remove MachineOpCode typedef.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45679 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86InstrInfo.cpp b/lib/Target/X86/X86InstrInfo.cpp
index d79c1ed..eb455ca 100644
--- a/lib/Target/X86/X86InstrInfo.cpp
+++ b/lib/Target/X86/X86InstrInfo.cpp
@@ -636,7 +636,7 @@
 bool X86InstrInfo::isMoveInstr(const MachineInstr& MI,
                                unsigned& sourceReg,
                                unsigned& destReg) const {
-  MachineOpCode oc = MI.getOpcode();
+  unsigned oc = MI.getOpcode();
   if (oc == X86::MOV8rr || oc == X86::MOV16rr ||
       oc == X86::MOV32rr || oc == X86::MOV64rr ||
       oc == X86::MOV16to16_ || oc == X86::MOV32to32_ ||