diff options
Diffstat (limited to 'llvm/lib/Support/Host.cpp')
| -rw-r--r-- | llvm/lib/Support/Host.cpp | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/llvm/lib/Support/Host.cpp b/llvm/lib/Support/Host.cpp index cb1c82b0145..da918898e2f 100644 --- a/llvm/lib/Support/Host.cpp +++ b/llvm/lib/Support/Host.cpp @@ -769,6 +769,7 @@ bool sys::getHostCPUFeatures(StringMap<bool> &Features) { Features["movbe"] = (ECX >> 22) & 1; Features["popcnt"] = (ECX >> 23) & 1; Features["aes"] = (ECX >> 25) & 1; + Features["xsave"] = (ECX >> 26) & 1; Features["rdrnd"] = (ECX >> 30) & 1; // If CPUID indicates support for XSAVE, XRESTORE and AVX, and XGETBV @@ -819,6 +820,14 @@ bool sys::getHostCPUFeatures(StringMap<bool> &Features) { Features["avx512bw"] = HasLeaf7 && ((EBX >> 30) & 1) && HasAVX512Save; Features["avx512vl"] = HasLeaf7 && ((EBX >> 31) & 1) && HasAVX512Save; + + bool HasLeafD = MaxLevel >= 0xd && + !GetX86CpuIDAndInfoEx(0xd, 0x1, &EAX, &EBX, &ECX, &EDX); + + Features["xsaveopt"] = Features["xsave"] && HasLeafD && ((EAX >> 0) & 1); + Features["xsavec"] = Features["xsave"] && HasLeafD && ((EAX >> 1) & 1); + Features["xsaves"] = Features["xsave"] && HasLeafD && ((EAX >> 3) & 1); + return true; } #elif defined(__linux__) && (defined(__arm__) || defined(__aarch64__)) |
