Index: lib/Target/Mips/MipsISelLowering.h
===================================================================
--- lib/Target/Mips/MipsISelLowering.h
+++ lib/Target/Mips/MipsISelLowering.h
@@ -356,13 +356,6 @@
       const ArrayRef<MCPhysReg> intArgRegs() const;
 
     private:
-      /// Return the type of the register which is used to pass an argument or
-      /// return a value. This function returns f64 if the argument is an i64
-      /// value which has been generated as a result of softening an f128 value.
-      /// Otherwise, it just returns VT.
-      MVT getRegVT(MVT VT, const Type *OrigTy, const SDNode *CallNode,
-                   bool IsSoftFloat) const;
-
       CallingConv::ID CallConv;
       const MipsSubtarget &Subtarget;
     };
Index: lib/Target/Mips/MipsISelLowering.cpp
===================================================================
--- lib/Target/Mips/MipsISelLowering.cpp
+++ lib/Target/Mips/MipsISelLowering.cpp
@@ -3643,21 +3643,6 @@
   return makeArrayRef(Mips64IntRegs);
 }
 
-MVT MipsTargetLowering::MipsCC::getRegVT(MVT VT, const Type *OrigTy,
-                                         const SDNode *CallNode,
-                                         bool IsSoftFloat) const {
-  if (IsSoftFloat || Subtarget.isABI_O32())
-    return VT;
-
-  // Check if the original type was fp128.
-  if (originalTypeIsF128(OrigTy, CallNode)) {
-    assert(VT == MVT::i64);
-    return MVT::f64;
-  }
-
-  return VT;
-}
-
 void MipsTargetLowering::copyByValRegs(
     SDValue Chain, SDLoc DL, std::vector<SDValue> &OutChains, SelectionDAG &DAG,
     const ISD::ArgFlagsTy &Flags, SmallVectorImpl<SDValue> &InVals,