[X86] Initialize HasPTWRITE member of X86Subtarget

This was missing from r331961.
Caught by sanitizer bots.

llvm-svn: 332024

diff --git a/llvm/lib/Target/X86/X86Subtarget.cpp b/llvm/lib/Target/X86/X86Subtarget.cpp
index 188c0a1..a137cb4 100644 (file)
--- a/llvm/lib/Target/X86/X86Subtarget.cpp
+++ b/llvm/lib/Target/X86/X86Subtarget.cpp
@@ -319,6 +319,7 @@ void X86Subtarget::initializeEnvironment() {
   HasCLDEMOTE = false;
   HasMOVDIRI = false;
   HasMOVDIR64B = false;
+  HasPTWRITE = false;
   HasMPX = false;
   HasSHSTK = false;
   HasIBT = false;