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llvm-project/clang/lib/Basic/Targets/X86.cpp

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//===--- X86.cpp - Implement X86 target feature support -------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file implements X86 TargetInfo objects.
//
//===----------------------------------------------------------------------===//
#include "X86.h"
#include "clang/Basic/Builtins.h"
#include "clang/Basic/Diagnostic.h"
#include "clang/Basic/TargetBuiltins.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/ADT/StringSwitch.h"
#include "llvm/Support/TargetParser.h"
namespace clang {
namespace targets {
const Builtin::Info BuiltinInfoX86[] = {
#define BUILTIN(ID, TYPE, ATTRS) \
{#ID, TYPE, ATTRS, nullptr, ALL_LANGUAGES, nullptr},
#define TARGET_BUILTIN(ID, TYPE, ATTRS, FEATURE) \
{#ID, TYPE, ATTRS, nullptr, ALL_LANGUAGES, FEATURE},
#define TARGET_HEADER_BUILTIN(ID, TYPE, ATTRS, HEADER, LANGS, FEATURE) \
{#ID, TYPE, ATTRS, HEADER, LANGS, FEATURE},
#include "clang/Basic/BuiltinsX86.def"
#define BUILTIN(ID, TYPE, ATTRS) \
{#ID, TYPE, ATTRS, nullptr, ALL_LANGUAGES, nullptr},
#define TARGET_BUILTIN(ID, TYPE, ATTRS, FEATURE) \
{#ID, TYPE, ATTRS, nullptr, ALL_LANGUAGES, FEATURE},
#define TARGET_HEADER_BUILTIN(ID, TYPE, ATTRS, HEADER, LANGS, FEATURE) \
{#ID, TYPE, ATTRS, HEADER, LANGS, FEATURE},
#include "clang/Basic/BuiltinsX86_64.def"
};
static const char *const GCCRegNames[] = {
"ax", "dx", "cx", "bx", "si", "di", "bp", "sp",
"st", "st(1)", "st(2)", "st(3)", "st(4)", "st(5)", "st(6)", "st(7)",
"argp", "flags", "fpcr", "fpsr", "dirflag", "frame", "xmm0", "xmm1",
"xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7", "mm0", "mm1",
"mm2", "mm3", "mm4", "mm5", "mm6", "mm7", "r8", "r9",
"r10", "r11", "r12", "r13", "r14", "r15", "xmm8", "xmm9",
"xmm10", "xmm11", "xmm12", "xmm13", "xmm14", "xmm15", "ymm0", "ymm1",
"ymm2", "ymm3", "ymm4", "ymm5", "ymm6", "ymm7", "ymm8", "ymm9",
"ymm10", "ymm11", "ymm12", "ymm13", "ymm14", "ymm15", "xmm16", "xmm17",
"xmm18", "xmm19", "xmm20", "xmm21", "xmm22", "xmm23", "xmm24", "xmm25",
"xmm26", "xmm27", "xmm28", "xmm29", "xmm30", "xmm31", "ymm16", "ymm17",
"ymm18", "ymm19", "ymm20", "ymm21", "ymm22", "ymm23", "ymm24", "ymm25",
"ymm26", "ymm27", "ymm28", "ymm29", "ymm30", "ymm31", "zmm0", "zmm1",
"zmm2", "zmm3", "zmm4", "zmm5", "zmm6", "zmm7", "zmm8", "zmm9",
"zmm10", "zmm11", "zmm12", "zmm13", "zmm14", "zmm15", "zmm16", "zmm17",
"zmm18", "zmm19", "zmm20", "zmm21", "zmm22", "zmm23", "zmm24", "zmm25",
"zmm26", "zmm27", "zmm28", "zmm29", "zmm30", "zmm31", "k0", "k1",
"k2", "k3", "k4", "k5", "k6", "k7",
"cr0", "cr2", "cr3", "cr4", "cr8",
"dr0", "dr1", "dr2", "dr3", "dr6", "dr7",
"bnd0", "bnd1", "bnd2", "bnd3",
};
const TargetInfo::AddlRegName AddlRegNames[] = {
{{"al", "ah", "eax", "rax"}, 0},
{{"bl", "bh", "ebx", "rbx"}, 3},
{{"cl", "ch", "ecx", "rcx"}, 2},
{{"dl", "dh", "edx", "rdx"}, 1},
{{"esi", "rsi"}, 4},
{{"edi", "rdi"}, 5},
{{"esp", "rsp"}, 7},
{{"ebp", "rbp"}, 6},
{{"r8d", "r8w", "r8b"}, 38},
{{"r9d", "r9w", "r9b"}, 39},
{{"r10d", "r10w", "r10b"}, 40},
{{"r11d", "r11w", "r11b"}, 41},
{{"r12d", "r12w", "r12b"}, 42},
{{"r13d", "r13w", "r13b"}, 43},
{{"r14d", "r14w", "r14b"}, 44},
{{"r15d", "r15w", "r15b"}, 45},
};
} // namespace targets
} // namespace clang
using namespace clang;
using namespace clang::targets;
bool X86TargetInfo::setFPMath(StringRef Name) {
if (Name == "387") {
FPMath = FP_387;
return true;
}
if (Name == "sse") {
FPMath = FP_SSE;
return true;
}
return false;
}
bool X86TargetInfo::initFeatureMap(
llvm::StringMap<bool> &Features, DiagnosticsEngine &Diags, StringRef CPU,
const std::vector<std::string> &FeaturesVec) const {
// FIXME: This *really* should not be here.
// X86_64 always has SSE2.
if (getTriple().getArch() == llvm::Triple::x86_64)
setFeatureEnabledImpl(Features, "sse2", true);
const CPUKind Kind = getCPUKind(CPU);
// Enable X87 for all X86 processors but Lakemont.
if (Kind != CK_Lakemont)
setFeatureEnabledImpl(Features, "x87", true);
// Enable cmpxchg8 for i586 and greater CPUs. Include generic for backwards
// compatibility.
if (Kind >= CK_i586 || Kind == CK_Generic)
setFeatureEnabledImpl(Features, "cx8", true);
switch (Kind) {
case CK_Generic:
case CK_i386:
case CK_i486:
case CK_i586:
case CK_Pentium:
case CK_PentiumPro:
case CK_i686:
case CK_Lakemont:
break;
case CK_Cooperlake:
// CPX inherits all CLX features plus AVX512BF16
setFeatureEnabledImpl(Features, "avx512bf16", true);
LLVM_FALLTHROUGH;
case CK_Cascadelake:
// CLX inherits all SKX features plus AVX512VNNI
setFeatureEnabledImpl(Features, "avx512vnni", true);
LLVM_FALLTHROUGH;
case CK_SkylakeServer:
setFeatureEnabledImpl(Features, "avx512f", true);
setFeatureEnabledImpl(Features, "avx512cd", true);
setFeatureEnabledImpl(Features, "avx512dq", true);
setFeatureEnabledImpl(Features, "avx512bw", true);
setFeatureEnabledImpl(Features, "avx512vl", true);
setFeatureEnabledImpl(Features, "clwb", true);
setFeatureEnabledImpl(Features, "pku", true);
// SkylakeServer cores inherits all SKL features, except SGX
goto SkylakeCommon;
case CK_Tigerlake:
setFeatureEnabledImpl(Features, "avx512vp2intersect", true);
setFeatureEnabledImpl(Features, "movdiri", true);
setFeatureEnabledImpl(Features, "movdir64b", true);
setFeatureEnabledImpl(Features, "shstk", true);
// Tigerlake cores inherits IcelakeClient, except pconfig and wbnoinvd
goto IcelakeCommon;
case CK_IcelakeServer:
setFeatureEnabledImpl(Features, "pconfig", true);
setFeatureEnabledImpl(Features, "wbnoinvd", true);
LLVM_FALLTHROUGH;
case CK_IcelakeClient:
IcelakeCommon:
setFeatureEnabledImpl(Features, "vaes", true);
setFeatureEnabledImpl(Features, "gfni", true);
setFeatureEnabledImpl(Features, "vpclmulqdq", true);
setFeatureEnabledImpl(Features, "avx512bitalg", true);
setFeatureEnabledImpl(Features, "avx512vbmi2", true);
setFeatureEnabledImpl(Features, "avx512vnni", true);
setFeatureEnabledImpl(Features, "avx512vpopcntdq", true);
setFeatureEnabledImpl(Features, "rdpid", true);
setFeatureEnabledImpl(Features, "clwb", true);
LLVM_FALLTHROUGH;
case CK_Cannonlake:
setFeatureEnabledImpl(Features, "avx512f", true);
setFeatureEnabledImpl(Features, "avx512cd", true);
setFeatureEnabledImpl(Features, "avx512dq", true);
setFeatureEnabledImpl(Features, "avx512bw", true);
setFeatureEnabledImpl(Features, "avx512vl", true);
setFeatureEnabledImpl(Features, "avx512ifma", true);
setFeatureEnabledImpl(Features, "avx512vbmi", true);
setFeatureEnabledImpl(Features, "pku", true);
setFeatureEnabledImpl(Features, "sha", true);
LLVM_FALLTHROUGH;
case CK_SkylakeClient:
setFeatureEnabledImpl(Features, "sgx", true);
// SkylakeServer cores inherits all SKL features, except SGX
SkylakeCommon:
setFeatureEnabledImpl(Features, "xsavec", true);
setFeatureEnabledImpl(Features, "xsaves", true);
setFeatureEnabledImpl(Features, "clflushopt", true);
setFeatureEnabledImpl(Features, "aes", true);
LLVM_FALLTHROUGH;
case CK_Broadwell:
setFeatureEnabledImpl(Features, "rdseed", true);
setFeatureEnabledImpl(Features, "adx", true);
setFeatureEnabledImpl(Features, "prfchw", true);
LLVM_FALLTHROUGH;
case CK_Haswell:
setFeatureEnabledImpl(Features, "avx2", true);
setFeatureEnabledImpl(Features, "lzcnt", true);
setFeatureEnabledImpl(Features, "bmi", true);
setFeatureEnabledImpl(Features, "bmi2", true);
setFeatureEnabledImpl(Features, "fma", true);
setFeatureEnabledImpl(Features, "invpcid", true);
setFeatureEnabledImpl(Features, "movbe", true);
LLVM_FALLTHROUGH;
case CK_IvyBridge:
setFeatureEnabledImpl(Features, "rdrnd", true);
setFeatureEnabledImpl(Features, "f16c", true);
setFeatureEnabledImpl(Features, "fsgsbase", true);
LLVM_FALLTHROUGH;
case CK_SandyBridge:
setFeatureEnabledImpl(Features, "avx", true);
setFeatureEnabledImpl(Features, "xsave", true);
setFeatureEnabledImpl(Features, "xsaveopt", true);
LLVM_FALLTHROUGH;
case CK_Westmere:
setFeatureEnabledImpl(Features, "pclmul", true);
LLVM_FALLTHROUGH;
case CK_Nehalem:
setFeatureEnabledImpl(Features, "sse4.2", true);
LLVM_FALLTHROUGH;
case CK_Penryn:
setFeatureEnabledImpl(Features, "sse4.1", true);
LLVM_FALLTHROUGH;
case CK_Core2:
setFeatureEnabledImpl(Features, "ssse3", true);
setFeatureEnabledImpl(Features, "sahf", true);
LLVM_FALLTHROUGH;
case CK_Nocona:
setFeatureEnabledImpl(Features, "cx16", true);
LLVM_FALLTHROUGH;
case CK_Yonah:
case CK_Prescott:
setFeatureEnabledImpl(Features, "sse3", true);
LLVM_FALLTHROUGH;
case CK_PentiumM:
case CK_Pentium4:
case CK_x86_64:
setFeatureEnabledImpl(Features, "sse2", true);
LLVM_FALLTHROUGH;
case CK_Pentium3:
case CK_C3_2:
setFeatureEnabledImpl(Features, "sse", true);
LLVM_FALLTHROUGH;
case CK_Pentium2:
setFeatureEnabledImpl(Features, "fxsr", true);
LLVM_FALLTHROUGH;
case CK_PentiumMMX:
case CK_K6:
case CK_WinChipC6:
setFeatureEnabledImpl(Features, "mmx", true);
break;
case CK_Tremont:
setFeatureEnabledImpl(Features, "cldemote", true);
setFeatureEnabledImpl(Features, "movdiri", true);
setFeatureEnabledImpl(Features, "movdir64b", true);
setFeatureEnabledImpl(Features, "gfni", true);
setFeatureEnabledImpl(Features, "waitpkg", true);
LLVM_FALLTHROUGH;
case CK_GoldmontPlus:
setFeatureEnabledImpl(Features, "ptwrite", true);
setFeatureEnabledImpl(Features, "rdpid", true);
setFeatureEnabledImpl(Features, "sgx", true);
LLVM_FALLTHROUGH;
case CK_Goldmont:
setFeatureEnabledImpl(Features, "sha", true);
setFeatureEnabledImpl(Features, "rdseed", true);
setFeatureEnabledImpl(Features, "xsave", true);
setFeatureEnabledImpl(Features, "xsaveopt", true);
setFeatureEnabledImpl(Features, "xsavec", true);
setFeatureEnabledImpl(Features, "xsaves", true);
setFeatureEnabledImpl(Features, "clflushopt", true);
setFeatureEnabledImpl(Features, "fsgsbase", true);
setFeatureEnabledImpl(Features, "aes", true);
LLVM_FALLTHROUGH;
case CK_Silvermont:
setFeatureEnabledImpl(Features, "rdrnd", true);
setFeatureEnabledImpl(Features, "pclmul", true);
setFeatureEnabledImpl(Features, "sse4.2", true);
setFeatureEnabledImpl(Features, "prfchw", true);
LLVM_FALLTHROUGH;
case CK_Bonnell:
setFeatureEnabledImpl(Features, "movbe", true);
setFeatureEnabledImpl(Features, "ssse3", true);
setFeatureEnabledImpl(Features, "fxsr", true);
setFeatureEnabledImpl(Features, "cx16", true);
setFeatureEnabledImpl(Features, "sahf", true);
setFeatureEnabledImpl(Features, "mmx", true);
break;
case CK_KNM:
// TODO: Add avx5124fmaps/avx5124vnniw.
setFeatureEnabledImpl(Features, "avx512vpopcntdq", true);
LLVM_FALLTHROUGH;
case CK_KNL:
setFeatureEnabledImpl(Features, "avx512f", true);
setFeatureEnabledImpl(Features, "avx512cd", true);
setFeatureEnabledImpl(Features, "avx512er", true);
setFeatureEnabledImpl(Features, "avx512pf", true);
setFeatureEnabledImpl(Features, "prfchw", true);
setFeatureEnabledImpl(Features, "prefetchwt1", true);
setFeatureEnabledImpl(Features, "fxsr", true);
setFeatureEnabledImpl(Features, "rdseed", true);
setFeatureEnabledImpl(Features, "adx", true);
setFeatureEnabledImpl(Features, "lzcnt", true);
setFeatureEnabledImpl(Features, "bmi", true);
setFeatureEnabledImpl(Features, "bmi2", true);
setFeatureEnabledImpl(Features, "fma", true);
setFeatureEnabledImpl(Features, "rdrnd", true);
setFeatureEnabledImpl(Features, "f16c", true);
setFeatureEnabledImpl(Features, "fsgsbase", true);
setFeatureEnabledImpl(Features, "aes", true);
setFeatureEnabledImpl(Features, "pclmul", true);
setFeatureEnabledImpl(Features, "cx16", true);
setFeatureEnabledImpl(Features, "xsaveopt", true);
setFeatureEnabledImpl(Features, "xsave", true);
setFeatureEnabledImpl(Features, "movbe", true);
setFeatureEnabledImpl(Features, "sahf", true);
setFeatureEnabledImpl(Features, "mmx", true);
break;
case CK_K6_2:
case CK_K6_3:
case CK_WinChip2:
case CK_C3:
setFeatureEnabledImpl(Features, "3dnow", true);
break;
case CK_AMDFAM10:
setFeatureEnabledImpl(Features, "sse4a", true);
setFeatureEnabledImpl(Features, "lzcnt", true);
setFeatureEnabledImpl(Features, "popcnt", true);
setFeatureEnabledImpl(Features, "sahf", true);
LLVM_FALLTHROUGH;
case CK_K8SSE3:
setFeatureEnabledImpl(Features, "sse3", true);
LLVM_FALLTHROUGH;
case CK_K8:
setFeatureEnabledImpl(Features, "sse2", true);
LLVM_FALLTHROUGH;
case CK_AthlonXP:
setFeatureEnabledImpl(Features, "sse", true);
setFeatureEnabledImpl(Features, "fxsr", true);
LLVM_FALLTHROUGH;
case CK_Athlon:
case CK_Geode:
setFeatureEnabledImpl(Features, "3dnowa", true);
break;
case CK_BTVER2:
setFeatureEnabledImpl(Features, "avx", true);
setFeatureEnabledImpl(Features, "aes", true);
setFeatureEnabledImpl(Features, "pclmul", true);
setFeatureEnabledImpl(Features, "bmi", true);
setFeatureEnabledImpl(Features, "f16c", true);
setFeatureEnabledImpl(Features, "xsaveopt", true);
setFeatureEnabledImpl(Features, "movbe", true);
LLVM_FALLTHROUGH;
case CK_BTVER1:
setFeatureEnabledImpl(Features, "ssse3", true);
setFeatureEnabledImpl(Features, "sse4a", true);
setFeatureEnabledImpl(Features, "lzcnt", true);
setFeatureEnabledImpl(Features, "popcnt", true);
setFeatureEnabledImpl(Features, "prfchw", true);
setFeatureEnabledImpl(Features, "cx16", true);
setFeatureEnabledImpl(Features, "fxsr", true);
setFeatureEnabledImpl(Features, "sahf", true);
setFeatureEnabledImpl(Features, "mmx", true);
break;
case CK_ZNVER2:
setFeatureEnabledImpl(Features, "clwb", true);
setFeatureEnabledImpl(Features, "rdpid", true);
setFeatureEnabledImpl(Features, "wbnoinvd", true);
LLVM_FALLTHROUGH;
case CK_ZNVER1:
setFeatureEnabledImpl(Features, "adx", true);
setFeatureEnabledImpl(Features, "aes", true);
setFeatureEnabledImpl(Features, "avx2", true);
setFeatureEnabledImpl(Features, "bmi", true);
setFeatureEnabledImpl(Features, "bmi2", true);
setFeatureEnabledImpl(Features, "clflushopt", true);
setFeatureEnabledImpl(Features, "clzero", true);
setFeatureEnabledImpl(Features, "cx16", true);
setFeatureEnabledImpl(Features, "f16c", true);
setFeatureEnabledImpl(Features, "fma", true);
setFeatureEnabledImpl(Features, "fsgsbase", true);
setFeatureEnabledImpl(Features, "fxsr", true);
setFeatureEnabledImpl(Features, "lzcnt", true);
setFeatureEnabledImpl(Features, "mmx", true);
setFeatureEnabledImpl(Features, "mwaitx", true);
setFeatureEnabledImpl(Features, "movbe", true);
setFeatureEnabledImpl(Features, "pclmul", true);
setFeatureEnabledImpl(Features, "popcnt", true);
setFeatureEnabledImpl(Features, "prfchw", true);
setFeatureEnabledImpl(Features, "rdrnd", true);
setFeatureEnabledImpl(Features, "rdseed", true);
setFeatureEnabledImpl(Features, "sahf", true);
setFeatureEnabledImpl(Features, "sha", true);
setFeatureEnabledImpl(Features, "sse4a", true);
setFeatureEnabledImpl(Features, "xsave", true);
setFeatureEnabledImpl(Features, "xsavec", true);
setFeatureEnabledImpl(Features, "xsaveopt", true);
setFeatureEnabledImpl(Features, "xsaves", true);
break;
case CK_BDVER4:
setFeatureEnabledImpl(Features, "avx2", true);
setFeatureEnabledImpl(Features, "bmi2", true);
setFeatureEnabledImpl(Features, "mwaitx", true);
LLVM_FALLTHROUGH;
case CK_BDVER3:
setFeatureEnabledImpl(Features, "fsgsbase", true);
setFeatureEnabledImpl(Features, "xsaveopt", true);
LLVM_FALLTHROUGH;
case CK_BDVER2:
setFeatureEnabledImpl(Features, "bmi", true);
setFeatureEnabledImpl(Features, "fma", true);
setFeatureEnabledImpl(Features, "f16c", true);
setFeatureEnabledImpl(Features, "tbm", true);
LLVM_FALLTHROUGH;
case CK_BDVER1:
// xop implies avx, sse4a and fma4.
setFeatureEnabledImpl(Features, "xop", true);
setFeatureEnabledImpl(Features, "lwp", true);
setFeatureEnabledImpl(Features, "lzcnt", true);
setFeatureEnabledImpl(Features, "aes", true);
setFeatureEnabledImpl(Features, "pclmul", true);
setFeatureEnabledImpl(Features, "prfchw", true);
setFeatureEnabledImpl(Features, "cx16", true);
setFeatureEnabledImpl(Features, "fxsr", true);
setFeatureEnabledImpl(Features, "xsave", true);
setFeatureEnabledImpl(Features, "sahf", true);
setFeatureEnabledImpl(Features, "mmx", true);
break;
}
if (!TargetInfo::initFeatureMap(Features, Diags, CPU, FeaturesVec))
return false;
// Can't do this earlier because we need to be able to explicitly enable
// or disable these features and the things that they depend upon.
// Enable popcnt if sse4.2 is enabled and popcnt is not explicitly disabled.
auto I = Features.find("sse4.2");
if (I != Features.end() && I->getValue() &&
llvm::find(FeaturesVec, "-popcnt") == FeaturesVec.end())
Features["popcnt"] = true;
// Enable prfchw if 3DNow! is enabled and prfchw is not explicitly disabled.
I = Features.find("3dnow");
if (I != Features.end() && I->getValue() &&
llvm::find(FeaturesVec, "-prfchw") == FeaturesVec.end())
Features["prfchw"] = true;
// Additionally, if SSE is enabled and mmx is not explicitly disabled,
// then enable MMX.
I = Features.find("sse");
if (I != Features.end() && I->getValue() &&
llvm::find(FeaturesVec, "-mmx") == FeaturesVec.end())
Features["mmx"] = true;
return true;
}
void X86TargetInfo::setSSELevel(llvm::StringMap<bool> &Features,
X86SSEEnum Level, bool Enabled) {
if (Enabled) {
switch (Level) {
case AVX512F:
Features["avx512f"] = true;
Features["fma"] = true;
Features["f16c"] = true;
LLVM_FALLTHROUGH;
case AVX2:
Features["avx2"] = true;
LLVM_FALLTHROUGH;
case AVX:
Features["avx"] = true;
Features["xsave"] = true;
LLVM_FALLTHROUGH;
case SSE42:
Features["sse4.2"] = true;
LLVM_FALLTHROUGH;
case SSE41:
Features["sse4.1"] = true;
LLVM_FALLTHROUGH;
case SSSE3:
Features["ssse3"] = true;
LLVM_FALLTHROUGH;
case SSE3:
Features["sse3"] = true;
LLVM_FALLTHROUGH;
case SSE2:
Features["sse2"] = true;
LLVM_FALLTHROUGH;
case SSE1:
Features["sse"] = true;
LLVM_FALLTHROUGH;
case NoSSE:
break;
}
return;
}
switch (Level) {
case NoSSE:
case SSE1:
Features["sse"] = false;
LLVM_FALLTHROUGH;
case SSE2:
Features["sse2"] = Features["pclmul"] = Features["aes"] = false;
Features["sha"] = Features["gfni"] = false;
LLVM_FALLTHROUGH;
case SSE3:
Features["sse3"] = false;
setXOPLevel(Features, NoXOP, false);
LLVM_FALLTHROUGH;
case SSSE3:
Features["ssse3"] = false;
LLVM_FALLTHROUGH;
case SSE41:
Features["sse4.1"] = false;
LLVM_FALLTHROUGH;
case SSE42:
Features["sse4.2"] = false;
LLVM_FALLTHROUGH;
case AVX:
Features["fma"] = Features["avx"] = Features["f16c"] = false;
Features["xsave"] = Features["xsaveopt"] = Features["vaes"] = false;
Features["vpclmulqdq"] = false;
setXOPLevel(Features, FMA4, false);
LLVM_FALLTHROUGH;
case AVX2:
Features["avx2"] = false;
LLVM_FALLTHROUGH;
case AVX512F:
Features["avx512f"] = Features["avx512cd"] = Features["avx512er"] = false;
Features["avx512pf"] = Features["avx512dq"] = Features["avx512bw"] = false;
Features["avx512vl"] = Features["avx512vbmi"] = false;
Features["avx512ifma"] = Features["avx512vpopcntdq"] = false;
Features["avx512bitalg"] = Features["avx512vnni"] = false;
Features["avx512vbmi2"] = Features["avx512bf16"] = false;
Features["avx512vp2intersect"] = false;
break;
}
}
void X86TargetInfo::setMMXLevel(llvm::StringMap<bool> &Features,
MMX3DNowEnum Level, bool Enabled) {
if (Enabled) {
switch (Level) {
case AMD3DNowAthlon:
Features["3dnowa"] = true;
LLVM_FALLTHROUGH;
case AMD3DNow:
Features["3dnow"] = true;
LLVM_FALLTHROUGH;
case MMX:
Features["mmx"] = true;
LLVM_FALLTHROUGH;
case NoMMX3DNow:
break;
}
return;
}
switch (Level) {
case NoMMX3DNow:
case MMX:
Features["mmx"] = false;
LLVM_FALLTHROUGH;
case AMD3DNow:
Features["3dnow"] = false;
LLVM_FALLTHROUGH;
case AMD3DNowAthlon:
Features["3dnowa"] = false;
break;
}
}
void X86TargetInfo::setXOPLevel(llvm::StringMap<bool> &Features, XOPEnum Level,
bool Enabled) {
if (Enabled) {
switch (Level) {
case XOP:
Features["xop"] = true;
LLVM_FALLTHROUGH;
case FMA4:
Features["fma4"] = true;
setSSELevel(Features, AVX, true);
LLVM_FALLTHROUGH;
case SSE4A:
Features["sse4a"] = true;
setSSELevel(Features, SSE3, true);
LLVM_FALLTHROUGH;
case NoXOP:
break;
}
return;
}
switch (Level) {
case NoXOP:
case SSE4A:
Features["sse4a"] = false;
LLVM_FALLTHROUGH;
case FMA4:
Features["fma4"] = false;
LLVM_FALLTHROUGH;
case XOP:
Features["xop"] = false;
break;
}
}
void X86TargetInfo::setFeatureEnabledImpl(llvm::StringMap<bool> &Features,
StringRef Name, bool Enabled) {
// This is a bit of a hack to deal with the sse4 target feature when used
// as part of the target attribute. We handle sse4 correctly everywhere
// else. See below for more information on how we handle the sse4 options.
if (Name != "sse4")
Features[Name] = Enabled;
if (Name == "mmx") {
setMMXLevel(Features, MMX, Enabled);
} else if (Name == "sse") {
setSSELevel(Features, SSE1, Enabled);
} else if (Name == "sse2") {
setSSELevel(Features, SSE2, Enabled);
} else if (Name == "sse3") {
setSSELevel(Features, SSE3, Enabled);
} else if (Name == "ssse3") {
setSSELevel(Features, SSSE3, Enabled);
} else if (Name == "sse4.2") {
setSSELevel(Features, SSE42, Enabled);
} else if (Name == "sse4.1") {
setSSELevel(Features, SSE41, Enabled);
} else if (Name == "3dnow") {
setMMXLevel(Features, AMD3DNow, Enabled);
} else if (Name == "3dnowa") {
setMMXLevel(Features, AMD3DNowAthlon, Enabled);
} else if (Name == "aes") {
if (Enabled)
setSSELevel(Features, SSE2, Enabled);
else
Features["vaes"] = false;
} else if (Name == "vaes") {
if (Enabled) {
setSSELevel(Features, AVX, Enabled);
Features["aes"] = true;
}
} else if (Name == "pclmul") {
if (Enabled)
setSSELevel(Features, SSE2, Enabled);
else
Features["vpclmulqdq"] = false;
} else if (Name == "vpclmulqdq") {
if (Enabled) {
setSSELevel(Features, AVX, Enabled);
Features["pclmul"] = true;
}
} else if (Name == "gfni") {
if (Enabled)
setSSELevel(Features, SSE2, Enabled);
} else if (Name == "avx") {
setSSELevel(Features, AVX, Enabled);
} else if (Name == "avx2") {
setSSELevel(Features, AVX2, Enabled);
} else if (Name == "avx512f") {
setSSELevel(Features, AVX512F, Enabled);
} else if (Name.startswith("avx512")) {
if (Enabled)
setSSELevel(Features, AVX512F, Enabled);
// Enable BWI instruction if certain features are being enabled.
if ((Name == "avx512vbmi" || Name == "avx512vbmi2" ||
Name == "avx512bitalg" || Name == "avx512bf16") && Enabled)
Features["avx512bw"] = true;
// Also disable some features if BWI is being disabled.
if (Name == "avx512bw" && !Enabled) {
Features["avx512vbmi"] = false;
Features["avx512vbmi2"] = false;
Features["avx512bitalg"] = false;
Features["avx512bf16"] = false;
}
} else if (Name == "fma") {
if (Enabled)
setSSELevel(Features, AVX, Enabled);
else
setSSELevel(Features, AVX512F, Enabled);
} else if (Name == "fma4") {
setXOPLevel(Features, FMA4, Enabled);
} else if (Name == "xop") {
setXOPLevel(Features, XOP, Enabled);
} else if (Name == "sse4a") {
setXOPLevel(Features, SSE4A, Enabled);
} else if (Name == "f16c") {
if (Enabled)
setSSELevel(Features, AVX, Enabled);
else
setSSELevel(Features, AVX512F, Enabled);
} else if (Name == "sha") {
if (Enabled)
setSSELevel(Features, SSE2, Enabled);
} else if (Name == "sse4") {
// We can get here via the __target__ attribute since that's not controlled
// via the -msse4/-mno-sse4 command line alias. Handle this the same way
// here - turn on the sse4.2 if enabled, turn off the sse4.1 level if
// disabled.
if (Enabled)
setSSELevel(Features, SSE42, Enabled);
else
setSSELevel(Features, SSE41, Enabled);
} else if (Name == "xsave") {
if (!Enabled)
Features["xsaveopt"] = false;
} else if (Name == "xsaveopt" || Name == "xsavec" || Name == "xsaves") {
if (Enabled)
Features["xsave"] = true;
}
}
/// handleTargetFeatures - Perform initialization based on the user
/// configured set of features.
bool X86TargetInfo::handleTargetFeatures(std::vector<std::string> &Features,
DiagnosticsEngine &Diags) {
for (const auto &Feature : Features) {
if (Feature[0] != '+')
continue;
if (Feature == "+aes") {
HasAES = true;
} else if (Feature == "+vaes") {
HasVAES = true;
} else if (Feature == "+pclmul") {
HasPCLMUL = true;
} else if (Feature == "+vpclmulqdq") {
HasVPCLMULQDQ = true;
} else if (Feature == "+lzcnt") {
HasLZCNT = true;
} else if (Feature == "+rdrnd") {
HasRDRND = true;
} else if (Feature == "+fsgsbase") {
HasFSGSBASE = true;
} else if (Feature == "+bmi") {
HasBMI = true;
} else if (Feature == "+bmi2") {
HasBMI2 = true;
} else if (Feature == "+popcnt") {
HasPOPCNT = true;
} else if (Feature == "+rtm") {
HasRTM = true;
} else if (Feature == "+prfchw") {
HasPRFCHW = true;
} else if (Feature == "+rdseed") {
HasRDSEED = true;
} else if (Feature == "+adx") {
HasADX = true;
} else if (Feature == "+tbm") {
HasTBM = true;
} else if (Feature == "+lwp") {
HasLWP = true;
} else if (Feature == "+fma") {
HasFMA = true;
} else if (Feature == "+f16c") {
HasF16C = true;
} else if (Feature == "+gfni") {
HasGFNI = true;
} else if (Feature == "+avx512cd") {
HasAVX512CD = true;
} else if (Feature == "+avx512vpopcntdq") {
HasAVX512VPOPCNTDQ = true;
} else if (Feature == "+avx512vnni") {
HasAVX512VNNI = true;
} else if (Feature == "+avx512bf16") {
HasAVX512BF16 = true;
} else if (Feature == "+avx512er") {
HasAVX512ER = true;
} else if (Feature == "+avx512pf") {
HasAVX512PF = true;
} else if (Feature == "+avx512dq") {
HasAVX512DQ = true;
} else if (Feature == "+avx512bitalg") {
HasAVX512BITALG = true;
} else if (Feature == "+avx512bw") {
HasAVX512BW = true;
} else if (Feature == "+avx512vl") {
HasAVX512VL = true;
} else if (Feature == "+avx512vbmi") {
HasAVX512VBMI = true;
} else if (Feature == "+avx512vbmi2") {
HasAVX512VBMI2 = true;
} else if (Feature == "+avx512ifma") {
HasAVX512IFMA = true;
} else if (Feature == "+avx512vp2intersect") {
HasAVX512VP2INTERSECT = true;
} else if (Feature == "+sha") {
HasSHA = true;
} else if (Feature == "+shstk") {
HasSHSTK = true;
} else if (Feature == "+movbe") {
HasMOVBE = true;
} else if (Feature == "+sgx") {
HasSGX = true;
} else if (Feature == "+cx8") {
HasCX8 = true;
} else if (Feature == "+cx16") {
HasCX16 = true;
} else if (Feature == "+fxsr") {
HasFXSR = true;
} else if (Feature == "+xsave") {
HasXSAVE = true;
} else if (Feature == "+xsaveopt") {
HasXSAVEOPT = true;
} else if (Feature == "+xsavec") {
HasXSAVEC = true;
} else if (Feature == "+xsaves") {
HasXSAVES = true;
} else if (Feature == "+mwaitx") {
HasMWAITX = true;
} else if (Feature == "+pku") {
HasPKU = true;
} else if (Feature == "+clflushopt") {
HasCLFLUSHOPT = true;
} else if (Feature == "+clwb") {
HasCLWB = true;
} else if (Feature == "+wbnoinvd") {
HasWBNOINVD = true;
} else if (Feature == "+prefetchwt1") {
HasPREFETCHWT1 = true;
} else if (Feature == "+clzero") {
HasCLZERO = true;
} else if (Feature == "+cldemote") {
HasCLDEMOTE = true;
} else if (Feature == "+rdpid") {
HasRDPID = true;
} else if (Feature == "+retpoline-external-thunk") {
HasRetpolineExternalThunk = true;
} else if (Feature == "+sahf") {
HasLAHFSAHF = true;
} else if (Feature == "+waitpkg") {
HasWAITPKG = true;
} else if (Feature == "+movdiri") {
HasMOVDIRI = true;
} else if (Feature == "+movdir64b") {
HasMOVDIR64B = true;
} else if (Feature == "+pconfig") {
HasPCONFIG = true;
} else if (Feature == "+ptwrite") {
HasPTWRITE = true;
} else if (Feature == "+invpcid") {
HasINVPCID = true;
} else if (Feature == "+enqcmd") {
HasENQCMD = true;
}
X86SSEEnum Level = llvm::StringSwitch<X86SSEEnum>(Feature)
.Case("+avx512f", AVX512F)
.Case("+avx2", AVX2)
.Case("+avx", AVX)
.Case("+sse4.2", SSE42)
.Case("+sse4.1", SSE41)
.Case("+ssse3", SSSE3)
.Case("+sse3", SSE3)
.Case("+sse2", SSE2)
.Case("+sse", SSE1)
.Default(NoSSE);
SSELevel = std::max(SSELevel, Level);
MMX3DNowEnum ThreeDNowLevel = llvm::StringSwitch<MMX3DNowEnum>(Feature)
.Case("+3dnowa", AMD3DNowAthlon)
.Case("+3dnow", AMD3DNow)
.Case("+mmx", MMX)
.Default(NoMMX3DNow);
MMX3DNowLevel = std::max(MMX3DNowLevel, ThreeDNowLevel);
XOPEnum XLevel = llvm::StringSwitch<XOPEnum>(Feature)
.Case("+xop", XOP)
.Case("+fma4", FMA4)
.Case("+sse4a", SSE4A)
.Default(NoXOP);
XOPLevel = std::max(XOPLevel, XLevel);
}
// LLVM doesn't have a separate switch for fpmath, so only accept it if it
// matches the selected sse level.
if ((FPMath == FP_SSE && SSELevel < SSE1) ||
(FPMath == FP_387 && SSELevel >= SSE1)) {
Diags.Report(diag::err_target_unsupported_fpmath)
<< (FPMath == FP_SSE ? "sse" : "387");
return false;
}
SimdDefaultAlign =
hasFeature("avx512f") ? 512 : hasFeature("avx") ? 256 : 128;
return true;
}
/// X86TargetInfo::getTargetDefines - Return the set of the X86-specific macro
/// definitions for this particular subtarget.
void X86TargetInfo::getTargetDefines(const LangOptions &Opts,
MacroBuilder &Builder) const {
// Inline assembly supports X86 flag outputs.
Builder.defineMacro("__GCC_ASM_FLAG_OUTPUTS__");
std::string CodeModel = getTargetOpts().CodeModel;
if (CodeModel == "default")
CodeModel = "small";
Builder.defineMacro("__code_model_" + CodeModel + "_");
// Target identification.
if (getTriple().getArch() == llvm::Triple::x86_64) {
Builder.defineMacro("__amd64__");
Builder.defineMacro("__amd64");
Builder.defineMacro("__x86_64");
Builder.defineMacro("__x86_64__");
if (getTriple().getArchName() == "x86_64h") {
Builder.defineMacro("__x86_64h");
Builder.defineMacro("__x86_64h__");
}
} else {
DefineStd(Builder, "i386", Opts);
}
Builder.defineMacro("__SEG_GS");
Builder.defineMacro("__SEG_FS");
Builder.defineMacro("__seg_gs", "__attribute__((address_space(256)))");
Builder.defineMacro("__seg_fs", "__attribute__((address_space(257)))");
// Subtarget options.
// FIXME: We are hard-coding the tune parameters based on the CPU, but they
// truly should be based on -mtune options.
switch (CPU) {
case CK_Generic:
break;
case CK_i386:
// The rest are coming from the i386 define above.
Builder.defineMacro("__tune_i386__");
break;
case CK_i486:
case CK_WinChipC6:
case CK_WinChip2:
case CK_C3:
defineCPUMacros(Builder, "i486");
break;
case CK_PentiumMMX:
Builder.defineMacro("__pentium_mmx__");
Builder.defineMacro("__tune_pentium_mmx__");
LLVM_FALLTHROUGH;
case CK_i586:
case CK_Pentium:
defineCPUMacros(Builder, "i586");
defineCPUMacros(Builder, "pentium");
break;
case CK_Pentium3:
case CK_PentiumM:
Builder.defineMacro("__tune_pentium3__");
LLVM_FALLTHROUGH;
case CK_Pentium2:
case CK_C3_2:
Builder.defineMacro("__tune_pentium2__");
LLVM_FALLTHROUGH;
case CK_PentiumPro:
case CK_i686:
defineCPUMacros(Builder, "i686");
defineCPUMacros(Builder, "pentiumpro");
break;
case CK_Pentium4:
defineCPUMacros(Builder, "pentium4");
break;
case CK_Yonah:
case CK_Prescott:
case CK_Nocona:
defineCPUMacros(Builder, "nocona");
break;
case CK_Core2:
case CK_Penryn:
defineCPUMacros(Builder, "core2");
break;
case CK_Bonnell:
defineCPUMacros(Builder, "atom");
break;
case CK_Silvermont:
defineCPUMacros(Builder, "slm");
break;
case CK_Goldmont:
defineCPUMacros(Builder, "goldmont");
break;
case CK_GoldmontPlus:
defineCPUMacros(Builder, "goldmont_plus");
break;
case CK_Tremont:
defineCPUMacros(Builder, "tremont");
break;
case CK_Nehalem:
case CK_Westmere:
case CK_SandyBridge:
case CK_IvyBridge:
case CK_Haswell:
case CK_Broadwell:
case CK_SkylakeClient:
case CK_SkylakeServer:
case CK_Cascadelake:
case CK_Cooperlake:
case CK_Cannonlake:
case CK_IcelakeClient:
case CK_IcelakeServer:
case CK_Tigerlake:
// FIXME: Historically, we defined this legacy name, it would be nice to
// remove it at some point. We've never exposed fine-grained names for
// recent primary x86 CPUs, and we should keep it that way.
defineCPUMacros(Builder, "corei7");
break;
case CK_KNL:
defineCPUMacros(Builder, "knl");
break;
case CK_KNM:
break;
case CK_Lakemont:
defineCPUMacros(Builder, "i586", /*Tuning*/false);
defineCPUMacros(Builder, "pentium", /*Tuning*/false);
Builder.defineMacro("__tune_lakemont__");
break;
case CK_K6_2:
Builder.defineMacro("__k6_2__");
Builder.defineMacro("__tune_k6_2__");
LLVM_FALLTHROUGH;
case CK_K6_3:
if (CPU != CK_K6_2) { // In case of fallthrough
// FIXME: GCC may be enabling these in cases where some other k6
// architecture is specified but -m3dnow is explicitly provided. The
// exact semantics need to be determined and emulated here.
Builder.defineMacro("__k6_3__");
Builder.defineMacro("__tune_k6_3__");
}
LLVM_FALLTHROUGH;
case CK_K6:
defineCPUMacros(Builder, "k6");
break;
case CK_Athlon:
case CK_AthlonXP:
defineCPUMacros(Builder, "athlon");
if (SSELevel != NoSSE) {
Builder.defineMacro("__athlon_sse__");
Builder.defineMacro("__tune_athlon_sse__");
}
break;
case CK_K8:
case CK_K8SSE3:
case CK_x86_64:
defineCPUMacros(Builder, "k8");
break;
case CK_AMDFAM10:
defineCPUMacros(Builder, "amdfam10");
break;
case CK_BTVER1:
defineCPUMacros(Builder, "btver1");
break;
case CK_BTVER2:
defineCPUMacros(Builder, "btver2");
break;
case CK_BDVER1:
defineCPUMacros(Builder, "bdver1");
break;
case CK_BDVER2:
defineCPUMacros(Builder, "bdver2");
break;
case CK_BDVER3:
defineCPUMacros(Builder, "bdver3");
break;
case CK_BDVER4:
defineCPUMacros(Builder, "bdver4");
break;
case CK_ZNVER1:
defineCPUMacros(Builder, "znver1");
break;
case CK_ZNVER2:
defineCPUMacros(Builder, "znver2");
break;
case CK_Geode:
defineCPUMacros(Builder, "geode");
break;
}
// Target properties.
Builder.defineMacro("__REGISTER_PREFIX__", "");
// Define __NO_MATH_INLINES on linux/x86 so that we don't get inline
// functions in glibc header files that use FP Stack inline asm which the
// backend can't deal with (PR879).
Builder.defineMacro("__NO_MATH_INLINES");
if (HasAES)
Builder.defineMacro("__AES__");
if (HasVAES)
Builder.defineMacro("__VAES__");
if (HasPCLMUL)
Builder.defineMacro("__PCLMUL__");
if (HasVPCLMULQDQ)
Builder.defineMacro("__VPCLMULQDQ__");
if (HasLZCNT)
Builder.defineMacro("__LZCNT__");
if (HasRDRND)
Builder.defineMacro("__RDRND__");
if (HasFSGSBASE)
Builder.defineMacro("__FSGSBASE__");
if (HasBMI)
Builder.defineMacro("__BMI__");
if (HasBMI2)
Builder.defineMacro("__BMI2__");
if (HasPOPCNT)
Builder.defineMacro("__POPCNT__");
if (HasRTM)
Builder.defineMacro("__RTM__");
if (HasPRFCHW)
Builder.defineMacro("__PRFCHW__");
if (HasRDSEED)
Builder.defineMacro("__RDSEED__");
if (HasADX)
Builder.defineMacro("__ADX__");
if (HasTBM)
Builder.defineMacro("__TBM__");
if (HasLWP)
Builder.defineMacro("__LWP__");
if (HasMWAITX)
Builder.defineMacro("__MWAITX__");
if (HasMOVBE)
Builder.defineMacro("__MOVBE__");
switch (XOPLevel) {
case XOP:
Builder.defineMacro("__XOP__");
LLVM_FALLTHROUGH;
case FMA4:
Builder.defineMacro("__FMA4__");
LLVM_FALLTHROUGH;
case SSE4A:
Builder.defineMacro("__SSE4A__");
LLVM_FALLTHROUGH;
case NoXOP:
break;
}
if (HasFMA)
Builder.defineMacro("__FMA__");
if (HasF16C)
Builder.defineMacro("__F16C__");
if (HasGFNI)
Builder.defineMacro("__GFNI__");
if (HasAVX512CD)
Builder.defineMacro("__AVX512CD__");
if (HasAVX512VPOPCNTDQ)
Builder.defineMacro("__AVX512VPOPCNTDQ__");
if (HasAVX512VNNI)
Builder.defineMacro("__AVX512VNNI__");
if (HasAVX512BF16)
Builder.defineMacro("__AVX512BF16__");
if (HasAVX512ER)
Builder.defineMacro("__AVX512ER__");
if (HasAVX512PF)
Builder.defineMacro("__AVX512PF__");
if (HasAVX512DQ)
Builder.defineMacro("__AVX512DQ__");
if (HasAVX512BITALG)
Builder.defineMacro("__AVX512BITALG__");
if (HasAVX512BW)
Builder.defineMacro("__AVX512BW__");
if (HasAVX512VL)
Builder.defineMacro("__AVX512VL__");
if (HasAVX512VBMI)
Builder.defineMacro("__AVX512VBMI__");
if (HasAVX512VBMI2)
Builder.defineMacro("__AVX512VBMI2__");
if (HasAVX512IFMA)
Builder.defineMacro("__AVX512IFMA__");
if (HasAVX512VP2INTERSECT)
Builder.defineMacro("__AVX512VP2INTERSECT__");
if (HasSHA)
Builder.defineMacro("__SHA__");
if (HasFXSR)
Builder.defineMacro("__FXSR__");
if (HasXSAVE)
Builder.defineMacro("__XSAVE__");
if (HasXSAVEOPT)
Builder.defineMacro("__XSAVEOPT__");
if (HasXSAVEC)
Builder.defineMacro("__XSAVEC__");
if (HasXSAVES)
Builder.defineMacro("__XSAVES__");
if (HasPKU)
Builder.defineMacro("__PKU__");
if (HasCLFLUSHOPT)
Builder.defineMacro("__CLFLUSHOPT__");
if (HasCLWB)
Builder.defineMacro("__CLWB__");
if (HasWBNOINVD)
Builder.defineMacro("__WBNOINVD__");
if (HasSHSTK)
Builder.defineMacro("__SHSTK__");
if (HasSGX)
Builder.defineMacro("__SGX__");
if (HasPREFETCHWT1)
Builder.defineMacro("__PREFETCHWT1__");
if (HasCLZERO)
Builder.defineMacro("__CLZERO__");
if (HasRDPID)
Builder.defineMacro("__RDPID__");
if (HasCLDEMOTE)
Builder.defineMacro("__CLDEMOTE__");
if (HasWAITPKG)
Builder.defineMacro("__WAITPKG__");
if (HasMOVDIRI)
Builder.defineMacro("__MOVDIRI__");
if (HasMOVDIR64B)
Builder.defineMacro("__MOVDIR64B__");
if (HasPCONFIG)
Builder.defineMacro("__PCONFIG__");
if (HasPTWRITE)
Builder.defineMacro("__PTWRITE__");
if (HasINVPCID)
Builder.defineMacro("__INVPCID__");
if (HasENQCMD)
Builder.defineMacro("__ENQCMD__");
// Each case falls through to the previous one here.
switch (SSELevel) {
case AVX512F:
Builder.defineMacro("__AVX512F__");
LLVM_FALLTHROUGH;
case AVX2:
Builder.defineMacro("__AVX2__");
LLVM_FALLTHROUGH;
case AVX:
Builder.defineMacro("__AVX__");
LLVM_FALLTHROUGH;
case SSE42:
Builder.defineMacro("__SSE4_2__");
LLVM_FALLTHROUGH;
case SSE41:
Builder.defineMacro("__SSE4_1__");
LLVM_FALLTHROUGH;
case SSSE3:
Builder.defineMacro("__SSSE3__");
LLVM_FALLTHROUGH;
case SSE3:
Builder.defineMacro("__SSE3__");
LLVM_FALLTHROUGH;
case SSE2:
Builder.defineMacro("__SSE2__");
Builder.defineMacro("__SSE2_MATH__"); // -mfp-math=sse always implied.
LLVM_FALLTHROUGH;
case SSE1:
Builder.defineMacro("__SSE__");
Builder.defineMacro("__SSE_MATH__"); // -mfp-math=sse always implied.
LLVM_FALLTHROUGH;
case NoSSE:
break;
}
if (Opts.MicrosoftExt && getTriple().getArch() == llvm::Triple::x86) {
switch (SSELevel) {
case AVX512F:
case AVX2:
case AVX:
case SSE42:
case SSE41:
case SSSE3:
case SSE3:
case SSE2:
Builder.defineMacro("_M_IX86_FP", Twine(2));
break;
case SSE1:
Builder.defineMacro("_M_IX86_FP", Twine(1));
break;
default:
Builder.defineMacro("_M_IX86_FP", Twine(0));
break;
}
}
// Each case falls through to the previous one here.
switch (MMX3DNowLevel) {
case AMD3DNowAthlon:
Builder.defineMacro("__3dNOW_A__");
LLVM_FALLTHROUGH;
case AMD3DNow:
Builder.defineMacro("__3dNOW__");
LLVM_FALLTHROUGH;
case MMX:
Builder.defineMacro("__MMX__");
LLVM_FALLTHROUGH;
case NoMMX3DNow:
break;
}
if (CPU >= CK_i486 || CPU == CK_Generic) {
Builder.defineMacro("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_1");
Builder.defineMacro("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_2");
Builder.defineMacro("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4");
}
if (HasCX8)
Builder.defineMacro("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_8");
if (HasCX16 && getTriple().getArch() == llvm::Triple::x86_64)
Builder.defineMacro("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_16");
if (HasFloat128)
Builder.defineMacro("__SIZEOF_FLOAT128__", "16");
}
bool X86TargetInfo::isValidFeatureName(StringRef Name) const {
return llvm::StringSwitch<bool>(Name)
.Case("3dnow", true)
.Case("3dnowa", true)
.Case("adx", true)
.Case("aes", true)
.Case("avx", true)
.Case("avx2", true)
.Case("avx512f", true)
.Case("avx512cd", true)
.Case("avx512vpopcntdq", true)
.Case("avx512vnni", true)
.Case("avx512bf16", true)
.Case("avx512er", true)
.Case("avx512pf", true)
.Case("avx512dq", true)
.Case("avx512bitalg", true)
.Case("avx512bw", true)
.Case("avx512vl", true)
.Case("avx512vbmi", true)
.Case("avx512vbmi2", true)
.Case("avx512ifma", true)
.Case("avx512vp2intersect", true)
.Case("bmi", true)
.Case("bmi2", true)
.Case("cldemote", true)
.Case("clflushopt", true)
.Case("clwb", true)
.Case("clzero", true)
.Case("cx16", true)
.Case("enqcmd", true)
.Case("f16c", true)
.Case("fma", true)
.Case("fma4", true)
.Case("fsgsbase", true)
.Case("fxsr", true)
.Case("gfni", true)
.Case("invpcid", true)
.Case("lwp", true)
.Case("lzcnt", true)
.Case("mmx", true)
.Case("movbe", true)
.Case("movdiri", true)
.Case("movdir64b", true)
.Case("mwaitx", true)
.Case("pclmul", true)
.Case("pconfig", true)
.Case("pku", true)
.Case("popcnt", true)
.Case("prefetchwt1", true)
.Case("prfchw", true)
.Case("ptwrite", true)
.Case("rdpid", true)
.Case("rdrnd", true)
.Case("rdseed", true)
.Case("rtm", true)
.Case("sahf", true)
.Case("sgx", true)
.Case("sha", true)
.Case("shstk", true)
.Case("sse", true)
.Case("sse2", true)
.Case("sse3", true)
.Case("ssse3", true)
.Case("sse4", true)
.Case("sse4.1", true)
.Case("sse4.2", true)
.Case("sse4a", true)
.Case("tbm", true)
.Case("vaes", true)
.Case("vpclmulqdq", true)
.Case("wbnoinvd", true)
.Case("waitpkg", true)
.Case("x87", true)
.Case("xop", true)
.Case("xsave", true)
.Case("xsavec", true)
.Case("xsaves", true)
.Case("xsaveopt", true)
.Default(false);
}
bool X86TargetInfo::hasFeature(StringRef Feature) const {
return llvm::StringSwitch<bool>(Feature)
.Case("adx", HasADX)
.Case("aes", HasAES)
.Case("avx", SSELevel >= AVX)
.Case("avx2", SSELevel >= AVX2)
.Case("avx512f", SSELevel >= AVX512F)
.Case("avx512cd", HasAVX512CD)
.Case("avx512vpopcntdq", HasAVX512VPOPCNTDQ)
.Case("avx512vnni", HasAVX512VNNI)
.Case("avx512bf16", HasAVX512BF16)
.Case("avx512er", HasAVX512ER)
.Case("avx512pf", HasAVX512PF)
.Case("avx512dq", HasAVX512DQ)
.Case("avx512bitalg", HasAVX512BITALG)
.Case("avx512bw", HasAVX512BW)
.Case("avx512vl", HasAVX512VL)
.Case("avx512vbmi", HasAVX512VBMI)
.Case("avx512vbmi2", HasAVX512VBMI2)
.Case("avx512ifma", HasAVX512IFMA)
.Case("avx512vp2intersect", HasAVX512VP2INTERSECT)
.Case("bmi", HasBMI)
.Case("bmi2", HasBMI2)
.Case("cldemote", HasCLDEMOTE)
.Case("clflushopt", HasCLFLUSHOPT)
.Case("clwb", HasCLWB)
.Case("clzero", HasCLZERO)
.Case("cx8", HasCX8)
.Case("cx16", HasCX16)
.Case("enqcmd", HasENQCMD)
.Case("f16c", HasF16C)
.Case("fma", HasFMA)
.Case("fma4", XOPLevel >= FMA4)
.Case("fsgsbase", HasFSGSBASE)
.Case("fxsr", HasFXSR)
.Case("gfni", HasGFNI)
.Case("invpcid", HasINVPCID)
.Case("lwp", HasLWP)
.Case("lzcnt", HasLZCNT)
.Case("mm3dnow", MMX3DNowLevel >= AMD3DNow)
.Case("mm3dnowa", MMX3DNowLevel >= AMD3DNowAthlon)
.Case("mmx", MMX3DNowLevel >= MMX)
.Case("movbe", HasMOVBE)
.Case("movdiri", HasMOVDIRI)
.Case("movdir64b", HasMOVDIR64B)
.Case("mwaitx", HasMWAITX)
.Case("pclmul", HasPCLMUL)
.Case("pconfig", HasPCONFIG)
.Case("pku", HasPKU)
.Case("popcnt", HasPOPCNT)
.Case("prefetchwt1", HasPREFETCHWT1)
.Case("prfchw", HasPRFCHW)
.Case("ptwrite", HasPTWRITE)
.Case("rdpid", HasRDPID)
.Case("rdrnd", HasRDRND)
.Case("rdseed", HasRDSEED)
.Case("retpoline-external-thunk", HasRetpolineExternalThunk)
.Case("rtm", HasRTM)
.Case("sahf", HasLAHFSAHF)
.Case("sgx", HasSGX)
.Case("sha", HasSHA)
.Case("shstk", HasSHSTK)
.Case("sse", SSELevel >= SSE1)
.Case("sse2", SSELevel >= SSE2)
.Case("sse3", SSELevel >= SSE3)
.Case("ssse3", SSELevel >= SSSE3)
.Case("sse4.1", SSELevel >= SSE41)
.Case("sse4.2", SSELevel >= SSE42)
.Case("sse4a", XOPLevel >= SSE4A)
.Case("tbm", HasTBM)
.Case("vaes", HasVAES)
.Case("vpclmulqdq", HasVPCLMULQDQ)
.Case("wbnoinvd", HasWBNOINVD)
.Case("waitpkg", HasWAITPKG)
.Case("x86", true)
.Case("x86_32", getTriple().getArch() == llvm::Triple::x86)
.Case("x86_64", getTriple().getArch() == llvm::Triple::x86_64)
.Case("xop", XOPLevel >= XOP)
.Case("xsave", HasXSAVE)
.Case("xsavec", HasXSAVEC)
.Case("xsaves", HasXSAVES)
.Case("xsaveopt", HasXSAVEOPT)
.Default(false);
}
// We can't use a generic validation scheme for the features accepted here
// versus subtarget features accepted in the target attribute because the
// bitfield structure that's initialized in the runtime only supports the
// below currently rather than the full range of subtarget features. (See
// X86TargetInfo::hasFeature for a somewhat comprehensive list).
bool X86TargetInfo::validateCpuSupports(StringRef FeatureStr) const {
return llvm::StringSwitch<bool>(FeatureStr)
#define X86_FEATURE_COMPAT(VAL, ENUM, STR) .Case(STR, true)
#include "llvm/Support/X86TargetParser.def"
.Default(false);
}
static llvm::X86::ProcessorFeatures getFeature(StringRef Name) {
return llvm::StringSwitch<llvm::X86::ProcessorFeatures>(Name)
#define X86_FEATURE_COMPAT(VAL, ENUM, STR) .Case(STR, llvm::X86::ENUM)
#include "llvm/Support/X86TargetParser.def"
;
// Note, this function should only be used after ensuring the value is
// correct, so it asserts if the value is out of range.
}
static unsigned getFeaturePriority(llvm::X86::ProcessorFeatures Feat) {
enum class FeatPriority {
#define FEATURE(FEAT) FEAT,
#include "clang/Basic/X86Target.def"
};
switch (Feat) {
#define FEATURE(FEAT) \
case llvm::X86::FEAT: \
return static_cast<unsigned>(FeatPriority::FEAT);
#include "clang/Basic/X86Target.def"
default:
llvm_unreachable("No Feature Priority for non-CPUSupports Features");
}
}
unsigned X86TargetInfo::multiVersionSortPriority(StringRef Name) const {
// Valid CPUs have a 'key feature' that compares just better than its key
// feature.
CPUKind Kind = getCPUKind(Name);
if (Kind != CK_Generic) {
switch (Kind) {
default:
llvm_unreachable(
"CPU Type without a key feature used in 'target' attribute");
#define PROC_WITH_FEAT(ENUM, STR, IS64, KEY_FEAT) \
case CK_##ENUM: \
return (getFeaturePriority(llvm::X86::KEY_FEAT) << 1) + 1;
#include "clang/Basic/X86Target.def"
}
}
// Now we know we have a feature, so get its priority and shift it a few so
// that we have sufficient room for the CPUs (above).
return getFeaturePriority(getFeature(Name)) << 1;
}
bool X86TargetInfo::validateCPUSpecificCPUDispatch(StringRef Name) const {
return llvm::StringSwitch<bool>(Name)
#define CPU_SPECIFIC(NAME, MANGLING, FEATURES) .Case(NAME, true)
#define CPU_SPECIFIC_ALIAS(NEW_NAME, NAME) .Case(NEW_NAME, true)
#include "clang/Basic/X86Target.def"
.Default(false);
}
static StringRef CPUSpecificCPUDispatchNameDealias(StringRef Name) {
return llvm::StringSwitch<StringRef>(Name)
#define CPU_SPECIFIC_ALIAS(NEW_NAME, NAME) .Case(NEW_NAME, NAME)
#include "clang/Basic/X86Target.def"
.Default(Name);
}
char X86TargetInfo::CPUSpecificManglingCharacter(StringRef Name) const {
return llvm::StringSwitch<char>(CPUSpecificCPUDispatchNameDealias(Name))
#define CPU_SPECIFIC(NAME, MANGLING, FEATURES) .Case(NAME, MANGLING)
#include "clang/Basic/X86Target.def"
.Default(0);
}
void X86TargetInfo::getCPUSpecificCPUDispatchFeatures(
StringRef Name, llvm::SmallVectorImpl<StringRef> &Features) const {
StringRef WholeList =
llvm::StringSwitch<StringRef>(CPUSpecificCPUDispatchNameDealias(Name))
#define CPU_SPECIFIC(NAME, MANGLING, FEATURES) .Case(NAME, FEATURES)
#include "clang/Basic/X86Target.def"
.Default("");
WholeList.split(Features, ',', /*MaxSplit=*/-1, /*KeepEmpty=*/false);
}
// We can't use a generic validation scheme for the cpus accepted here
// versus subtarget cpus accepted in the target attribute because the
// variables intitialized by the runtime only support the below currently
// rather than the full range of cpus.
bool X86TargetInfo::validateCpuIs(StringRef FeatureStr) const {
return llvm::StringSwitch<bool>(FeatureStr)
#define X86_VENDOR(ENUM, STRING) .Case(STRING, true)
#define X86_CPU_TYPE_COMPAT_WITH_ALIAS(ARCHNAME, ENUM, STR, ALIAS) \
.Cases(STR, ALIAS, true)
#define X86_CPU_TYPE_COMPAT(ARCHNAME, ENUM, STR) .Case(STR, true)
#define X86_CPU_SUBTYPE_COMPAT(ARCHNAME, ENUM, STR) .Case(STR, true)
#include "llvm/Support/X86TargetParser.def"
.Default(false);
}
static unsigned matchAsmCCConstraint(const char *&Name) {
auto RV = llvm::StringSwitch<unsigned>(Name)
.Case("@cca", 4)
.Case("@ccae", 5)
.Case("@ccb", 4)
.Case("@ccbe", 5)
.Case("@ccc", 4)
.Case("@cce", 4)
.Case("@ccz", 4)
.Case("@ccg", 4)
.Case("@ccge", 5)
.Case("@ccl", 4)
.Case("@ccle", 5)
.Case("@ccna", 5)
.Case("@ccnae", 6)
.Case("@ccnb", 5)
.Case("@ccnbe", 6)
.Case("@ccnc", 5)
.Case("@ccne", 5)
.Case("@ccnz", 5)
.Case("@ccng", 5)
.Case("@ccnge", 6)
.Case("@ccnl", 5)
.Case("@ccnle", 6)
.Case("@ccno", 5)
.Case("@ccnp", 5)
.Case("@ccns", 5)
.Case("@cco", 4)
.Case("@ccp", 4)
.Case("@ccs", 4)
.Default(0);
return RV;
}
bool X86TargetInfo::validateAsmConstraint(
const char *&Name, TargetInfo::ConstraintInfo &Info) const {
switch (*Name) {
default:
return false;
// Constant constraints.
case 'e': // 32-bit signed integer constant for use with sign-extending x86_64
// instructions.
case 'Z': // 32-bit unsigned integer constant for use with zero-extending
// x86_64 instructions.
case 's':
Info.setRequiresImmediate();
return true;
case 'I':
Info.setRequiresImmediate(0, 31);
return true;
case 'J':
Info.setRequiresImmediate(0, 63);
return true;
case 'K':
Info.setRequiresImmediate(-128, 127);
return true;
case 'L':
Info.setRequiresImmediate({int(0xff), int(0xffff), int(0xffffffff)});
return true;
case 'M':
Info.setRequiresImmediate(0, 3);
return true;
case 'N':
Info.setRequiresImmediate(0, 255);
return true;
case 'O':
Info.setRequiresImmediate(0, 127);
return true;
// Register constraints.
case 'Y': // 'Y' is the first character for several 2-character constraints.
// Shift the pointer to the second character of the constraint.
Name++;
switch (*Name) {
default:
return false;
case 'z':
case '0': // First SSE register.
case '2':
case 't': // Any SSE register, when SSE2 is enabled.
case 'i': // Any SSE register, when SSE2 and inter-unit moves enabled.
case 'm': // Any MMX register, when inter-unit moves enabled.
case 'k': // AVX512 arch mask registers: k1-k7.
Info.setAllowsRegister();
return true;
}
case 'f': // Any x87 floating point stack register.
// Constraint 'f' cannot be used for output operands.
if (Info.ConstraintStr[0] == '=')
return false;
Info.setAllowsRegister();
return true;
case 'a': // eax.
case 'b': // ebx.
case 'c': // ecx.
case 'd': // edx.
case 'S': // esi.
case 'D': // edi.
case 'A': // edx:eax.
case 't': // Top of floating point stack.
case 'u': // Second from top of floating point stack.
case 'q': // Any register accessible as [r]l: a, b, c, and d.
case 'y': // Any MMX register.
case 'v': // Any {X,Y,Z}MM register (Arch & context dependent)
case 'x': // Any SSE register.
case 'k': // Any AVX512 mask register (same as Yk, additionally allows k0
// for intermideate k reg operations).
case 'Q': // Any register accessible as [r]h: a, b, c, and d.
case 'R': // "Legacy" registers: ax, bx, cx, dx, di, si, sp, bp.
case 'l': // "Index" registers: any general register that can be used as an
// index in a base+index memory access.
Info.setAllowsRegister();
return true;
// Floating point constant constraints.
case 'C': // SSE floating point constant.
case 'G': // x87 floating point constant.
return true;
case '@':
// CC condition changes.
if (auto Len = matchAsmCCConstraint(Name)) {
Name += Len - 1;
Info.setAllowsRegister();
return true;
}
return false;
}
}
bool X86TargetInfo::validateOutputSize(const llvm::StringMap<bool> &FeatureMap,
StringRef Constraint,
unsigned Size) const {
// Strip off constraint modifiers.
while (Constraint[0] == '=' || Constraint[0] == '+' || Constraint[0] == '&')
Constraint = Constraint.substr(1);
return validateOperandSize(FeatureMap, Constraint, Size);
}
bool X86TargetInfo::validateInputSize(const llvm::StringMap<bool> &FeatureMap,
StringRef Constraint,
unsigned Size) const {
return validateOperandSize(FeatureMap, Constraint, Size);
}
bool X86TargetInfo::validateOperandSize(const llvm::StringMap<bool> &FeatureMap,
StringRef Constraint,
unsigned Size) const {
switch (Constraint[0]) {
default:
break;
case 'k':
// Registers k0-k7 (AVX512) size limit is 64 bit.
case 'y':
return Size <= 64;
case 'f':
case 't':
case 'u':
return Size <= 128;
case 'Y':
// 'Y' is the first character for several 2-character constraints.
switch (Constraint[1]) {
default:
return false;
case 'm':
// 'Ym' is synonymous with 'y'.
case 'k':
return Size <= 64;
case 'z':
case '0':
// XMM0
if (FeatureMap.lookup("sse"))
return Size <= 128U;
return false;
case 'i':
case 't':
case '2':
// 'Yi','Yt','Y2' are synonymous with 'x' when SSE2 is enabled.
if (SSELevel < SSE2)
return false;
break;
}
LLVM_FALLTHROUGH;
case 'v':
case 'x':
if (FeatureMap.lookup("avx512f"))
// 512-bit zmm registers can be used if target supports AVX512F.
return Size <= 512U;
else if (FeatureMap.lookup("avx"))
// 256-bit ymm registers can be used if target supports AVX.
return Size <= 256U;
return Size <= 128U;
}
return true;
}
std::string X86TargetInfo::convertConstraint(const char *&Constraint) const {
switch (*Constraint) {
case '@':
if (auto Len = matchAsmCCConstraint(Constraint)) {
std::string Converted = "{" + std::string(Constraint, Len) + "}";
Constraint += Len - 1;
return Converted;
}
return std::string(1, *Constraint);
case 'a':
return std::string("{ax}");
case 'b':
return std::string("{bx}");
case 'c':
return std::string("{cx}");
case 'd':
return std::string("{dx}");
case 'S':
return std::string("{si}");
case 'D':
return std::string("{di}");
case 'p': // address
return std::string("im");
case 't': // top of floating point stack.
return std::string("{st}");
case 'u': // second from top of floating point stack.
return std::string("{st(1)}"); // second from top of floating point stack.
case 'Y':
switch (Constraint[1]) {
default:
// Break from inner switch and fall through (copy single char),
// continue parsing after copying the current constraint into
// the return string.
break;
case 'k':
case 'm':
case 'i':
case 't':
case 'z':
case '0':
case '2':
// "^" hints llvm that this is a 2 letter constraint.
// "Constraint++" is used to promote the string iterator
// to the next constraint.
return std::string("^") + std::string(Constraint++, 2);
}
LLVM_FALLTHROUGH;
default:
return std::string(1, *Constraint);
}
}
bool X86TargetInfo::checkCPUKind(CPUKind Kind) const {
// Perform any per-CPU checks necessary to determine if this CPU is
// acceptable.
switch (Kind) {
case CK_Generic:
// No processor selected!
return false;
#define PROC(ENUM, STRING, IS64BIT) \
case CK_##ENUM: \
return IS64BIT || getTriple().getArch() == llvm::Triple::x86;
#include "clang/Basic/X86Target.def"
}
llvm_unreachable("Unhandled CPU kind");
}
void X86TargetInfo::fillValidCPUList(SmallVectorImpl<StringRef> &Values) const {
#define PROC(ENUM, STRING, IS64BIT) \
if (IS64BIT || getTriple().getArch() == llvm::Triple::x86) \
Values.emplace_back(STRING);
// For aliases we need to lookup the CPUKind to check get the 64-bit ness.
#define PROC_ALIAS(ENUM, ALIAS) \
if (checkCPUKind(CK_##ENUM)) \
Values.emplace_back(ALIAS);
#include "clang/Basic/X86Target.def"
}
X86TargetInfo::CPUKind X86TargetInfo::getCPUKind(StringRef CPU) const {
return llvm::StringSwitch<CPUKind>(CPU)
#define PROC(ENUM, STRING, IS64BIT) .Case(STRING, CK_##ENUM)
#define PROC_ALIAS(ENUM, ALIAS) .Case(ALIAS, CK_##ENUM)
#include "clang/Basic/X86Target.def"
.Default(CK_Generic);
}
ArrayRef<const char *> X86TargetInfo::getGCCRegNames() const {
return llvm::makeArrayRef(GCCRegNames);
}
ArrayRef<TargetInfo::AddlRegName> X86TargetInfo::getGCCAddlRegNames() const {
return llvm::makeArrayRef(AddlRegNames);
}
ArrayRef<Builtin::Info> X86_32TargetInfo::getTargetBuiltins() const {
return llvm::makeArrayRef(BuiltinInfoX86, clang::X86::LastX86CommonBuiltin -
Builtin::FirstTSBuiltin + 1);
}
ArrayRef<Builtin::Info> X86_64TargetInfo::getTargetBuiltins() const {
return llvm::makeArrayRef(BuiltinInfoX86,
X86::LastTSBuiltin - Builtin::FirstTSBuiltin);
}
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