Make OpcodeMask an unsigned long long literal to deal with overflow.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128847 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86InstrInfo.h b/lib/Target/X86/X86InstrInfo.h
index 39448ca..4625b4c 100644
--- a/lib/Target/X86/X86InstrInfo.h
+++ b/lib/Target/X86/X86InstrInfo.h
@@ -449,7 +449,7 @@
     SSEDomainShift = SegOvrShift + 2,
 
     OpcodeShift   = SSEDomainShift + 2,
-    OpcodeMask    = 0xFF << OpcodeShift,
+    OpcodeMask    = 0xFFULL << OpcodeShift,
 
     //===------------------------------------------------------------------===//
     /// VEX - The opcode prefix used by AVX instructions