);
1222 209442 : builtin_define_type_minmax ("__WINT_MIN__", "__WINT_MAX__", wint_type_node);
1223 418884 : builtin_define_type_max ("__PTRDIFF_MAX__", ptrdiff_type_node);
1224 418884 : builtin_define_type_max ("__SIZE_MAX__", size_type_node);
1225 :
1226 : /* These are needed for TS 18661-1. */
1227 209442 : builtin_define_type_width ("__SCHAR_WIDTH__", signed_char_type_node,
1228 : unsigned_char_type_node);
1229 209442 : builtin_define_type_width ("__SHRT_WIDTH__", short_integer_type_node,
1230 : short_unsigned_type_node);
1231 209442 : builtin_define_type_width ("__INT_WIDTH__", integer_type_node,
1232 : unsigned_type_node);
1233 209442 : builtin_define_type_width ("__LONG_WIDTH__", long_integer_type_node,
1234 : long_unsigned_type_node);
1235 209442 : builtin_define_type_width ("__LONG_LONG_WIDTH__",
1236 : long_long_integer_type_node,
1237 : long_long_unsigned_type_node);
1238 209442 : builtin_define_type_width ("__WCHAR_WIDTH__", underlying_wchar_type_node,
1239 : NULL_TREE);
1240 209442 : builtin_define_type_width ("__WINT_WIDTH__", wint_type_node, NULL_TREE);
1241 209442 : builtin_define_type_width ("__PTRDIFF_WIDTH__", ptrdiff_type_node, NULL_TREE);
1242 209442 : builtin_define_type_width ("__SIZE_WIDTH__", size_type_node, NULL_TREE);
1243 :
1244 209442 : if (!c_dialect_cxx ())
1245 : {
1246 111169 : struct bitint_info info;
1247 : /* For now, restrict __BITINT_MAXWIDTH__ to what can be represented in
1248 : wide_int and widest_int. */
1249 111169 : if (targetm.c.bitint_type_info (WIDE_INT_MAX_PRECISION - 1, &info))
1250 : {
1251 111169 : cpp_define_formatted (pfile, "__BITINT_MAXWIDTH__=%d",
1252 : (int) WIDE_INT_MAX_PRECISION - 1);
1253 111169 : if (flag_building_libgcc)
1254 : {
1255 984 : scalar_int_mode limb_mode
1256 984 : = as_a <scalar_int_mode> (info.limb_mode);
1257 984 : cpp_define_formatted (pfile, "__LIBGCC_BITINT_LIMB_WIDTH__=%d",
1258 984 : (int) GET_MODE_PRECISION (limb_mode));
1259 984 : cpp_define_formatted (pfile, "__LIBGCC_BITINT_ORDER__=%s",
1260 984 : info.big_endian
1261 : ? "__ORDER_BIG_ENDIAN__"
1262 : : "__ORDER_LITTLE_ENDIAN__");
1263 : }
1264 : }
1265 : }
1266 :
1267 209442 : if (c_dialect_cxx ())
1268 196546 : for (i = 0; i < NUM_INT_N_ENTS; i ++)
1269 98273 : if (int_n_enabled_p[i])
1270 : {
1271 97470 : char buf[35+20+20];
1272 :
1273 : /* These are used to configure the C++ library. */
1274 :
1275 97470 : if (!flag_iso || int_n_data[i].bitsize == POINTER_SIZE)
1276 : {
1277 45089 : sprintf (buf, "__GLIBCXX_TYPE_INT_N_%d=__int%d", i, int_n_data[i].bitsize);
1278 45089 : cpp_define (parse_in, buf);
1279 :
1280 45089 : sprintf (buf, "__GLIBCXX_BITSIZE_INT_N_%d=%d", i, int_n_data[i].bitsize);
1281 45089 : cpp_define (parse_in, buf);
1282 : }
1283 : }
1284 :
1285 : /* stdint.h and the testsuite need to know these. */
1286 209442 : builtin_define_stdint_macros ();
1287 :
1288 : /* Provide information for library headers to determine whether to
1289 : define macros such as __STDC_IEC_559__ and
1290 : __STDC_IEC_559_COMPLEX__. */
1291 209442 : builtin_define_with_int_value ("__GCC_IEC_559", cpp_iec_559_value ());
1292 209442 : builtin_define_with_int_value ("__GCC_IEC_559_COMPLEX",
1293 209442 : cpp_iec_559_complex_value ());
1294 :
1295 : /* float.h needs these to correctly set FLT_EVAL_METHOD
1296 :
1297 : We define two values:
1298 :
1299 : __FLT_EVAL_METHOD__
1300 : Which, depending on the value given for
1301 : -fpermitted-flt-eval-methods, may be limited to only those values
1302 : for FLT_EVAL_METHOD defined in C99/C11.
1303 :
1304 : __FLT_EVAL_METHOD_TS_18661_3__
1305 : Which always permits the values for FLT_EVAL_METHOD defined in
1306 : ISO/IEC TS 18661-3. */
1307 209442 : builtin_define_with_int_value ("__FLT_EVAL_METHOD__",
1308 209442 : c_flt_eval_method (true));
1309 209442 : builtin_define_with_int_value ("__FLT_EVAL_METHOD_TS_18661_3__",
1310 209442 : c_flt_eval_method (false));
1311 :
1312 : /* And decfloat.h needs this. */
1313 209442 : builtin_define_with_int_value ("__DEC_EVAL_METHOD__",
1314 : TARGET_DEC_EVAL_METHOD);
1315 :
1316 209442 : builtin_define_float_constants ("FLT", "F", "%s", "F", float_type_node);
1317 : /* Cast the double precision constants. This is needed when single
1318 : precision constants are specified or when pragma FLOAT_CONST_DECIMAL64
1319 : is used. The correct result is computed by the compiler when using
1320 : macros that include a cast. We use a different cast for C++ to avoid
1321 : problems with -Wold-style-cast. */
1322 209442 : builtin_define_float_constants ("DBL", "L",
1323 209442 : (c_dialect_cxx ()
1324 : ? "double(%s)"
1325 : : "((double)%s)"),
1326 : "", double_type_node);
1327 209442 : builtin_define_float_constants ("LDBL", "L", "%s", "L",
1328 : long_double_type_node);
1329 :
1330 1675536 : for (int i = 0; i < NUM_FLOATN_NX_TYPES; i++)
1331 : {
1332 1466094 : if (c_dialect_cxx ()
1333 687911 : && cxx_dialect > cxx20
1334 181195 : && !floatn_nx_types[i].extended)
1335 : {
1336 103540 : char name[sizeof ("__STDCPP_FLOAT128_T__=1")];
1337 103540 : if (FLOATN_NX_TYPE_NODE (i) == NULL_TREE)
1338 : {
1339 0 : sprintf (name, "__STDCPP_FLOAT%d_T__", floatn_nx_types[i].n);
1340 0 : cpp_warn (pfile, name);
1341 0 : continue;
1342 : }
1343 103540 : sprintf (name, "__STDCPP_FLOAT%d_T__=1", floatn_nx_types[i].n);
1344 103540 : cpp_define_warn (pfile, name);
1345 103540 : }
1346 1362554 : else if (FLOATN_NX_TYPE_NODE (i) == NULL_TREE)
1347 209442 : continue;
1348 1256652 : char prefix[20], csuffix[20];
1349 2513304 : sprintf (prefix, "FLT%d%s", floatn_nx_types[i].n,
1350 1256652 : floatn_nx_types[i].extended ? "X" : "");
1351 1256652 : sprintf (csuffix, "F%d%s", floatn_nx_types[i].n,
1352 : floatn_nx_types[i].extended ? "x" : "");
1353 1256652 : builtin_define_float_constants (prefix, ggc_strdup (csuffix), "%s",
1354 1256652 : csuffix, FLOATN_NX_TYPE_NODE (i));
1355 : }
1356 209442 : if (bfloat16_type_node)
1357 : {
1358 209442 : if (c_dialect_cxx () && cxx_dialect > cxx20)
1359 25885 : cpp_define_warn (pfile, "__STDCPP_BFLOAT16_T__=1");
1360 209442 : builtin_define_float_constants ("BFLT16", "BF16", "%s",
1361 : "BF16", bfloat16_type_node);
1362 : }
1363 0 : else if (cxx_dialect >= cxx23)
1364 0 : cpp_warn (pfile, "__STDCPP_BFLOAT16_T__");
1365 :
1366 : /* For float.h. */
1367 209442 : if (targetm.decimal_float_supported_p ())
1368 : {
1369 209442 : builtin_define_decimal_float_constants ("DEC32", "DF",
1370 : dfloat32_type_node);
1371 209442 : builtin_define_decimal_float_constants ("DEC64", "DD",
1372 : dfloat64_type_node);
1373 209442 : builtin_define_decimal_float_constants ("DEC128", "DL",
1374 : dfloat128_type_node);
1375 209442 : if (dfloat64x_type_node)
1376 209442 : builtin_define_decimal_float_constants ("DEC64X", "D64x",
1377 : dfloat64x_type_node);
1378 : }
1379 :
1380 : /* For fixed-point fibt, ibit, max, min, and epsilon. */
1381 209442 : if (targetm.fixed_point_supported_p ())
1382 : {
1383 0 : builtin_define_fixed_point_constants ("SFRACT", "HR",
1384 : short_fract_type_node);
1385 0 : builtin_define_fixed_point_constants ("USFRACT", "UHR",
1386 : unsigned_short_fract_type_node);
1387 0 : builtin_define_fixed_point_constants ("FRACT", "R",
1388 : fract_type_node);
1389 0 : builtin_define_fixed_point_constants ("UFRACT", "UR",
1390 : unsigned_fract_type_node);
1391 0 : builtin_define_fixed_point_constants ("LFRACT", "LR",
1392 : long_fract_type_node);
1393 0 : builtin_define_fixed_point_constants ("ULFRACT", "ULR",
1394 : unsigned_long_fract_type_node);
1395 0 : builtin_define_fixed_point_constants ("LLFRACT", "LLR",
1396 : long_long_fract_type_node);
1397 0 : builtin_define_fixed_point_constants ("ULLFRACT", "ULLR",
1398 : unsigned_long_long_fract_type_node);
1399 0 : builtin_define_fixed_point_constants ("SACCUM", "HK",
1400 : short_accum_type_node);
1401 0 : builtin_define_fixed_point_constants ("USACCUM", "UHK",
1402 : unsigned_short_accum_type_node);
1403 0 : builtin_define_fixed_point_constants ("ACCUM", "K",
1404 : accum_type_node);
1405 0 : builtin_define_fixed_point_constants ("UACCUM", "UK",
1406 : unsigned_accum_type_node);
1407 0 : builtin_define_fixed_point_constants ("LACCUM", "LK",
1408 : long_accum_type_node);
1409 0 : builtin_define_fixed_point_constants ("ULACCUM", "ULK",
1410 : unsigned_long_accum_type_node);
1411 0 : builtin_define_fixed_point_constants ("LLACCUM", "LLK",
1412 : long_long_accum_type_node);
1413 0 : builtin_define_fixed_point_constants ("ULLACCUM", "ULLK",
1414 : unsigned_long_long_accum_type_node);
1415 :
1416 0 : builtin_define_fixed_point_constants ("QQ", "", qq_type_node);
1417 0 : builtin_define_fixed_point_constants ("HQ", "", hq_type_node);
1418 0 : builtin_define_fixed_point_constants ("SQ", "", sq_type_node);
1419 0 : builtin_define_fixed_point_constants ("DQ", "", dq_type_node);
1420 0 : builtin_define_fixed_point_constants ("TQ", "", tq_type_node);
1421 0 : builtin_define_fixed_point_constants ("UQQ", "", uqq_type_node);
1422 0 : builtin_define_fixed_point_constants ("UHQ", "", uhq_type_node);
1423 0 : builtin_define_fixed_point_constants ("USQ", "", usq_type_node);
1424 0 : builtin_define_fixed_point_constants ("UDQ", "", udq_type_node);
1425 0 : builtin_define_fixed_point_constants ("UTQ", "", utq_type_node);
1426 0 : builtin_define_fixed_point_constants ("HA", "", ha_type_node);
1427 0 : builtin_define_fixed_point_constants ("SA", "", sa_type_node);
1428 0 : builtin_define_fixed_point_constants ("DA", "", da_type_node);
1429 0 : builtin_define_fixed_point_constants ("TA", "", ta_type_node);
1430 0 : builtin_define_fixed_point_constants ("UHA", "", uha_type_node);
1431 0 : builtin_define_fixed_point_constants ("USA", "", usa_type_node);
1432 0 : builtin_define_fixed_point_constants ("UDA", "", uda_type_node);
1433 0 : builtin_define_fixed_point_constants ("UTA", "", uta_type_node);
1434 : }
1435 :
1436 : /* For libgcc-internal use only. */
1437 209442 : if (flag_building_libgcc)
1438 : {
1439 : /* Properties of floating-point modes for libgcc2.c. */
1440 984 : opt_scalar_float_mode mode_iter;
1441 6888 : FOR_EACH_MODE_IN_CLASS (mode_iter, MODE_FLOAT)
1442 : {
1443 5904 : scalar_float_mode mode = mode_iter.require ();
1444 5904 : const char *name = GET_MODE_NAME (mode);
1445 5904 : const size_t name_len = strlen (name);
1446 5904 : char float_h_prefix[16] = "";
1447 5904 : char *macro_name
1448 5904 : = XALLOCAVEC (char, name_len + sizeof ("__LIBGCC__MANT_DIG__"));
1449 5904 : sprintf (macro_name, "__LIBGCC_%s_MANT_DIG__", name);
1450 11808 : builtin_define_with_int_value (macro_name,
1451 5904 : REAL_MODE_FORMAT (mode)->p);
1452 5904 : if (!targetm.scalar_mode_supported_p (mode)
1453 5904 : || !targetm.libgcc_floating_mode_supported_p (mode))
1454 0 : continue;
1455 5904 : macro_name = XALLOCAVEC (char, name_len
1456 : + sizeof ("__LIBGCC_HAS__MODE__"));
1457 5904 : sprintf (macro_name, "__LIBGCC_HAS_%s_MODE__", name);
1458 5904 : cpp_define (pfile, macro_name);
1459 5904 : macro_name = XALLOCAVEC (char, name_len
1460 : + sizeof ("__LIBGCC__FUNC_EXT__"));
1461 5904 : sprintf (macro_name, "__LIBGCC_%s_FUNC_EXT__", name);
1462 5904 : char suffix[20] = "";
1463 5904 : if (mode == TYPE_MODE (double_type_node))
1464 : {
1465 : /* Empty suffix correct. */
1466 984 : memcpy (float_h_prefix, "DBL", 4);
1467 : }
1468 4920 : else if (mode == TYPE_MODE (float_type_node))
1469 : {
1470 984 : suffix[0] = 'f';
1471 984 : memcpy (float_h_prefix, "FLT", 4);
1472 : }
1473 3936 : else if (mode == TYPE_MODE (long_double_type_node))
1474 : {
1475 984 : suffix[0] = 'l';
1476 984 : memcpy (float_h_prefix, "LDBL", 5);
1477 : }
1478 2952 : else if (bfloat16_type_node
1479 2952 : && mode == TYPE_MODE (bfloat16_type_node))
1480 : {
1481 984 : memcpy (suffix, "bf16", 5);
1482 984 : memcpy (float_h_prefix, "BFLT16", 7);
1483 : }
1484 : else
1485 : {
1486 4920 : bool found_suffix = false;
1487 4920 : for (int i = 0; i < NUM_FLOATN_NX_TYPES; i++)
1488 4920 : if (FLOATN_NX_TYPE_NODE (i) != NULL_TREE
1489 4920 : && mode == TYPE_MODE (FLOATN_NX_TYPE_NODE (i)))
1490 : {
1491 3936 : sprintf (suffix, "f%d%s", floatn_nx_types[i].n,
1492 1968 : floatn_nx_types[i].extended ? "x" : "");
1493 1968 : found_suffix = true;
1494 1968 : sprintf (float_h_prefix, "FLT%d%s", floatn_nx_types[i].n,
1495 : floatn_nx_types[i].extended ? "X" : "");
1496 1968 : break;
1497 : }
1498 1968 : gcc_assert (found_suffix);
1499 : }
1500 5904 : builtin_define_with_value (macro_name, suffix, 0);
1501 :
1502 : /* The way __LIBGCC_*_EXCESS_PRECISION__ is used is about
1503 : eliminating excess precision from results assigned to
1504 : variables - meaning it should be about the implicit excess
1505 : precision only. */
1506 5904 : bool excess_precision = false;
1507 5904 : machine_mode float16_type_mode = (float16_type_node
1508 5904 : ? TYPE_MODE (float16_type_node)
1509 5904 : : VOIDmode);
1510 5904 : machine_mode bfloat16_type_mode = (bfloat16_type_node
1511 5904 : ? TYPE_MODE (bfloat16_type_node)
1512 5904 : : VOIDmode);
1513 5904 : switch (targetm.c.excess_precision
1514 5904 : (EXCESS_PRECISION_TYPE_IMPLICIT))
1515 : {
1516 2898 : case FLT_EVAL_METHOD_UNPREDICTABLE:
1517 2898 : case FLT_EVAL_METHOD_PROMOTE_TO_LONG_DOUBLE:
1518 2898 : excess_precision = (mode == float16_type_mode
1519 2415 : || mode == bfloat16_type_mode
1520 1932 : || mode == TYPE_MODE (float_type_node)
1521 4347 : || mode == TYPE_MODE (double_type_node));
1522 : break;
1523 :
1524 0 : case FLT_EVAL_METHOD_PROMOTE_TO_DOUBLE:
1525 0 : excess_precision = (mode == float16_type_mode
1526 0 : || mode == bfloat16_type_mode
1527 0 : || mode == TYPE_MODE (float_type_node));
1528 : break;
1529 3006 : case FLT_EVAL_METHOD_PROMOTE_TO_FLOAT:
1530 3006 : excess_precision = (mode == float16_type_mode
1531 3006 : || mode == bfloat16_type_mode);
1532 : break;
1533 : case FLT_EVAL_METHOD_PROMOTE_TO_FLOAT16:
1534 : excess_precision = false;
1535 : break;
1536 0 : default:
1537 0 : gcc_unreachable ();
1538 : }
1539 5904 : macro_name = XALLOCAVEC (char, name_len
1540 : + sizeof ("__LIBGCC__EXCESS_PRECISION__"));
1541 5904 : sprintf (macro_name, "__LIBGCC_%s_EXCESS_PRECISION__", name);
1542 5904 : builtin_define_with_int_value (macro_name, excess_precision);
1543 :
1544 5904 : char val_name[64];
1545 :
1546 5904 : macro_name = XALLOCAVEC (char, name_len
1547 : + sizeof ("__LIBGCC__EPSILON__"));
1548 5904 : sprintf (macro_name, "__LIBGCC_%s_EPSILON__", name);
1549 5904 : sprintf (val_name, "__%s_EPSILON__", float_h_prefix);
1550 5904 : builtin_define_with_value (macro_name, val_name, 0);
1551 :
1552 5904 : macro_name = XALLOCAVEC (char, name_len + sizeof ("__LIBGCC__MAX__"));
1553 5904 : sprintf (macro_name, "__LIBGCC_%s_MAX__", name);
1554 5904 : sprintf (val_name, "__%s_MAX__", float_h_prefix);
1555 5904 : builtin_define_with_value (macro_name, val_name, 0);
1556 :
1557 5904 : macro_name = XALLOCAVEC (char, name_len + sizeof ("__LIBGCC__MIN__"));
1558 5904 : sprintf (macro_name, "__LIBGCC_%s_MIN__", name);
1559 5904 : sprintf (val_name, "__%s_MIN__", float_h_prefix);
1560 5904 : builtin_define_with_value (macro_name, val_name, 0);
1561 :
1562 : #ifdef HAVE_adddf3
1563 5904 : builtin_define_with_int_value ("__LIBGCC_HAVE_HWDBL__",
1564 5904 : HAVE_adddf3);
1565 : #endif
1566 : }
1567 :
1568 : /* For libgcc crtstuff.c and libgcc2.c. */
1569 984 : builtin_define_with_int_value ("__LIBGCC_EH_TABLES_CAN_BE_READ_ONLY__",
1570 : EH_TABLES_CAN_BE_READ_ONLY);
1571 : #ifdef EH_FRAME_SECTION_NAME
1572 984 : builtin_define_with_value ("__LIBGCC_EH_FRAME_SECTION_NAME__",
1573 : EH_FRAME_SECTION_NAME, 1);
1574 : #endif
1575 : #ifdef CTORS_SECTION_ASM_OP
1576 : builtin_define_with_value ("__LIBGCC_CTORS_SECTION_ASM_OP__",
1577 : CTORS_SECTION_ASM_OP, 1);
1578 : #endif
1579 : #ifdef DTORS_SECTION_ASM_OP
1580 : builtin_define_with_value ("__LIBGCC_DTORS_SECTION_ASM_OP__",
1581 : DTORS_SECTION_ASM_OP, 1);
1582 : #endif
1583 : #ifdef TEXT_SECTION_ASM_OP
1584 984 : builtin_define_with_value ("__LIBGCC_TEXT_SECTION_ASM_OP__",
1585 : TEXT_SECTION_ASM_OP, 1);
1586 : #endif
1587 : #ifdef INIT_SECTION_ASM_OP
1588 : builtin_define_with_value ("__LIBGCC_INIT_SECTION_ASM_OP__",
1589 : INIT_SECTION_ASM_OP, 1);
1590 : #endif
1591 : #ifdef INIT_ARRAY_SECTION_ASM_OP
1592 : /* Despite the name of this target macro, the expansion is not
1593 : actually used, and may be empty rather than a string
1594 : constant. */
1595 984 : cpp_define (pfile, "__LIBGCC_INIT_ARRAY_SECTION_ASM_OP__");
1596 : #endif
1597 :
1598 : /* For libgcc enable-execute-stack.c. */
1599 984 : builtin_define_with_int_value ("__LIBGCC_TRAMPOLINE_SIZE__",
1600 984 : TRAMPOLINE_SIZE);
1601 :
1602 : /* For libgcc generic-morestack.c and unwinder code. */
1603 984 : if (STACK_GROWS_DOWNWARD)
1604 984 : cpp_define (pfile, "__LIBGCC_STACK_GROWS_DOWNWARD__");
1605 :
1606 : /* For libgcc unwinder code. */
1607 : #ifdef DONT_USE_BUILTIN_SETJMP
1608 : cpp_define (pfile, "__LIBGCC_DONT_USE_BUILTIN_SETJMP__");
1609 : #endif
1610 : #ifdef DWARF_ALT_FRAME_RETURN_COLUMN
1611 : builtin_define_with_int_value ("__LIBGCC_DWARF_ALT_FRAME_RETURN_COLUMN__",
1612 : DWARF_ALT_FRAME_RETURN_COLUMN);
1613 : #endif
1614 984 : builtin_define_with_int_value ("__LIBGCC_DWARF_FRAME_REGISTERS__",
1615 : DWARF_FRAME_REGISTERS);
1616 984 : builtin_define_with_int_value ("__LIBGCC_DWARF_CIE_DATA_ALIGNMENT__",
1617 984 : DWARF_CIE_DATA_ALIGNMENT);
1618 :
1619 : #ifdef EH_RETURN_STACKADJ_RTX
1620 984 : cpp_define (pfile, "__LIBGCC_EH_RETURN_STACKADJ_RTX__");
1621 : #endif
1622 : #ifdef JMP_BUF_SIZE
1623 : builtin_define_with_int_value ("__LIBGCC_JMP_BUF_SIZE__",
1624 : JMP_BUF_SIZE);
1625 : #endif
1626 984 : builtin_define_with_int_value ("__LIBGCC_STACK_POINTER_REGNUM__",
1627 : STACK_POINTER_REGNUM);
1628 :
1629 : /* For libgcov. */
1630 984 : builtin_define_with_int_value ("__LIBGCC_VTABLE_USES_DESCRIPTORS__",
1631 : TARGET_VTABLE_USES_DESCRIPTORS);
1632 984 : builtin_define_with_int_value ("__LIBGCC_HAVE_LIBATOMIC",
1633 984 : targetm.have_libatomic);
1634 : }
1635 :
1636 : /* For use in assembly language. */
1637 209442 : builtin_define_with_value ("__REGISTER_PREFIX__", REGISTER_PREFIX, 0);
1638 209442 : builtin_define_with_value ("__USER_LABEL_PREFIX__", user_label_prefix, 0);
1639 :
1640 : /* Misc. */
1641 209442 : if (flag_gnu89_inline)
1642 21568 : cpp_define (pfile, "__GNUC_GNU_INLINE__");
1643 : else
1644 187874 : cpp_define (pfile, "__GNUC_STDC_INLINE__");
1645 :
1646 209442 : if (flag_no_inline)
1647 95586 : cpp_define (pfile, "__NO_INLINE__");
1648 :
1649 209442 : if (flag_iso)
1650 58661 : cpp_define (pfile, "__STRICT_ANSI__");
1651 :
1652 209442 : if (!flag_signed_char)
1653 26 : cpp_define (pfile, "__CHAR_UNSIGNED__");
1654 :
1655 209442 : if (c_dialect_cxx () && TYPE_UNSIGNED (wchar_type_node))
1656 7 : cpp_define (pfile, "__WCHAR_UNSIGNED__");
1657 :
1658 209442 : cpp_atomic_builtins (pfile);
1659 :
1660 : /* Show support for __builtin_speculation_safe_value () if the target
1661 : has been updated to fully support it. */
1662 209442 : if (targetm.have_speculation_safe_value (false))
1663 209442 : cpp_define (pfile, "__HAVE_SPECULATION_SAFE_VALUE");
1664 :
1665 : #ifdef DWARF2_UNWIND_INFO
1666 209442 : if (dwarf2out_do_cfi_asm ())
1667 209403 : cpp_define (pfile, "__GCC_HAVE_DWARF2_CFI_ASM");
1668 : #endif
1669 :
1670 : /* Make the choice of ObjC runtime visible to source code. */
1671 209442 : if (c_dialect_objc () && flag_next_runtime)
1672 0 : cpp_define (pfile, "__NEXT_RUNTIME__");
1673 :
1674 : /* Show the availability of some target pragmas. */
1675 209442 : cpp_define (pfile, "__PRAGMA_REDEFINE_EXTNAME");
1676 :
1677 : /* Make the choice of the stack protector runtime visible to source code.
1678 : The macro names and values here were chosen for compatibility with an
1679 : earlier implementation, i.e. ProPolice. */
1680 209442 : if (flag_stack_protect == SPCT_FLAG_EXPLICIT)
1681 7 : cpp_define (pfile, "__SSP_EXPLICIT__=4");
1682 209442 : if (flag_stack_protect == SPCT_FLAG_STRONG)
1683 184 : cpp_define (pfile, "__SSP_STRONG__=3");
1684 209442 : if (flag_stack_protect == SPCT_FLAG_ALL)
1685 40 : cpp_define (pfile, "__SSP_ALL__=2");
1686 209402 : else if (flag_stack_protect == SPCT_FLAG_DEFAULT)
1687 69 : cpp_define (pfile, "__SSP__=1");
1688 :
1689 209442 : if (flag_openacc)
1690 1671 : cpp_define (pfile, "_OPENACC=201711");
1691 :
1692 209442 : if (flag_openmp)
1693 6392 : cpp_define (pfile, "_OPENMP=202111");
1694 :
1695 418884 : for (i = 0; i < NUM_INT_N_ENTS; i ++)
1696 209442 : if (int_n_enabled_p[i])
1697 : {
1698 204070 : char buf[15+20];
1699 204070 : sprintf(buf, "__SIZEOF_INT%d__", int_n_data[i].bitsize);
1700 204070 : builtin_define_type_sizeof (buf,
1701 : int_n_trees[i].signed_type);
1702 : }
1703 209442 : builtin_define_type_sizeof ("__SIZEOF_WCHAR_T__", wchar_type_node);
1704 209442 : builtin_define_type_sizeof ("__SIZEOF_WINT_T__", wint_type_node);
1705 209442 : builtin_define_type_sizeof ("__SIZEOF_PTRDIFF_T__",
1706 : unsigned_ptrdiff_type_node);
1707 :
1708 : /* A straightforward target hook doesn't work, because of problems
1709 : linking that hook's body when part of non-C front ends. */
1710 : # define preprocessing_asm_p() (cpp_get_options (pfile)->lang == CLK_ASM)
1711 : # define preprocessing_trad_p() (cpp_get_options (pfile)->traditional)
1712 : # define builtin_define(TXT) cpp_define (pfile, TXT)
1713 : # define builtin_assert(TXT) cpp_assert (pfile, TXT)
1714 209442 : TARGET_CPU_CPP_BUILTINS ();
1715 209442 : TARGET_OS_CPP_BUILTINS ();
1716 209442 : TARGET_OBJFMT_CPP_BUILTINS ();
1717 :
1718 : /* Support the __declspec keyword by turning them into attributes.
1719 : Note that the current way we do this may result in a collision
1720 : with predefined attributes later on. This can be solved by using
1721 : one attribute, say __declspec__, and passing args to it. The
1722 : problem with that approach is that args are not accumulated: each
1723 : new appearance would clobber any existing args. */
1724 209442 : if (TARGET_DECLSPEC)
1725 : builtin_define ("__declspec(x)=__attribute__((x))");
1726 :
1727 : /* If decimal floating point is supported, tell the user if the
1728 : alternate format (BID) is used instead of the standard (DPD)
1729 : format. */
1730 209442 : if (ENABLE_DECIMAL_FLOAT && ENABLE_DECIMAL_BID_FORMAT)
1731 209442 : cpp_define (pfile, "__DECIMAL_BID_FORMAT__");
1732 : }
1733 :
1734 : /* Given NAME, return the command-line option that would make it be
1735 : a builtin define, or 0 if unrecognized. */
1736 :
1737 : diagnostics::option_id
1738 3701 : get_option_for_builtin_define (const char *name)
1739 : {
1740 3701 : if (!strcmp (name, "_OPENACC"))
1741 4 : return OPT_fopenacc;
1742 3697 : if (!strcmp (name, "_OPENMP"))
1743 4 : return OPT_fopenmp;
1744 3693 : return 0;
1745 : }
1746 :
1747 : /* Pass an object-like macro. If it doesn't lie in the user's
1748 : namespace, defines it unconditionally. Otherwise define a version
1749 : with two leading underscores, and another version with two leading
1750 : and trailing underscores, and define the original only if an ISO
1751 : standard was not nominated.
1752 :
1753 : e.g. passing "unix" defines "__unix", "__unix__" and possibly
1754 : "unix". Passing "_mips" defines "__mips", "__mips__" and possibly
1755 : "_mips". */
1756 : void
1757 424256 : builtin_define_std (const char *macro)
1758 : {
1759 424256 : size_t len = strlen (macro);
1760 424256 : char *buff = (char *) alloca (len + 5);
1761 424256 : char *p = buff + 2;
1762 424256 : char *q = p + len;
1763 :
1764 : /* prepend __ (or maybe just _) if in user's namespace. */
1765 424256 : memcpy (p, macro, len + 1);
1766 424256 : if (!( *p == '_' && (p[1] == '_' || ISUPPER (p[1]))))
1767 : {
1768 424256 : if (*p != '_')
1769 424256 : *--p = '_';
1770 424256 : if (p[1] != '_')
1771 424256 : *--p = '_';
1772 : }
1773 424256 : cpp_define (parse_in, p);
1774 :
1775 : /* If it was in user's namespace... */
1776 424256 : if (p != buff + 2)
1777 : {
1778 : /* Define the macro with leading and following __. */
1779 424256 : if (q[-1] != '_')
1780 424256 : *q++ = '_';
1781 424256 : if (q[-2] != '_')
1782 424256 : *q++ = '_';
1783 424256 : *q = '\0';
1784 424256 : cpp_define (parse_in, p);
1785 :
1786 : /* Finally, define the original macro if permitted. */
1787 424256 : if (!flag_iso)
1788 306884 : cpp_define (parse_in, macro);
1789 : }
1790 424256 : }
1791 :
1792 : /* Pass an object-like macro and a value to define it to. The third
1793 : parameter says whether or not to turn the value into a string
1794 : constant. */
1795 : void
1796 18837224 : builtin_define_with_value (const char *macro, const char *expansion, int is_str)
1797 : {
1798 18837224 : char *buf;
1799 18837224 : size_t mlen = strlen (macro);
1800 18837224 : size_t elen = strlen (expansion);
1801 18837224 : size_t extra = 2; /* space for an = and a NUL */
1802 :
1803 18837224 : if (is_str)
1804 : {
1805 420852 : char *quoted_expansion = (char *) alloca (elen * 4 + 1);
1806 420852 : const char *p;
1807 420852 : char *q;
1808 420852 : extra += 2; /* space for two quote marks */
1809 3158571 : for (p = expansion, q = quoted_expansion; *p; p++)
1810 : {
1811 2737719 : switch (*p)
1812 : {
1813 0 : case '\n':
1814 0 : *q++ = '\\';
1815 0 : *q++ = 'n';
1816 0 : break;
1817 :
1818 984 : case '\t':
1819 984 : *q++ = '\\';
1820 984 : *q++ = 't';
1821 984 : break;
1822 :
1823 0 : case '\\':
1824 0 : *q++ = '\\';
1825 0 : *q++ = '\\';
1826 0 : break;
1827 :
1828 0 : case '"':
1829 0 : *q++ = '\\';
1830 0 : *q++ = '"';
1831 0 : break;
1832 :
1833 2736735 : default:
1834 2736735 : if (ISPRINT ((unsigned char) *p))
1835 2736735 : *q++ = *p;
1836 : else
1837 : {
1838 0 : sprintf (q, "\\%03o", (unsigned char) *p);
1839 0 : q += 4;
1840 : }
1841 : }
1842 : }
1843 420852 : *q = '\0';
1844 420852 : expansion = quoted_expansion;
1845 420852 : elen = q - expansion;
1846 : }
1847 :
1848 18837224 : buf = (char *) alloca (mlen + elen + extra);
1849 18837224 : if (is_str)
1850 420852 : sprintf (buf, "%s=\"%s\"", macro, expansion);
1851 : else
1852 18416372 : sprintf (buf, "%s=%s", macro, expansion);
1853 :
1854 18837224 : cpp_define (parse_in, buf);
1855 18837224 : }
1856 :
1857 :
1858 : /* Pass an object-like macro and an integer value to define it to. */
1859 : void
1860 28072223 : builtin_define_with_int_value (const char *macro, HOST_WIDE_INT value)
1861 : {
1862 28072223 : char *buf;
1863 28072223 : size_t mlen = strlen (macro);
1864 28072223 : size_t vlen = 18;
1865 28072223 : size_t extra = 2; /* space for = and NUL. */
1866 :
1867 28072223 : buf = (char *) alloca (mlen + vlen + extra);
1868 28072223 : memcpy (buf, macro, mlen);
1869 28072223 : buf[mlen] = '=';
1870 28072223 : sprintf (buf + mlen + 1, HOST_WIDE_INT_PRINT_DEC, value);
1871 :
1872 28072223 : cpp_define (parse_in, buf);
1873 28072223 : }
1874 :
1875 : /* builtin_define_with_hex_fp_value is very expensive, so the following
1876 : array and function allows it to be done lazily when __DBL_MAX__
1877 : etc. is first used. */
1878 :
1879 : struct GTY(()) lazy_hex_fp_value_struct
1880 : {
1881 : const char *hex_str;
1882 : machine_mode mode;
1883 : int digits;
1884 : const char *fp_suffix;
1885 : };
1886 : /* Number of the expensive to compute macros we should evaluate lazily.
1887 : Each builtin_define_float_constants invocation calls
1888 : builtin_define_with_hex_fp_value 5 times and builtin_define_float_constants
1889 : is called for FLT, DBL, LDBL and up to NUM_FLOATN_NX_TYPES times for
1890 : FLTNN*. */
1891 : #define LAZY_HEX_FP_VALUES_CNT (5 * (3 + NUM_FLOATN_NX_TYPES))
1892 : static GTY(()) struct lazy_hex_fp_value_struct
1893 : lazy_hex_fp_values[LAZY_HEX_FP_VALUES_CNT];
1894 : static GTY(()) unsigned lazy_hex_fp_value_count;
1895 :
1896 : static void
1897 351715 : lazy_hex_fp_value (cpp_reader *, cpp_macro *macro, unsigned num)
1898 : {
1899 351715 : REAL_VALUE_TYPE real;
1900 351715 : char dec_str[64], buf1[256];
1901 :
1902 351715 : gcc_checking_assert (num < lazy_hex_fp_value_count);
1903 :
1904 351715 : real_from_string (&real, lazy_hex_fp_values[num].hex_str);
1905 351715 : real_to_decimal_for_mode (dec_str, &real, sizeof (dec_str),
1906 351715 : lazy_hex_fp_values[num].digits, 0,
1907 : lazy_hex_fp_values[num].mode);
1908 :
1909 351715 : size_t len
1910 351715 : = sprintf (buf1, "%s%s", dec_str, lazy_hex_fp_values[num].fp_suffix);
1911 351715 : gcc_assert (len < sizeof (buf1));
1912 466181 : for (unsigned idx = 0; idx < macro->count; idx++)
1913 466181 : if (macro->exp.tokens[idx].type == CPP_NUMBER)
1914 : {
1915 351715 : macro->exp.tokens[idx].val.str.len = len;
1916 351715 : macro->exp.tokens[idx].val.str.text
1917 351715 : = (const unsigned char *) ggc_strdup (buf1);
1918 351715 : return;
1919 : }
1920 :
1921 : /* We must have replaced a token. */
1922 0 : gcc_unreachable ();
1923 : }
1924 :
1925 : /* Pass an object-like macro a hexadecimal floating-point value. */
1926 : static void
1927 10472100 : builtin_define_with_hex_fp_value (const char *macro,
1928 : tree type, int digits,
1929 : const char *hex_str,
1930 : const char *fp_suffix,
1931 : const char *fp_cast)
1932 : {
1933 10472100 : REAL_VALUE_TYPE real;
1934 10472100 : char dec_str[64], buf[256], buf1[128], buf2[64];
1935 :
1936 : /* This is very expensive, so if possible expand them lazily. */
1937 10472100 : if (lazy_hex_fp_value_count < LAZY_HEX_FP_VALUES_CNT
1938 10472100 : && flag_dump_macros == 0
1939 10427300 : && flag_dump_go_spec == NULL
1940 10427100 : && !cpp_get_options (parse_in)->traditional)
1941 : {
1942 10280950 : if (lazy_hex_fp_value_count == 0)
1943 205619 : cpp_get_callbacks (parse_in)->user_lazy_macro = lazy_hex_fp_value;
1944 10280950 : sprintf (buf2, fp_cast, "1.1");
1945 10280950 : sprintf (buf1, "%s=%s", macro, buf2);
1946 10280950 : cpp_define (parse_in, buf1);
1947 10280950 : struct cpp_hashnode *node = C_CPP_HASHNODE (get_identifier (macro));
1948 10280950 : lazy_hex_fp_values[lazy_hex_fp_value_count].hex_str
1949 10280950 : = ggc_strdup (hex_str);
1950 10280950 : lazy_hex_fp_values[lazy_hex_fp_value_count].mode = TYPE_MODE (type);
1951 10280950 : lazy_hex_fp_values[lazy_hex_fp_value_count].digits = digits;
1952 10280950 : lazy_hex_fp_values[lazy_hex_fp_value_count].fp_suffix = fp_suffix;
1953 10280950 : cpp_define_lazily (parse_in, node, lazy_hex_fp_value_count++);
1954 10280950 : return;
1955 : }
1956 :
1957 : /* Hex values are really cool and convenient, except that they're
1958 : not supported in strict ISO C90 mode. First, the "p-" sequence
1959 : is not valid as part of a preprocessor number. Second, we get a
1960 : pedwarn from the preprocessor, which has no context, so we can't
1961 : suppress the warning with __extension__.
1962 :
1963 : So instead what we do is construct the number in hex (because
1964 : it's easy to get the exact correct value), parse it as a real,
1965 : then print it back out as decimal. */
1966 :
1967 191150 : real_from_string (&real, hex_str);
1968 191150 : real_to_decimal_for_mode (dec_str, &real, sizeof (dec_str), digits, 0,
1969 191150 : TYPE_MODE (type));
1970 :
1971 : /* Assemble the macro in the following fashion
1972 : macro = fp_cast [dec_str fp_suffix] */
1973 191150 : sprintf (buf2, "%s%s", dec_str, fp_suffix);
1974 191150 : sprintf (buf1, fp_cast, buf2);
1975 191150 : sprintf (buf, "%s=%s", macro, buf1);
1976 :
1977 191150 : cpp_define (parse_in, buf);
1978 : }
1979 :
1980 : /* Return a string constant for the suffix for a value of type TYPE
1981 : promoted according to the integer promotions. The type must be one
1982 : of the standard integer type nodes. */
1983 :
1984 : static const char *
1985 10053216 : type_suffix (tree type)
1986 : {
1987 10053216 : static const char *const suffixes[] = { "", "U", "L", "UL", "LL", "ULL" };
1988 10053216 : int unsigned_suffix;
1989 10053216 : int is_long;
1990 10053216 : int tp = TYPE_PRECISION (type);
1991 :
1992 10053216 : if (type == long_long_integer_type_node
1993 9810960 : || type == long_long_unsigned_type_node
1994 19831362 : || tp > TYPE_PRECISION (long_integer_type_node))
1995 : is_long = 2;
1996 9778146 : else if (type == long_integer_type_node
1997 7523505 : || type == long_unsigned_type_node
1998 15261921 : || tp > TYPE_PRECISION (integer_type_node))
1999 : is_long = 1;
2000 5483775 : else if (type == integer_type_node
2001 4210729 : || type == unsigned_type_node
2002 3351085 : || type == short_integer_type_node
2003 2513317 : || type == short_unsigned_type_node
2004 1884978 : || type == signed_char_type_node
2005 837768 : || type == unsigned_char_type_node
2006 : /* ??? "char" is not a signed or unsigned integer type and
2007 : so is not permitted for the standard typedefs, but some
2008 : systems use it anyway. */
2009 0 : || type == char_type_node)
2010 : is_long = 0;
2011 0 : else if (type == wchar_type_node)
2012 0 : return type_suffix (underlying_wchar_type_node);
2013 : else
2014 0 : gcc_unreachable ();
2015 :
2016 10053216 : unsigned_suffix = TYPE_UNSIGNED (type);
2017 10053216 : if (TYPE_PRECISION (type) < TYPE_PRECISION (integer_type_node))
2018 3351085 : unsigned_suffix = 0;
2019 10053216 : return suffixes[is_long * 2 + unsigned_suffix];
2020 : }
2021 :
2022 : /* Define MACRO as a <stdint.h> constant-suffix macro for TYPE. */
2023 : static void
2024 2094420 : builtin_define_constants (const char *macro, tree type)
2025 : {
2026 2094420 : const char *suffix;
2027 2094420 : char *buf;
2028 :
2029 2094420 : suffix = type_suffix (type);
2030 :
2031 2094420 : if (suffix[0] == 0)
2032 : {
2033 1047210 : buf = (char *) alloca (strlen (macro) + 6);
2034 1047210 : sprintf (buf, "%s(c)=c", macro);
2035 : }
2036 : else
2037 : {
2038 1047210 : buf = (char *) alloca (strlen (macro) + 9 + strlen (suffix) + 1);
2039 1047210 : sprintf (buf, "%s(c)=c ## %s", macro, suffix);
2040 : }
2041 :
2042 2094420 : cpp_define (parse_in, buf);
2043 2094420 : }
2044 :
2045 : /* Define MAX for TYPE based on the precision of the type. */
2046 :
2047 : static void
2048 7330470 : builtin_define_type_max (const char *macro, tree type)
2049 : {
2050 6283260 : builtin_define_type_minmax (NULL, macro, type);
2051 2722746 : }
2052 :
2053 : /* Given a value with COUNT LSBs set, fill BUF with a hexidecimal
2054 : representation of that value. For example, a COUNT of 10 would
2055 : return "0x3ff". */
2056 :
2057 : static void
2058 7958796 : print_bits_of_hex (char *buf, int bufsz, int count)
2059 : {
2060 7958796 : gcc_assert (bufsz > 3);
2061 7958796 : *buf++ = '0';
2062 7958796 : *buf++ = 'x';
2063 7958796 : bufsz -= 2;
2064 :
2065 7958796 : gcc_assert (count > 0);
2066 :
2067 7958796 : switch (count % 4) {
2068 : case 0:
2069 : break;
2070 0 : case 1:
2071 0 : *buf++ = '1';
2072 0 : bufsz --;
2073 0 : count -= 1;
2074 0 : break;
2075 0 : case 2:
2076 0 : *buf++ = '3';
2077 0 : bufsz --;
2078 0 : count -= 2;
2079 0 : break;
2080 4607711 : case 3:
2081 4607711 : *buf++ = '7';
2082 4607711 : bufsz --;
2083 4607711 : count -= 3;
2084 4607711 : break;
2085 : }
2086 83801877 : while (count >= 4)
2087 : {
2088 75843081 : gcc_assert (bufsz > 1);
2089 75843081 : *buf++ = 'f';
2090 75843081 : bufsz --;
2091 75843081 : count -= 4;
2092 : }
2093 7958796 : gcc_assert (bufsz > 0);
2094 7958796 : *buf++ = 0;
2095 7958796 : }
2096 :
2097 : /* Define MIN_MACRO (if not NULL) and MAX_MACRO for TYPE based on the
2098 : precision of the type. */
2099 :
2100 : static void
2101 7958796 : builtin_define_type_minmax (const char *min_macro, const char *max_macro,
2102 : tree type)
2103 : {
2104 : #define PBOH_SZ (MAX_BITSIZE_MODE_ANY_INT/4+4)
2105 7958796 : char value[PBOH_SZ];
2106 :
2107 7958796 : const char *suffix;
2108 7958796 : char *buf;
2109 7958796 : int bits;
2110 :
2111 7958796 : bits = TYPE_PRECISION (type) + (TYPE_UNSIGNED (type) ? 0 : -1);
2112 :
2113 7958796 : print_bits_of_hex (value, PBOH_SZ, bits);
2114 :
2115 7958796 : suffix = type_suffix (type);
2116 :
2117 7958796 : buf = (char *) alloca (strlen (max_macro) + 1 + strlen (value)
2118 : + strlen (suffix) + 1);
2119 7958796 : sprintf (buf, "%s=%s%s", max_macro, value, suffix);
2120 :
2121 7958796 : cpp_define (parse_in, buf);
2122 :
2123 7958796 : if (min_macro)
2124 : {
2125 628326 : if (TYPE_UNSIGNED (type))
2126 : {
2127 209455 : buf = (char *) alloca (strlen (min_macro) + 2 + strlen (suffix) + 1);
2128 209455 : sprintf (buf, "%s=0%s", min_macro, suffix);
2129 : }
2130 : else
2131 : {
2132 418871 : buf = (char *) alloca (strlen (min_macro) + 3
2133 : + strlen (max_macro) + 6);
2134 418871 : sprintf (buf, "%s=(-%s - 1)", min_macro, max_macro);
2135 : }
2136 628326 : cpp_define (parse_in, buf);
2137 : }
2138 7958796 : }
2139 :
2140 : /* Define WIDTH_MACRO for the width of TYPE. If TYPE2 is not NULL,
2141 : both types must have the same width. */
2142 :
2143 : static void
2144 4188840 : builtin_define_type_width (const char *width_macro, tree type, tree type2)
2145 : {
2146 4188840 : if (type2 != NULL_TREE)
2147 3141630 : gcc_assert (TYPE_PRECISION (type) == TYPE_PRECISION (type2));
2148 4188840 : builtin_define_with_int_value (width_macro, TYPE_PRECISION (type));
2149 4188840 : }
2150 :
2151 : #include "gt-c-family-c-cppbuiltin.h"
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