diff options
| -rw-r--r-- | llvm/lib/Support/Host.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/llvm/lib/Support/Host.cpp b/llvm/lib/Support/Host.cpp index 695683efa62..7945aa5e525 100644 --- a/llvm/lib/Support/Host.cpp +++ b/llvm/lib/Support/Host.cpp @@ -1206,6 +1206,7 @@ bool sys::getHostCPUFeatures(StringMap<bool> &Features) { bool HasExtLeaf1 = MaxExtLevel >= 0x80000001 && !getX86CpuIDAndInfo(0x80000001, &EAX, &EBX, &ECX, &EDX); + Features["sahf"] = HasExtLeaf1 && ((ECX >> 0) & 1); Features["lzcnt"] = HasExtLeaf1 && ((ECX >> 5) & 1); Features["sse4a"] = HasExtLeaf1 && ((ECX >> 6) & 1); Features["prfchw"] = HasExtLeaf1 && ((ECX >> 8) & 1); |
