Provide a JIT selector on win64


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48704 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86TargetMachine.cpp b/lib/Target/X86/X86TargetMachine.cpp
index 98d1fb4..a30c950 100644
--- a/lib/Target/X86/X86TargetMachine.cpp
+++ b/lib/Target/X86/X86TargetMachine.cpp
@@ -50,7 +50,7 @@
 }
 
 unsigned X86_64TargetMachine::getJITMatchQuality() {
-#if defined(__x86_64__)
+#if defined(__x86_64__) || defined(_M_AMD64)
   return 10;
 #endif
   return 0;