Improve Mips back-end's handling of DBG_VALUE. 

llvm-svn: 134224
diff --git a/llvm/lib/Target/Mips/MipsInstrInfo.h b/llvm/lib/Target/Mips/MipsInstrInfo.h
index abf6773..b7f8bec 100644
--- a/llvm/lib/Target/Mips/MipsInstrInfo.h
+++ b/llvm/lib/Target/Mips/MipsInstrInfo.h
@@ -224,6 +224,11 @@
                                     const TargetRegisterClass *RC,
                                     const TargetRegisterInfo *TRI) const;
 
+  virtual MachineInstr* emitFrameIndexDebugValue(MachineFunction &MF,
+                                                 int FrameIx, uint64_t Offset,
+                                                 const MDNode *MDPtr,
+                                                 DebugLoc DL) const;
+
   virtual
   bool ReverseBranchCondition(SmallVectorImpl<MachineOperand> &Cond) const;