diff options
Diffstat (limited to 'llvm/lib/Support/Host.cpp')
| -rw-r--r-- | llvm/lib/Support/Host.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/lib/Support/Host.cpp b/llvm/lib/Support/Host.cpp index d13aa8d5b1a..9981bcc75f0 100644 --- a/llvm/lib/Support/Host.cpp +++ b/llvm/lib/Support/Host.cpp @@ -1286,6 +1286,11 @@ bool sys::getHostCPUFeatures(StringMap<bool> &Features) { Features["xsavec"] = HasLeafD && ((EAX >> 1) & 1) && HasAVXSave; Features["xsaves"] = HasLeafD && ((EAX >> 3) & 1) && HasAVXSave; + bool HasLeaf14 = MaxLevel >= 0x14 && + !getX86CpuIDAndInfoEx(0x14, 0x0, &EAX, &EBX, &ECX, &EDX); + + Features["ptwrite"] = HasLeaf14 && ((EBX >> 4) & 1); + return true; } #elif defined(__linux__) && (defined(__arm__) || defined(__aarch64__)) |
