diff options
Diffstat (limited to 'lib/Target/X86/X86Subtarget.cpp')
| -rw-r--r-- | lib/Target/X86/X86Subtarget.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/Target/X86/X86Subtarget.cpp b/lib/Target/X86/X86Subtarget.cpp index 4130637a65..8fd3a27002 100644 --- a/lib/Target/X86/X86Subtarget.cpp +++ b/lib/Target/X86/X86Subtarget.cpp @@ -302,6 +302,10 @@ void X86Subtarget::AutoDetectSubtargetFeatures() { HasBMI2 = true; ToggleFeature(X86::FeatureBMI2); } + if (IsIntel && ((EBX >> 11) & 0x1)) { + HasRTM = true; + ToggleFeature(X86::FeatureRTM); + } } } } @@ -330,6 +334,7 @@ X86Subtarget::X86Subtarget(const std::string &TT, const std::string &CPU, , HasLZCNT(false) , HasBMI(false) , HasBMI2(false) + , HasRTM(false) , IsBTMemSlow(false) , IsUAMemFast(false) , HasVectorUAMem(false) |