+++ /dev/null
-/* Copyright (C) 1988-2020 Free Software Foundation, Inc.
-
-This file is part of GCC.
-
-GCC is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 3, or (at your option)
-any later version.
-
-GCC is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GCC; see the file COPYING3. If not see
-<http://www.gnu.org/licenses/>. */
-
-#define IN_TARGET_CODE 1
-
-#include "config.h"
-#include "system.h"
-#include "coretypes.h"
-#include "backend.h"
-#include "rtl.h"
-#include "tree.h"
-#include "memmodel.h"
-#include "gimple.h"
-#include "cfghooks.h"
-#include "cfgloop.h"
-#include "df.h"
-#include "tm_p.h"
-#include "stringpool.h"
-#include "expmed.h"
-#include "optabs.h"
-#include "regs.h"
-#include "emit-rtl.h"
-#include "recog.h"
-#include "cgraph.h"
-#include "diagnostic.h"
-#include "cfgbuild.h"
-#include "alias.h"
-#include "fold-const.h"
-#include "attribs.h"
-#include "calls.h"
-#include "stor-layout.h"
-#include "varasm.h"
-#include "output.h"
-#include "insn-attr.h"
-#include "flags.h"
-#include "except.h"
-#include "explow.h"
-#include "expr.h"
-#include "cfgrtl.h"
-#include "common/common-target.h"
-#include "langhooks.h"
-#include "reload.h"
-#include "gimplify.h"
-#include "dwarf2.h"
-#include "tm-constrs.h"
-#include "cselib.h"
-#include "sched-int.h"
-#include "opts.h"
-#include "tree-pass.h"
-#include "context.h"
-#include "pass_manager.h"
-#include "target-globals.h"
-#include "gimple-iterator.h"
-#include "tree-vectorizer.h"
-#include "shrink-wrap.h"
-#include "builtins.h"
-#include "rtl-iter.h"
-#include "tree-iterator.h"
-#include "dbgcnt.h"
-#include "case-cfn-macros.h"
-#include "dojump.h"
-#include "fold-const-call.h"
-#include "tree-vrp.h"
-#include "tree-ssanames.h"
-#include "selftest.h"
-#include "selftest-rtl.h"
-#include "print-rtl.h"
-#include "intl.h"
-#include "ifcvt.h"
-#include "symbol-summary.h"
-#include "ipa-prop.h"
-#include "ipa-fnsummary.h"
-#include "wide-int-bitmask.h"
-#include "tree-vector-builder.h"
-#include "debug.h"
-#include "dwarf2out.h"
-#include "i386-options.h"
-
-#include "x86-tune-costs.h"
-
-#ifndef SUBTARGET32_DEFAULT_CPU
-#define SUBTARGET32_DEFAULT_CPU "i386"
-#endif
-
-/* Processor feature/optimization bitmasks. */
-#define m_386 (HOST_WIDE_INT_1U<<PROCESSOR_I386)
-#define m_486 (HOST_WIDE_INT_1U<<PROCESSOR_I486)
-#define m_PENT (HOST_WIDE_INT_1U<<PROCESSOR_PENTIUM)
-#define m_LAKEMONT (HOST_WIDE_INT_1U<<PROCESSOR_LAKEMONT)
-#define m_PPRO (HOST_WIDE_INT_1U<<PROCESSOR_PENTIUMPRO)
-#define m_PENT4 (HOST_WIDE_INT_1U<<PROCESSOR_PENTIUM4)
-#define m_NOCONA (HOST_WIDE_INT_1U<<PROCESSOR_NOCONA)
-#define m_P4_NOCONA (m_PENT4 | m_NOCONA)
-#define m_CORE2 (HOST_WIDE_INT_1U<<PROCESSOR_CORE2)
-#define m_NEHALEM (HOST_WIDE_INT_1U<<PROCESSOR_NEHALEM)
-#define m_SANDYBRIDGE (HOST_WIDE_INT_1U<<PROCESSOR_SANDYBRIDGE)
-#define m_HASWELL (HOST_WIDE_INT_1U<<PROCESSOR_HASWELL)
-#define m_BONNELL (HOST_WIDE_INT_1U<<PROCESSOR_BONNELL)
-#define m_SILVERMONT (HOST_WIDE_INT_1U<<PROCESSOR_SILVERMONT)
-#define m_KNL (HOST_WIDE_INT_1U<<PROCESSOR_KNL)
-#define m_KNM (HOST_WIDE_INT_1U<<PROCESSOR_KNM)
-#define m_SKYLAKE (HOST_WIDE_INT_1U<<PROCESSOR_SKYLAKE)
-#define m_SKYLAKE_AVX512 (HOST_WIDE_INT_1U<<PROCESSOR_SKYLAKE_AVX512)
-#define m_CANNONLAKE (HOST_WIDE_INT_1U<<PROCESSOR_CANNONLAKE)
-#define m_ICELAKE_CLIENT (HOST_WIDE_INT_1U<<PROCESSOR_ICELAKE_CLIENT)
-#define m_ICELAKE_SERVER (HOST_WIDE_INT_1U<<PROCESSOR_ICELAKE_SERVER)
-#define m_CASCADELAKE (HOST_WIDE_INT_1U<<PROCESSOR_CASCADELAKE)
-#define m_TIGERLAKE (HOST_WIDE_INT_1U<<PROCESSOR_TIGERLAKE)
-#define m_COOPERLAKE (HOST_WIDE_INT_1U<<PROCESSOR_COOPERLAKE)
-#define m_CORE_AVX512 (m_SKYLAKE_AVX512 | m_CANNONLAKE \
- | m_ICELAKE_CLIENT | m_ICELAKE_SERVER | m_CASCADELAKE \
- | m_TIGERLAKE | m_COOPERLAKE)
-#define m_CORE_AVX2 (m_HASWELL | m_SKYLAKE | m_CORE_AVX512)
-#define m_CORE_ALL (m_CORE2 | m_NEHALEM | m_SANDYBRIDGE | m_CORE_AVX2)
-#define m_GOLDMONT (HOST_WIDE_INT_1U<<PROCESSOR_GOLDMONT)
-#define m_GOLDMONT_PLUS (HOST_WIDE_INT_1U<<PROCESSOR_GOLDMONT_PLUS)
-#define m_TREMONT (HOST_WIDE_INT_1U<<PROCESSOR_TREMONT)
-#define m_INTEL (HOST_WIDE_INT_1U<<PROCESSOR_INTEL)
-
-#define m_GEODE (HOST_WIDE_INT_1U<<PROCESSOR_GEODE)
-#define m_K6 (HOST_WIDE_INT_1U<<PROCESSOR_K6)
-#define m_K6_GEODE (m_K6 | m_GEODE)
-#define m_K8 (HOST_WIDE_INT_1U<<PROCESSOR_K8)
-#define m_ATHLON (HOST_WIDE_INT_1U<<PROCESSOR_ATHLON)
-#define m_ATHLON_K8 (m_K8 | m_ATHLON)
-#define m_AMDFAM10 (HOST_WIDE_INT_1U<<PROCESSOR_AMDFAM10)
-#define m_BDVER1 (HOST_WIDE_INT_1U<<PROCESSOR_BDVER1)
-#define m_BDVER2 (HOST_WIDE_INT_1U<<PROCESSOR_BDVER2)
-#define m_BDVER3 (HOST_WIDE_INT_1U<<PROCESSOR_BDVER3)
-#define m_BDVER4 (HOST_WIDE_INT_1U<<PROCESSOR_BDVER4)
-#define m_ZNVER1 (HOST_WIDE_INT_1U<<PROCESSOR_ZNVER1)
-#define m_ZNVER2 (HOST_WIDE_INT_1U<<PROCESSOR_ZNVER2)
-#define m_BTVER1 (HOST_WIDE_INT_1U<<PROCESSOR_BTVER1)
-#define m_BTVER2 (HOST_WIDE_INT_1U<<PROCESSOR_BTVER2)
-#define m_BDVER (m_BDVER1 | m_BDVER2 | m_BDVER3 | m_BDVER4)
-#define m_BTVER (m_BTVER1 | m_BTVER2)
-#define m_ZNVER (m_ZNVER1 | m_ZNVER2)
-#define m_AMD_MULTIPLE (m_ATHLON_K8 | m_AMDFAM10 | m_BDVER | m_BTVER \
- | m_ZNVER)
-
-#define m_GENERIC (HOST_WIDE_INT_1U<<PROCESSOR_GENERIC)
-
-const char* ix86_tune_feature_names[X86_TUNE_LAST] = {
-#undef DEF_TUNE
-#define DEF_TUNE(tune, name, selector) name,
-#include "x86-tune.def"
-#undef DEF_TUNE
-};
-
-/* Feature tests against the various tunings. */
-unsigned char ix86_tune_features[X86_TUNE_LAST];
-
-/* Feature tests against the various tunings used to create ix86_tune_features
- based on the processor mask. */
-static unsigned HOST_WIDE_INT initial_ix86_tune_features[X86_TUNE_LAST] = {
-#undef DEF_TUNE
-#define DEF_TUNE(tune, name, selector) selector,
-#include "x86-tune.def"
-#undef DEF_TUNE
-};
-
-/* Feature tests against the various architecture variations. */
-unsigned char ix86_arch_features[X86_ARCH_LAST];
-
-struct ix86_target_opts
-{
- const char *option; /* option string */
- HOST_WIDE_INT mask; /* isa mask options */
-};
-
-/* This table is ordered so that options like -msse4.2 that imply other
- ISAs come first. Target string will be displayed in the same order. */
-static struct ix86_target_opts isa2_opts[] =
-{
- { "-mcx16", OPTION_MASK_ISA2_CX16 },
- { "-mvaes", OPTION_MASK_ISA2_VAES },
- { "-mrdpid", OPTION_MASK_ISA2_RDPID },
- { "-mpconfig", OPTION_MASK_ISA2_PCONFIG },
- { "-mwbnoinvd", OPTION_MASK_ISA2_WBNOINVD },
- { "-mavx512vp2intersect", OPTION_MASK_ISA2_AVX512VP2INTERSECT },
- { "-msgx", OPTION_MASK_ISA2_SGX },
- { "-mavx5124vnniw", OPTION_MASK_ISA2_AVX5124VNNIW },
- { "-mavx5124fmaps", OPTION_MASK_ISA2_AVX5124FMAPS },
- { "-mhle", OPTION_MASK_ISA2_HLE },
- { "-mmovbe", OPTION_MASK_ISA2_MOVBE },
- { "-mclzero", OPTION_MASK_ISA2_CLZERO },
- { "-mmwaitx", OPTION_MASK_ISA2_MWAITX },
- { "-mmovdir64b", OPTION_MASK_ISA2_MOVDIR64B },
- { "-mwaitpkg", OPTION_MASK_ISA2_WAITPKG },
- { "-mcldemote", OPTION_MASK_ISA2_CLDEMOTE },
- { "-mptwrite", OPTION_MASK_ISA2_PTWRITE },
- { "-mavx512bf16", OPTION_MASK_ISA2_AVX512BF16 },
- { "-menqcmd", OPTION_MASK_ISA2_ENQCMD },
- { "-mserialize", OPTION_MASK_ISA2_SERIALIZE },
- { "-mtsxldtrk", OPTION_MASK_ISA2_TSXLDTRK }
-};
-static struct ix86_target_opts isa_opts[] =
-{
- { "-mavx512vpopcntdq", OPTION_MASK_ISA_AVX512VPOPCNTDQ },
- { "-mavx512bitalg", OPTION_MASK_ISA_AVX512BITALG },
- { "-mvpclmulqdq", OPTION_MASK_ISA_VPCLMULQDQ },
- { "-mgfni", OPTION_MASK_ISA_GFNI },
- { "-mavx512vnni", OPTION_MASK_ISA_AVX512VNNI },
- { "-mavx512vbmi2", OPTION_MASK_ISA_AVX512VBMI2 },
- { "-mavx512vbmi", OPTION_MASK_ISA_AVX512VBMI },
- { "-mavx512ifma", OPTION_MASK_ISA_AVX512IFMA },
- { "-mavx512vl", OPTION_MASK_ISA_AVX512VL },
- { "-mavx512bw", OPTION_MASK_ISA_AVX512BW },
- { "-mavx512dq", OPTION_MASK_ISA_AVX512DQ },
- { "-mavx512er", OPTION_MASK_ISA_AVX512ER },
- { "-mavx512pf", OPTION_MASK_ISA_AVX512PF },
- { "-mavx512cd", OPTION_MASK_ISA_AVX512CD },
- { "-mavx512f", OPTION_MASK_ISA_AVX512F },
- { "-mavx2", OPTION_MASK_ISA_AVX2 },
- { "-mfma", OPTION_MASK_ISA_FMA },
- { "-mxop", OPTION_MASK_ISA_XOP },
- { "-mfma4", OPTION_MASK_ISA_FMA4 },
- { "-mf16c", OPTION_MASK_ISA_F16C },
- { "-mavx", OPTION_MASK_ISA_AVX },
-/*{ "-msse4" OPTION_MASK_ISA_SSE4 }, */
- { "-msse4.2", OPTION_MASK_ISA_SSE4_2 },
- { "-msse4.1", OPTION_MASK_ISA_SSE4_1 },
- { "-msse4a", OPTION_MASK_ISA_SSE4A },
- { "-mssse3", OPTION_MASK_ISA_SSSE3 },
- { "-msse3", OPTION_MASK_ISA_SSE3 },
- { "-maes", OPTION_MASK_ISA_AES },
- { "-msha", OPTION_MASK_ISA_SHA },
- { "-mpclmul", OPTION_MASK_ISA_PCLMUL },
- { "-msse2", OPTION_MASK_ISA_SSE2 },
- { "-msse", OPTION_MASK_ISA_SSE },
- { "-m3dnowa", OPTION_MASK_ISA_3DNOW_A },
- { "-m3dnow", OPTION_MASK_ISA_3DNOW },
- { "-mmmx", OPTION_MASK_ISA_MMX },
- { "-mrtm", OPTION_MASK_ISA_RTM },
- { "-mprfchw", OPTION_MASK_ISA_PRFCHW },
- { "-mrdseed", OPTION_MASK_ISA_RDSEED },
- { "-madx", OPTION_MASK_ISA_ADX },
- { "-mprefetchwt1", OPTION_MASK_ISA_PREFETCHWT1 },
- { "-mclflushopt", OPTION_MASK_ISA_CLFLUSHOPT },
- { "-mxsaves", OPTION_MASK_ISA_XSAVES },
- { "-mxsavec", OPTION_MASK_ISA_XSAVEC },
- { "-mxsaveopt", OPTION_MASK_ISA_XSAVEOPT },
- { "-mxsave", OPTION_MASK_ISA_XSAVE },
- { "-mabm", OPTION_MASK_ISA_ABM },
- { "-mbmi", OPTION_MASK_ISA_BMI },
- { "-mbmi2", OPTION_MASK_ISA_BMI2 },
- { "-mlzcnt", OPTION_MASK_ISA_LZCNT },
- { "-mtbm", OPTION_MASK_ISA_TBM },
- { "-mpopcnt", OPTION_MASK_ISA_POPCNT },
- { "-msahf", OPTION_MASK_ISA_SAHF },
- { "-mcrc32", OPTION_MASK_ISA_CRC32 },
- { "-mfsgsbase", OPTION_MASK_ISA_FSGSBASE },
- { "-mrdrnd", OPTION_MASK_ISA_RDRND },
- { "-mpku", OPTION_MASK_ISA_PKU },
- { "-mlwp", OPTION_MASK_ISA_LWP },
- { "-mfxsr", OPTION_MASK_ISA_FXSR },
- { "-mclwb", OPTION_MASK_ISA_CLWB },
- { "-mshstk", OPTION_MASK_ISA_SHSTK },
- { "-mmovdiri", OPTION_MASK_ISA_MOVDIRI }
-};
-
-/* Return 1 if TRAIT NAME is present in the OpenMP context's
- device trait set, return 0 if not present in any OpenMP context in the
- whole translation unit, or -1 if not present in the current OpenMP context
- but might be present in another OpenMP context in the same TU. */
-
-int
-ix86_omp_device_kind_arch_isa (enum omp_device_kind_arch_isa trait,
- const char *name)
-{
- switch (trait)
- {
- case omp_device_kind:
- return strcmp (name, "cpu") == 0;
- case omp_device_arch:
- if (strcmp (name, "x86") == 0)
- return 1;
- if (TARGET_64BIT)
- {
- if (TARGET_X32)
- return strcmp (name, "x32") == 0;
- else
- return strcmp (name, "x86_64") == 0;
- }
- if (strcmp (name, "ia32") == 0 || strcmp (name, "i386") == 0)
- return 1;
- if (strcmp (name, "i486") == 0)
- return ix86_arch != PROCESSOR_I386 ? 1 : -1;
- if (strcmp (name, "i586") == 0)
- return (ix86_arch != PROCESSOR_I386
- && ix86_arch != PROCESSOR_I486) ? 1 : -1;
- if (strcmp (name, "i686") == 0)
- return (ix86_arch != PROCESSOR_I386
- && ix86_arch != PROCESSOR_I486
- && ix86_arch != PROCESSOR_LAKEMONT
- && ix86_arch != PROCESSOR_PENTIUM) ? 1 : -1;
- return 0;
- case omp_device_isa:
- for (int i = 0; i < 2; i++)
- {
- struct ix86_target_opts *opts = i ? isa2_opts : isa_opts;
- size_t nopts = i ? ARRAY_SIZE (isa2_opts) : ARRAY_SIZE (isa_opts);
- HOST_WIDE_INT mask = i ? ix86_isa_flags2 : ix86_isa_flags;
- for (size_t n = 0; n < nopts; n++)
- {
- /* Handle sse4 as an alias to sse4.2. */
- if (opts[n].mask == OPTION_MASK_ISA_SSE4_2)
- {
- if (strcmp (name, "sse4") == 0)
- return (mask & opts[n].mask) != 0 ? 1 : -1;
- }
- if (strcmp (name, opts[n].option + 2) == 0)
- return (mask & opts[n].mask) != 0 ? 1 : -1;
- }
- }
- return 0;
- default:
- gcc_unreachable ();
- }
-}
-
-/* Return a string that documents the current -m options. The caller is
- responsible for freeing the string. */
-
-char *
-ix86_target_string (HOST_WIDE_INT isa, HOST_WIDE_INT isa2,
- int flags, int flags2,
- const char *arch, const char *tune,
- enum fpmath_unit fpmath,
- enum prefer_vector_width pvw,
- bool add_nl_p, bool add_abi_p)
-{
- /* Flag options. */
- static struct ix86_target_opts flag_opts[] =
- {
- { "-m128bit-long-double", MASK_128BIT_LONG_DOUBLE },
- { "-mlong-double-128", MASK_LONG_DOUBLE_128 },
- { "-mlong-double-64", MASK_LONG_DOUBLE_64 },
- { "-m80387", MASK_80387 },
- { "-maccumulate-outgoing-args", MASK_ACCUMULATE_OUTGOING_ARGS },
- { "-malign-double", MASK_ALIGN_DOUBLE },
- { "-mcld", MASK_CLD },
- { "-mfp-ret-in-387", MASK_FLOAT_RETURNS },
- { "-mieee-fp", MASK_IEEE_FP },
- { "-minline-all-stringops", MASK_INLINE_ALL_STRINGOPS },
- { "-minline-stringops-dynamically", MASK_INLINE_STRINGOPS_DYNAMICALLY },
- { "-mms-bitfields", MASK_MS_BITFIELD_LAYOUT },
- { "-mno-align-stringops", MASK_NO_ALIGN_STRINGOPS },
- { "-mno-fancy-math-387", MASK_NO_FANCY_MATH_387 },
- { "-mno-push-args", MASK_NO_PUSH_ARGS },
- { "-mno-red-zone", MASK_NO_RED_ZONE },
- { "-momit-leaf-frame-pointer", MASK_OMIT_LEAF_FRAME_POINTER },
- { "-mrecip", MASK_RECIP },
- { "-mrtd", MASK_RTD },
- { "-msseregparm", MASK_SSEREGPARM },
- { "-mstack-arg-probe", MASK_STACK_PROBE },
- { "-mtls-direct-seg-refs", MASK_TLS_DIRECT_SEG_REFS },
- { "-mvect8-ret-in-mem", MASK_VECT8_RETURNS },
- { "-m8bit-idiv", MASK_USE_8BIT_IDIV },
- { "-mvzeroupper", MASK_VZEROUPPER },
- { "-mstv", MASK_STV },
- { "-mavx256-split-unaligned-load", MASK_AVX256_SPLIT_UNALIGNED_LOAD },
- { "-mavx256-split-unaligned-store", MASK_AVX256_SPLIT_UNALIGNED_STORE },
- { "-mcall-ms2sysv-xlogues", MASK_CALL_MS2SYSV_XLOGUES }
- };
-
- /* Additional flag options. */
- static struct ix86_target_opts flag2_opts[] =
- {
- { "-mgeneral-regs-only", OPTION_MASK_GENERAL_REGS_ONLY }
- };
-
- const char *opts[ARRAY_SIZE (isa_opts) + ARRAY_SIZE (isa2_opts)
- + ARRAY_SIZE (flag_opts) + ARRAY_SIZE (flag2_opts) + 6][2];
-
- char isa_other[40];
- char isa2_other[40];
- char flags_other[40];
- char flags2_other[40];
- unsigned num = 0;
- unsigned i, j;
- char *ret;
- char *ptr;
- size_t len;
- size_t line_len;
- size_t sep_len;
- const char *abi;
-
- memset (opts, '\0', sizeof (opts));
-
- /* Add -march= option. */
- if (arch)
- {
- opts[num][0] = "-march=";
- opts[num++][1] = arch;
- }
-
- /* Add -mtune= option. */
- if (tune)
- {
- opts[num][0] = "-mtune=";
- opts[num++][1] = tune;
- }
-
- /* Add -m32/-m64/-mx32. */
- if (add_abi_p)
- {
- if ((isa & OPTION_MASK_ISA_64BIT) != 0)
- {
- if ((isa & OPTION_MASK_ABI_64) != 0)
- abi = "-m64";
- else
- abi = "-mx32";
- }
- else
- abi = "-m32";
- opts[num++][0] = abi;
- }
- isa &= ~(OPTION_MASK_ISA_64BIT | OPTION_MASK_ABI_64 | OPTION_MASK_ABI_X32);
-
- /* Pick out the options in isa2 options. */
- for (i = 0; i < ARRAY_SIZE (isa2_opts); i++)
- {
- if ((isa2 & isa2_opts[i].mask) != 0)
- {
- opts[num++][0] = isa2_opts[i].option;
- isa2 &= ~ isa2_opts[i].mask;
- }
- }
-
- if (isa2 && add_nl_p)
- {
- opts[num++][0] = isa2_other;
- sprintf (isa2_other, "(other isa2: %#" HOST_WIDE_INT_PRINT "x)", isa2);
- }
-
- /* Pick out the options in isa options. */
- for (i = 0; i < ARRAY_SIZE (isa_opts); i++)
- {
- if ((isa & isa_opts[i].mask) != 0)
- {
- opts[num++][0] = isa_opts[i].option;
- isa &= ~ isa_opts[i].mask;
- }
- }
-
- if (isa && add_nl_p)
- {
- opts[num++][0] = isa_other;
- sprintf (isa_other, "(other isa: %#" HOST_WIDE_INT_PRINT "x)", isa);
- }
-
- /* Add flag options. */
- for (i = 0; i < ARRAY_SIZE (flag_opts); i++)
- {
- if ((flags & flag_opts[i].mask) != 0)
- {
- opts[num++][0] = flag_opts[i].option;
- flags &= ~ flag_opts[i].mask;
- }
- }
-
- if (flags && add_nl_p)
- {
- opts[num++][0] = flags_other;
- sprintf (flags_other, "(other flags: %#x)", flags);
- }
-
- /* Add additional flag options. */
- for (i = 0; i < ARRAY_SIZE (flag2_opts); i++)
- {
- if ((flags2 & flag2_opts[i].mask) != 0)
- {
- opts[num++][0] = flag2_opts[i].option;
- flags2 &= ~ flag2_opts[i].mask;
- }
- }
-
- if (flags2 && add_nl_p)
- {
- opts[num++][0] = flags2_other;
- sprintf (flags2_other, "(other flags2: %#x)", flags2);
- }
-
- /* Add -mfpmath= option. */
- if (fpmath)
- {
- opts[num][0] = "-mfpmath=";
- switch ((int) fpmath)
- {
- case FPMATH_387:
- opts[num++][1] = "387";
- break;
-
- case FPMATH_SSE:
- opts[num++][1] = "sse";
- break;
-
- case FPMATH_387 | FPMATH_SSE:
- opts[num++][1] = "sse+387";
- break;
-
- default:
- gcc_unreachable ();
- }
- }
-
- /* Add -mprefer-vector-width= option. */
- if (pvw)
- {
- opts[num][0] = "-mprefer-vector-width=";
- switch ((int) pvw)
- {
- case PVW_AVX128:
- opts[num++][1] = "128";
- break;
-
- case PVW_AVX256:
- opts[num++][1] = "256";
- break;
-
- case PVW_AVX512:
- opts[num++][1] = "512";
- break;
-
- default:
- gcc_unreachable ();
- }
- }
-
- /* Any options? */
- if (num == 0)
- return NULL;
-
- gcc_assert (num < ARRAY_SIZE (opts));
-
- /* Size the string. */
- len = 0;
- sep_len = (add_nl_p) ? 3 : 1;
- for (i = 0; i < num; i++)
- {
- len += sep_len;
- for (j = 0; j < 2; j++)
- if (opts[i][j])
- len += strlen (opts[i][j]);
- }
-
- /* Build the string. */
- ret = ptr = (char *) xmalloc (len);
- line_len = 0;
-
- for (i = 0; i < num; i++)
- {
- size_t len2[2];
-
- for (j = 0; j < 2; j++)
- len2[j] = (opts[i][j]) ? strlen (opts[i][j]) : 0;
-
- if (i != 0)
- {
- *ptr++ = ' ';
- line_len++;
-
- if (add_nl_p && line_len + len2[0] + len2[1] > 70)
- {
- *ptr++ = '\\';
- *ptr++ = '\n';
- line_len = 0;
- }
- }
-
- for (j = 0; j < 2; j++)
- if (opts[i][j])
- {
- memcpy (ptr, opts[i][j], len2[j]);
- ptr += len2[j];
- line_len += len2[j];
- }
- }
-
- *ptr = '\0';
- gcc_assert (ret + len >= ptr);
-
- return ret;
-}
-
-/* Function that is callable from the debugger to print the current
- options. */
-void ATTRIBUTE_UNUSED
-ix86_debug_options (void)
-{
- char *opts = ix86_target_string (ix86_isa_flags, ix86_isa_flags2,
- target_flags, ix86_target_flags,
- ix86_arch_string, ix86_tune_string,
- ix86_fpmath, prefer_vector_width_type,
- true, true);
-
- if (opts)
- {
- fprintf (stderr, "%s\n\n", opts);
- free (opts);
- }
- else
- fputs ("<no options>\n\n", stderr);
-
- return;
-}
-
-/* Save the current options */
-
-void
-ix86_function_specific_save (struct cl_target_option *ptr,
- struct gcc_options *opts)
-{
- ptr->arch = ix86_arch;
- ptr->schedule = ix86_schedule;
- ptr->prefetch_sse = x86_prefetch_sse;
- ptr->tune = ix86_tune;
- ptr->branch_cost = ix86_branch_cost;
- ptr->tune_defaulted = ix86_tune_defaulted;
- ptr->arch_specified = ix86_arch_specified;
- ptr->x_ix86_isa_flags_explicit = opts->x_ix86_isa_flags_explicit;
- ptr->x_ix86_isa_flags2_explicit = opts->x_ix86_isa_flags2_explicit;
- ptr->x_recip_mask_explicit = opts->x_recip_mask_explicit;
- ptr->x_ix86_arch_string = opts->x_ix86_arch_string;
- ptr->x_ix86_tune_string = opts->x_ix86_tune_string;
- ptr->x_ix86_cmodel = opts->x_ix86_cmodel;
- ptr->x_ix86_abi = opts->x_ix86_abi;
- ptr->x_ix86_asm_dialect = opts->x_ix86_asm_dialect;
- ptr->x_ix86_branch_cost = opts->x_ix86_branch_cost;
- ptr->x_ix86_dump_tunes = opts->x_ix86_dump_tunes;
- ptr->x_ix86_force_align_arg_pointer = opts->x_ix86_force_align_arg_pointer;
- ptr->x_ix86_force_drap = opts->x_ix86_force_drap;
- ptr->x_ix86_incoming_stack_boundary_arg = opts->x_ix86_incoming_stack_boundary_arg;
- ptr->x_ix86_pmode = opts->x_ix86_pmode;
- ptr->x_ix86_preferred_stack_boundary_arg = opts->x_ix86_preferred_stack_boundary_arg;
- ptr->x_ix86_recip_name = opts->x_ix86_recip_name;
- ptr->x_ix86_regparm = opts->x_ix86_regparm;
- ptr->x_ix86_section_threshold = opts->x_ix86_section_threshold;
- ptr->x_ix86_sse2avx = opts->x_ix86_sse2avx;
- ptr->x_ix86_stack_protector_guard = opts->x_ix86_stack_protector_guard;
- ptr->x_ix86_stringop_alg = opts->x_ix86_stringop_alg;
- ptr->x_ix86_tls_dialect = opts->x_ix86_tls_dialect;
- ptr->x_ix86_tune_ctrl_string = opts->x_ix86_tune_ctrl_string;
- ptr->x_ix86_tune_memcpy_strategy = opts->x_ix86_tune_memcpy_strategy;
- ptr->x_ix86_tune_memset_strategy = opts->x_ix86_tune_memset_strategy;
- ptr->x_ix86_tune_no_default = opts->x_ix86_tune_no_default;
- ptr->x_ix86_veclibabi_type = opts->x_ix86_veclibabi_type;
-
- /* The fields are char but the variables are not; make sure the
- values fit in the fields. */
- gcc_assert (ptr->arch == ix86_arch);
- gcc_assert (ptr->schedule == ix86_schedule);
- gcc_assert (ptr->tune == ix86_tune);
- gcc_assert (ptr->branch_cost == ix86_branch_cost);
-}
-
-/* Feature tests against the various architecture variations, used to create
- ix86_arch_features based on the processor mask. */
-static unsigned HOST_WIDE_INT initial_ix86_arch_features[X86_ARCH_LAST] = {
- /* X86_ARCH_CMOV: Conditional move was added for pentiumpro. */
- ~(m_386 | m_486 | m_PENT | m_LAKEMONT | m_K6),
-
- /* X86_ARCH_CMPXCHG: Compare and exchange was added for 80486. */
- ~m_386,
-
- /* X86_ARCH_CMPXCHG8B: Compare and exchange 8 bytes was added for pentium. */
- ~(m_386 | m_486),
-
- /* X86_ARCH_XADD: Exchange and add was added for 80486. */
- ~m_386,
-
- /* X86_ARCH_BSWAP: Byteswap was added for 80486. */
- ~m_386,
-};
-
-/* This table must be in sync with enum processor_type in i386.h. */
-static const struct processor_costs *processor_cost_table[] =
-{
- &generic_cost,
- &i386_cost,
- &i486_cost,
- &pentium_cost,
- &lakemont_cost,
- &pentiumpro_cost,
- &pentium4_cost,
- &nocona_cost,
- &core_cost,
- &core_cost,
- &core_cost,
- &core_cost,
- &atom_cost,
- &slm_cost,
- &slm_cost,
- &slm_cost,
- &slm_cost,
- &slm_cost,
- &slm_cost,
- &skylake_cost,
- &skylake_cost,
- &skylake_cost,
- &skylake_cost,
- &skylake_cost,
- &skylake_cost,
- &skylake_cost,
- &skylake_cost,
- &intel_cost,
- &geode_cost,
- &k6_cost,
- &athlon_cost,
- &k8_cost,
- &amdfam10_cost,
- &bdver_cost,
- &bdver_cost,
- &bdver_cost,
- &bdver_cost,
- &btver1_cost,
- &btver2_cost,
- &znver1_cost,
- &znver2_cost
-};
-
-/* Guarantee that the array is aligned with enum processor_type. */
-STATIC_ASSERT (ARRAY_SIZE (processor_cost_table) == PROCESSOR_max);
-
-static bool
-ix86_option_override_internal (bool main_args_p,
- struct gcc_options *opts,
- struct gcc_options *opts_set);
-static void
-set_ix86_tune_features (struct gcc_options *opts,
- enum processor_type ix86_tune, bool dump);
-
-/* Restore the current options */
-
-void
-ix86_function_specific_restore (struct gcc_options *opts,
- struct cl_target_option *ptr)
-{
- enum processor_type old_tune = ix86_tune;
- enum processor_type old_arch = ix86_arch;
- unsigned HOST_WIDE_INT ix86_arch_mask;
- int i;
-
- /* We don't change -fPIC. */
- opts->x_flag_pic = flag_pic;
-
- ix86_arch = (enum processor_type) ptr->arch;
- ix86_schedule = (enum attr_cpu) ptr->schedule;
- ix86_tune = (enum processor_type) ptr->tune;
- x86_prefetch_sse = ptr->prefetch_sse;
- opts->x_ix86_branch_cost = ptr->branch_cost;
- ix86_tune_defaulted = ptr->tune_defaulted;
- ix86_arch_specified = ptr->arch_specified;
- opts->x_ix86_isa_flags_explicit = ptr->x_ix86_isa_flags_explicit;
- opts->x_ix86_isa_flags2_explicit = ptr->x_ix86_isa_flags2_explicit;
- opts->x_recip_mask_explicit = ptr->x_recip_mask_explicit;
- opts->x_ix86_arch_string = ptr->x_ix86_arch_string;
- opts->x_ix86_tune_string = ptr->x_ix86_tune_string;
- opts->x_ix86_cmodel = ptr->x_ix86_cmodel;
- opts->x_ix86_abi = ptr->x_ix86_abi;
- opts->x_ix86_asm_dialect = ptr->x_ix86_asm_dialect;
- opts->x_ix86_branch_cost = ptr->x_ix86_branch_cost;
- opts->x_ix86_dump_tunes = ptr->x_ix86_dump_tunes;
- opts->x_ix86_force_align_arg_pointer = ptr->x_ix86_force_align_arg_pointer;
- opts->x_ix86_force_drap = ptr->x_ix86_force_drap;
- opts->x_ix86_incoming_stack_boundary_arg = ptr->x_ix86_incoming_stack_boundary_arg;
- opts->x_ix86_pmode = ptr->x_ix86_pmode;
- opts->x_ix86_preferred_stack_boundary_arg = ptr->x_ix86_preferred_stack_boundary_arg;
- opts->x_ix86_recip_name = ptr->x_ix86_recip_name;
- opts->x_ix86_regparm = ptr->x_ix86_regparm;
- opts->x_ix86_section_threshold = ptr->x_ix86_section_threshold;
- opts->x_ix86_sse2avx = ptr->x_ix86_sse2avx;
- opts->x_ix86_stack_protector_guard = ptr->x_ix86_stack_protector_guard;
- opts->x_ix86_stringop_alg = ptr->x_ix86_stringop_alg;
- opts->x_ix86_tls_dialect = ptr->x_ix86_tls_dialect;
- opts->x_ix86_tune_ctrl_string = ptr->x_ix86_tune_ctrl_string;
- opts->x_ix86_tune_memcpy_strategy = ptr->x_ix86_tune_memcpy_strategy;
- opts->x_ix86_tune_memset_strategy = ptr->x_ix86_tune_memset_strategy;
- opts->x_ix86_tune_no_default = ptr->x_ix86_tune_no_default;
- opts->x_ix86_veclibabi_type = ptr->x_ix86_veclibabi_type;
- ix86_tune_cost = processor_cost_table[ix86_tune];
- /* TODO: ix86_cost should be chosen at instruction or function granuality
- so for cold code we use size_cost even in !optimize_size compilation. */
- if (opts->x_optimize_size)
- ix86_cost = &ix86_size_cost;
- else
- ix86_cost = ix86_tune_cost;
-
- /* Recreate the arch feature tests if the arch changed */
- if (old_arch != ix86_arch)
- {
- ix86_arch_mask = HOST_WIDE_INT_1U << ix86_arch;
- for (i = 0; i < X86_ARCH_LAST; ++i)
- ix86_arch_features[i]
- = !!(initial_ix86_arch_features[i] & ix86_arch_mask);
- }
-
- /* Recreate the tune optimization tests */
- if (old_tune != ix86_tune)
- set_ix86_tune_features (opts, ix86_tune, false);
-}
-
-/* Adjust target options after streaming them in. This is mainly about
- reconciling them with global options. */
-
-void
-ix86_function_specific_post_stream_in (struct cl_target_option *ptr)
-{
- /* flag_pic is a global option, but ix86_cmodel is target saved option
- partly computed from flag_pic. If flag_pic is on, adjust x_ix86_cmodel
- for PIC, or error out. */
- if (flag_pic)
- switch (ptr->x_ix86_cmodel)
- {
- case CM_SMALL:
- ptr->x_ix86_cmodel = CM_SMALL_PIC;
- break;
-
- case CM_MEDIUM:
- ptr->x_ix86_cmodel = CM_MEDIUM_PIC;
- break;
-
- case CM_LARGE:
- ptr->x_ix86_cmodel = CM_LARGE_PIC;
- break;
-
- case CM_KERNEL:
- error ("code model %s does not support PIC mode", "kernel");
- break;
-
- default:
- break;
- }
- else
- switch (ptr->x_ix86_cmodel)
- {
- case CM_SMALL_PIC:
- ptr->x_ix86_cmodel = CM_SMALL;
- break;
-
- case CM_MEDIUM_PIC:
- ptr->x_ix86_cmodel = CM_MEDIUM;
- break;
-
- case CM_LARGE_PIC:
- ptr->x_ix86_cmodel = CM_LARGE;
- break;
-
- default:
- break;
- }
-}
-
-/* Print the current options */
-
-void
-ix86_function_specific_print (FILE *file, int indent,
- struct cl_target_option *ptr)
-{
- char *target_string
- = ix86_target_string (ptr->x_ix86_isa_flags, ptr->x_ix86_isa_flags2,
- ptr->x_target_flags, ptr->x_ix86_target_flags,
- NULL, NULL, ptr->x_ix86_fpmath,
- ptr->x_prefer_vector_width_type, false, true);
-
- gcc_assert (ptr->arch < PROCESSOR_max);
- fprintf (file, "%*sarch = %d (%s)\n",
- indent, "",
- ptr->arch, processor_names[ptr->arch]);
-
- gcc_assert (ptr->tune < PROCESSOR_max);
- fprintf (file, "%*stune = %d (%s)\n",
- indent, "",
- ptr->tune, processor_names[ptr->tune]);
-
- fprintf (file, "%*sbranch_cost = %d\n", indent, "", ptr->branch_cost);
-
- if (target_string)
- {
- fprintf (file, "%*s%s\n", indent, "", target_string);
- free (target_string);
- }
-}
-
-\f
-/* Inner function to process the attribute((target(...))), take an argument and
- set the current options from the argument. If we have a list, recursively go
- over the list. */
-
-static bool
-ix86_valid_target_attribute_inner_p (tree fndecl, tree args, char *p_strings[],
- struct gcc_options *opts,
- struct gcc_options *opts_set,
- struct gcc_options *enum_opts_set,
- bool target_clone_attr)
-{
- char *next_optstr;
- bool ret = true;
-
-#define IX86_ATTR_ISA(S,O) { S, sizeof (S)-1, ix86_opt_isa, O, 0 }
-#define IX86_ATTR_STR(S,O) { S, sizeof (S)-1, ix86_opt_str, O, 0 }
-#define IX86_ATTR_ENUM(S,O) { S, sizeof (S)-1, ix86_opt_enum, O, 0 }
-#define IX86_ATTR_YES(S,O,M) { S, sizeof (S)-1, ix86_opt_yes, O, M }
-#define IX86_ATTR_NO(S,O,M) { S, sizeof (S)-1, ix86_opt_no, O, M }
-
- enum ix86_opt_type
- {
- ix86_opt_unknown,
- ix86_opt_yes,
- ix86_opt_no,
- ix86_opt_str,
- ix86_opt_enum,
- ix86_opt_isa
- };
-
- static const struct
- {
- const char *string;
- size_t len;
- enum ix86_opt_type type;
- int opt;
- int mask;
- } attrs[] = {
- /* isa options */
- IX86_ATTR_ISA ("pconfig", OPT_mpconfig),
- IX86_ATTR_ISA ("wbnoinvd", OPT_mwbnoinvd),
- IX86_ATTR_ISA ("sgx", OPT_msgx),
- IX86_ATTR_ISA ("avx5124fmaps", OPT_mavx5124fmaps),
- IX86_ATTR_ISA ("avx5124vnniw", OPT_mavx5124vnniw),
- IX86_ATTR_ISA ("avx512vpopcntdq", OPT_mavx512vpopcntdq),
- IX86_ATTR_ISA ("avx512vbmi2", OPT_mavx512vbmi2),
- IX86_ATTR_ISA ("avx512vnni", OPT_mavx512vnni),
- IX86_ATTR_ISA ("avx512bitalg", OPT_mavx512bitalg),
- IX86_ATTR_ISA ("avx512vp2intersect", OPT_mavx512vp2intersect),
-
- IX86_ATTR_ISA ("avx512vbmi", OPT_mavx512vbmi),
- IX86_ATTR_ISA ("avx512ifma", OPT_mavx512ifma),
- IX86_ATTR_ISA ("avx512vl", OPT_mavx512vl),
- IX86_ATTR_ISA ("avx512bw", OPT_mavx512bw),
- IX86_ATTR_ISA ("avx512dq", OPT_mavx512dq),
- IX86_ATTR_ISA ("avx512er", OPT_mavx512er),
- IX86_ATTR_ISA ("avx512pf", OPT_mavx512pf),
- IX86_ATTR_ISA ("avx512cd", OPT_mavx512cd),
- IX86_ATTR_ISA ("avx512f", OPT_mavx512f),
- IX86_ATTR_ISA ("avx2", OPT_mavx2),
- IX86_ATTR_ISA ("fma", OPT_mfma),
- IX86_ATTR_ISA ("xop", OPT_mxop),
- IX86_ATTR_ISA ("fma4", OPT_mfma4),
- IX86_ATTR_ISA ("f16c", OPT_mf16c),
- IX86_ATTR_ISA ("avx", OPT_mavx),
- IX86_ATTR_ISA ("sse4", OPT_msse4),
- IX86_ATTR_ISA ("sse4.2", OPT_msse4_2),
- IX86_ATTR_ISA ("sse4.1", OPT_msse4_1),
- IX86_ATTR_ISA ("sse4a", OPT_msse4a),
- IX86_ATTR_ISA ("ssse3", OPT_mssse3),
- IX86_ATTR_ISA ("sse3", OPT_msse3),
- IX86_ATTR_ISA ("aes", OPT_maes),
- IX86_ATTR_ISA ("sha", OPT_msha),
- IX86_ATTR_ISA ("pclmul", OPT_mpclmul),
- IX86_ATTR_ISA ("sse2", OPT_msse2),
- IX86_ATTR_ISA ("sse", OPT_msse),
- IX86_ATTR_ISA ("3dnowa", OPT_m3dnowa),
- IX86_ATTR_ISA ("3dnow", OPT_m3dnow),
- IX86_ATTR_ISA ("mmx", OPT_mmmx),
- IX86_ATTR_ISA ("rtm", OPT_mrtm),
- IX86_ATTR_ISA ("prfchw", OPT_mprfchw),
- IX86_ATTR_ISA ("rdseed", OPT_mrdseed),
- IX86_ATTR_ISA ("adx", OPT_madx),
- IX86_ATTR_ISA ("prefetchwt1", OPT_mprefetchwt1),
- IX86_ATTR_ISA ("clflushopt", OPT_mclflushopt),
- IX86_ATTR_ISA ("xsaves", OPT_mxsaves),
- IX86_ATTR_ISA ("xsavec", OPT_mxsavec),
- IX86_ATTR_ISA ("xsaveopt", OPT_mxsaveopt),
- IX86_ATTR_ISA ("xsave", OPT_mxsave),
- IX86_ATTR_ISA ("abm", OPT_mabm),
- IX86_ATTR_ISA ("bmi", OPT_mbmi),
- IX86_ATTR_ISA ("bmi2", OPT_mbmi2),
- IX86_ATTR_ISA ("lzcnt", OPT_mlzcnt),
- IX86_ATTR_ISA ("tbm", OPT_mtbm),
- IX86_ATTR_ISA ("popcnt", OPT_mpopcnt),
- IX86_ATTR_ISA ("cx16", OPT_mcx16),
- IX86_ATTR_ISA ("sahf", OPT_msahf),
- IX86_ATTR_ISA ("movbe", OPT_mmovbe),
- IX86_ATTR_ISA ("crc32", OPT_mcrc32),
- IX86_ATTR_ISA ("fsgsbase", OPT_mfsgsbase),
- IX86_ATTR_ISA ("rdrnd", OPT_mrdrnd),
- IX86_ATTR_ISA ("mwaitx", OPT_mmwaitx),
- IX86_ATTR_ISA ("clzero", OPT_mclzero),
- IX86_ATTR_ISA ("pku", OPT_mpku),
- IX86_ATTR_ISA ("lwp", OPT_mlwp),
- IX86_ATTR_ISA ("hle", OPT_mhle),
- IX86_ATTR_ISA ("fxsr", OPT_mfxsr),
- IX86_ATTR_ISA ("clwb", OPT_mclwb),
- IX86_ATTR_ISA ("rdpid", OPT_mrdpid),
- IX86_ATTR_ISA ("gfni", OPT_mgfni),
- IX86_ATTR_ISA ("shstk", OPT_mshstk),
- IX86_ATTR_ISA ("vaes", OPT_mvaes),
- IX86_ATTR_ISA ("vpclmulqdq", OPT_mvpclmulqdq),
- IX86_ATTR_ISA ("movdiri", OPT_mmovdiri),
- IX86_ATTR_ISA ("movdir64b", OPT_mmovdir64b),
- IX86_ATTR_ISA ("waitpkg", OPT_mwaitpkg),
- IX86_ATTR_ISA ("cldemote", OPT_mcldemote),
- IX86_ATTR_ISA ("ptwrite", OPT_mptwrite),
- IX86_ATTR_ISA ("avx512bf16", OPT_mavx512bf16),
- IX86_ATTR_ISA ("enqcmd", OPT_menqcmd),
- IX86_ATTR_ISA ("serialize", OPT_mserialize),
- IX86_ATTR_ISA ("tsxldtrk", OPT_mtsxldtrk),
-
- /* enum options */
- IX86_ATTR_ENUM ("fpmath=", OPT_mfpmath_),
- IX86_ATTR_ENUM ("prefer-vector-width=", OPT_mprefer_vector_width_),
-
- /* string options */
- IX86_ATTR_STR ("arch=", IX86_FUNCTION_SPECIFIC_ARCH),
- IX86_ATTR_STR ("tune=", IX86_FUNCTION_SPECIFIC_TUNE),
-
- /* flag options */
- IX86_ATTR_YES ("cld",
- OPT_mcld,
- MASK_CLD),
-
- IX86_ATTR_NO ("fancy-math-387",
- OPT_mfancy_math_387,
- MASK_NO_FANCY_MATH_387),
-
- IX86_ATTR_YES ("ieee-fp",
- OPT_mieee_fp,
- MASK_IEEE_FP),
-
- IX86_ATTR_YES ("inline-all-stringops",
- OPT_minline_all_stringops,
- MASK_INLINE_ALL_STRINGOPS),
-
- IX86_ATTR_YES ("inline-stringops-dynamically",
- OPT_minline_stringops_dynamically,
- MASK_INLINE_STRINGOPS_DYNAMICALLY),
-
- IX86_ATTR_NO ("align-stringops",
- OPT_mno_align_stringops,
- MASK_NO_ALIGN_STRINGOPS),
-
- IX86_ATTR_YES ("recip",
- OPT_mrecip,
- MASK_RECIP),
- };
-
- location_t loc
- = fndecl == NULL ? UNKNOWN_LOCATION : DECL_SOURCE_LOCATION (fndecl);
- const char *attr_name = target_clone_attr ? "target_clone" : "target";
-
- /* If this is a list, recurse to get the options. */
- if (TREE_CODE (args) == TREE_LIST)
- {
- bool ret = true;
-
- for (; args; args = TREE_CHAIN (args))
- if (TREE_VALUE (args)
- && !ix86_valid_target_attribute_inner_p (fndecl, TREE_VALUE (args),
- p_strings, opts, opts_set,
- enum_opts_set,
- target_clone_attr))
- ret = false;
-
- return ret;
- }
-
- else if (TREE_CODE (args) != STRING_CST)
- {
- error_at (loc, "attribute %qs argument is not a string", attr_name);
- return false;
- }
-
- /* Handle multiple arguments separated by commas. */
- next_optstr = ASTRDUP (TREE_STRING_POINTER (args));
-
- while (next_optstr && *next_optstr != '\0')
- {
- char *p = next_optstr;
- char *orig_p = p;
- char *comma = strchr (next_optstr, ',');
- size_t len, opt_len;
- int opt;
- bool opt_set_p;
- char ch;
- unsigned i;
- enum ix86_opt_type type = ix86_opt_unknown;
- int mask = 0;
-
- if (comma)
- {
- *comma = '\0';
- len = comma - next_optstr;
- next_optstr = comma + 1;
- }
- else
- {
- len = strlen (p);
- next_optstr = NULL;
- }
-
- /* Recognize no-xxx. */
- if (len > 3 && p[0] == 'n' && p[1] == 'o' && p[2] == '-')
- {
- opt_set_p = false;
- p += 3;
- len -= 3;
- }
- else
- opt_set_p = true;
-
- /* Find the option. */
- ch = *p;
- opt = N_OPTS;
- for (i = 0; i < ARRAY_SIZE (attrs); i++)
- {
- type = attrs[i].type;
- opt_len = attrs[i].len;
- if (ch == attrs[i].string[0]
- && ((type != ix86_opt_str && type != ix86_opt_enum)
- ? len == opt_len
- : len > opt_len)
- && memcmp (p, attrs[i].string, opt_len) == 0)
- {
- opt = attrs[i].opt;
- mask = attrs[i].mask;
- break;
- }
- }
-
- /* Process the option. */
- if (opt == N_OPTS)
- {
- error_at (loc, "attribute %qs argument %qs is unknown",
- orig_p, attr_name);
- ret = false;
- }
-
- else if (type == ix86_opt_isa)
- {
- struct cl_decoded_option decoded;
-
- generate_option (opt, NULL, opt_set_p, CL_TARGET, &decoded);
- ix86_handle_option (opts, opts_set,
- &decoded, input_location);
- }
-
- else if (type == ix86_opt_yes || type == ix86_opt_no)
- {
- if (type == ix86_opt_no)
- opt_set_p = !opt_set_p;
-
- if (opt_set_p)
- opts->x_target_flags |= mask;
- else
- opts->x_target_flags &= ~mask;
- }
-
- else if (type == ix86_opt_str)
- {
- if (p_strings[opt])
- {
- error_at (loc, "attribute value %qs was already specified "
- "in %qs attribute", orig_p, attr_name);
- ret = false;
- }
- else
- {
- p_strings[opt] = xstrdup (p + opt_len);
- if (opt == IX86_FUNCTION_SPECIFIC_ARCH)
- {
- /* If arch= is set, clear all bits in x_ix86_isa_flags,
- except for ISA_64BIT, ABI_64, ABI_X32, and CODE16
- and all bits in x_ix86_isa_flags2. */
- opts->x_ix86_isa_flags &= (OPTION_MASK_ISA_64BIT
- | OPTION_MASK_ABI_64
- | OPTION_MASK_ABI_X32
- | OPTION_MASK_CODE16);
- opts->x_ix86_isa_flags_explicit &= (OPTION_MASK_ISA_64BIT
- | OPTION_MASK_ABI_64
- | OPTION_MASK_ABI_X32
- | OPTION_MASK_CODE16);
- opts->x_ix86_isa_flags2 = 0;
- opts->x_ix86_isa_flags2_explicit = 0;
- }
- }
- }
-
- else if (type == ix86_opt_enum)
- {
- bool arg_ok;
- int value;
-
- arg_ok = opt_enum_arg_to_value (opt, p + opt_len, &value, CL_TARGET);
- if (arg_ok)
- set_option (opts, enum_opts_set, opt, value,
- p + opt_len, DK_UNSPECIFIED, input_location,
- global_dc);
- else
- {
- error_at (loc, "attribute value %qs is unknown in %qs attribute",
- orig_p, attr_name);
- ret = false;
- }
- }
-
- else
- gcc_unreachable ();
- }
-
- return ret;
-}
-
-/* Release allocated strings. */
-static void
-release_options_strings (char **option_strings)
-{
- /* Free up memory allocated to hold the strings */
- for (unsigned i = 0; i < IX86_FUNCTION_SPECIFIC_MAX; i++)
- free (option_strings[i]);
-}
-
-/* Return a TARGET_OPTION_NODE tree of the target options listed or NULL. */
-
-tree
-ix86_valid_target_attribute_tree (tree fndecl, tree args,
- struct gcc_options *opts,
- struct gcc_options *opts_set,
- bool target_clone_attr)
-{
- const char *orig_arch_string = opts->x_ix86_arch_string;
- const char *orig_tune_string = opts->x_ix86_tune_string;
- enum fpmath_unit orig_fpmath_set = opts_set->x_ix86_fpmath;
- enum prefer_vector_width orig_pvw_set = opts_set->x_prefer_vector_width_type;
- int orig_tune_defaulted = ix86_tune_defaulted;
- int orig_arch_specified = ix86_arch_specified;
- char *option_strings[IX86_FUNCTION_SPECIFIC_MAX] = { NULL, NULL };
- tree t = NULL_TREE;
- struct cl_target_option *def
- = TREE_TARGET_OPTION (target_option_default_node);
- struct gcc_options enum_opts_set;
-
- memset (&enum_opts_set, 0, sizeof (enum_opts_set));
-
- /* Process each of the options on the chain. */
- if (!ix86_valid_target_attribute_inner_p (fndecl, args, option_strings, opts,
- opts_set, &enum_opts_set,
- target_clone_attr))
- return error_mark_node;
-
- /* If the changed options are different from the default, rerun
- ix86_option_override_internal, and then save the options away.
- The string options are attribute options, and will be undone
- when we copy the save structure. */
- if (opts->x_ix86_isa_flags != def->x_ix86_isa_flags
- || opts->x_ix86_isa_flags2 != def->x_ix86_isa_flags2
- || opts->x_target_flags != def->x_target_flags
- || option_strings[IX86_FUNCTION_SPECIFIC_ARCH]
- || option_strings[IX86_FUNCTION_SPECIFIC_TUNE]
- || enum_opts_set.x_ix86_fpmath
- || enum_opts_set.x_prefer_vector_width_type)
- {
- /* If we are using the default tune= or arch=, undo the string assigned,
- and use the default. */
- if (option_strings[IX86_FUNCTION_SPECIFIC_ARCH])
- opts->x_ix86_arch_string
- = ggc_strdup (option_strings[IX86_FUNCTION_SPECIFIC_ARCH]);
- else if (!orig_arch_specified)
- opts->x_ix86_arch_string = NULL;
-
- if (option_strings[IX86_FUNCTION_SPECIFIC_TUNE])
- opts->x_ix86_tune_string
- = ggc_strdup (option_strings[IX86_FUNCTION_SPECIFIC_TUNE]);
- else if (orig_tune_defaulted)
- opts->x_ix86_tune_string = NULL;
-
- /* If fpmath= is not set, and we now have sse2 on 32-bit, use it. */
- if (enum_opts_set.x_ix86_fpmath)
- opts_set->x_ix86_fpmath = (enum fpmath_unit) 1;
- if (enum_opts_set.x_prefer_vector_width_type)
- opts_set->x_prefer_vector_width_type = (enum prefer_vector_width) 1;
-
- /* Do any overrides, such as arch=xxx, or tune=xxx support. */
- bool r = ix86_option_override_internal (false, opts, opts_set);
- if (!r)
- {
- release_options_strings (option_strings);
- return error_mark_node;
- }
-
- /* Add any builtin functions with the new isa if any. */
- ix86_add_new_builtins (opts->x_ix86_isa_flags, opts->x_ix86_isa_flags2);
-
- /* Save the current options unless we are validating options for
- #pragma. */
- t = build_target_option_node (opts);
-
- opts->x_ix86_arch_string = orig_arch_string;
- opts->x_ix86_tune_string = orig_tune_string;
- opts_set->x_ix86_fpmath = orig_fpmath_set;
- opts_set->x_prefer_vector_width_type = orig_pvw_set;
-
- release_options_strings (option_strings);
- }
-
- return t;
-}
-
-/* Hook to validate attribute((target("string"))). */
-
-bool
-ix86_valid_target_attribute_p (tree fndecl,
- tree ARG_UNUSED (name),
- tree args,
- int flags)
-{
- struct gcc_options func_options;
- tree new_target, new_optimize;
- bool ret = true;
-
- /* attribute((target("default"))) does nothing, beyond
- affecting multi-versioning. */
- if (TREE_VALUE (args)
- && TREE_CODE (TREE_VALUE (args)) == STRING_CST
- && TREE_CHAIN (args) == NULL_TREE
- && strcmp (TREE_STRING_POINTER (TREE_VALUE (args)), "default") == 0)
- return true;
-
- tree old_optimize = build_optimization_node (&global_options);
-
- /* Get the optimization options of the current function. */
- tree func_optimize = DECL_FUNCTION_SPECIFIC_OPTIMIZATION (fndecl);
-
- if (!func_optimize)
- func_optimize = old_optimize;
-
- /* Init func_options. */
- memset (&func_options, 0, sizeof (func_options));
- init_options_struct (&func_options, NULL);
- lang_hooks.init_options_struct (&func_options);
-
- cl_optimization_restore (&func_options,
- TREE_OPTIMIZATION (func_optimize));
-
- /* Initialize func_options to the default before its target options can
- be set. */
- cl_target_option_restore (&func_options,
- TREE_TARGET_OPTION (target_option_default_node));
-
- /* FLAGS == 1 is used for target_clones attribute. */
- new_target
- = ix86_valid_target_attribute_tree (fndecl, args, &func_options,
- &global_options_set, flags == 1);
-
- new_optimize = build_optimization_node (&func_options);
-
- if (new_target == error_mark_node)
- ret = false;
-
- else if (fndecl && new_target)
- {
- DECL_FUNCTION_SPECIFIC_TARGET (fndecl) = new_target;
-
- if (old_optimize != new_optimize)
- DECL_FUNCTION_SPECIFIC_OPTIMIZATION (fndecl) = new_optimize;
- }
-
- return ret;
-}
-
-const char *stringop_alg_names[] = {
-#define DEF_ENUM
-#define DEF_ALG(alg, name) #name,
-#include "stringop.def"
-#undef DEF_ENUM
-#undef DEF_ALG
-};
-
-/* Parse parameter string passed to -mmemcpy-strategy= or -mmemset-strategy=.
- The string is of the following form (or comma separated list of it):
-
- strategy_alg:max_size:[align|noalign]
-
- where the full size range for the strategy is either [0, max_size] or
- [min_size, max_size], in which min_size is the max_size + 1 of the
- preceding range. The last size range must have max_size == -1.
-
- Examples:
-
- 1.
- -mmemcpy-strategy=libcall:-1:noalign
-
- this is equivalent to (for known size memcpy) -mstringop-strategy=libcall
-
-
- 2.
- -mmemset-strategy=rep_8byte:16:noalign,vector_loop:2048:align,libcall:-1:noalign
-
- This is to tell the compiler to use the following strategy for memset
- 1) when the expected size is between [1, 16], use rep_8byte strategy;
- 2) when the size is between [17, 2048], use vector_loop;
- 3) when the size is > 2048, use libcall. */
-
-struct stringop_size_range
-{
- int max;
- stringop_alg alg;
- bool noalign;
-};
-
-static void
-ix86_parse_stringop_strategy_string (char *strategy_str, bool is_memset)
-{
- const struct stringop_algs *default_algs;
- stringop_size_range input_ranges[MAX_STRINGOP_ALGS];
- char *curr_range_str, *next_range_str;
- const char *opt = is_memset ? "-mmemset_strategy=" : "-mmemcpy_strategy=";
- int i = 0, n = 0;
-
- if (is_memset)
- default_algs = &ix86_cost->memset[TARGET_64BIT != 0];
- else
- default_algs = &ix86_cost->memcpy[TARGET_64BIT != 0];
-
- curr_range_str = strategy_str;
-
- do
- {
- int maxs;
- char alg_name[128];
- char align[16];
- next_range_str = strchr (curr_range_str, ',');
- if (next_range_str)
- *next_range_str++ = '\0';
-
- if (sscanf (curr_range_str, "%20[^:]:%d:%10s", alg_name, &maxs,
- align) != 3)
- {
- error ("wrong argument %qs to option %qs", curr_range_str, opt);
- return;
- }
-
- if (n > 0 && (maxs < (input_ranges[n - 1].max + 1) && maxs != -1))
- {
- error ("size ranges of option %qs should be increasing", opt);
- return;
- }
-
- for (i = 0; i < last_alg; i++)
- if (!strcmp (alg_name, stringop_alg_names[i]))
- break;
-
- if (i == last_alg)
- {
- error ("wrong strategy name %qs specified for option %qs",
- alg_name, opt);
-
- auto_vec <const char *> candidates;
- for (i = 0; i < last_alg; i++)
- if ((stringop_alg) i != rep_prefix_8_byte || TARGET_64BIT)
- candidates.safe_push (stringop_alg_names[i]);
-
- char *s;
- const char *hint
- = candidates_list_and_hint (alg_name, s, candidates);
- if (hint)
- inform (input_location,
- "valid arguments to %qs are: %s; did you mean %qs?",
- opt, s, hint);
- else
- inform (input_location, "valid arguments to %qs are: %s",
- opt, s);
- XDELETEVEC (s);
- return;
- }
-
- if ((stringop_alg) i == rep_prefix_8_byte
- && !TARGET_64BIT)
- {
- /* rep; movq isn't available in 32-bit code. */
- error ("strategy name %qs specified for option %qs "
- "not supported for 32-bit code", alg_name, opt);
- return;
- }
-
- input_ranges[n].max = maxs;
- input_ranges[n].alg = (stringop_alg) i;
- if (!strcmp (align, "align"))
- input_ranges[n].noalign = false;
- else if (!strcmp (align, "noalign"))
- input_ranges[n].noalign = true;
- else
- {
- error ("unknown alignment %qs specified for option %qs", align, opt);
- return;
- }
- n++;
- curr_range_str = next_range_str;
- }
- while (curr_range_str);
-
- if (input_ranges[n - 1].max != -1)
- {
- error ("the max value for the last size range should be -1"
- " for option %qs", opt);
- return;
- }
-
- if (n > MAX_STRINGOP_ALGS)
- {
- error ("too many size ranges specified in option %qs", opt);
- return;
- }
-
- /* Now override the default algs array. */
- for (i = 0; i < n; i++)
- {
- *const_cast<int *>(&default_algs->size[i].max) = input_ranges[i].max;
- *const_cast<stringop_alg *>(&default_algs->size[i].alg)
- = input_ranges[i].alg;
- *const_cast<int *>(&default_algs->size[i].noalign)
- = input_ranges[i].noalign;
- }
-}
-
-\f
-/* parse -mtune-ctrl= option. When DUMP is true,
- print the features that are explicitly set. */
-
-static void
-parse_mtune_ctrl_str (struct gcc_options *opts, bool dump)
-{
- if (!opts->x_ix86_tune_ctrl_string)
- return;
-
- char *next_feature_string = NULL;
- char *curr_feature_string = xstrdup (opts->x_ix86_tune_ctrl_string);
- char *orig = curr_feature_string;
- int i;
- do
- {
- bool clear = false;
-
- next_feature_string = strchr (curr_feature_string, ',');
- if (next_feature_string)
- *next_feature_string++ = '\0';
- if (*curr_feature_string == '^')
- {
- curr_feature_string++;
- clear = true;
- }
- for (i = 0; i < X86_TUNE_LAST; i++)
- {
- if (!strcmp (curr_feature_string, ix86_tune_feature_names[i]))
- {
- ix86_tune_features[i] = !clear;
- if (dump)
- fprintf (stderr, "Explicitly %s feature %s\n",
- clear ? "clear" : "set", ix86_tune_feature_names[i]);
- break;
- }
- }
- if (i == X86_TUNE_LAST)
- error ("unknown parameter to option %<-mtune-ctrl%>: %s",
- clear ? curr_feature_string - 1 : curr_feature_string);
- curr_feature_string = next_feature_string;
- }
- while (curr_feature_string);
- free (orig);
-}
-
-/* Helper function to set ix86_tune_features. IX86_TUNE is the
- processor type. */
-
-static void
-set_ix86_tune_features (struct gcc_options *opts,
- enum processor_type ix86_tune, bool dump)
-{
- unsigned HOST_WIDE_INT ix86_tune_mask = HOST_WIDE_INT_1U << ix86_tune;
- int i;
-
- for (i = 0; i < X86_TUNE_LAST; ++i)
- {
- if (ix86_tune_no_default)
- ix86_tune_features[i] = 0;
- else
- ix86_tune_features[i]
- = !!(initial_ix86_tune_features[i] & ix86_tune_mask);
- }
-
- if (dump)
- {
- fprintf (stderr, "List of x86 specific tuning parameter names:\n");
- for (i = 0; i < X86_TUNE_LAST; i++)
- fprintf (stderr, "%s : %s\n", ix86_tune_feature_names[i],
- ix86_tune_features[i] ? "on" : "off");
- }
-
- parse_mtune_ctrl_str (opts, dump);
-}
-
-
-/* Default align_* from the processor table. */
-
-static void
-ix86_default_align (struct gcc_options *opts)
-{
- /* -falign-foo without argument: supply one. */
- if (opts->x_flag_align_loops && !opts->x_str_align_loops)
- opts->x_str_align_loops = processor_cost_table[ix86_tune]->align_loop;
- if (opts->x_flag_align_jumps && !opts->x_str_align_jumps)
- opts->x_str_align_jumps = processor_cost_table[ix86_tune]->align_jump;
- if (opts->x_flag_align_labels && !opts->x_str_align_labels)
- opts->x_str_align_labels = processor_cost_table[ix86_tune]->align_label;
- if (opts->x_flag_align_functions && !opts->x_str_align_functions)
- opts->x_str_align_functions = processor_cost_table[ix86_tune]->align_func;
-}
-
-#ifndef USE_IX86_FRAME_POINTER
-#define USE_IX86_FRAME_POINTER 0
-#endif
-
-/* (Re)compute option overrides affected by optimization levels in
- target-specific ways. */
-
-static void
-ix86_recompute_optlev_based_flags (struct gcc_options *opts,
- struct gcc_options *opts_set)
-{
- /* Set the default values for switches whose default depends on TARGET_64BIT
- in case they weren't overwritten by command line options. */
- if (TARGET_64BIT_P (opts->x_ix86_isa_flags))
- {
- if (opts->x_optimize >= 1)
- SET_OPTION_IF_UNSET (opts, opts_set, flag_omit_frame_pointer,
- !USE_IX86_FRAME_POINTER);
- if (opts->x_flag_asynchronous_unwind_tables
- && TARGET_64BIT_MS_ABI)
- SET_OPTION_IF_UNSET (opts, opts_set, flag_unwind_tables, 1);
- if (opts->x_flag_asynchronous_unwind_tables == 2)
- opts->x_flag_unwind_tables
- = opts->x_flag_asynchronous_unwind_tables = 1;
- if (opts->x_flag_pcc_struct_return == 2)
- opts->x_flag_pcc_struct_return = 0;
- }
- else
- {
- if (opts->x_optimize >= 1)
- SET_OPTION_IF_UNSET (opts, opts_set, flag_omit_frame_pointer,
- !(USE_IX86_FRAME_POINTER || opts->x_optimize_size));
- if (opts->x_flag_asynchronous_unwind_tables == 2)
- opts->x_flag_asynchronous_unwind_tables = !USE_IX86_FRAME_POINTER;
- if (opts->x_flag_pcc_struct_return == 2)
- {
- /* Intel MCU psABI specifies that -freg-struct-return should
- be on. Instead of setting DEFAULT_PCC_STRUCT_RETURN to 1,
- we check -miamcu so that -freg-struct-return is always
- turned on if -miamcu is used. */
- if (TARGET_IAMCU_P (opts->x_target_flags))
- opts->x_flag_pcc_struct_return = 0;
- else
- opts->x_flag_pcc_struct_return = DEFAULT_PCC_STRUCT_RETURN;
- }
- }
-}
-
-/* Implement TARGET_OVERRIDE_OPTIONS_AFTER_CHANGE hook. */
-
-void
-ix86_override_options_after_change (void)
-{
- ix86_default_align (&global_options);
- ix86_recompute_optlev_based_flags (&global_options, &global_options_set);
-}
-
-/* Clear stack slot assignments remembered from previous functions.
- This is called from INIT_EXPANDERS once before RTL is emitted for each
- function. */
-
-static struct machine_function *
-ix86_init_machine_status (void)
-{
- struct machine_function *f;
-
- f = ggc_cleared_alloc<machine_function> ();
- f->call_abi = ix86_abi;
- f->stack_frame_required = true;
-
- return f;
-}
-
-/* Override various settings based on options. If MAIN_ARGS_P, the
- options are from the command line, otherwise they are from
- attributes. Return true if there's an error related to march
- option. */
-
-static bool
-ix86_option_override_internal (bool main_args_p,
- struct gcc_options *opts,
- struct gcc_options *opts_set)
-{
- int i;
- unsigned HOST_WIDE_INT ix86_arch_mask;
- const bool ix86_tune_specified = (opts->x_ix86_tune_string != NULL);
-
- /* -mrecip options. */
- static struct
- {
- const char *string; /* option name */
- unsigned int mask; /* mask bits to set */
- }
- const recip_options[] =
- {
- { "all", RECIP_MASK_ALL },
- { "none", RECIP_MASK_NONE },
- { "div", RECIP_MASK_DIV },
- { "sqrt", RECIP_MASK_SQRT },
- { "vec-div", RECIP_MASK_VEC_DIV },
- { "vec-sqrt", RECIP_MASK_VEC_SQRT },
- };
-
-
- /* Turn off both OPTION_MASK_ABI_64 and OPTION_MASK_ABI_X32 if
- TARGET_64BIT_DEFAULT is true and TARGET_64BIT is false. */
- if (TARGET_64BIT_DEFAULT && !TARGET_64BIT_P (opts->x_ix86_isa_flags))
- opts->x_ix86_isa_flags &= ~(OPTION_MASK_ABI_64 | OPTION_MASK_ABI_X32);
-#ifdef TARGET_BI_ARCH
- else
- {
-#if TARGET_BI_ARCH == 1
- /* When TARGET_BI_ARCH == 1, by default, OPTION_MASK_ABI_64
- is on and OPTION_MASK_ABI_X32 is off. We turn off
- OPTION_MASK_ABI_64 if OPTION_MASK_ABI_X32 is turned on by
- -mx32. */
- if (TARGET_X32_P (opts->x_ix86_isa_flags))
- opts->x_ix86_isa_flags &= ~OPTION_MASK_ABI_64;
-#else
- /* When TARGET_BI_ARCH == 2, by default, OPTION_MASK_ABI_X32 is
- on and OPTION_MASK_ABI_64 is off. We turn off
- OPTION_MASK_ABI_X32 if OPTION_MASK_ABI_64 is turned on by
- -m64 or OPTION_MASK_CODE16 is turned on by -m16. */
- if (TARGET_LP64_P (opts->x_ix86_isa_flags)
- || TARGET_16BIT_P (opts->x_ix86_isa_flags))
- opts->x_ix86_isa_flags &= ~OPTION_MASK_ABI_X32;
-#endif
- if (TARGET_64BIT_P (opts->x_ix86_isa_flags)
- && TARGET_IAMCU_P (opts->x_target_flags))
- sorry ("Intel MCU psABI isn%'t supported in %s mode",
- TARGET_X32_P (opts->x_ix86_isa_flags) ? "x32" : "64-bit");
- }
-#endif
-
- if (TARGET_X32_P (opts->x_ix86_isa_flags))
- {
- /* Always turn on OPTION_MASK_ISA_64BIT and turn off
- OPTION_MASK_ABI_64 for TARGET_X32. */
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_64BIT;
- opts->x_ix86_isa_flags &= ~OPTION_MASK_ABI_64;
- }
- else if (TARGET_16BIT_P (opts->x_ix86_isa_flags))
- opts->x_ix86_isa_flags &= ~(OPTION_MASK_ISA_64BIT
- | OPTION_MASK_ABI_X32
- | OPTION_MASK_ABI_64);
- else if (TARGET_LP64_P (opts->x_ix86_isa_flags))
- {
- /* Always turn on OPTION_MASK_ISA_64BIT and turn off
- OPTION_MASK_ABI_X32 for TARGET_LP64. */
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_64BIT;
- opts->x_ix86_isa_flags &= ~OPTION_MASK_ABI_X32;
- }
-
-#ifdef SUBTARGET_OVERRIDE_OPTIONS
- SUBTARGET_OVERRIDE_OPTIONS;
-#endif
-
-#ifdef SUBSUBTARGET_OVERRIDE_OPTIONS
- SUBSUBTARGET_OVERRIDE_OPTIONS;
-#endif
-
- /* -fPIC is the default for x86_64. */
- if (TARGET_MACHO && TARGET_64BIT_P (opts->x_ix86_isa_flags))
- opts->x_flag_pic = 2;
-
- /* Need to check -mtune=generic first. */
- if (opts->x_ix86_tune_string)
- {
- /* As special support for cross compilers we read -mtune=native
- as -mtune=generic. With native compilers we won't see the
- -mtune=native, as it was changed by the driver. */
- if (!strcmp (opts->x_ix86_tune_string, "native"))
- {
- opts->x_ix86_tune_string = "generic";
- }
- else if (!strcmp (opts->x_ix86_tune_string, "x86-64"))
- warning (OPT_Wdeprecated,
- main_args_p
- ? G_("%<-mtune=x86-64%> is deprecated; use %<-mtune=k8%> "
- "or %<-mtune=generic%> instead as appropriate")
- : G_("%<target(\"tune=x86-64\")%> is deprecated; use "
- "%<target(\"tune=k8\")%> or %<target(\"tune=generic\")%>"
- " instead as appropriate"));
- }
- else
- {
- if (opts->x_ix86_arch_string)
- opts->x_ix86_tune_string = opts->x_ix86_arch_string;
- if (!opts->x_ix86_tune_string)
- {
- opts->x_ix86_tune_string = processor_names[TARGET_CPU_DEFAULT];
- ix86_tune_defaulted = 1;
- }
-
- /* opts->x_ix86_tune_string is set to opts->x_ix86_arch_string
- or defaulted. We need to use a sensible tune option. */
- if (!strcmp (opts->x_ix86_tune_string, "x86-64"))
- {
- opts->x_ix86_tune_string = "generic";
- }
- }
-
- if (opts->x_ix86_stringop_alg == rep_prefix_8_byte
- && !TARGET_64BIT_P (opts->x_ix86_isa_flags))
- {
- /* rep; movq isn't available in 32-bit code. */
- error ("%<-mstringop-strategy=rep_8byte%> not supported for 32-bit code");
- opts->x_ix86_stringop_alg = no_stringop;
- }
-
- if (!opts->x_ix86_arch_string)
- opts->x_ix86_arch_string
- = TARGET_64BIT_P (opts->x_ix86_isa_flags)
- ? "x86-64" : SUBTARGET32_DEFAULT_CPU;
- else
- ix86_arch_specified = 1;
-
- if (opts_set->x_ix86_pmode)
- {
- if ((TARGET_LP64_P (opts->x_ix86_isa_flags)
- && opts->x_ix86_pmode == PMODE_SI)
- || (!TARGET_64BIT_P (opts->x_ix86_isa_flags)
- && opts->x_ix86_pmode == PMODE_DI))
- error ("address mode %qs not supported in the %s bit mode",
- TARGET_64BIT_P (opts->x_ix86_isa_flags) ? "short" : "long",
- TARGET_64BIT_P (opts->x_ix86_isa_flags) ? "64" : "32");
- }
- else
- opts->x_ix86_pmode = TARGET_LP64_P (opts->x_ix86_isa_flags)
- ? PMODE_DI : PMODE_SI;
-
- SET_OPTION_IF_UNSET (opts, opts_set, ix86_abi, DEFAULT_ABI);
-
- if (opts->x_ix86_abi == MS_ABI && TARGET_X32_P (opts->x_ix86_isa_flags))
- error ("%<-mabi=ms%> not supported with X32 ABI");
- gcc_assert (opts->x_ix86_abi == SYSV_ABI || opts->x_ix86_abi == MS_ABI);
-
- const char *abi_name = opts->x_ix86_abi == MS_ABI ? "ms" : "sysv";
- if ((opts->x_flag_sanitize & SANITIZE_USER_ADDRESS)
- && opts->x_ix86_abi != DEFAULT_ABI)
- error ("%<-mabi=%s%> not supported with %<-fsanitize=address%>", abi_name);
- if ((opts->x_flag_sanitize & SANITIZE_KERNEL_ADDRESS)
- && opts->x_ix86_abi != DEFAULT_ABI)
- error ("%<-mabi=%s%> not supported with %<-fsanitize=kernel-address%>",
- abi_name);
- if ((opts->x_flag_sanitize & SANITIZE_THREAD)
- && opts->x_ix86_abi != DEFAULT_ABI)
- error ("%<-mabi=%s%> not supported with %<-fsanitize=thread%>", abi_name);
-
- /* For targets using ms ABI enable ms-extensions, if not
- explicit turned off. For non-ms ABI we turn off this
- option. */
- SET_OPTION_IF_UNSET (opts, opts_set, flag_ms_extensions,
- (MS_ABI == DEFAULT_ABI));
-
- if (opts_set->x_ix86_cmodel)
- {
- switch (opts->x_ix86_cmodel)
- {
- case CM_SMALL:
- case CM_SMALL_PIC:
- if (opts->x_flag_pic)
- opts->x_ix86_cmodel = CM_SMALL_PIC;
- if (!TARGET_64BIT_P (opts->x_ix86_isa_flags))
- error ("code model %qs not supported in the %s bit mode",
- "small", "32");
- break;
-
- case CM_MEDIUM:
- case CM_MEDIUM_PIC:
- if (opts->x_flag_pic)
- opts->x_ix86_cmodel = CM_MEDIUM_PIC;
- if (!TARGET_64BIT_P (opts->x_ix86_isa_flags))
- error ("code model %qs not supported in the %s bit mode",
- "medium", "32");
- else if (TARGET_X32_P (opts->x_ix86_isa_flags))
- error ("code model %qs not supported in x32 mode",
- "medium");
- break;
-
- case CM_LARGE:
- case CM_LARGE_PIC:
- if (opts->x_flag_pic)
- opts->x_ix86_cmodel = CM_LARGE_PIC;
- if (!TARGET_64BIT_P (opts->x_ix86_isa_flags))
- error ("code model %qs not supported in the %s bit mode",
- "large", "32");
- else if (TARGET_X32_P (opts->x_ix86_isa_flags))
- error ("code model %qs not supported in x32 mode",
- "large");
- break;
-
- case CM_32:
- if (opts->x_flag_pic)
- error ("code model %s does not support PIC mode", "32");
- if (TARGET_64BIT_P (opts->x_ix86_isa_flags))
- error ("code model %qs not supported in the %s bit mode",
- "32", "64");
- break;
-
- case CM_KERNEL:
- if (opts->x_flag_pic)
- {
- error ("code model %s does not support PIC mode", "kernel");
- opts->x_ix86_cmodel = CM_32;
- }
- if (!TARGET_64BIT_P (opts->x_ix86_isa_flags))
- error ("code model %qs not supported in the %s bit mode",
- "kernel", "32");
- break;
-
- default:
- gcc_unreachable ();
- }
- }
- else
- {
- /* For TARGET_64BIT and MS_ABI, force pic on, in order to enable the
- use of rip-relative addressing. This eliminates fixups that
- would otherwise be needed if this object is to be placed in a
- DLL, and is essentially just as efficient as direct addressing. */
- if (TARGET_64BIT_P (opts->x_ix86_isa_flags)
- && (TARGET_RDOS || TARGET_PECOFF))
- opts->x_ix86_cmodel = CM_MEDIUM_PIC, opts->x_flag_pic = 1;
- else if (TARGET_64BIT_P (opts->x_ix86_isa_flags))
- opts->x_ix86_cmodel = opts->x_flag_pic ? CM_SMALL_PIC : CM_SMALL;
- else
- opts->x_ix86_cmodel = CM_32;
- }
- if (TARGET_MACHO && opts->x_ix86_asm_dialect == ASM_INTEL)
- {
- error ("%<-masm=intel%> not supported in this configuration");
- opts->x_ix86_asm_dialect = ASM_ATT;
- }
- if ((TARGET_64BIT_P (opts->x_ix86_isa_flags) != 0)
- != ((opts->x_ix86_isa_flags & OPTION_MASK_ISA_64BIT) != 0))
- sorry ("%i-bit mode not compiled in",
- (opts->x_ix86_isa_flags & OPTION_MASK_ISA_64BIT) ? 64 : 32);
-
- for (i = 0; i < pta_size; i++)
- if (! strcmp (opts->x_ix86_arch_string, processor_alias_table[i].name))
- {
- if (!strcmp (opts->x_ix86_arch_string, "generic"))
- {
- error (main_args_p
- ? G_("%<generic%> CPU can be used only for %<-mtune=%> "
- "switch")
- : G_("%<generic%> CPU can be used only for "
- "%<target(\"tune=\")%> attribute"));
- return false;
- }
- else if (!strcmp (opts->x_ix86_arch_string, "intel"))
- {
- error (main_args_p
- ? G_("%<intel%> CPU can be used only for %<-mtune=%> "
- "switch")
- : G_("%<intel%> CPU can be used only for "
- "%<target(\"tune=\")%> attribute"));
- return false;
- }
-
- if (TARGET_64BIT_P (opts->x_ix86_isa_flags)
- && !((processor_alias_table[i].flags & PTA_64BIT) != 0))
- {
- error ("CPU you selected does not support x86-64 "
- "instruction set");
- return false;
- }
-
- ix86_schedule = processor_alias_table[i].schedule;
- ix86_arch = processor_alias_table[i].processor;
- /* Default cpu tuning to the architecture. */
- ix86_tune = ix86_arch;
-
- if (((processor_alias_table[i].flags & PTA_MMX) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_MMX))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_MMX;
- if (((processor_alias_table[i].flags & PTA_3DNOW) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_3DNOW))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_3DNOW;
- if (((processor_alias_table[i].flags & PTA_3DNOW_A) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_3DNOW_A))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_3DNOW_A;
- if (((processor_alias_table[i].flags & PTA_SSE) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_SSE))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_SSE;
- if (((processor_alias_table[i].flags & PTA_SSE2) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_SSE2))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_SSE2;
- if (((processor_alias_table[i].flags & PTA_SSE3) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_SSE3))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_SSE3;
- if (((processor_alias_table[i].flags & PTA_SSSE3) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_SSSE3))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_SSSE3;
- if (((processor_alias_table[i].flags & PTA_SSE4_1) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_SSE4_1))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_SSE4_1;
- if (((processor_alias_table[i].flags & PTA_SSE4_2) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_SSE4_2))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_SSE4_2;
- if (((processor_alias_table[i].flags & PTA_AVX) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_AVX))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_AVX;
- if (((processor_alias_table[i].flags & PTA_AVX2) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_AVX2))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_AVX2;
- if (((processor_alias_table[i].flags & PTA_FMA) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_FMA))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_FMA;
- if (((processor_alias_table[i].flags & PTA_SSE4A) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_SSE4A))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_SSE4A;
- if (((processor_alias_table[i].flags & PTA_FMA4) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_FMA4))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_FMA4;
- if (((processor_alias_table[i].flags & PTA_XOP) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_XOP))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_XOP;
- if (((processor_alias_table[i].flags & PTA_LWP) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_LWP))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_LWP;
- if (((processor_alias_table[i].flags & PTA_ABM) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_ABM))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_ABM;
- if (((processor_alias_table[i].flags & PTA_BMI) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_BMI))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_BMI;
- if (((processor_alias_table[i].flags & (PTA_LZCNT | PTA_ABM)) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_LZCNT))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_LZCNT;
- if (((processor_alias_table[i].flags & PTA_TBM) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_TBM))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_TBM;
- if (((processor_alias_table[i].flags & PTA_BMI2) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_BMI2))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_BMI2;
- if (((processor_alias_table[i].flags & PTA_CX16) != 0)
- && !(opts->x_ix86_isa_flags2_explicit & OPTION_MASK_ISA2_CX16))
- opts->x_ix86_isa_flags2 |= OPTION_MASK_ISA2_CX16;
- if (((processor_alias_table[i].flags & (PTA_POPCNT | PTA_ABM)) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_POPCNT))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_POPCNT;
- if (!(TARGET_64BIT_P (opts->x_ix86_isa_flags)
- && ((processor_alias_table[i].flags & PTA_NO_SAHF) != 0))
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_SAHF))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_SAHF;
- if (((processor_alias_table[i].flags & PTA_MOVBE) != 0)
- && !(opts->x_ix86_isa_flags2_explicit & OPTION_MASK_ISA2_MOVBE))
- opts->x_ix86_isa_flags2 |= OPTION_MASK_ISA2_MOVBE;
- if (((processor_alias_table[i].flags & PTA_AES) != 0)
- && !(ix86_isa_flags_explicit & OPTION_MASK_ISA_AES))
- ix86_isa_flags |= OPTION_MASK_ISA_AES;
- if (((processor_alias_table[i].flags & PTA_SHA) != 0)
- && !(ix86_isa_flags_explicit & OPTION_MASK_ISA_SHA))
- ix86_isa_flags |= OPTION_MASK_ISA_SHA;
- if (((processor_alias_table[i].flags & PTA_PCLMUL) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_PCLMUL))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_PCLMUL;
- if (((processor_alias_table[i].flags & PTA_FSGSBASE) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_FSGSBASE))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_FSGSBASE;
- if (((processor_alias_table[i].flags & PTA_RDRND) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_RDRND))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_RDRND;
- if (((processor_alias_table[i].flags & PTA_F16C) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_F16C))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_F16C;
- if (((processor_alias_table[i].flags & PTA_RTM) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_RTM))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_RTM;
- if (((processor_alias_table[i].flags & PTA_HLE) != 0)
- && !(opts->x_ix86_isa_flags2_explicit & OPTION_MASK_ISA2_HLE))
- opts->x_ix86_isa_flags2 |= OPTION_MASK_ISA2_HLE;
- if (((processor_alias_table[i].flags & PTA_PRFCHW) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_PRFCHW))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_PRFCHW;
- if (((processor_alias_table[i].flags & PTA_RDSEED) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_RDSEED))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_RDSEED;
- if (((processor_alias_table[i].flags & PTA_ADX) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_ADX))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_ADX;
- if (((processor_alias_table[i].flags & PTA_FXSR) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_FXSR))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_FXSR;
- if (((processor_alias_table[i].flags & PTA_XSAVE) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_XSAVE))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_XSAVE;
- if (((processor_alias_table[i].flags & PTA_XSAVEOPT) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_XSAVEOPT))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_XSAVEOPT;
- if (((processor_alias_table[i].flags & PTA_AVX512F) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_AVX512F))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_AVX512F;
- if (((processor_alias_table[i].flags & PTA_AVX512ER) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_AVX512ER))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_AVX512ER;
- if (((processor_alias_table[i].flags & PTA_AVX512PF) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_AVX512PF))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_AVX512PF;
- if (((processor_alias_table[i].flags & PTA_AVX512CD) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_AVX512CD))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_AVX512CD;
- if (((processor_alias_table[i].flags & PTA_PREFETCHWT1) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_PREFETCHWT1))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_PREFETCHWT1;
- if (((processor_alias_table[i].flags & PTA_CLWB) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_CLWB))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_CLWB;
- if (((processor_alias_table[i].flags & PTA_CLFLUSHOPT) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_CLFLUSHOPT))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_CLFLUSHOPT;
- if (((processor_alias_table[i].flags & PTA_CLZERO) != 0)
- && !(opts->x_ix86_isa_flags2_explicit & OPTION_MASK_ISA2_CLZERO))
- opts->x_ix86_isa_flags2 |= OPTION_MASK_ISA2_CLZERO;
- if (((processor_alias_table[i].flags & PTA_XSAVEC) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_XSAVEC))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_XSAVEC;
- if (((processor_alias_table[i].flags & PTA_XSAVES) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_XSAVES))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_XSAVES;
- if (((processor_alias_table[i].flags & PTA_AVX512DQ) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_AVX512DQ))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_AVX512DQ;
- if (((processor_alias_table[i].flags & PTA_AVX512BW) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_AVX512BW))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_AVX512BW;
- if (((processor_alias_table[i].flags & PTA_AVX512VL) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_AVX512VL))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_AVX512VL;
- if (((processor_alias_table[i].flags & PTA_AVX512VBMI) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_AVX512VBMI))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_AVX512VBMI;
- if (((processor_alias_table[i].flags & PTA_AVX512IFMA) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_AVX512IFMA))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_AVX512IFMA;
- if (((processor_alias_table[i].flags & PTA_AVX512VNNI) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_AVX512VNNI))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_AVX512VNNI;
- if (((processor_alias_table[i].flags & PTA_GFNI) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_GFNI))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_GFNI;
- if (((processor_alias_table[i].flags & PTA_AVX512VBMI2) != 0)
- && !(opts->x_ix86_isa_flags_explicit
- & OPTION_MASK_ISA_AVX512VBMI2))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_AVX512VBMI2;
- if (((processor_alias_table[i].flags & PTA_VPCLMULQDQ) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_VPCLMULQDQ))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_VPCLMULQDQ;
- if (((processor_alias_table[i].flags & PTA_AVX512BITALG) != 0)
- && !(opts->x_ix86_isa_flags_explicit
- & OPTION_MASK_ISA_AVX512BITALG))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_AVX512BITALG;
-
- if (((processor_alias_table[i].flags & PTA_AVX512VP2INTERSECT) != 0)
- && !(opts->x_ix86_isa_flags2_explicit
- & OPTION_MASK_ISA2_AVX512VP2INTERSECT))
- opts->x_ix86_isa_flags2 |= OPTION_MASK_ISA2_AVX512VP2INTERSECT;
- if (((processor_alias_table[i].flags & PTA_AVX5124VNNIW) != 0)
- && !(opts->x_ix86_isa_flags2_explicit
- & OPTION_MASK_ISA2_AVX5124VNNIW))
- opts->x_ix86_isa_flags2 |= OPTION_MASK_ISA2_AVX5124VNNIW;
- if (((processor_alias_table[i].flags & PTA_AVX5124FMAPS) != 0)
- && !(opts->x_ix86_isa_flags2_explicit
- & OPTION_MASK_ISA2_AVX5124FMAPS))
- opts->x_ix86_isa_flags2 |= OPTION_MASK_ISA2_AVX5124FMAPS;
- if (((processor_alias_table[i].flags & PTA_AVX512VPOPCNTDQ) != 0)
- && !(opts->x_ix86_isa_flags_explicit
- & OPTION_MASK_ISA_AVX512VPOPCNTDQ))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_AVX512VPOPCNTDQ;
- if (((processor_alias_table[i].flags & PTA_AVX512BF16) != 0)
- && !(opts->x_ix86_isa_flags2_explicit
- & OPTION_MASK_ISA2_AVX512BF16))
- opts->x_ix86_isa_flags2 |= OPTION_MASK_ISA2_AVX512BF16;
- if (((processor_alias_table[i].flags & PTA_MOVDIRI) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_MOVDIRI))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_MOVDIRI;
- if (((processor_alias_table[i].flags & PTA_MOVDIR64B) != 0)
- && !(opts->x_ix86_isa_flags2_explicit & OPTION_MASK_ISA2_MOVDIR64B))
- opts->x_ix86_isa_flags2 |= OPTION_MASK_ISA2_MOVDIR64B;
- if (((processor_alias_table[i].flags & PTA_SGX) != 0)
- && !(opts->x_ix86_isa_flags2_explicit & OPTION_MASK_ISA2_SGX))
- opts->x_ix86_isa_flags2 |= OPTION_MASK_ISA2_SGX;
- if (((processor_alias_table[i].flags & PTA_VAES) != 0)
- && !(opts->x_ix86_isa_flags2_explicit & OPTION_MASK_ISA2_VAES))
- opts->x_ix86_isa_flags2 |= OPTION_MASK_ISA2_VAES;
- if (((processor_alias_table[i].flags & PTA_RDPID) != 0)
- && !(opts->x_ix86_isa_flags2_explicit & OPTION_MASK_ISA2_RDPID))
- opts->x_ix86_isa_flags2 |= OPTION_MASK_ISA2_RDPID;
- if (((processor_alias_table[i].flags & PTA_PCONFIG) != 0)
- && !(opts->x_ix86_isa_flags2_explicit & OPTION_MASK_ISA2_PCONFIG))
- opts->x_ix86_isa_flags2 |= OPTION_MASK_ISA2_PCONFIG;
- if (((processor_alias_table[i].flags & PTA_WBNOINVD) != 0)
- && !(opts->x_ix86_isa_flags2_explicit & OPTION_MASK_ISA2_WBNOINVD))
- opts->x_ix86_isa_flags2 |= OPTION_MASK_ISA2_WBNOINVD;
- if (((processor_alias_table[i].flags & PTA_PTWRITE) != 0)
- && !(opts->x_ix86_isa_flags2_explicit & OPTION_MASK_ISA2_PTWRITE))
- opts->x_ix86_isa_flags2 |= OPTION_MASK_ISA2_PTWRITE;
-
- if ((processor_alias_table[i].flags
- & (PTA_PREFETCH_SSE | PTA_SSE)) != 0)
- x86_prefetch_sse = true;
- if (((processor_alias_table[i].flags & PTA_MWAITX) != 0)
- && !(opts->x_ix86_isa_flags2_explicit & OPTION_MASK_ISA2_MWAITX))
- opts->x_ix86_isa_flags2 |= OPTION_MASK_ISA2_MWAITX;
- if (((processor_alias_table[i].flags & PTA_PKU) != 0)
- && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_PKU))
- opts->x_ix86_isa_flags |= OPTION_MASK_ISA_PKU;
-
- /* Don't enable x87 instructions if only
- general registers are allowed. */
- if (!(opts_set->x_ix86_target_flags & OPTION_MASK_GENERAL_REGS_ONLY)
- && !(opts_set->x_target_flags & MASK_80387))
- {
- if (((processor_alias_table[i].flags & PTA_NO_80387) != 0))
- opts->x_target_flags &= ~MASK_80387;
- else
- opts->x_target_flags |= MASK_80387;
- }
- break;
- }
-
- if (i == pta_size)
- {
- error (main_args_p
- ? G_("bad value (%qs) for %<-march=%> switch")
- : G_("bad value (%qs) for %<target(\"arch=\")%> attribute"),
- opts->x_ix86_arch_string);
-
- auto_vec <const char *> candidates;
- for (i = 0; i < pta_size; i++)
- if (strcmp (processor_alias_table[i].name, "generic")
- && strcmp (processor_alias_table[i].name, "intel")
- && (!TARGET_64BIT_P (opts->x_ix86_isa_flags)
- || ((processor_alias_table[i].flags & PTA_64BIT) != 0)))
- candidates.safe_push (processor_alias_table[i].name);
-
-#ifdef HAVE_LOCAL_CPU_DETECT
- /* Add also "native" as possible value. */
- candidates.safe_push ("native");
-#endif
-
- char *s;
- const char *hint
- = candidates_list_and_hint (opts->x_ix86_arch_string, s, candidates);
- if (hint)
- inform (input_location,
- main_args_p
- ? G_("valid arguments to %<-march=%> switch are: "
- "%s; did you mean %qs?")
- : G_("valid arguments to %<target(\"arch=\")%> attribute are: "
- "%s; did you mean %qs?"), s, hint);
- else
- inform (input_location,
- main_args_p
- ? G_("valid arguments to %<-march=%> switch are: %s")
- : G_("valid arguments to %<target(\"arch=\")%> attribute "
- "are: %s"), s);
- XDELETEVEC (s);
- }
-
- ix86_arch_mask = HOST_WIDE_INT_1U << ix86_arch;
- for (i = 0; i < X86_ARCH_LAST; ++i)
- ix86_arch_features[i] = !!(initial_ix86_arch_features[i] & ix86_arch_mask);
-
- for (i = 0; i < pta_size; i++)
- if (! strcmp (opts->x_ix86_tune_string, processor_alias_table[i].name))
- {
- ix86_schedule = processor_alias_table[i].schedule;
- ix86_tune = processor_alias_table[i].processor;
- if (TARGET_64BIT_P (opts->x_ix86_isa_flags))
- {
- if (!((processor_alias_table[i].flags & PTA_64BIT) != 0))
- {
- if (ix86_tune_defaulted)
- {
- opts->x_ix86_tune_string = "x86-64";
- for (i = 0; i < pta_size; i++)
- if (! strcmp (opts->x_ix86_tune_string,
- processor_alias_table[i].name))
- break;
- ix86_schedule = processor_alias_table[i].schedule;
- ix86_tune = processor_alias_table[i].processor;
- }
- else
- error ("CPU you selected does not support x86-64 "
- "instruction set");
- }
- }
- /* Intel CPUs have always interpreted SSE prefetch instructions as
- NOPs; so, we can enable SSE prefetch instructions even when
- -mtune (rather than -march) points us to a processor that has them.
- However, the VIA C3 gives a SIGILL, so we only do that for i686 and
- higher processors. */
- if (TARGET_CMOV
- && ((processor_alias_table[i].flags
- & (PTA_PREFETCH_SSE | PTA_SSE)) != 0))
- x86_prefetch_sse = true;
- break;
- }
-
- if (ix86_tune_specified && i == pta_size)
- {
- error (main_args_p
- ? G_("bad value (%qs) for %<-mtune=%> switch")
- : G_("bad value (%qs) for %<target(\"tune=\")%> attribute"),
- opts->x_ix86_tune_string);
-
- auto_vec <const char *> candidates;
- for (i = 0; i < pta_size; i++)
- if (!TARGET_64BIT_P (opts->x_ix86_isa_flags)
- || ((processor_alias_table[i].flags & PTA_64BIT) != 0))
- candidates.safe_push (processor_alias_table[i].name);
-
-#ifdef HAVE_LOCAL_CPU_DETECT
- /* Add also "native" as possible value. */
- candidates.safe_push ("native");
-#endif
-
- char *s;
- const char *hint
- = candidates_list_and_hint (opts->x_ix86_tune_string, s, candidates);
- if (hint)
- inform (input_location,
- main_args_p
- ? G_("valid arguments to %<-mtune=%> switch are: "
- "%s; did you mean %qs?")
- : G_("valid arguments to %<target(\"tune=\")%> attribute are: "
- "%s; did you mean %qs?"), s, hint);
- else
- inform (input_location,
- main_args_p
- ? G_("valid arguments to %<-mtune=%> switch are: %s")
- : G_("valid arguments to %<target(\"tune=\")%> attribute "
- "are: %s"), s);
- XDELETEVEC (s);
- }
-
- set_ix86_tune_features (opts, ix86_tune, opts->x_ix86_dump_tunes);
-
- ix86_recompute_optlev_based_flags (opts, opts_set);
-
- ix86_tune_cost = processor_cost_table[ix86_tune];
- /* TODO: ix86_cost should be chosen at instruction or function granuality
- so for cold code we use size_cost even in !optimize_size compilation. */
- if (opts->x_optimize_size)
- ix86_cost = &ix86_size_cost;
- else
- ix86_cost = ix86_tune_cost;
-
- /* Arrange to set up i386_stack_locals for all functions. */
- init_machine_status = ix86_init_machine_status;
-
- /* Validate -mregparm= value. */
- if (opts_set->x_ix86_regparm)
- {
- if (TARGET_64BIT_P (opts->x_ix86_isa_flags))
- warning (0, "%<-mregparm%> is ignored in 64-bit mode");
- else if (TARGET_IAMCU_P (opts->x_target_flags))
- warning (0, "%<-mregparm%> is ignored for Intel MCU psABI");
- if (opts->x_ix86_regparm > REGPARM_MAX)
- {
- error ("%<-mregparm=%d%> is not between 0 and %d",
- opts->x_ix86_regparm, REGPARM_MAX);
- opts->x_ix86_regparm = 0;
- }
- }
- if (TARGET_IAMCU_P (opts->x_target_flags)
- || TARGET_64BIT_P (opts->x_ix86_isa_flags))
- opts->x_ix86_regparm = REGPARM_MAX;
-
- /* Default align_* from the processor table. */
- ix86_default_align (opts);
-
- /* Provide default for -mbranch-cost= value. */
- SET_OPTION_IF_UNSET (opts, opts_set, ix86_branch_cost,
- ix86_tune_cost->branch_cost);
-
- if (TARGET_64BIT_P (opts->x_ix86_isa_flags))
- {
- opts->x_target_flags
- |= TARGET_SUBTARGET64_DEFAULT & ~opts_set->x_target_flags;
-
- if (!ix86_arch_specified)
- opts->x_ix86_isa_flags
- |= TARGET_SUBTARGET64_ISA_DEFAULT & ~opts->x_ix86_isa_flags_explicit;
-
- if (TARGET_RTD_P (opts->x_target_flags))
- warning (0,
- main_args_p
- ? G_("%<-mrtd%> is ignored in 64bit mode")
- : G_("%<target(\"rtd\")%> is ignored in 64bit mode"));
- }
- else
- {
- opts->x_target_flags
- |= TARGET_SUBTARGET32_DEFAULT & ~opts_set->x_target_flags;
-
- if (!ix86_arch_specified)
- opts->x_ix86_isa_flags
- |= TARGET_SUBTARGET32_ISA_DEFAULT & ~opts->x_ix86_isa_flags_explicit;
-
- /* i386 ABI does not specify red zone. It still makes sense to use it
- when programmer takes care to stack from being destroyed. */
- if (!(opts_set->x_target_flags & MASK_NO_RED_ZONE))
- opts->x_target_flags |= MASK_NO_RED_ZONE;
- }
-
- /* Keep nonleaf frame pointers. */
- if (opts->x_flag_omit_frame_pointer)
- opts->x_target_flags &= ~MASK_OMIT_LEAF_FRAME_POINTER;
- else if (TARGET_OMIT_LEAF_FRAME_POINTER_P (opts->x_target_flags))
- opts->x_flag_omit_frame_pointer = 1;
-
- /* If we're doing fast math, we don't care about comparison order
- wrt NaNs. This lets us use a shorter comparison sequence. */
- if (opts->x_flag_finite_math_only)
- opts->x_target_flags &= ~MASK_IEEE_FP;
-
- /* If the architecture always has an FPU, turn off NO_FANCY_MATH_387,
- since the insns won't need emulation. */
- if (ix86_tune_features [X86_TUNE_ALWAYS_FANCY_MATH_387])
- opts->x_target_flags &= ~MASK_NO_FANCY_MATH_387;
-
- /* Likewise, if the target doesn't have a 387, or we've specified
- software floating point, don't use 387 inline intrinsics. */
- if (!TARGET_80387_P (opts->x_target_flags))
- opts->x_target_flags |= MASK_NO_FANCY_MATH_387;
-
- /* Turn on MMX builtins for -msse. */
- if (TARGET_SSE_P (opts->x_ix86_isa_flags))
- opts->x_ix86_isa_flags
- |= OPTION_MASK_ISA_MMX & ~opts->x_ix86_isa_flags_explicit;
-
- /* Enable SSE prefetch. */
- if (TARGET_SSE_P (opts->x_ix86_isa_flags)
- || (TARGET_PRFCHW_P (opts->x_ix86_isa_flags)
- && !TARGET_3DNOW_P (opts->x_ix86_isa_flags))
- || TARGET_PREFETCHWT1_P (opts->x_ix86_isa_flags))
- x86_prefetch_sse = true;
-
- /* Enable popcnt instruction for -msse4.2 or -mabm. */
- if (TARGET_SSE4_2_P (opts->x_ix86_isa_flags)
- || TARGET_ABM_P (opts->x_ix86_isa_flags))
- opts->x_ix86_isa_flags
- |= OPTION_MASK_ISA_POPCNT & ~opts->x_ix86_isa_flags_explicit;
-
- /* Enable lzcnt instruction for -mabm. */
- if (TARGET_ABM_P(opts->x_ix86_isa_flags))
- opts->x_ix86_isa_flags
- |= OPTION_MASK_ISA_LZCNT & ~opts->x_ix86_isa_flags_explicit;
-
- /* Disable BMI, BMI2 and TBM instructions for -m16. */
- if (TARGET_16BIT_P(opts->x_ix86_isa_flags))
- opts->x_ix86_isa_flags
- &= ~((OPTION_MASK_ISA_BMI | OPTION_MASK_ISA_BMI2 | OPTION_MASK_ISA_TBM)
- & ~opts->x_ix86_isa_flags_explicit);
-
- /* Validate -mpreferred-stack-boundary= value or default it to
- PREFERRED_STACK_BOUNDARY_DEFAULT. */
- ix86_preferred_stack_boundary = PREFERRED_STACK_BOUNDARY_DEFAULT;
- if (opts_set->x_ix86_preferred_stack_boundary_arg)
- {
- int min = TARGET_64BIT_P (opts->x_ix86_isa_flags)? 3 : 2;
- int max = TARGET_SEH ? 4 : 12;
-
- if (opts->x_ix86_preferred_stack_boundary_arg < min
- || opts->x_ix86_preferred_stack_boundary_arg > max)
- {
- if (min == max)
- error ("%<-mpreferred-stack-boundary%> is not supported "
- "for this target");
- else
- error ("%<-mpreferred-stack-boundary=%d%> is not between %d and %d",
- opts->x_ix86_preferred_stack_boundary_arg, min, max);
- }
- else
- ix86_preferred_stack_boundary
- = (1 << opts->x_ix86_preferred_stack_boundary_arg) * BITS_PER_UNIT;
- }
-
- /* Set the default value for -mstackrealign. */
- SET_OPTION_IF_UNSET (opts, opts_set, ix86_force_align_arg_pointer,
- STACK_REALIGN_DEFAULT);
-
- ix86_default_incoming_stack_boundary = PREFERRED_STACK_BOUNDARY;
-
- /* Validate -mincoming-stack-boundary= value or default it to
- MIN_STACK_BOUNDARY/PREFERRED_STACK_BOUNDARY. */
- ix86_incoming_stack_boundary = ix86_default_incoming_stack_boundary;
- if (opts_set->x_ix86_incoming_stack_boundary_arg)
- {
- int min = TARGET_64BIT_P (opts->x_ix86_isa_flags) ? 3 : 2;
-
- if (opts->x_ix86_incoming_stack_boundary_arg < min
- || opts->x_ix86_incoming_stack_boundary_arg > 12)
- error ("%<-mincoming-stack-boundary=%d%> is not between %d and 12",
- opts->x_ix86_incoming_stack_boundary_arg, min);
- else
- {
- ix86_user_incoming_stack_boundary
- = (1 << opts->x_ix86_incoming_stack_boundary_arg) * BITS_PER_UNIT;
- ix86_incoming_stack_boundary
- = ix86_user_incoming_stack_boundary;
- }
- }
-
-#ifndef NO_PROFILE_COUNTERS
- if (flag_nop_mcount)
- error ("%<-mnop-mcount%> is not compatible with this target");
-#endif
- if (flag_nop_mcount && flag_pic)
- error ("%<-mnop-mcount%> is not implemented for %<-fPIC%>");
-
- /* Accept -msseregparm only if at least SSE support is enabled. */
- if (TARGET_SSEREGPARM_P (opts->x_target_flags)
- && ! TARGET_SSE_P (opts->x_ix86_isa_flags))
- error (main_args_p
- ? G_("%<-msseregparm%> used without SSE enabled")
- : G_("%<target(\"sseregparm\")%> used without SSE enabled"));
-
- if (opts_set->x_ix86_fpmath)
- {
- if (opts->x_ix86_fpmath & FPMATH_SSE)
- {
- if (!TARGET_SSE_P (opts->x_ix86_isa_flags))
- {
- if (TARGET_80387_P (opts->x_target_flags))
- {
- warning (0, "SSE instruction set disabled, using 387 arithmetics");
- opts->x_ix86_fpmath = FPMATH_387;
- }
- }
- else if ((opts->x_ix86_fpmath & FPMATH_387)
- && !TARGET_80387_P (opts->x_target_flags))
- {
- warning (0, "387 instruction set disabled, using SSE arithmetics");
- opts->x_ix86_fpmath = FPMATH_SSE;
- }
- }
- }
- /* For all chips supporting SSE2, -mfpmath=sse performs better than
- fpmath=387. The second is however default at many targets since the
- extra 80bit precision of temporaries is considered to be part of ABI.
- Overwrite the default at least for -ffast-math.
- TODO: -mfpmath=both seems to produce same performing code with bit
- smaller binaries. It is however not clear if register allocation is
- ready for this setting.
- Also -mfpmath=387 is overall a lot more compact (bout 4-5%) than SSE
- codegen. We may switch to 387 with -ffast-math for size optimized
- functions. */
- else if (fast_math_flags_set_p (&global_options)
- && TARGET_SSE2_P (opts->x_ix86_isa_flags))
- opts->x_ix86_fpmath = FPMATH_SSE;
- else
- opts->x_ix86_fpmath = TARGET_FPMATH_DEFAULT_P (opts->x_ix86_isa_flags);
-
- /* Use external vectorized library in vectorizing intrinsics. */
- if (opts_set->x_ix86_veclibabi_type)
- switch (opts->x_ix86_veclibabi_type)
- {
- case ix86_veclibabi_type_svml:
- ix86_veclib_handler = &ix86_veclibabi_svml;
- break;
-
- case ix86_veclibabi_type_acml:
- ix86_veclib_handler = &ix86_veclibabi_acml;
- break;
-
- default:
- gcc_unreachable ();
- }
-
- if (ix86_tune_features [X86_TUNE_ACCUMULATE_OUTGOING_ARGS]
- && !(opts_set->x_target_flags & MASK_ACCUMULATE_OUTGOING_ARGS))
- opts->x_target_flags |= MASK_ACCUMULATE_OUTGOING_ARGS;
-
- /* If stack probes are required, the space used for large function
- arguments on the stack must also be probed, so enable
- -maccumulate-outgoing-args so this happens in the prologue. */
- if (TARGET_STACK_PROBE_P (opts->x_target_flags)
- && !(opts->x_target_flags & MASK_ACCUMULATE_OUTGOING_ARGS))
- {
- if (opts_set->x_target_flags & MASK_ACCUMULATE_OUTGOING_ARGS)
- warning (0,
- main_args_p
- ? G_("stack probing requires %<-maccumulate-outgoing-args%> "
- "for correctness")
- : G_("stack probing requires "
- "%<target(\"accumulate-outgoing-args\")%> for "
- "correctness"));
- opts->x_target_flags |= MASK_ACCUMULATE_OUTGOING_ARGS;
- }
-
- /* Stack realignment without -maccumulate-outgoing-args requires %ebp,
- so enable -maccumulate-outgoing-args when %ebp is fixed. */
- if (fixed_regs[BP_REG]
- && !(opts->x_target_flags & MASK_ACCUMULATE_OUTGOING_ARGS))
- {
- if (opts_set->x_target_flags & MASK_ACCUMULATE_OUTGOING_ARGS)
- warning (0,
- main_args_p
- ? G_("fixed ebp register requires "
- "%<-maccumulate-outgoing-args%>")
- : G_("fixed ebp register requires "
- "%<target(\"accumulate-outgoing-args\")%>"));
- opts->x_target_flags |= MASK_ACCUMULATE_OUTGOING_ARGS;
- }
-
- /* Figure out what ASM_GENERATE_INTERNAL_LABEL builds as a prefix. */
- {
- char *p;
- ASM_GENERATE_INTERNAL_LABEL (internal_label_prefix, "LX", 0);
- p = strchr (internal_label_prefix, 'X');
- internal_label_prefix_len = p - internal_label_prefix;
- *p = '\0';
- }
-
- /* When scheduling description is not available, disable scheduler pass
- so it won't slow down the compilation and make x87 code slower. */
- if (!TARGET_SCHEDULE)
- opts->x_flag_schedule_insns_after_reload = opts->x_flag_schedule_insns = 0;
-
- SET_OPTION_IF_UNSET (opts, opts_set, param_simultaneous_prefetches,
- ix86_tune_cost->simultaneous_prefetches);
- SET_OPTION_IF_UNSET (opts, opts_set, param_l1_cache_line_size,
- ix86_tune_cost->prefetch_block);
- SET_OPTION_IF_UNSET (opts, opts_set, param_l1_cache_size,
- ix86_tune_cost->l1_cache_size);
- SET_OPTION_IF_UNSET (opts, opts_set, param_l2_cache_size,
- ix86_tune_cost->l2_cache_size);
-
- /* Enable sw prefetching at -O3 for CPUS that prefetching is helpful. */
- if (opts->x_flag_prefetch_loop_arrays < 0
- && HAVE_prefetch
- && (opts->x_optimize >= 3 || opts->x_flag_profile_use)
- && !opts->x_optimize_size
- && TARGET_SOFTWARE_PREFETCHING_BENEFICIAL)
- opts->x_flag_prefetch_loop_arrays = 1;
-
- /* If using typedef char *va_list, signal that __builtin_va_start (&ap, 0)
- can be opts->x_optimized to ap = __builtin_next_arg (0). */
- if (!TARGET_64BIT_P (opts->x_ix86_isa_flags) && !opts->x_flag_split_stack)
- targetm.expand_builtin_va_start = NULL;
-
-#ifdef USE_IX86_CLD
- /* Use -mcld by default for 32-bit code if configured with --enable-cld. */
- if (!TARGET_64BIT_P (opts->x_ix86_isa_flags))
- opts->x_target_flags |= MASK_CLD & ~opts_set->x_target_flags;
-#endif
-
- /* Set the default value for -mfentry. */
- if (!opts_set->x_flag_fentry)
- opts->x_flag_fentry = TARGET_SEH;
- else
- {
- if (!TARGET_64BIT_P (opts->x_ix86_isa_flags) && opts->x_flag_pic
- && opts->x_flag_fentry)
- sorry ("%<-mfentry%> isn%'t supported for 32-bit in combination "
- "with %<-fpic%>");
- else if (TARGET_SEH && !opts->x_flag_fentry)
- sorry ("%<-mno-fentry%> isn%'t compatible with SEH");
- }
-
- if (TARGET_SEH && TARGET_CALL_MS2SYSV_XLOGUES)
- sorry ("%<-mcall-ms2sysv-xlogues%> isn%'t currently supported with SEH");
-
- if (!(opts_set->x_target_flags & MASK_VZEROUPPER)
- && TARGET_EMIT_VZEROUPPER)
- opts->x_target_flags |= MASK_VZEROUPPER;
- if (!(opts_set->x_target_flags & MASK_STV))
- opts->x_target_flags |= MASK_STV;
- /* Disable STV if -mpreferred-stack-boundary={2,3} or
- -mincoming-stack-boundary={2,3} or -mstackrealign - the needed
- stack realignment will be extra cost the pass doesn't take into
- account and the pass can't realign the stack. */
- if (ix86_preferred_stack_boundary < 128
- || ix86_incoming_stack_boundary < 128
- || opts->x_ix86_force_align_arg_pointer)
- opts->x_target_flags &= ~MASK_STV;
- if (!ix86_tune_features[X86_TUNE_AVX256_UNALIGNED_LOAD_OPTIMAL]
- && !(opts_set->x_target_flags & MASK_AVX256_SPLIT_UNALIGNED_LOAD))
- opts->x_target_flags |= MASK_AVX256_SPLIT_UNALIGNED_LOAD;
- if (!ix86_tune_features[X86_TUNE_AVX256_UNALIGNED_STORE_OPTIMAL]
- && !(opts_set->x_target_flags & MASK_AVX256_SPLIT_UNALIGNED_STORE))
- opts->x_target_flags |= MASK_AVX256_SPLIT_UNALIGNED_STORE;
-
- /* Enable 128-bit AVX instruction generation
- for the auto-vectorizer. */
- if (ix86_tune_features[X86_TUNE_AVX128_OPTIMAL]
- && (opts_set->x_prefer_vector_width_type == PVW_NONE))
- opts->x_prefer_vector_width_type = PVW_AVX128;
-
- /* Use 256-bit AVX instruction generation
- in the auto-vectorizer. */
- if (ix86_tune_features[X86_TUNE_AVX256_OPTIMAL]
- && (opts_set->x_prefer_vector_width_type == PVW_NONE))
- opts->x_prefer_vector_width_type = PVW_AVX256;
-
- if (opts->x_ix86_recip_name)
- {
- char *p = ASTRDUP (opts->x_ix86_recip_name);
- char *q;
- unsigned int mask, i;
- bool invert;
-
- while ((q = strtok (p, ",")) != NULL)
- {
- p = NULL;
- if (*q == '!')
- {
- invert = true;
- q++;
- }
- else
- invert = false;
-
- if (!strcmp (q, "default"))
- mask = RECIP_MASK_ALL;
- else
- {
- for (i = 0; i < ARRAY_SIZE (recip_options); i++)
- if (!strcmp (q, recip_options[i].string))
- {
- mask = recip_options[i].mask;
- break;
- }
-
- if (i == ARRAY_SIZE (recip_options))
- {
- error ("unknown option for %<-mrecip=%s%>", q);
- invert = false;
- mask = RECIP_MASK_NONE;
- }
- }
-
- opts->x_recip_mask_explicit |= mask;
- if (invert)
- opts->x_recip_mask &= ~mask;
- else
- opts->x_recip_mask |= mask;
- }
- }
-
- if (TARGET_RECIP_P (opts->x_target_flags))
- opts->x_recip_mask |= RECIP_MASK_ALL & ~opts->x_recip_mask_explicit;
- else if (opts_set->x_target_flags & MASK_RECIP)
- opts->x_recip_mask &= ~(RECIP_MASK_ALL & ~opts->x_recip_mask_explicit);
-
- /* Default long double to 64-bit for 32-bit Bionic and to __float128
- for 64-bit Bionic. Also default long double to 64-bit for Intel
- MCU psABI. */
- if ((TARGET_HAS_BIONIC || TARGET_IAMCU)
- && !(opts_set->x_target_flags
- & (MASK_LONG_DOUBLE_64 | MASK_LONG_DOUBLE_128)))
- opts->x_target_flags |= (TARGET_64BIT
- ? MASK_LONG_DOUBLE_128
- : MASK_LONG_DOUBLE_64);
-
- /* Only one of them can be active. */
- gcc_assert ((opts->x_target_flags & MASK_LONG_DOUBLE_64) == 0
- || (opts->x_target_flags & MASK_LONG_DOUBLE_128) == 0);
-
- /* Handle stack protector */
- if (!opts_set->x_ix86_stack_protector_guard)
- {
-#ifdef TARGET_THREAD_SSP_OFFSET
- if (!TARGET_HAS_BIONIC)
- opts->x_ix86_stack_protector_guard = SSP_TLS;
- else
-#endif
- opts->x_ix86_stack_protector_guard = SSP_GLOBAL;
- }
-
- if (opts_set->x_ix86_stack_protector_guard_offset_str)
- {
- char *endp;
- const char *str = opts->x_ix86_stack_protector_guard_offset_str;
-
- errno = 0;
- int64_t offset;
-
-#if defined(INT64_T_IS_LONG)
- offset = strtol (str, &endp, 0);
-#else
- offset = strtoll (str, &endp, 0);
-#endif
-
- if (!*str || *endp || errno)
- error ("%qs is not a valid number "
- "in %<-mstack-protector-guard-offset=%>", str);
-
- if (!IN_RANGE (offset, HOST_WIDE_INT_C (-0x80000000),
- HOST_WIDE_INT_C (0x7fffffff)))
- error ("%qs is not a valid offset "
- "in %<-mstack-protector-guard-offset=%>", str);
-
- opts->x_ix86_stack_protector_guard_offset = offset;
- }
-#ifdef TARGET_THREAD_SSP_OFFSET
- else
- opts->x_ix86_stack_protector_guard_offset = TARGET_THREAD_SSP_OFFSET;
-#endif
-
- if (opts_set->x_ix86_stack_protector_guard_reg_str)
- {
- const char *str = opts->x_ix86_stack_protector_guard_reg_str;
- addr_space_t seg = ADDR_SPACE_GENERIC;
-
- /* Discard optional register prefix. */
- if (str[0] == '%')
- str++;
-
- if (strlen (str) == 2 && str[1] == 's')
- {
- if (str[0] == 'f')
- seg = ADDR_SPACE_SEG_FS;
- else if (str[0] == 'g')
- seg = ADDR_SPACE_SEG_GS;
- }
-
- if (seg == ADDR_SPACE_GENERIC)
- error ("%qs is not a valid base register "
- "in %<-mstack-protector-guard-reg=%>",
- opts->x_ix86_stack_protector_guard_reg_str);
-
- opts->x_ix86_stack_protector_guard_reg = seg;
- }
- else
- {
- opts->x_ix86_stack_protector_guard_reg = DEFAULT_TLS_SEG_REG;
-
- /* The kernel uses a different segment register for performance
- reasons; a system call would not have to trash the userspace
- segment register, which would be expensive. */
- if (opts->x_ix86_cmodel == CM_KERNEL)
- opts->x_ix86_stack_protector_guard_reg = ADDR_SPACE_SEG_GS;
- }
-
- /* Handle -mmemcpy-strategy= and -mmemset-strategy= */
- if (opts->x_ix86_tune_memcpy_strategy)
- {
- char *str = xstrdup (opts->x_ix86_tune_memcpy_strategy);
- ix86_parse_stringop_strategy_string (str, false);
- free (str);
- }
-
- if (opts->x_ix86_tune_memset_strategy)
- {
- char *str = xstrdup (opts->x_ix86_tune_memset_strategy);
- ix86_parse_stringop_strategy_string (str, true);
- free (str);
- }
-
- /* Save the initial options in case the user does function specific
- options. */
- if (main_args_p)
- target_option_default_node = target_option_current_node
- = build_target_option_node (opts);
-
- if (opts->x_flag_cf_protection != CF_NONE)
- opts->x_flag_cf_protection
- = (cf_protection_level) (opts->x_flag_cf_protection | CF_SET);
-
- if (ix86_tune_features [X86_TUNE_AVOID_256FMA_CHAINS])
- SET_OPTION_IF_UNSET (opts, opts_set, param_avoid_fma_max_bits, 256);
- else if (ix86_tune_features [X86_TUNE_AVOID_128FMA_CHAINS])
- SET_OPTION_IF_UNSET (opts, opts_set, param_avoid_fma_max_bits, 128);
-
- /* PR86952: jump table usage with retpolines is slow.
- The PR provides some numbers about the slowness. */
- if (ix86_indirect_branch != indirect_branch_keep)
- SET_OPTION_IF_UNSET (opts, opts_set, flag_jump_tables, 0);
-
- return true;
-}
-
-/* Implement the TARGET_OPTION_OVERRIDE hook. */
-
-void
-ix86_option_override (void)
-{
- ix86_option_override_internal (true, &global_options, &global_options_set);
-}
-
-/* Remember the last target of ix86_set_current_function. */
-static GTY(()) tree ix86_previous_fndecl;
-
-/* Set targets globals to the default (or current #pragma GCC target
- if active). Invalidate ix86_previous_fndecl cache. */
-
-void
-ix86_reset_previous_fndecl (void)
-{
- tree new_tree = target_option_current_node;
- cl_target_option_restore (&global_options, TREE_TARGET_OPTION (new_tree));
- if (TREE_TARGET_GLOBALS (new_tree))
- restore_target_globals (TREE_TARGET_GLOBALS (new_tree));
- else if (new_tree == target_option_default_node)
- restore_target_globals (&default_target_globals);
- else
- TREE_TARGET_GLOBALS (new_tree) = save_target_globals_default_opts ();
- ix86_previous_fndecl = NULL_TREE;
-}
-
-/* Add target attribute to SIMD clone NODE if needed. */
-
-void
-ix86_simd_clone_adjust (struct cgraph_node *node)
-{
- const char *str = NULL;
-
- /* Attributes need to be adjusted for definitions, not declarations. */
- if (!node->definition)
- return;
-
- gcc_assert (node->decl == cfun->decl);
- switch (node->simdclone->vecsize_mangle)
- {
- case 'b':
- if (!TARGET_SSE2)
- str = "sse2";
- break;
- case 'c':
- if (TARGET_PREFER_AVX128)
- {
- if (!TARGET_AVX)
- str = "avx,prefer-vector-width=256";
- else
- str = "prefer-vector-width=256";
- }
- else if (!TARGET_AVX)
- str = "avx";
- break;
- case 'd':
- if (TARGET_PREFER_AVX128)
- {
- if (!TARGET_AVX2)
- str = "avx2,prefer-vector-width=256";
- else
- str = "prefer-vector-width=256";
- }
- else if (!TARGET_AVX2)
- str = "avx2";
- break;
- case 'e':
- if (TARGET_PREFER_AVX256)
- {
- if (!TARGET_AVX512F)
- str = "avx512f,prefer-vector-width=512";
- else
- str = "prefer-vector-width=512";
- }
- else if (!TARGET_AVX512F)
- str = "avx512f";
- break;
- default:
- gcc_unreachable ();
- }
- if (str == NULL)
- return;
- push_cfun (NULL);
- tree args = build_tree_list (NULL_TREE, build_string (strlen (str), str));
- bool ok = ix86_valid_target_attribute_p (node->decl, NULL, args, 0);
- gcc_assert (ok);
- pop_cfun ();
- ix86_reset_previous_fndecl ();
- ix86_set_current_function (node->decl);
-}
-
-
-
-/* Set the func_type field from the function FNDECL. */
-
-static void
-ix86_set_func_type (tree fndecl)
-{
- if (cfun->machine->func_type == TYPE_UNKNOWN)
- {
- if (lookup_attribute ("interrupt",
- TYPE_ATTRIBUTES (TREE_TYPE (fndecl))))
- {
- if (ix86_function_naked (fndecl))
- error_at (DECL_SOURCE_LOCATION (fndecl),
- "interrupt and naked attributes are not compatible");
-
- int nargs = 0;
- for (tree arg = DECL_ARGUMENTS (fndecl);
- arg;
- arg = TREE_CHAIN (arg))
- nargs++;
- cfun->machine->no_caller_saved_registers = true;
- cfun->machine->func_type
- = nargs == 2 ? TYPE_EXCEPTION : TYPE_INTERRUPT;
-
- ix86_optimize_mode_switching[X86_DIRFLAG] = 1;
-
- /* Only dwarf2out.c can handle -WORD(AP) as a pointer argument. */
- if (write_symbols != NO_DEBUG && write_symbols != DWARF2_DEBUG)
- sorry ("only DWARF debug format is supported for interrupt "
- "service routine");
- }
- else
- {
- cfun->machine->func_type = TYPE_NORMAL;
- if (lookup_attribute ("no_caller_saved_registers",
- TYPE_ATTRIBUTES (TREE_TYPE (fndecl))))
- cfun->machine->no_caller_saved_registers = true;
- }
- }
-}
-
-/* Set the indirect_branch_type field from the function FNDECL. */
-
-static void
-ix86_set_indirect_branch_type (tree fndecl)
-{
- if (cfun->machine->indirect_branch_type == indirect_branch_unset)
- {
- tree attr = lookup_attribute ("indirect_branch",
- DECL_ATTRIBUTES (fndecl));
- if (attr != NULL)
- {
- tree args = TREE_VALUE (attr);
- if (args == NULL)
- gcc_unreachable ();
- tree cst = TREE_VALUE (args);
- if (strcmp (TREE_STRING_POINTER (cst), "keep") == 0)
- cfun->machine->indirect_branch_type = indirect_branch_keep;
- else if (strcmp (TREE_STRING_POINTER (cst), "thunk") == 0)
- cfun->machine->indirect_branch_type = indirect_branch_thunk;
- else if (strcmp (TREE_STRING_POINTER (cst), "thunk-inline") == 0)
- cfun->machine->indirect_branch_type = indirect_branch_thunk_inline;
- else if (strcmp (TREE_STRING_POINTER (cst), "thunk-extern") == 0)
- cfun->machine->indirect_branch_type = indirect_branch_thunk_extern;
- else
- gcc_unreachable ();
- }
- else
- cfun->machine->indirect_branch_type = ix86_indirect_branch;
-
- /* -mcmodel=large is not compatible with -mindirect-branch=thunk
- nor -mindirect-branch=thunk-extern. */
- if ((ix86_cmodel == CM_LARGE || ix86_cmodel == CM_LARGE_PIC)
- && ((cfun->machine->indirect_branch_type
- == indirect_branch_thunk_extern)
- || (cfun->machine->indirect_branch_type
- == indirect_branch_thunk)))
- error ("%<-mindirect-branch=%s%> and %<-mcmodel=large%> are not "
- "compatible",
- ((cfun->machine->indirect_branch_type
- == indirect_branch_thunk_extern)
- ? "thunk-extern" : "thunk"));
-
- if (cfun->machine->indirect_branch_type != indirect_branch_keep
- && (cfun->machine->indirect_branch_type
- != indirect_branch_thunk_extern)
- && (flag_cf_protection & CF_RETURN))
- error ("%<-mindirect-branch%> and %<-fcf-protection%> are not "
- "compatible");
- }
-
- if (cfun->machine->function_return_type == indirect_branch_unset)
- {
- tree attr = lookup_attribute ("function_return",
- DECL_ATTRIBUTES (fndecl));
- if (attr != NULL)
- {
- tree args = TREE_VALUE (attr);
- if (args == NULL)
- gcc_unreachable ();
- tree cst = TREE_VALUE (args);
- if (strcmp (TREE_STRING_POINTER (cst), "keep") == 0)
- cfun->machine->function_return_type = indirect_branch_keep;
- else if (strcmp (TREE_STRING_POINTER (cst), "thunk") == 0)
- cfun->machine->function_return_type = indirect_branch_thunk;
- else if (strcmp (TREE_STRING_POINTER (cst), "thunk-inline") == 0)
- cfun->machine->function_return_type = indirect_branch_thunk_inline;
- else if (strcmp (TREE_STRING_POINTER (cst), "thunk-extern") == 0)
- cfun->machine->function_return_type = indirect_branch_thunk_extern;
- else
- gcc_unreachable ();
- }
- else
- cfun->machine->function_return_type = ix86_function_return;
-
- /* -mcmodel=large is not compatible with -mfunction-return=thunk
- nor -mfunction-return=thunk-extern. */
- if ((ix86_cmodel == CM_LARGE || ix86_cmodel == CM_LARGE_PIC)
- && ((cfun->machine->function_return_type
- == indirect_branch_thunk_extern)
- || (cfun->machine->function_return_type
- == indirect_branch_thunk)))
- error ("%<-mfunction-return=%s%> and %<-mcmodel=large%> are not "
- "compatible",
- ((cfun->machine->function_return_type
- == indirect_branch_thunk_extern)
- ? "thunk-extern" : "thunk"));
-
- if (cfun->machine->function_return_type != indirect_branch_keep
- && (cfun->machine->function_return_type
- != indirect_branch_thunk_extern)
- && (flag_cf_protection & CF_RETURN))
- error ("%<-mfunction-return%> and %<-fcf-protection%> are not "
- "compatible");
- }
-}
-
-/* Establish appropriate back-end context for processing the function
- FNDECL. The argument might be NULL to indicate processing at top
- level, outside of any function scope. */
-void
-ix86_set_current_function (tree fndecl)
-{
- /* Only change the context if the function changes. This hook is called
- several times in the course of compiling a function, and we don't want to
- slow things down too much or call target_reinit when it isn't safe. */
- if (fndecl == ix86_previous_fndecl)
- {
- /* There may be 2 function bodies for the same function FNDECL,
- one is extern inline and one isn't. Call ix86_set_func_type
- to set the func_type field. */
- if (fndecl != NULL_TREE)
- {
- ix86_set_func_type (fndecl);
- ix86_set_indirect_branch_type (fndecl);
- }
- return;
- }
-
- tree old_tree;
- if (ix86_previous_fndecl == NULL_TREE)
- old_tree = target_option_current_node;
- else if (DECL_FUNCTION_SPECIFIC_TARGET (ix86_previous_fndecl))
- old_tree = DECL_FUNCTION_SPECIFIC_TARGET (ix86_previous_fndecl);
- else
- old_tree = target_option_default_node;
-
- if (fndecl == NULL_TREE)
- {
- if (old_tree != target_option_current_node)
- ix86_reset_previous_fndecl ();
- return;
- }
-
- ix86_set_func_type (fndecl);
- ix86_set_indirect_branch_type (fndecl);
-
- tree new_tree = DECL_FUNCTION_SPECIFIC_TARGET (fndecl);
- if (new_tree == NULL_TREE)
- new_tree = target_option_default_node;
-
- if (old_tree != new_tree)
- {
- cl_target_option_restore (&global_options, TREE_TARGET_OPTION (new_tree));
- if (TREE_TARGET_GLOBALS (new_tree))
- restore_target_globals (TREE_TARGET_GLOBALS (new_tree));
- else if (new_tree == target_option_default_node)
- restore_target_globals (&default_target_globals);
- else
- TREE_TARGET_GLOBALS (new_tree) = save_target_globals_default_opts ();
- }
- ix86_previous_fndecl = fndecl;
-
- static bool prev_no_caller_saved_registers;
-
- /* 64-bit MS and SYSV ABI have different set of call used registers.
- Avoid expensive re-initialization of init_regs each time we switch
- function context. */
- if (TARGET_64BIT
- && (call_used_or_fixed_reg_p (SI_REG)
- == (cfun->machine->call_abi == MS_ABI)))
- reinit_regs ();
- /* Need to re-initialize init_regs if caller-saved registers are
- changed. */
- else if (prev_no_caller_saved_registers
- != cfun->machine->no_caller_saved_registers)
- reinit_regs ();
-
- if (cfun->machine->func_type != TYPE_NORMAL
- || cfun->machine->no_caller_saved_registers)
- {
- /* Don't allow SSE, MMX nor x87 instructions since they
- may change processor state. */
- const char *isa;
- if (TARGET_SSE)
- isa = "SSE";
- else if (TARGET_MMX)
- isa = "MMX/3Dnow";
- else if (TARGET_80387)
- isa = "80387";
- else
- isa = NULL;
- if (isa != NULL)
- {
- if (cfun->machine->func_type != TYPE_NORMAL)
- sorry (cfun->machine->func_type == TYPE_EXCEPTION
- ? G_("%s instructions aren%'t allowed in an"
- " exception service routine")
- : G_("%s instructions aren%'t allowed in an"
- " interrupt service routine"),
- isa);
- else
- sorry ("%s instructions aren%'t allowed in a function with "
- "the %<no_caller_saved_registers%> attribute", isa);
- /* Don't issue the same error twice. */
- cfun->machine->func_type = TYPE_NORMAL;
- cfun->machine->no_caller_saved_registers = false;
- }
- }
-
- prev_no_caller_saved_registers
- = cfun->machine->no_caller_saved_registers;
-}
-
-/* Implement the TARGET_OFFLOAD_OPTIONS hook. */
-char *
-ix86_offload_options (void)
-{
- if (TARGET_LP64)
- return xstrdup ("-foffload-abi=lp64");
- return xstrdup ("-foffload-abi=ilp32");
-}
-
-/* Handle "cdecl", "stdcall", "fastcall", "regparm", "thiscall",
- and "sseregparm" calling convention attributes;
- arguments as in struct attribute_spec.handler. */
-
-static tree
-ix86_handle_cconv_attribute (tree *node, tree name, tree args, int,
- bool *no_add_attrs)
-{
- if (TREE_CODE (*node) != FUNCTION_TYPE
- && TREE_CODE (*node) != METHOD_TYPE
- && TREE_CODE (*node) != FIELD_DECL
- && TREE_CODE (*node) != TYPE_DECL)
- {
- warning (OPT_Wattributes, "%qE attribute only applies to functions",
- name);
- *no_add_attrs = true;
- return NULL_TREE;
- }
-
- /* Can combine regparm with all attributes but fastcall, and thiscall. */
- if (is_attribute_p ("regparm", name))
- {
- tree cst;
-
- if (lookup_attribute ("fastcall", TYPE_ATTRIBUTES (*node)))
- {
- error ("fastcall and regparm attributes are not compatible");
- }
-
- if (lookup_attribute ("thiscall", TYPE_ATTRIBUTES (*node)))
- {
- error ("regparam and thiscall attributes are not compatible");
- }
-
- cst = TREE_VALUE (args);
- if (TREE_CODE (cst) != INTEGER_CST)
- {
- warning (OPT_Wattributes,
- "%qE attribute requires an integer constant argument",
- name);
- *no_add_attrs = true;
- }
- else if (compare_tree_int (cst, REGPARM_MAX) > 0)
- {
- warning (OPT_Wattributes, "argument to %qE attribute larger than %d",
- name, REGPARM_MAX);
- *no_add_attrs = true;
- }
-
- return NULL_TREE;
- }
-
- if (TARGET_64BIT)
- {
- /* Do not warn when emulating the MS ABI. */
- if ((TREE_CODE (*node) != FUNCTION_TYPE
- && TREE_CODE (*node) != METHOD_TYPE)
- || ix86_function_type_abi (*node) != MS_ABI)
- warning (OPT_Wattributes, "%qE attribute ignored",
- name);
- *no_add_attrs = true;
- return NULL_TREE;
- }
-
- /* Can combine fastcall with stdcall (redundant) and sseregparm. */
- if (is_attribute_p ("fastcall", name))
- {
- if (lookup_attribute ("cdecl", TYPE_ATTRIBUTES (*node)))
- {
- error ("fastcall and cdecl attributes are not compatible");
- }
- if (lookup_attribute ("stdcall", TYPE_ATTRIBUTES (*node)))
- {
- error ("fastcall and stdcall attributes are not compatible");
- }
- if (lookup_attribute ("regparm", TYPE_ATTRIBUTES (*node)))
- {
- error ("fastcall and regparm attributes are not compatible");
- }
- if (lookup_attribute ("thiscall", TYPE_ATTRIBUTES (*node)))
- {
- error ("fastcall and thiscall attributes are not compatible");
- }
- }
-
- /* Can combine stdcall with fastcall (redundant), regparm and
- sseregparm. */
- else if (is_attribute_p ("stdcall", name))
- {
- if (lookup_attribute ("cdecl", TYPE_ATTRIBUTES (*node)))
- {
- error ("stdcall and cdecl attributes are not compatible");
- }
- if (lookup_attribute ("fastcall", TYPE_ATTRIBUTES (*node)))
- {
- error ("stdcall and fastcall attributes are not compatible");
- }
- if (lookup_attribute ("thiscall", TYPE_ATTRIBUTES (*node)))
- {
- error ("stdcall and thiscall attributes are not compatible");
- }
- }
-
- /* Can combine cdecl with regparm and sseregparm. */
- else if (is_attribute_p ("cdecl", name))
- {
- if (lookup_attribute ("stdcall", TYPE_ATTRIBUTES (*node)))
- {
- error ("stdcall and cdecl attributes are not compatible");
- }
- if (lookup_attribute ("fastcall", TYPE_ATTRIBUTES (*node)))
- {
- error ("fastcall and cdecl attributes are not compatible");
- }
- if (lookup_attribute ("thiscall", TYPE_ATTRIBUTES (*node)))
- {
- error ("cdecl and thiscall attributes are not compatible");
- }
- }
- else if (is_attribute_p ("thiscall", name))
- {
- if (TREE_CODE (*node) != METHOD_TYPE && pedantic)
- warning (OPT_Wattributes, "%qE attribute is used for non-class method",
- name);
- if (lookup_attribute ("stdcall", TYPE_ATTRIBUTES (*node)))
- {
- error ("stdcall and thiscall attributes are not compatible");
- }
- if (lookup_attribute ("fastcall", TYPE_ATTRIBUTES (*node)))
- {
- error ("fastcall and thiscall attributes are not compatible");
- }
- if (lookup_attribute ("cdecl", TYPE_ATTRIBUTES (*node)))
- {
- error ("cdecl and thiscall attributes are not compatible");
- }
- }
-
- /* Can combine sseregparm with all attributes. */
-
- return NULL_TREE;
-}
-
-#ifndef CHECK_STACK_LIMIT
-#define CHECK_STACK_LIMIT (-1)
-#endif
-
-/* The transactional memory builtins are implicitly regparm or fastcall
- depending on the ABI. Override the generic do-nothing attribute that
- these builtins were declared with, and replace it with one of the two
- attributes that we expect elsewhere. */
-
-static tree
-ix86_handle_tm_regparm_attribute (tree *node, tree, tree,
- int flags, bool *no_add_attrs)
-{
- tree alt;
-
- /* In no case do we want to add the placeholder attribute. */
- *no_add_attrs = true;
-
- /* The 64-bit ABI is unchanged for transactional memory. */
- if (TARGET_64BIT)
- return NULL_TREE;
-
- /* ??? Is there a better way to validate 32-bit windows? We have
- cfun->machine->call_abi, but that seems to be set only for 64-bit. */
- if (CHECK_STACK_LIMIT > 0)
- alt = tree_cons (get_identifier ("fastcall"), NULL, NULL);
- else
- {
- alt = tree_cons (NULL, build_int_cst (NULL, 2), NULL);
- alt = tree_cons (get_identifier ("regparm"), alt, NULL);
- }
- decl_attributes (node, alt, flags);
-
- return NULL_TREE;
-}
-
-/* Handle a "force_align_arg_pointer" attribute. */
-
-static tree
-ix86_handle_force_align_arg_pointer_attribute (tree *node, tree name,
- tree, int, bool *no_add_attrs)
-{
- if (TREE_CODE (*node) != FUNCTION_TYPE
- && TREE_CODE (*node) != METHOD_TYPE
- && TREE_CODE (*node) != FIELD_DECL
- && TREE_CODE (*node) != TYPE_DECL)
- {
- warning (OPT_Wattributes, "%qE attribute only applies to functions",
- name);
- *no_add_attrs = true;
- }
-
- return NULL_TREE;
-}
-
-/* Handle a "ms_struct" or "gcc_struct" attribute; arguments as in
- struct attribute_spec.handler. */
-
-static tree
-ix86_handle_struct_attribute (tree *node, tree name, tree, int,
- bool *no_add_attrs)
-{
- tree *type = NULL;
- if (DECL_P (*node))
- {
- if (TREE_CODE (*node) == TYPE_DECL)
- type = &TREE_TYPE (*node);
- }
- else
- type = node;
-
- if (!(type && RECORD_OR_UNION_TYPE_P (*type)))
- {
- warning (OPT_Wattributes, "%qE attribute ignored",
- name);
- *no_add_attrs = true;
- }
-
- else if ((is_attribute_p ("ms_struct", name)
- && lookup_attribute ("gcc_struct", TYPE_ATTRIBUTES (*type)))
- || ((is_attribute_p ("gcc_struct", name)
- && lookup_attribute ("ms_struct", TYPE_ATTRIBUTES (*type)))))
- {
- warning (OPT_Wattributes, "%qE incompatible attribute ignored",
- name);
- *no_add_attrs = true;
- }
-
- return NULL_TREE;
-}
-
-/* Handle a "callee_pop_aggregate_return" attribute; arguments as
- in struct attribute_spec handler. */
-
-static tree
-ix86_handle_callee_pop_aggregate_return (tree *node, tree name, tree args, int,
- bool *no_add_attrs)
-{
- if (TREE_CODE (*node) != FUNCTION_TYPE
- && TREE_CODE (*node) != METHOD_TYPE
- && TREE_CODE (*node) != FIELD_DECL
- && TREE_CODE (*node) != TYPE_DECL)
- {
- warning (OPT_Wattributes, "%qE attribute only applies to functions",
- name);
- *no_add_attrs = true;
- return NULL_TREE;
- }
- if (TARGET_64BIT)
- {
- warning (OPT_Wattributes, "%qE attribute only available for 32-bit",
- name);
- *no_add_attrs = true;
- return NULL_TREE;
- }
- if (is_attribute_p ("callee_pop_aggregate_return", name))
- {
- tree cst;
-
- cst = TREE_VALUE (args);
- if (TREE_CODE (cst) != INTEGER_CST)
- {
- warning (OPT_Wattributes,
- "%qE attribute requires an integer constant argument",
- name);
- *no_add_attrs = true;
- }
- else if (compare_tree_int (cst, 0) != 0
- && compare_tree_int (cst, 1) != 0)
- {
- warning (OPT_Wattributes,
- "argument to %qE attribute is neither zero, nor one",
- name);
- *no_add_attrs = true;
- }
-
- return NULL_TREE;
- }
-
- return NULL_TREE;
-}
-
-/* Handle a "ms_abi" or "sysv" attribute; arguments as in
- struct attribute_spec.handler. */
-
-static tree
-ix86_handle_abi_attribute (tree *node, tree name, tree, int,
- bool *no_add_attrs)
-{
- if (TREE_CODE (*node) != FUNCTION_TYPE
- && TREE_CODE (*node) != METHOD_TYPE
- && TREE_CODE (*node) != FIELD_DECL
- && TREE_CODE (*node) != TYPE_DECL)
- {
- warning (OPT_Wattributes, "%qE attribute only applies to functions",
- name);
- *no_add_attrs = true;
- return NULL_TREE;
- }
-
- /* Can combine regparm with all attributes but fastcall. */
- if (is_attribute_p ("ms_abi", name))
- {
- if (lookup_attribute ("sysv_abi", TYPE_ATTRIBUTES (*node)))
- {
- error ("%qs and %qs attributes are not compatible",
- "ms_abi", "sysv_abi");
- }
-
- return NULL_TREE;
- }
- else if (is_attribute_p ("sysv_abi", name))
- {
- if (lookup_attribute ("ms_abi", TYPE_ATTRIBUTES (*node)))
- {
- error ("%qs and %qs attributes are not compatible",
- "ms_abi", "sysv_abi");
- }
-
- return NULL_TREE;
- }
-
- return NULL_TREE;
-}
-
-static tree
-ix86_handle_fndecl_attribute (tree *node, tree name, tree args, int,
- bool *no_add_attrs)
-{
- if (TREE_CODE (*node) != FUNCTION_DECL)
- {
- warning (OPT_Wattributes, "%qE attribute only applies to functions",
- name);
- *no_add_attrs = true;
- }
-
- if (is_attribute_p ("indirect_branch", name))
- {
- tree cst = TREE_VALUE (args);
- if (TREE_CODE (cst) != STRING_CST)
- {
- warning (OPT_Wattributes,
- "%qE attribute requires a string constant argument",
- name);
- *no_add_attrs = true;
- }
- else if (strcmp (TREE_STRING_POINTER (cst), "keep") != 0
- && strcmp (TREE_STRING_POINTER (cst), "thunk") != 0
- && strcmp (TREE_STRING_POINTER (cst), "thunk-inline") != 0
- && strcmp (TREE_STRING_POINTER (cst), "thunk-extern") != 0)
- {
- warning (OPT_Wattributes,
- "argument to %qE attribute is not "
- "(keep|thunk|thunk-inline|thunk-extern)", name);
- *no_add_attrs = true;
- }
- }
-
- if (is_attribute_p ("function_return", name))
- {
- tree cst = TREE_VALUE (args);
- if (TREE_CODE (cst) != STRING_CST)
- {
- warning (OPT_Wattributes,
- "%qE attribute requires a string constant argument",
- name);
- *no_add_attrs = true;
- }
- else if (strcmp (TREE_STRING_POINTER (cst), "keep") != 0
- && strcmp (TREE_STRING_POINTER (cst), "thunk") != 0
- && strcmp (TREE_STRING_POINTER (cst), "thunk-inline") != 0
- && strcmp (TREE_STRING_POINTER (cst), "thunk-extern") != 0)
- {
- warning (OPT_Wattributes,
- "argument to %qE attribute is not "
- "(keep|thunk|thunk-inline|thunk-extern)", name);
- *no_add_attrs = true;
- }
- }
-
- return NULL_TREE;
-}
-
-static tree
-ix86_handle_no_caller_saved_registers_attribute (tree *, tree, tree,
- int, bool *)
-{
- return NULL_TREE;
-}
-
-static tree
-ix86_handle_interrupt_attribute (tree *node, tree, tree, int, bool *)
-{
- /* DECL_RESULT and DECL_ARGUMENTS do not exist there yet,
- but the function type contains args and return type data. */
- tree func_type = *node;
- tree return_type = TREE_TYPE (func_type);
-
- int nargs = 0;
- tree current_arg_type = TYPE_ARG_TYPES (func_type);
- while (current_arg_type
- && ! VOID_TYPE_P (TREE_VALUE (current_arg_type)))
- {
- if (nargs == 0)
- {
- if (! POINTER_TYPE_P (TREE_VALUE (current_arg_type)))
- error ("interrupt service routine should have a pointer "
- "as the first argument");
- }
- else if (nargs == 1)
- {
- if (TREE_CODE (TREE_VALUE (current_arg_type)) != INTEGER_TYPE
- || TYPE_MODE (TREE_VALUE (current_arg_type)) != word_mode)
- error ("interrupt service routine should have %qs "
- "as the second argument",
- TARGET_64BIT
- ? (TARGET_X32 ? "unsigned long long int"
- : "unsigned long int")
- : "unsigned int");
- }
- nargs++;
- current_arg_type = TREE_CHAIN (current_arg_type);
- }
- if (!nargs || nargs > 2)
- error ("interrupt service routine can only have a pointer argument "
- "and an optional integer argument");
- if (! VOID_TYPE_P (return_type))
- error ("interrupt service routine must return %<void%>");
-
- return NULL_TREE;
-}
-
-/* Handle fentry_name / fentry_section attribute. */
-
-static tree
-ix86_handle_fentry_name (tree *node, tree name, tree args,
- int, bool *no_add_attrs)
-{
- if (TREE_CODE (*node) == FUNCTION_DECL
- && TREE_CODE (TREE_VALUE (args)) == STRING_CST)
- /* Do nothing else, just set the attribute. We'll get at
- it later with lookup_attribute. */
- ;
- else
- {
- warning (OPT_Wattributes, "%qE attribute ignored", name);
- *no_add_attrs = true;
- }
-
- return NULL_TREE;
-}
-
-/* Table of valid machine attributes. */
-const struct attribute_spec ix86_attribute_table[] =
-{
- /* { name, min_len, max_len, decl_req, type_req, fn_type_req,
- affects_type_identity, handler, exclude } */
- /* Stdcall attribute says callee is responsible for popping arguments
- if they are not variable. */
- { "stdcall", 0, 0, false, true, true, true, ix86_handle_cconv_attribute,
- NULL },
- /* Fastcall attribute says callee is responsible for popping arguments
- if they are not variable. */
- { "fastcall", 0, 0, false, true, true, true, ix86_handle_cconv_attribute,
- NULL },
- /* Thiscall attribute says callee is responsible for popping arguments
- if they are not variable. */
- { "thiscall", 0, 0, false, true, true, true, ix86_handle_cconv_attribute,
- NULL },
- /* Cdecl attribute says the callee is a normal C declaration */
- { "cdecl", 0, 0, false, true, true, true, ix86_handle_cconv_attribute,
- NULL },
- /* Regparm attribute specifies how many integer arguments are to be
- passed in registers. */
- { "regparm", 1, 1, false, true, true, true, ix86_handle_cconv_attribute,
- NULL },
- /* Sseregparm attribute says we are using x86_64 calling conventions
- for FP arguments. */
- { "sseregparm", 0, 0, false, true, true, true, ix86_handle_cconv_attribute,
- NULL },
- /* The transactional memory builtins are implicitly regparm or fastcall
- depending on the ABI. Override the generic do-nothing attribute that
- these builtins were declared with. */
- { "*tm regparm", 0, 0, false, true, true, true,
- ix86_handle_tm_regparm_attribute, NULL },
- /* force_align_arg_pointer says this function realigns the stack at entry. */
- { "force_align_arg_pointer", 0, 0,
- false, true, true, false, ix86_handle_force_align_arg_pointer_attribute,
- NULL },
-#if TARGET_DLLIMPORT_DECL_ATTRIBUTES
- { "dllimport", 0, 0, false, false, false, false, handle_dll_attribute,
- NULL },
- { "dllexport", 0, 0, false, false, false, false, handle_dll_attribute,
- NULL },
- { "shared", 0, 0, true, false, false, false,
- ix86_handle_shared_attribute, NULL },
-#endif
- { "ms_struct", 0, 0, false, false, false, false,
- ix86_handle_struct_attribute, NULL },
- { "gcc_struct", 0, 0, false, false, false, false,
- ix86_handle_struct_attribute, NULL },
-#ifdef SUBTARGET_ATTRIBUTE_TABLE
- SUBTARGET_ATTRIBUTE_TABLE,
-#endif
- /* ms_abi and sysv_abi calling convention function attributes. */
- { "ms_abi", 0, 0, false, true, true, true, ix86_handle_abi_attribute, NULL },
- { "sysv_abi", 0, 0, false, true, true, true, ix86_handle_abi_attribute,
- NULL },
- { "ms_abi va_list", 0, 0, false, false, false, false, NULL, NULL },
- { "sysv_abi va_list", 0, 0, false, false, false, false, NULL, NULL },
- { "ms_hook_prologue", 0, 0, true, false, false, false,
- ix86_handle_fndecl_attribute, NULL },
- { "callee_pop_aggregate_return", 1, 1, false, true, true, true,
- ix86_handle_callee_pop_aggregate_return, NULL },
- { "interrupt", 0, 0, false, true, true, false,
- ix86_handle_interrupt_attribute, NULL },
- { "no_caller_saved_registers", 0, 0, false, true, true, false,
- ix86_handle_no_caller_saved_registers_attribute, NULL },
- { "naked", 0, 0, true, false, false, false,
- ix86_handle_fndecl_attribute, NULL },
- { "indirect_branch", 1, 1, true, false, false, false,
- ix86_handle_fndecl_attribute, NULL },
- { "function_return", 1, 1, true, false, false, false,
- ix86_handle_fndecl_attribute, NULL },
- { "indirect_return", 0, 0, false, true, true, false,
- NULL, NULL },
- { "fentry_name", 1, 1, true, false, false, false,
- ix86_handle_fentry_name, NULL },
- { "fentry_section", 1, 1, true, false, false, false,
- ix86_handle_fentry_name, NULL },
- { "cf_check", 0, 0, true, false, false, false,
- ix86_handle_fndecl_attribute, NULL },
-
- /* End element. */
- { NULL, 0, 0, false, false, false, false, NULL, NULL }
-};
-
-#include "gt-i386-options.h"
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