Simplify and update functions storeRegToStackSlot and loadRegFromStackSlot.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141613 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Mips/MipsInstrInfo.h b/lib/Target/Mips/MipsInstrInfo.h
index 4405760..271d248 100644
--- a/lib/Target/Mips/MipsInstrInfo.h
+++ b/lib/Target/Mips/MipsInstrInfo.h
@@ -112,6 +112,7 @@
 
 class MipsInstrInfo : public MipsGenInstrInfo {
   MipsTargetMachine &TM;
+  bool IsN64;
   const MipsRegisterInfo RI;
 public:
   explicit MipsInstrInfo(MipsTargetMachine &TM);