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| author | Craig Topper <craig.topper@gmail.com> | 2012-06-01 06:10:14 +0000 |
|---|---|---|
| committer | Craig Topper <craig.topper@gmail.com> | 2012-06-01 06:10:14 +0000 |
| commit | 1d4d62d76c1d4d387434278e0642531ac93bab8f (patch) | |
| tree | 4a36a13930bd2a6576204e651c7a59c4bf0b3d2b | |
| parent | 00649d511164b31ac976db90eb310c2776c1c060 (diff) | |
| download | bcm5719-llvm-1d4d62d76c1d4d387434278e0642531ac93bab8f.tar.gz bcm5719-llvm-1d4d62d76c1d4d387434278e0642531ac93bab8f.zip | |
Enable automatic detection of FMA3 support to allow intrinsics to be used.
llvm-svn: 157805
| -rw-r--r-- | llvm/lib/Target/X86/X86Subtarget.cpp | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/llvm/lib/Target/X86/X86Subtarget.cpp b/llvm/lib/Target/X86/X86Subtarget.cpp index 962364bda4c..3b60be532e7 100644 --- a/llvm/lib/Target/X86/X86Subtarget.cpp +++ b/llvm/lib/Target/X86/X86Subtarget.cpp @@ -205,12 +205,10 @@ void X86Subtarget::AutoDetectSubtargetFeatures() { HasPCLMUL = true; ToggleFeature(X86::FeaturePCLMUL); } - // FMA3 autodetection is switched off until we have a special flag - // in code generator - //if ((ECX >> 12) & 0x1) { - // HasFMA3 = true; - // ToggleFeature(X86::FeatureFMA3); - //} + if ((ECX >> 12) & 0x1) { + HasFMA3 = true; + ToggleFeature(X86::FeatureFMA3); + } if (IsIntel && ((ECX >> 22) & 0x1)) { HasMOVBE = true; ToggleFeature(X86::FeatureMOVBE); |
