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Allow BMI, AES, F16C, POPCNT, FMA3, and CLMUL to be detected on AMD processors. 

llvm-svn: 155899
This commit is contained in:
Craig Topper 2012-05-01 07:10:32 +00:00
parent fc079081b7
commit 05eb6e096a
1 changed files with 9 additions and 9 deletions
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18
llvm/lib/Target/X86/X86Subtarget.cpp
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@ -201,11 +201,11 @@ void X86Subtarget::AutoDetectSubtargetFeatures() {
bool IsIntel = memcmp(text.c, "GenuineIntel", 12) == 0;
bool IsAMD = !IsIntel && memcmp(text.c, "AuthenticAMD", 12) == 0;
if (IsIntel && ((ECX >> 1) & 0x1)) {
if ((ECX >> 1) & 0x1) {
HasCLMUL = true;
ToggleFeature(X86::FeatureCLMUL);
}
if (IsIntel && ((ECX >> 12) & 0x1)) {
if ((ECX >> 12) & 0x1) {
HasFMA3 = true;
ToggleFeature(X86::FeatureFMA3);
}
@ -213,15 +213,15 @@ void X86Subtarget::AutoDetectSubtargetFeatures() {
HasMOVBE = true;
ToggleFeature(X86::FeatureMOVBE);
}
if (IsIntel && ((ECX >> 23) & 0x1)) {
if ((ECX >> 23) & 0x1) {
HasPOPCNT = true;
ToggleFeature(X86::FeaturePOPCNT);
}
if (IsIntel && ((ECX >> 25) & 0x1)) {
if ((ECX >> 25) & 0x1) {
HasAES = true;
ToggleFeature(X86::FeatureAES);
}
if (IsIntel && ((ECX >> 29) & 0x1)) {
if ((ECX >> 29) & 0x1) {
HasF16C = true;
ToggleFeature(X86::FeatureF16C);
}
@ -290,9 +290,9 @@ void X86Subtarget::AutoDetectSubtargetFeatures() {
}
}
if (IsIntel && MaxLevel >= 7) {
if (MaxLevel >= 7) {
if (!X86_MC::GetCpuIDAndInfoEx(0x7, 0x0, &EAX, &EBX, &ECX, &EDX)) {
if (EBX & 0x1) {
if (IsIntel && (EBX & 0x1)) {
HasFSGSBase = true;
ToggleFeature(X86::FeatureFSGSBase);
}
@ -300,11 +300,11 @@ void X86Subtarget::AutoDetectSubtargetFeatures() {
HasBMI = true;
ToggleFeature(X86::FeatureBMI);
}
if ((EBX >> 5) & 0x1) {
if (IsIntel && ((EBX >> 5) & 0x1)) {
X86SSELevel = AVX2;
ToggleFeature(X86::FeatureAVX2);
}
if ((EBX >> 8) & 0x1) {
if (IsIntel && ((EBX >> 8) & 0x1)) {
HasBMI2 = true;
ToggleFeature(X86::FeatureBMI2);
}