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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 | 14f094bb2b1d72266d8d29daddb27ec3b1be5e14 (patch) | |
| tree | 9d8c576147996a58985a33f22a558188bb2df8a1 /lib/Target/X86/X86Subtarget.cpp | |
| parent | 3a8172ad8d991d71620fc0075a4cc6afc168756f (diff) | |
| download | llvm-14f094bb2b1d72266d8d29daddb27ec3b1be5e14.tar.gz llvm-14f094bb2b1d72266d8d29daddb27ec3b1be5e14.tar.bz2 llvm-14f094bb2b1d72266d8d29daddb27ec3b1be5e14.tar.xz | |
Enable automatic detection of FMA3 support to allow intrinsics to be used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157805 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/X86Subtarget.cpp')
| -rw-r--r-- | lib/Target/X86/X86Subtarget.cpp | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/lib/Target/X86/X86Subtarget.cpp b/lib/Target/X86/X86Subtarget.cpp index 962364bda4..3b60be532e 100644 --- a/lib/Target/X86/X86Subtarget.cpp +++ b/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); |