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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. 

llvm-svn: 190920
This commit is contained in:
Craig Topper 2013-09-18 06:01:53 +00:00
parent a8442344ed
commit 358c7989b1
1 changed files with 2 additions and 2 deletions
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4
llvm/lib/Target/X86/X86Subtarget.cpp
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@ -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;