[x86][icelake]VAES introduction
an icelake promotion of AES
Differential Revision: https://reviews.llvm.org/D40078

llvm-svn: 318740
diff --git a/llvm/lib/Target/X86/X86Subtarget.cpp b/llvm/lib/Target/X86/X86Subtarget.cpp
index 1d1a78f..a4581e1 100644
--- a/llvm/lib/Target/X86/X86Subtarget.cpp
+++ b/llvm/lib/Target/X86/X86Subtarget.cpp
@@ -292,6 +292,7 @@
   HasPOPCNT = false;
   HasSSE4A = false;
   HasAES = false;
+  HasVAES = false;
   HasFXSR = false;
   HasXSAVE = false;
   HasXSAVEOPT = false;