[X86] Fix uninitialized variable sanitizer warning from rL321074

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321076 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/X86/X86Subtarget.cpp b/lib/Target/X86/X86Subtarget.cpp
index 622abbd..20871a7 100644 (file)
--- a/lib/Target/X86/X86Subtarget.cpp
+++ b/lib/Target/X86/X86Subtarget.cpp
@@ -320,6 +320,7 @@ void X86Subtarget::initializeEnvironment() {
   HasSSEUnalignedMem = false;
   HasCmpxchg16b = false;
   UseLeaForSP = false;
+  HasFastVariableShuffle = false;
   HasFastPartialYMMorZMMWrite = false;
   HasFastGather = false;
   HasFastScalarFSQRT = false;