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-rw-r--r--llvm/lib/Support/Host.cpp9
1 files changed, 9 insertions, 0 deletions
diff --git a/llvm/lib/Support/Host.cpp b/llvm/lib/Support/Host.cpp
index 3ad1495957b..836b363efd9 100644
--- a/llvm/lib/Support/Host.cpp
+++ b/llvm/lib/Support/Host.cpp
@@ -746,6 +746,13 @@ getIntelProcessorTypeAndSubtype(unsigned Family, unsigned Model,
break;
default: // Unknown family 6 CPU, try to guess.
+ // TODO detect tigerlake host
+ if (Features3 & (1 << (X86::FEATURE_AVX512VP2INTERSECT - 64))) {
+ *Type = X86::INTEL_COREI7;
+ *Subtype = X86::INTEL_COREI7_TIGERLAKE;
+ break;
+ }
+
if (Features & (1 << X86::FEATURE_AVX512VBMI2)) {
*Type = X86::INTEL_COREI7;
*Subtype = X86::INTEL_COREI7_ICELAKE_CLIENT;
@@ -1078,6 +1085,8 @@ static void getAvailableFeatures(unsigned ECX, unsigned EDX, unsigned MaxLeaf,
setFeature(X86::FEATURE_AVX5124VNNIW);
if (HasLeaf7 && ((EDX >> 3) & 1) && HasAVX512Save)
setFeature(X86::FEATURE_AVX5124FMAPS);
+ if (HasLeaf7 && ((EDX >> 8) & 1) && HasAVX512Save)
+ setFeature(X86::FEATURE_AVX512VP2INTERSECT);
unsigned MaxExtLevel;
getX86CpuIDAndInfo(0x80000000, &MaxExtLevel, &EBX, &ECX, &EDX);
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