diff options
Diffstat (limited to 'llvm/lib/Support/Host.cpp')
| -rw-r--r-- | llvm/lib/Support/Host.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/lib/Support/Host.cpp b/llvm/lib/Support/Host.cpp index 35c51f7..7e7298b 100644 --- a/llvm/lib/Support/Host.cpp +++ b/llvm/lib/Support/Host.cpp @@ -252,6 +252,7 @@ StringRef sys::getHostCPUName() { GetX86CpuIDAndInfo(0x80000001, &EAX, &EBX, &ECX, &EDX); bool Em64T = (EDX >> 29) & 0x1; bool HasTBM = (ECX >> 21) & 0x1; + bool HasMWAITX = (ECX >> 29) & 0x1; if (memcmp(text.c, "GenuineIntel", 12) == 0) { switch (Family) { @@ -803,6 +804,7 @@ bool sys::getHostCPUFeatures(StringMap<bool> &Features) { Features["xop"] = HasExtLeaf1 && ((ECX >> 11) & 1) && HasAVXSave; Features["fma4"] = HasExtLeaf1 && ((ECX >> 16) & 1) && HasAVXSave; Features["tbm"] = HasExtLeaf1 && ((ECX >> 21) & 1); + Features["mwaitx"] = HasExtLeaf1 && ((ECX >> 29) & 1); bool HasLeaf7 = MaxLevel >= 7 && !GetX86CpuIDAndInfoEx(0x7, 0x0, &EAX, &EBX, &ECX, &EDX); |