1 /* Subroutines used for macro/preprocessor support on the ia-32.
2 Copyright (C) 2008, 2009
3 Free Software Foundation, Inc.
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3, or (at your option)
12 GCC is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING3. If not see
19 <http://www.gnu.org/licenses/>. */
23 #include "coretypes.h"
32 #include "target-def.h"
36 static bool ix86_pragma_target_parse (tree, tree);
37 static void ix86_target_macros_internal
38 (int, enum processor_type, enum processor_type, enum fpmath_unit,
39 void (*def_or_undef) (cpp_reader *, const char *));
42 /* Internal function to either define or undef the appropriate system
45 ix86_target_macros_internal (int isa_flag,
46 enum processor_type arch,
47 enum processor_type tune,
48 enum fpmath_unit fpmath,
49 void (*def_or_undef) (cpp_reader *,
52 /* For some of the k6/pentium varients there weren't seperate ISA bits to
53 identify which tune/arch flag was passed, so figure it out here. */
54 size_t arch_len = strlen (ix86_arch_string);
55 size_t tune_len = strlen (ix86_tune_string);
56 int last_arch_char = ix86_arch_string[arch_len - 1];
57 int last_tune_char = ix86_tune_string[tune_len - 1];
59 /* Built-ins based on -march=. */
65 def_or_undef (parse_in, "__i486");
66 def_or_undef (parse_in, "__i486__");
68 case PROCESSOR_PENTIUM:
69 def_or_undef (parse_in, "__i586");
70 def_or_undef (parse_in, "__i586__");
71 def_or_undef (parse_in, "__pentium");
72 def_or_undef (parse_in, "__pentium__");
73 if (isa_flag & OPTION_MASK_ISA_MMX)
74 def_or_undef (parse_in, "__pentium_mmx__");
76 case PROCESSOR_PENTIUMPRO:
77 def_or_undef (parse_in, "__i686");
78 def_or_undef (parse_in, "__i686__");
79 def_or_undef (parse_in, "__pentiumpro");
80 def_or_undef (parse_in, "__pentiumpro__");
83 def_or_undef (parse_in, "__geode");
84 def_or_undef (parse_in, "__geode__");
87 def_or_undef (parse_in, "__k6");
88 def_or_undef (parse_in, "__k6__");
89 if (last_arch_char == '2')
90 def_or_undef (parse_in, "__k6_2__");
91 else if (last_arch_char == '3')
92 def_or_undef (parse_in, "__k6_3__");
93 else if (isa_flag & OPTION_MASK_ISA_3DNOW)
94 def_or_undef (parse_in, "__k6_3__");
96 case PROCESSOR_ATHLON:
97 def_or_undef (parse_in, "__athlon");
98 def_or_undef (parse_in, "__athlon__");
99 if (isa_flag & OPTION_MASK_ISA_SSE)
100 def_or_undef (parse_in, "__athlon_sse__");
103 def_or_undef (parse_in, "__k8");
104 def_or_undef (parse_in, "__k8__");
106 case PROCESSOR_AMDFAM10:
107 def_or_undef (parse_in, "__amdfam10");
108 def_or_undef (parse_in, "__amdfam10__");
110 case PROCESSOR_BDVER1:
111 def_or_undef (parse_in, "__bdver1");
112 def_or_undef (parse_in, "__bdver1__");
114 case PROCESSOR_PENTIUM4:
115 def_or_undef (parse_in, "__pentium4");
116 def_or_undef (parse_in, "__pentium4__");
118 case PROCESSOR_NOCONA:
119 def_or_undef (parse_in, "__nocona");
120 def_or_undef (parse_in, "__nocona__");
122 case PROCESSOR_CORE2:
123 def_or_undef (parse_in, "__core2");
124 def_or_undef (parse_in, "__core2__");
127 def_or_undef (parse_in, "__atom");
128 def_or_undef (parse_in, "__atom__");
130 /* use PROCESSOR_max to not set/unset the arch macro. */
133 case PROCESSOR_GENERIC32:
134 case PROCESSOR_GENERIC64:
138 /* Built-ins based on -mtune=. */
142 def_or_undef (parse_in, "__tune_i386__");
145 def_or_undef (parse_in, "__tune_i486__");
147 case PROCESSOR_PENTIUM:
148 def_or_undef (parse_in, "__tune_i586__");
149 def_or_undef (parse_in, "__tune_pentium__");
150 if (last_tune_char == 'x')
151 def_or_undef (parse_in, "__tune_pentium_mmx__");
153 case PROCESSOR_PENTIUMPRO:
154 def_or_undef (parse_in, "__tune_i686__");
155 def_or_undef (parse_in, "__tune_pentiumpro__");
156 switch (last_tune_char)
159 def_or_undef (parse_in, "__tune_pentium3__");
162 def_or_undef (parse_in, "__tune_pentium2__");
166 case PROCESSOR_GEODE:
167 def_or_undef (parse_in, "__tune_geode__");
170 def_or_undef (parse_in, "__tune_k6__");
171 if (last_tune_char == '2')
172 def_or_undef (parse_in, "__tune_k6_2__");
173 else if (last_tune_char == '3')
174 def_or_undef (parse_in, "__tune_k6_3__");
175 else if (isa_flag & OPTION_MASK_ISA_3DNOW)
176 def_or_undef (parse_in, "__tune_k6_3__");
178 case PROCESSOR_ATHLON:
179 def_or_undef (parse_in, "__tune_athlon__");
180 if (isa_flag & OPTION_MASK_ISA_SSE)
181 def_or_undef (parse_in, "__tune_athlon_sse__");
184 def_or_undef (parse_in, "__tune_k8__");
186 case PROCESSOR_AMDFAM10:
187 def_or_undef (parse_in, "__tune_amdfam10__");
189 case PROCESSOR_BDVER1:
190 def_or_undef (parse_in, "__tune_bdver1__");
192 case PROCESSOR_PENTIUM4:
193 def_or_undef (parse_in, "__tune_pentium4__");
195 case PROCESSOR_NOCONA:
196 def_or_undef (parse_in, "__tune_nocona__");
198 case PROCESSOR_CORE2:
199 def_or_undef (parse_in, "__tune_core2__");
202 def_or_undef (parse_in, "__tune_atom__");
204 case PROCESSOR_GENERIC32:
205 case PROCESSOR_GENERIC64:
207 /* use PROCESSOR_max to not set/unset the tune macro. */
212 if (isa_flag & OPTION_MASK_ISA_MMX)
213 def_or_undef (parse_in, "__MMX__");
214 if (isa_flag & OPTION_MASK_ISA_3DNOW)
215 def_or_undef (parse_in, "__3dNOW__");
216 if (isa_flag & OPTION_MASK_ISA_3DNOW_A)
217 def_or_undef (parse_in, "__3dNOW_A__");
218 if (isa_flag & OPTION_MASK_ISA_SSE)
219 def_or_undef (parse_in, "__SSE__");
220 if (isa_flag & OPTION_MASK_ISA_SSE2)
221 def_or_undef (parse_in, "__SSE2__");
222 if (isa_flag & OPTION_MASK_ISA_SSE3)
223 def_or_undef (parse_in, "__SSE3__");
224 if (isa_flag & OPTION_MASK_ISA_SSSE3)
225 def_or_undef (parse_in, "__SSSE3__");
226 if (isa_flag & OPTION_MASK_ISA_SSE4_1)
227 def_or_undef (parse_in, "__SSE4_1__");
228 if (isa_flag & OPTION_MASK_ISA_SSE4_2)
229 def_or_undef (parse_in, "__SSE4_2__");
230 if (isa_flag & OPTION_MASK_ISA_AES)
231 def_or_undef (parse_in, "__AES__");
232 if (isa_flag & OPTION_MASK_ISA_PCLMUL)
233 def_or_undef (parse_in, "__PCLMUL__");
234 if (isa_flag & OPTION_MASK_ISA_AVX)
235 def_or_undef (parse_in, "__AVX__");
236 if (isa_flag & OPTION_MASK_ISA_FMA)
237 def_or_undef (parse_in, "__FMA__");
238 if (isa_flag & OPTION_MASK_ISA_SSE4A)
239 def_or_undef (parse_in, "__SSE4A__");
240 if (isa_flag & OPTION_MASK_ISA_FMA4)
241 def_or_undef (parse_in, "__FMA4__");
242 if (isa_flag & OPTION_MASK_ISA_XOP)
243 def_or_undef (parse_in, "__XOP__");
244 if (isa_flag & OPTION_MASK_ISA_LWP)
245 def_or_undef (parse_in, "__LWP__");
246 if (isa_flag & OPTION_MASK_ISA_ABM)
247 def_or_undef (parse_in, "__ABM__");
248 if (isa_flag & OPTION_MASK_ISA_POPCNT)
249 def_or_undef (parse_in, "__POPCNT__");
250 if ((fpmath & FPMATH_SSE) && (isa_flag & OPTION_MASK_ISA_SSE))
251 def_or_undef (parse_in, "__SSE_MATH__");
252 if ((fpmath & FPMATH_SSE) && (isa_flag & OPTION_MASK_ISA_SSE2))
253 def_or_undef (parse_in, "__SSE2_MATH__");
257 /* Hook to validate the current #pragma GCC target and set the state, and
258 update the macros based on what was changed. If ARGS is NULL, then
259 POP_TARGET is used to reset the options. */
262 ix86_pragma_target_parse (tree args, tree pop_target)
264 tree prev_tree = build_target_option_node ();
266 struct cl_target_option *prev_opt;
267 struct cl_target_option *cur_opt;
271 enum processor_type prev_arch;
272 enum processor_type prev_tune;
273 enum processor_type cur_arch;
274 enum processor_type cur_tune;
278 cur_tree = ((pop_target)
280 : target_option_default_node);
281 cl_target_option_restore (TREE_TARGET_OPTION (cur_tree));
285 cur_tree = ix86_valid_target_attribute_tree (args);
290 target_option_current_node = cur_tree;
292 /* Figure out the previous/current isa, arch, tune and the differences. */
293 prev_opt = TREE_TARGET_OPTION (prev_tree);
294 cur_opt = TREE_TARGET_OPTION (cur_tree);
295 prev_isa = prev_opt->ix86_isa_flags;
296 cur_isa = cur_opt->ix86_isa_flags;
297 diff_isa = (prev_isa ^ cur_isa);
298 prev_arch = (enum processor_type) prev_opt->arch;
299 prev_tune = (enum processor_type) prev_opt->tune;
300 cur_arch = (enum processor_type) cur_opt->arch;
301 cur_tune = (enum processor_type) cur_opt->tune;
303 /* If the same processor is used for both previous and current options, don't
304 change the macros. */
305 if (cur_arch == prev_arch)
306 cur_arch = prev_arch = PROCESSOR_max;
308 if (cur_tune == prev_tune)
309 cur_tune = prev_tune = PROCESSOR_max;
311 /* Undef all of the macros for that are no longer current. */
312 ix86_target_macros_internal (prev_isa & diff_isa,
315 (enum fpmath_unit) prev_opt->fpmath,
318 /* Define all of the macros for new options that were just turned on. */
319 ix86_target_macros_internal (cur_isa & diff_isa,
322 (enum fpmath_unit) cur_opt->fpmath,
328 /* Function to tell the preprocessor about the defines for the current target. */
331 ix86_target_macros (void)
333 /* 32/64-bit won't change with target specific options, so do the assert and
334 builtin_define_std calls here. */
337 cpp_assert (parse_in, "cpu=x86_64");
338 cpp_assert (parse_in, "machine=x86_64");
339 cpp_define (parse_in, "__amd64");
340 cpp_define (parse_in, "__amd64__");
341 cpp_define (parse_in, "__x86_64");
342 cpp_define (parse_in, "__x86_64__");
346 cpp_assert (parse_in, "cpu=i386");
347 cpp_assert (parse_in, "machine=i386");
348 builtin_define_std ("i386");
351 ix86_target_macros_internal (ix86_isa_flags,
359 /* Register target pragmas. We need to add the hook for parsing #pragma GCC
360 option here rather than in i386.c since it will pull in various preprocessor
361 functions, and those are not present in languages like fortran without a
365 ix86_register_pragmas (void)
367 /* Update pragma hook to allow parsing #pragma GCC target. */
368 targetm.target_option.pragma_parse = ix86_pragma_target_parse;
370 #ifdef REGISTER_SUBTARGET_PRAGMAS
371 REGISTER_SUBTARGET_PRAGMAS ();