911 changes: 650 additions & 261 deletions llvm/lib/Support/Host.cpp
View file
Original file line number Diff line number Diff line change
Expand Up @@ -73,6 +73,102 @@ static ssize_t LLVM_ATTRIBUTE_UNUSED readCpuInfo(void *Buf, size_t Size) {
defined(_M_IX86) || defined(__x86_64__) || defined(_M_AMD64) || \
defined(_M_X64)

enum VendorSignatures {
SIG_INTEL = 0x756e6547 /* Genu */,
SIG_AMD = 0x68747541 /* Auth */
};

enum ProcessorVendors {
VENDOR_INTEL = 1,
VENDOR_AMD,
VENDOR_OTHER,
VENDOR_MAX
};

enum ProcessorTypes {
INTEL_ATOM = 1,
INTEL_CORE2,
INTEL_COREI7,
AMDFAM10H,
AMDFAM15H,
INTEL_i386,
INTEL_i486,
INTEL_PENTIUM,
INTEL_PENTIUM_PRO,
INTEL_PENTIUM_II,
INTEL_PENTIUM_III,
INTEL_PENTIUM_IV,
INTEL_PENTIUM_M,
INTEL_CORE_DUO,
INTEL_XEONPHI,
INTEL_X86_64,
INTEL_NOCONA,
INTEL_PRESCOTT,
AMD_i486,
AMDPENTIUM,
AMDATHLON,
AMDFAM14H,
AMDFAM16H,
CPU_TYPE_MAX
};

enum ProcessorSubtypes {
INTEL_COREI7_NEHALEM = 1,
INTEL_COREI7_WESTMERE,
INTEL_COREI7_SANDYBRIDGE,
AMDFAM10H_BARCELONA,
AMDFAM10H_SHANGHAI,
AMDFAM10H_ISTANBUL,
AMDFAM15H_BDVER1,
AMDFAM15H_BDVER2,
INTEL_PENTIUM_MMX,
INTEL_CORE2_65,
INTEL_CORE2_45,
INTEL_COREI7_IVYBRIDGE,
INTEL_COREI7_HASWELL,
INTEL_COREI7_BROADWELL,
INTEL_COREI7_SKYLAKE,
INTEL_COREI7_SKYLAKE_AVX512,
INTEL_ATOM_BONNELL,
INTEL_ATOM_SILVERMONT,
INTEL_KNIGHTS_LANDING,
AMDPENTIUM_K6,
AMDPENTIUM_K62,
AMDPENTIUM_K63,
AMDPENTIUM_GEODE,
AMDATHLON_TBIRD,
AMDATHLON_MP,
AMDATHLON_XP,
AMDATHLON_K8SSE3,
AMDATHLON_OPTERON,
AMDATHLON_FX,
AMDATHLON_64,
AMD_BTVER1,
AMD_BTVER2,
AMDFAM15H_BDVER3,
AMDFAM15H_BDVER4,
CPU_SUBTYPE_MAX
};

enum ProcessorFeatures {
FEATURE_CMOV = 0,
FEATURE_MMX,
FEATURE_POPCNT,
FEATURE_SSE,
FEATURE_SSE2,
FEATURE_SSE3,
FEATURE_SSSE3,
FEATURE_SSE4_1,
FEATURE_SSE4_2,
FEATURE_AVX,
FEATURE_AVX2,
FEATURE_AVX512,
FEATURE_AVX512SAVE,
FEATURE_MOVBE,
FEATURE_ADX,
FEATURE_EM64T
};

/// getX86CpuIDAndInfo - Execute the specified cpuid and return the 4 values in
/// the specified arguments. If we can't run cpuid on the host, return true.
static bool getX86CpuIDAndInfo(unsigned value, unsigned *rEAX, unsigned *rEBX,
Expand Down Expand Up @@ -199,30 +295,424 @@ static void detectX86FamilyModel(unsigned EAX, unsigned *Family,
}
}

StringRef sys::getHostCPUName() {
unsigned EAX = 0, EBX = 0, ECX = 0, EDX = 0;
if (getX86CpuIDAndInfo(0x1, &EAX, &EBX, &ECX, &EDX))
return "generic";
unsigned Family = 0;
unsigned Model = 0;
detectX86FamilyModel(EAX, &Family, &Model);
static void
getIntelProcessorTypeAndSubtype(unsigned int Family, unsigned int Model,
unsigned int Brand_id, unsigned int Features,
unsigned *Type, unsigned *Subtype) {
if (Brand_id != 0)
return;
switch (Family) {
case 3:
*Type = INTEL_i386;
break;
case 4:
switch (Model) {
case 0: // Intel486 DX processors
case 1: // Intel486 DX processors
case 2: // Intel486 SX processors
case 3: // Intel487 processors, IntelDX2 OverDrive processors,
// IntelDX2 processors
case 4: // Intel486 SL processor
case 5: // IntelSX2 processors
case 7: // Write-Back Enhanced IntelDX2 processors
case 8: // IntelDX4 OverDrive processors, IntelDX4 processors
default:
*Type = INTEL_i486;
break;
}
case 5:
switch (Model) {
case 1: // Pentium OverDrive processor for Pentium processor (60, 66),
// Pentium processors (60, 66)
case 2: // Pentium OverDrive processor for Pentium processor (75, 90,
// 100, 120, 133), Pentium processors (75, 90, 100, 120, 133,
// 150, 166, 200)
case 3: // Pentium OverDrive processors for Intel486 processor-based
// systems
*Type = INTEL_PENTIUM;
break;
case 4: // Pentium OverDrive processor with MMX technology for Pentium
// processor (75, 90, 100, 120, 133), Pentium processor with
// MMX technology (166, 200)
*Type = INTEL_PENTIUM;
*Subtype = INTEL_PENTIUM_MMX;
break;
default:
*Type = INTEL_PENTIUM;
break;
}
case 6:
switch (Model) {
case 0x01: // Pentium Pro processor
*Type = INTEL_PENTIUM_PRO;
break;
case 0x03: // Intel Pentium II OverDrive processor, Pentium II processor,
// model 03
case 0x05: // Pentium II processor, model 05, Pentium II Xeon processor,
// model 05, and Intel Celeron processor, model 05
case 0x06: // Celeron processor, model 06
*Type = INTEL_PENTIUM_II;
break;
case 0x07: // Pentium III processor, model 07, and Pentium III Xeon
// processor, model 07
case 0x08: // Pentium III processor, model 08, Pentium III Xeon processor,
// model 08, and Celeron processor, model 08
case 0x0a: // Pentium III Xeon processor, model 0Ah
case 0x0b: // Pentium III processor, model 0Bh
*Type = INTEL_PENTIUM_III;
break;
case 0x09: // Intel Pentium M processor, Intel Celeron M processor model 09.
case 0x0d: // Intel Pentium M processor, Intel Celeron M processor, model
// 0Dh. All processors are manufactured using the 90 nm process.
case 0x15: // Intel EP80579 Integrated Processor and Intel EP80579
// Integrated Processor with Intel QuickAssist Technology
*Type = INTEL_PENTIUM_M;
break;
case 0x0e: // Intel Core Duo processor, Intel Core Solo processor, model
// 0Eh. All processors are manufactured using the 65 nm process.
*Type = INTEL_CORE_DUO;
break; // yonah
case 0x0f: // Intel Core 2 Duo processor, Intel Core 2 Duo mobile
// processor, Intel Core 2 Quad processor, Intel Core 2 Quad
// mobile processor, Intel Core 2 Extreme processor, Intel
// Pentium Dual-Core processor, Intel Xeon processor, model
// 0Fh. All processors are manufactured using the 65 nm process.
case 0x16: // Intel Celeron processor model 16h. All processors are
// manufactured using the 65 nm process
*Type = INTEL_CORE2; // "core2"
*Subtype = INTEL_CORE2_65;
break;
case 0x17: // Intel Core 2 Extreme processor, Intel Xeon processor, model
// 17h. All processors are manufactured using the 45 nm process.
//
// 45nm: Penryn , Wolfdale, Yorkfield (XE)
case 0x1d: // Intel Xeon processor MP. All processors are manufactured using
// the 45 nm process.
*Type = INTEL_CORE2; // "penryn"
*Subtype = INTEL_CORE2_45;
break;
case 0x1a: // Intel Core i7 processor and Intel Xeon processor. All
// processors are manufactured using the 45 nm process.
case 0x1e: // Intel(R) Core(TM) i7 CPU 870 @ 2.93GHz.
// As found in a Summer 2010 model iMac.
case 0x1f:
case 0x2e: // Nehalem EX
*Type = INTEL_COREI7; // "nehalem"
*Subtype = INTEL_COREI7_NEHALEM;
break;
case 0x25: // Intel Core i7, laptop version.
case 0x2c: // Intel Core i7 processor and Intel Xeon processor. All
// processors are manufactured using the 32 nm process.
case 0x2f: // Westmere EX
*Type = INTEL_COREI7; // "westmere"
*Subtype = INTEL_COREI7_WESTMERE;
break;
case 0x2a: // Intel Core i7 processor. All processors are manufactured
// using the 32 nm process.
case 0x2d:
*Type = INTEL_COREI7; //"sandybridge"
*Subtype = INTEL_COREI7_SANDYBRIDGE;
break;
case 0x3a:
case 0x3e: // Ivy Bridge EP
*Type = INTEL_COREI7; // "ivybridge"
*Subtype = INTEL_COREI7_IVYBRIDGE;
break;

union {
unsigned u[3];
char c[12];
} text;
// Haswell:
case 0x3c:
case 0x3f:
case 0x45:
case 0x46:
*Type = INTEL_COREI7; // "haswell"
*Subtype = INTEL_COREI7_HASWELL;
break;

// Broadwell:
case 0x3d:
case 0x47:
case 0x4f:
case 0x56:
*Type = INTEL_COREI7; // "broadwell"
*Subtype = INTEL_COREI7_BROADWELL;
break;

// Skylake:
case 0x4e:
*Type = INTEL_COREI7; // "skylake-avx512"
*Subtype = INTEL_COREI7_SKYLAKE_AVX512;
break;
case 0x5e:
*Type = INTEL_COREI7; // "skylake"
*Subtype = INTEL_COREI7_SKYLAKE;
break;

case 0x1c: // Most 45 nm Intel Atom processors
case 0x26: // 45 nm Atom Lincroft
case 0x27: // 32 nm Atom Medfield
case 0x35: // 32 nm Atom Midview
case 0x36: // 32 nm Atom Midview
*Type = INTEL_ATOM;
*Subtype = INTEL_ATOM_BONNELL;
break; // "bonnell"

// Atom Silvermont codes from the Intel software optimization guide.
case 0x37:
case 0x4a:
case 0x4d:
case 0x5a:
case 0x5d:
case 0x4c: // really airmont
*Type = INTEL_ATOM;
*Subtype = INTEL_ATOM_SILVERMONT;
break; // "silvermont"

case 0x57:
*Type = INTEL_XEONPHI; // knl
*Subtype = INTEL_KNIGHTS_LANDING;
break;

default: // Unknown family 6 CPU, try to guess.
if (Features & (1 << FEATURE_AVX512)) {
*Type = INTEL_XEONPHI; // knl
*Subtype = INTEL_KNIGHTS_LANDING;
break;
}
if (Features & (1 << FEATURE_ADX)) {
*Type = INTEL_COREI7;
*Subtype = INTEL_COREI7_BROADWELL;
break;
}
if (Features & (1 << FEATURE_AVX2)) {
*Type = INTEL_COREI7;
*Subtype = INTEL_COREI7_HASWELL;
break;
}
if (Features & (1 << FEATURE_AVX)) {
*Type = INTEL_COREI7;
*Subtype = INTEL_COREI7_SANDYBRIDGE;
break;
}
if (Features & (1 << FEATURE_SSE4_2)) {
if (Features & (1 << FEATURE_MOVBE)) {
*Type = INTEL_ATOM;
*Subtype = INTEL_ATOM_SILVERMONT;
} else {
*Type = INTEL_COREI7;
*Subtype = INTEL_COREI7_NEHALEM;
}
break;
}
if (Features & (1 << FEATURE_SSE4_1)) {
*Type = INTEL_CORE2; // "penryn"
*Subtype = INTEL_CORE2_45;
break;
}
if (Features & (1 << FEATURE_SSSE3)) {
if (Features & (1 << FEATURE_MOVBE)) {
*Type = INTEL_ATOM;
*Subtype = INTEL_ATOM_BONNELL; // "bonnell"
} else {
*Type = INTEL_CORE2; // "core2"
*Subtype = INTEL_CORE2_65;
}
break;
}
if (Features & (1 << FEATURE_EM64T)) {
*Type = INTEL_X86_64;
break; // x86-64
}
if (Features & (1 << FEATURE_SSE2)) {
*Type = INTEL_PENTIUM_M;
break;
}
if (Features & (1 << FEATURE_SSE)) {
*Type = INTEL_PENTIUM_III;
break;
}
if (Features & (1 << FEATURE_MMX)) {
*Type = INTEL_PENTIUM_II;
break;
}
*Type = INTEL_PENTIUM_PRO;
break;
}
case 15: {
switch (Model) {
case 0: // Pentium 4 processor, Intel Xeon processor. All processors are
// model 00h and manufactured using the 0.18 micron process.
case 1: // Pentium 4 processor, Intel Xeon processor, Intel Xeon
// processor MP, and Intel Celeron processor. All processors are
// model 01h and manufactured using the 0.18 micron process.
case 2: // Pentium 4 processor, Mobile Intel Pentium 4 processor - M,
// Intel Xeon processor, Intel Xeon processor MP, Intel Celeron
// processor, and Mobile Intel Celeron processor. All processors
// are model 02h and manufactured using the 0.13 micron process.
*Type =
((Features & (1 << FEATURE_EM64T)) ? INTEL_X86_64 : INTEL_PENTIUM_IV);
break;

case 3: // Pentium 4 processor, Intel Xeon processor, Intel Celeron D
// processor. All processors are model 03h and manufactured using
// the 90 nm process.
case 4: // Pentium 4 processor, Pentium 4 processor Extreme Edition,
// Pentium D processor, Intel Xeon processor, Intel Xeon
// processor MP, Intel Celeron D processor. All processors are
// model 04h and manufactured using the 90 nm process.
case 6: // Pentium 4 processor, Pentium D processor, Pentium processor
// Extreme Edition, Intel Xeon processor, Intel Xeon processor
// MP, Intel Celeron D processor. All processors are model 06h
// and manufactured using the 65 nm process.
*Type =
((Features & (1 << FEATURE_EM64T)) ? INTEL_NOCONA : INTEL_PRESCOTT);
break;

default:
*Type =
((Features & (1 << FEATURE_EM64T)) ? INTEL_X86_64 : INTEL_PENTIUM_IV);
break;
}
}
default:
break; /*"generic"*/
}
}

static void getAMDProcessorTypeAndSubtype(unsigned int Family,
unsigned int Model,
unsigned int Features,
unsigned *Type,
unsigned *Subtype) {
// FIXME: this poorly matches the generated SubtargetFeatureKV table. There
// appears to be no way to generate the wide variety of AMD-specific targets
// from the information returned from CPUID.
switch (Family) {
case 4:
*Type = AMD_i486;
case 5:
*Type = AMDPENTIUM;
switch (Model) {
case 6:
case 7:
*Subtype = AMDPENTIUM_K6;
break; // "k6"
case 8:
*Subtype = AMDPENTIUM_K62;
break; // "k6-2"
case 9:
case 13:
*Subtype = AMDPENTIUM_K63;
break; // "k6-3"
case 10:
*Subtype = AMDPENTIUM_GEODE;
break; // "geode"
default:
break;
}
case 6:
*Type = AMDATHLON;
switch (Model) {
case 4:
*Subtype = AMDATHLON_TBIRD;
break; // "athlon-tbird"
case 6:
case 7:
case 8:
*Subtype = AMDATHLON_MP;
break; // "athlon-mp"
case 10:
*Subtype = AMDATHLON_XP;
break; // "athlon-xp"
default:
break;
}
case 15:
*Type = AMDATHLON;
if (Features & (1 << FEATURE_SSE3)) {
*Subtype = AMDATHLON_K8SSE3;
break; // "k8-sse3"
}
switch (Model) {
case 1:
*Subtype = AMDATHLON_OPTERON;
break; // "opteron"
case 5:
*Subtype = AMDATHLON_FX;
break; // "athlon-fx"; also opteron
default:
*Subtype = AMDATHLON_64;
break; // "athlon64"
}
case 16:
*Type = AMDFAM10H; // "amdfam10"
switch (Model) {
case 2:
*Subtype = AMDFAM10H_BARCELONA;
break;
case 4:
*Subtype = AMDFAM10H_SHANGHAI;
break;
case 8:
*Subtype = AMDFAM10H_ISTANBUL;
break;
default:
break;
}
case 20:
*Type = AMDFAM14H;
*Subtype = AMD_BTVER1;
break; // "btver1";
case 21:
*Type = AMDFAM15H;
if (!(Features &
(1 << FEATURE_AVX))) { // If no AVX support, provide a sane fallback.
*Subtype = AMD_BTVER1;
break; // "btver1"
}
if (Model >= 0x50 && Model <= 0x6f) {
*Subtype = AMDFAM15H_BDVER4;
break; // "bdver4"; 50h-6Fh: Excavator
}
if (Model >= 0x30 && Model <= 0x3f) {
*Subtype = AMDFAM15H_BDVER3;
break; // "bdver3"; 30h-3Fh: Steamroller
}
if (Model >= 0x10 && Model <= 0x1f) {
*Subtype = AMDFAM15H_BDVER2;
break; // "bdver2"; 10h-1Fh: Piledriver
}
if (Model <= 0x0f) {
*Subtype = AMDFAM15H_BDVER1;
break; // "bdver1"; 00h-0Fh: Bulldozer
}
break;
case 22:
*Type = AMDFAM16H;
if (!(Features &
(1 << FEATURE_AVX))) { // If no AVX support provide a sane fallback.
*Subtype = AMD_BTVER1;
break; // "btver1";
}
*Subtype = AMD_BTVER2;
break; // "btver2"
default:
break; // "generic"
}
}

unsigned getAvailableFeatures(unsigned int ECX, unsigned int EDX,
unsigned MaxLeaf) {
unsigned Features = 0;
unsigned int EAX, EBX;
Features |= (((EDX >> 23) & 1) << FEATURE_MMX);
Features |= (((EDX >> 25) & 1) << FEATURE_SSE);
Features |= (((EDX >> 26) & 1) << FEATURE_SSE2);
Features |= (((ECX >> 0) & 1) << FEATURE_SSE3);
Features |= (((ECX >> 9) & 1) << FEATURE_SSSE3);
Features |= (((ECX >> 19) & 1) << FEATURE_SSE4_1);
Features |= (((ECX >> 20) & 1) << FEATURE_SSE4_2);
Features |= (((ECX >> 22) & 1) << FEATURE_MOVBE);

unsigned MaxLeaf;
getX86CpuIDAndInfo(0, &MaxLeaf, text.u + 0, text.u + 2, text.u + 1);

bool HasMMX = (EDX >> 23) & 1;
bool HasSSE = (EDX >> 25) & 1;
bool HasSSE2 = (EDX >> 26) & 1;
bool HasSSE3 = (ECX >> 0) & 1;
bool HasSSSE3 = (ECX >> 9) & 1;
bool HasSSE41 = (ECX >> 19) & 1;
bool HasSSE42 = (ECX >> 20) & 1;
bool HasMOVBE = (ECX >> 22) & 1;
// If CPUID indicates support for XSAVE, XRESTORE and AVX, and XGETBV
// indicates that the AVX registers will be saved and restored on context
// switch, then we have full AVX support.
Expand All @@ -235,291 +725,190 @@ StringRef sys::getHostCPUName() {
bool HasADX = HasLeaf7 && ((EBX >> 19) & 1);
bool HasAVX2 = HasAVX && HasLeaf7 && (EBX & 0x20);
bool HasAVX512 = HasLeaf7 && HasAVX512Save && ((EBX >> 16) & 1);
Features |= (HasAVX << FEATURE_AVX);
Features |= (HasAVX2 << FEATURE_AVX2);
Features |= (HasAVX512 << FEATURE_AVX512);
Features |= (HasAVX512Save << FEATURE_AVX512SAVE);
Features |= (HasADX << FEATURE_ADX);

getX86CpuIDAndInfo(0x80000001, &EAX, &EBX, &ECX, &EDX);
bool Em64T = (EDX >> 29) & 0x1;
bool HasTBM = (ECX >> 21) & 0x1;
Features |= (((EDX >> 29) & 0x1) << FEATURE_EM64T);
return Features;
}

if (memcmp(text.c, "GenuineIntel", 12) == 0) {
switch (Family) {
case 3:
return "i386";
case 4:
switch (Model) {
case 0: // Intel486 DX processors
case 1: // Intel486 DX processors
case 2: // Intel486 SX processors
case 3: // Intel487 processors, IntelDX2 OverDrive processors,
// IntelDX2 processors
case 4: // Intel486 SL processor
case 5: // IntelSX2 processors
case 7: // Write-Back Enhanced IntelDX2 processors
case 8: // IntelDX4 OverDrive processors, IntelDX4 processors
default:
return "i486";
}
case 5:
switch (Model) {
case 1: // Pentium OverDrive processor for Pentium processor (60, 66),
// Pentium processors (60, 66)
case 2: // Pentium OverDrive processor for Pentium processor (75, 90,
// 100, 120, 133), Pentium processors (75, 90, 100, 120, 133,
// 150, 166, 200)
case 3: // Pentium OverDrive processors for Intel486 processor-based
// systems
return "pentium";
StringRef sys::getHostCPUName() {
unsigned EAX = 0, EBX = 0, ECX = 0, EDX = 0;
unsigned MaxLeaf, Vendor;

case 4: // Pentium OverDrive processor with MMX technology for Pentium
// processor (75, 90, 100, 120, 133), Pentium processor with
// MMX technology (166, 200)
return "pentium-mmx";
if (getX86CpuIDAndInfo(0, &MaxLeaf, &Vendor, &ECX, &EDX))
return "generic";
if (getX86CpuIDAndInfo(0x1, &EAX, &EBX, &ECX, &EDX))
return "generic";

default:
return "pentium";
}
case 6:
switch (Model) {
case 0x01: // Pentium Pro processor
return "pentiumpro";

case 0x03: // Intel Pentium II OverDrive processor, Pentium II processor,
// model 03
case 0x05: // Pentium II processor, model 05, Pentium II Xeon processor,
// model 05, and Intel Celeron processor, model 05
case 0x06: // Celeron processor, model 06
return "pentium2";

case 0x07: // Pentium III processor, model 07, and Pentium III Xeon
// processor, model 07
case 0x08: // Pentium III processor, model 08, Pentium III Xeon processor,
// model 08, and Celeron processor, model 08
case 0x0a: // Pentium III Xeon processor, model 0Ah
case 0x0b: // Pentium III processor, model 0Bh
return "pentium3";

case 0x09: // Intel Pentium M processor, Intel Celeron M processor model
// 09.
case 0x0d: // Intel Pentium M processor, Intel Celeron M processor, model
// 0Dh. All processors are manufactured using the 90 nm
// process.
case 0x15: // Intel EP80579 Integrated Processor and Intel EP80579
// Integrated Processor with Intel QuickAssist Technology
return "pentium-m";

case 0x0e: // Intel Core Duo processor, Intel Core Solo processor, model
// 0Eh. All processors are manufactured using the 65 nm
// process.
return "yonah";

case 0x0f: // Intel Core 2 Duo processor, Intel Core 2 Duo mobile
// processor, Intel Core 2 Quad processor, Intel Core 2 Quad
// mobile processor, Intel Core 2 Extreme processor, Intel
// Pentium Dual-Core processor, Intel Xeon processor, model
// 0Fh. All processors are manufactured using the 65 nm
// process.
case 0x16: // Intel Celeron processor model 16h. All processors are
// manufactured using the 65 nm process
return "core2";
unsigned Brand_id = EBX & 0xff;
unsigned Family = 0, Model = 0;
unsigned Features = 0;
detectX86FamilyModel(EAX, &Family, &Model);
Features = getAvailableFeatures(ECX, EDX, MaxLeaf);

case 0x17: // Intel Core 2 Extreme processor, Intel Xeon processor, model
// 17h. All processors are manufactured using the 45 nm
// process.
//
// 45nm: Penryn , Wolfdale, Yorkfield (XE)
case 0x1d: // Intel Xeon processor MP. All processors are manufactured
// using
// the 45 nm process.
return "penryn";
unsigned Type;
unsigned Subtype;

case 0x1a: // Intel Core i7 processor and Intel Xeon processor. All
// processors are manufactured using the 45 nm process.
case 0x1e: // Intel(R) Core(TM) i7 CPU 870 @ 2.93GHz.
// As found in a Summer 2010 model iMac.
case 0x2e: // Nehalem EX
if (Vendor == SIG_INTEL) {
getIntelProcessorTypeAndSubtype(Family, Model, Brand_id, Features, &Type,
&Subtype);
switch (Type) {
case INTEL_i386:
return "i386";
case INTEL_i486:
return "i486";
case INTEL_PENTIUM:
if (Subtype == INTEL_PENTIUM_MMX)
return "pentium-mmx";
return "pentium";
case INTEL_PENTIUM_PRO:
return "pentiumpro";
case INTEL_PENTIUM_II:
return "pentium2";
case INTEL_PENTIUM_III:
return "pentium3";
case INTEL_PENTIUM_IV:
return "pentium4";
case INTEL_PENTIUM_M:
return "pentium-m";
case INTEL_CORE_DUO:
return "yonah";
case INTEL_CORE2:
switch (Subtype) {
case INTEL_CORE2_65:
return "core2";
case INTEL_CORE2_45:
return "penryn";
default:
return "core2";
}
case INTEL_COREI7:
switch (Subtype) {
case INTEL_COREI7_NEHALEM:
return "nehalem";
case 0x25: // Intel Core i7, laptop version.
case 0x2c: // Intel Core i7 processor and Intel Xeon processor. All
// processors are manufactured using the 32 nm process.
case 0x2f: // Westmere EX
case INTEL_COREI7_WESTMERE:
return "westmere";

case 0x2a: // Intel Core i7 processor. All processors are manufactured
// using the 32 nm process.
case 0x2d:
case INTEL_COREI7_SANDYBRIDGE:
return "sandybridge";

case 0x3a:
case 0x3e: // Ivy Bridge EP
case INTEL_COREI7_IVYBRIDGE:
return "ivybridge";

// Haswell:
case 0x3c:
case 0x3f:
case 0x45:
case 0x46:
case INTEL_COREI7_HASWELL:
return "haswell";

// Broadwell:
case 0x3d:
case 0x47:
case 0x4f:
case 0x56:
case INTEL_COREI7_BROADWELL:
return "broadwell";

// Skylake:
case 0x4e:
return "skylake-avx512";
case 0x5e:
case INTEL_COREI7_SKYLAKE:
return "skylake";

case 0x1c: // Most 45 nm Intel Atom processors
case 0x26: // 45 nm Atom Lincroft
case 0x27: // 32 nm Atom Medfield
case 0x35: // 32 nm Atom Midview
case 0x36: // 32 nm Atom Midview
case INTEL_COREI7_SKYLAKE_AVX512:
return "skylake-avx512";
default:
return "corei7";
}
case INTEL_ATOM:
switch (Subtype) {
case INTEL_ATOM_BONNELL:
return "bonnell";

// Atom Silvermont codes from the Intel software optimization guide.
case 0x37:
case 0x4a:
case 0x4d:
case 0x5a:
case 0x5d:
case 0x4c: // really airmont
case INTEL_ATOM_SILVERMONT:
return "silvermont";

case 0x57:
return "knl";

default: // Unknown family 6 CPU, try to guess.
if (HasAVX512)
return "knl";
if (HasADX)
return "broadwell";
if (HasAVX2)
return "haswell";
if (HasAVX)
return "sandybridge";
if (HasSSE42)
return HasMOVBE ? "silvermont" : "nehalem";
if (HasSSE41)
return "penryn";
if (HasSSSE3)
return HasMOVBE ? "bonnell" : "core2";
if (Em64T)
return "x86-64";
if (HasSSE2)
return "pentium-m";
if (HasSSE)
return "pentium3";
if (HasMMX)
return "pentium2";
return "pentiumpro";
}
case 15: {
switch (Model) {
case 0: // Pentium 4 processor, Intel Xeon processor. All processors are
// model 00h and manufactured using the 0.18 micron process.
case 1: // Pentium 4 processor, Intel Xeon processor, Intel Xeon
// processor MP, and Intel Celeron processor. All processors are
// model 01h and manufactured using the 0.18 micron process.
case 2: // Pentium 4 processor, Mobile Intel Pentium 4 processor - M,
// Intel Xeon processor, Intel Xeon processor MP, Intel Celeron
// processor, and Mobile Intel Celeron processor. All processors
// are model 02h and manufactured using the 0.13 micron process.
return (Em64T) ? "x86-64" : "pentium4";

case 3: // Pentium 4 processor, Intel Xeon processor, Intel Celeron D
// processor. All processors are model 03h and manufactured using
// the 90 nm process.
case 4: // Pentium 4 processor, Pentium 4 processor Extreme Edition,
// Pentium D processor, Intel Xeon processor, Intel Xeon
// processor MP, Intel Celeron D processor. All processors are
// model 04h and manufactured using the 90 nm process.
case 6: // Pentium 4 processor, Pentium D processor, Pentium processor
// Extreme Edition, Intel Xeon processor, Intel Xeon processor
// MP, Intel Celeron D processor. All processors are model 06h
// and manufactured using the 65 nm process.
return (Em64T) ? "nocona" : "prescott";

default:
return (Em64T) ? "x86-64" : "pentium4";
return "atom";
}
}

case INTEL_XEONPHI:
return "knl"; /*update for more variants added*/
case INTEL_X86_64:
return "x86-64";
case INTEL_NOCONA:
return "nocona";
case INTEL_PRESCOTT:
return "prescott";
default:
return "generic";
}
} else if (memcmp(text.c, "AuthenticAMD", 12) == 0) {
// FIXME: this poorly matches the generated SubtargetFeatureKV table. There
// appears to be no way to generate the wide variety of AMD-specific targets
// from the information returned from CPUID.
switch (Family) {
case 4:
} else if (Vendor == SIG_AMD) {
getAMDProcessorTypeAndSubtype(Family, Model, Features, &Type, &Subtype);
switch (Type) {
case AMD_i486:
return "i486";
case 5:
switch (Model) {
case 6:
case 7:
case AMDPENTIUM:
switch (Subtype) {
case AMDPENTIUM_K6:
return "k6";
case 8:
case AMDPENTIUM_K62:
return "k6-2";
case 9:
case 13:
case AMDPENTIUM_K63:
return "k6-3";
case 10:
case AMDPENTIUM_GEODE:
return "geode";
default:
return "pentium";
}
case 6:
switch (Model) {
case 4:
case AMDATHLON:
switch (Subtype) {
case AMDATHLON_TBIRD:
return "athlon-tbird";
case 6:
case 7:
case 8:
case AMDATHLON_MP:
return "athlon-mp";
case 10:
case AMDATHLON_XP:
return "athlon-xp";
case AMDATHLON_K8SSE3:
return "k8-sse3";
case AMDATHLON_OPTERON:
return "opteron";
case AMDATHLON_FX:
return "athlon-fx";
case AMDATHLON_64:
return "athlon64";
default:
return "athlon";
}
case 15:
if (HasSSE3)
return "k8-sse3";
switch (Model) {
case 1:
return "opteron";
case 5:
return "athlon-fx"; // also opteron
case AMDFAM10H:
switch (Subtype) {
case AMDFAM10H_BARCELONA:
return "amdfam10-barcelona";
case AMDFAM10H_SHANGHAI:
return "amdfam10-shanghai";
case AMDFAM10H_ISTANBUL:
return "amdfam10-istanbul";
default:
return "athlon64";
return "amdfam10";
}
case 16:
return "amdfam10";
case 20:
case AMDFAM14H:
return "btver1";
case 21:
if (!HasAVX) // If the OS doesn't support AVX provide a sane fallback.
case AMDFAM15H:
switch (Subtype) {
case AMDFAM15H_BDVER1:
return "bdver1";
case AMDFAM15H_BDVER2:
return "bdver2";
case AMDFAM15H_BDVER3:
return "bdver3";
case AMDFAM15H_BDVER4:
return "bdver4";
case AMD_BTVER1:
return "btver1";
if (Model >= 0x50)
return "bdver4"; // 50h-6Fh: Excavator
if (Model >= 0x30)
return "bdver3"; // 30h-3Fh: Steamroller
if (Model >= 0x10 || HasTBM)
return "bdver2"; // 10h-1Fh: Piledriver
return "bdver1"; // 00h-0Fh: Bulldozer
case 22:
if (!HasAVX) // If the OS doesn't support AVX provide a sane fallback.
default:
return "amdfam15";
}
case AMDFAM16H:
switch (Subtype) {
case AMD_BTVER1:
return "btver1";
return "btver2";
case AMD_BTVER2:
return "btver2";
default:
return "amdfam16";
}
default:
return "generic";
}
}
return "generic";
}

#elif defined(__APPLE__) && (defined(__ppc__) || defined(__powerpc__))
StringRef sys::getHostCPUName() {
host_basic_info_data_t hostInfo;
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