[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

1 files changed, 10 insertions, 0 deletions

diff --git a/clang/lib/Basic/Targets/X86.cpp b/clang/lib/Basic/Targets/X86.cpp
index 786cd8e5a72..a010b5a36fa 100644
--- a/clang/lib/Basic/Targets/X86.cpp
+++ b/clang/lib/Basic/Targets/X86.cpp
@@ -157,11 +157,20 @@ bool X86TargetInfo::initFeatureMap(
     // SkylakeServer cores inherits all SKL features, except SGX
     goto SkylakeCommon;
 
+  case CK_Tigerlake:
+    setFeatureEnabledImpl(Features, "avx512vp2intersect", true);
+    setFeatureEnabledImpl(Features, "movdiri", true);
+    setFeatureEnabledImpl(Features, "movdir64b", true);
+    setFeatureEnabledImpl(Features, "shstk", true);
+    // Tigerlake cores inherits IcelakeClient, except pconfig and wbnoinvd
+    goto IcelakeCommon;
+
   case CK_IcelakeServer:
     setFeatureEnabledImpl(Features, "pconfig", true);
     setFeatureEnabledImpl(Features, "wbnoinvd", true);
     LLVM_FALLTHROUGH;
   case CK_IcelakeClient:
+IcelakeCommon:
     setFeatureEnabledImpl(Features, "vaes", true);
     setFeatureEnabledImpl(Features, "gfni", true);
     setFeatureEnabledImpl(Features, "vpclmulqdq", true);
@@ -1000,6 +1009,7 @@ void X86TargetInfo::getTargetDefines(const LangOptions &Opts,
   case CK_Cannonlake:
   case CK_IcelakeClient:
   case CK_IcelakeServer:
+  case CK_Tigerlake:
     // FIXME: Historically, we defined this legacy name, it would be nice to
     // remove it at some point. We've never exposed fine-grained names for
     // recent primary x86 CPUs, and we should keep it that way.