[X86] Support -march=tigerlake
Support -march=tigerlake for x86.
Compare with Icelake Client, It include 4 more new features ,they are
avx512vp2intersect, movdiri, movdir64b, shstk.
Patch by Xiang Zhang (xiangzhangllvm)
Differential Revision: https://reviews.llvm.org/D65840
llvm-svn: 368543
diff --git a/llvm/lib/Support/Host.cpp b/llvm/lib/Support/Host.cpp
index 3ad1495..836b363 100644
--- a/llvm/lib/Support/Host.cpp
+++ b/llvm/lib/Support/Host.cpp
@@ -746,6 +746,13 @@
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 @@
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);