diff options
| author | Craig Topper <craig.topper@gmail.com> | 2013-09-18 06:01:53 +0000 |
|---|---|---|
| committer | Craig Topper <craig.topper@gmail.com> | 2013-09-18 06:01:53 +0000 |
| commit | 42848553918540e90f77de3c70b5f1ff1dc2be9f (patch) | |
| tree | 32cf64151eb6ce3ea93725561d9528a1de452f1e /lib/Target/X86/X86Subtarget.cpp | |
| parent | 773c07606e61c5090d73ea1317a0d1b0c29ec023 (diff) | |
| download | llvm-42848553918540e90f77de3c70b5f1ff1dc2be9f.tar.gz llvm-42848553918540e90f77de3c70b5f1ff1dc2be9f.tar.bz2 llvm-42848553918540e90f77de3c70b5f1ff1dc2be9f.tar.xz | |
Prevent extra calls to ToggleFeature for Feature64Bit and FeatureCMOV if they've already been enabled. The extra call ends up clearing the bit in FeatureBits since its a 'toggle'. Can't prove that anything was broken because of this since I don't think the FeatureBits for these are used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190920 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/X86Subtarget.cpp')
| -rw-r--r-- | lib/Target/X86/X86Subtarget.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/Target/X86/X86Subtarget.cpp b/lib/Target/X86/X86Subtarget.cpp index ae31bb834b..f5b261428d 100644 --- a/lib/Target/X86/X86Subtarget.cpp +++ b/lib/Target/X86/X86Subtarget.cpp @@ -440,8 +440,8 @@ void X86Subtarget::resetSubtargetFeatures(StringRef CPU, StringRef FS) { // Make sure 64-bit features are available in 64-bit mode. if (In64BitMode) { - HasX86_64 = true; ToggleFeature(X86::Feature64Bit); - HasCMov = true; ToggleFeature(X86::FeatureCMOV); + if (!HasX86_64) { HasX86_64 = true; ToggleFeature(X86::Feature64Bit); } + if (!HasCMov) { HasCMov = true; ToggleFeature(X86::FeatureCMOV); } if (X86SSELevel < SSE2) { X86SSELevel = SSE2; |