De-virtualize or remove some methods that have no overrides nor override anything. In some cases remove all together if there are no callers either.

llvm-svn: 207610

llvm/lib/Target/NVPTX/NVPTXRegisterInfo.cpp

@@ -84,13 +84,6 @@ NVPTXRegisterInfo::getCalleeSavedRegs(const MachineFunction *MF) const {
   return CalleeSavedRegs;
 }
 
-// NVPTX Callee Saved Reg Classes
-const TargetRegisterClass *const *
-NVPTXRegisterInfo::getCalleeSavedRegClasses(const MachineFunction *MF) const {
-  static const TargetRegisterClass *const CalleeSavedRegClasses[] = { nullptr };
-  return CalleeSavedRegClasses;
-}
-
 BitVector NVPTXRegisterInfo::getReservedRegs(const MachineFunction &MF) const {
   BitVector Reserved(getNumRegs());
   return Reserved;
@@ -113,12 +106,6 @@ void NVPTXRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II,
   MI.getOperand(FIOperandNum + 1).ChangeToImmediate(Offset);
 }
 
-int NVPTXRegisterInfo::getDwarfRegNum(unsigned RegNum, bool isEH) const {
-  return 0;
-}
-
 unsigned NVPTXRegisterInfo::getFrameRegister(const MachineFunction &MF) const {
   return NVPTX::VRFrame;
 }
-
-unsigned NVPTXRegisterInfo::getRARegister() const { return 0; }

llvm/lib/Target/NVPTX/NVPTXRegisterInfo.h

@@ -44,19 +44,13 @@ public:
   const MCPhysReg *
   getCalleeSavedRegs(const MachineFunction *MF = nullptr) const override;
 
-  // NVPTX callee saved register classes
-  virtual const TargetRegisterClass *const *
-  getCalleeSavedRegClasses(const MachineFunction *MF) const final;
-
   BitVector getReservedRegs(const MachineFunction &MF) const override;
 
   void eliminateFrameIndex(MachineBasicBlock::iterator MI, int SPAdj,
                            unsigned FIOperandNum,
                            RegScavenger *RS = nullptr) const override;
 
-  virtual int getDwarfRegNum(unsigned RegNum, bool isEH) const final;
   unsigned getFrameRegister(const MachineFunction &MF) const override;
-  virtual unsigned getRARegister() const final;
 
   ManagedStringPool *getStrPool() const {
     return const_cast<ManagedStringPool *>(&ManagedStrPool);

llvm/lib/Target/PowerPC/PPCInstrInfo.h

@@ -227,7 +227,7 @@ public:
   /// GetInstSize - Return the number of bytes of code the specified
   /// instruction may be.  This returns the maximum number of bytes.
   ///
-  virtual unsigned GetInstSizeInBytes(const MachineInstr *MI) const final;
+  unsigned GetInstSizeInBytes(const MachineInstr *MI) const;
 };
 
 }

llvm/lib/Target/R600/AMDGPUFrameLowering.h

@@ -33,7 +33,7 @@ public:
 
   /// \returns The number of 32-bit sub-registers that are used when storing
   /// values to the stack.
-  virtual unsigned getStackWidth(const MachineFunction &MF) const final;
+  unsigned getStackWidth(const MachineFunction &MF) const;
   int getFrameIndexOffset(const MachineFunction &MF, int FI) const override;
   const SpillSlot *
     getCalleeSavedSpillSlots(unsigned &NumEntries) const override;

llvm/lib/Target/R600/AMDGPUInstrInfo.h

@@ -103,11 +103,11 @@ protected:
                                       MachineInstr *LoadMI) const override;
   /// \returns the smallest register index that will be accessed by an indirect
   /// read or write or -1 if indirect addressing is not used by this program.
-  virtual int getIndirectIndexBegin(const MachineFunction &MF) const final;
+  int getIndirectIndexBegin(const MachineFunction &MF) const;
 
   /// \returns the largest register index that will be accessed by an indirect
   /// read or write or -1 if indirect addressing is not used by this program.
-  virtual int getIndirectIndexEnd(const MachineFunction &MF) const final;
+  int getIndirectIndexEnd(const MachineFunction &MF) const;
 
 public:
   bool canFoldMemoryOperand(const MachineInstr *MI,
@@ -188,8 +188,7 @@ public:
 
   /// \brief Convert the AMDIL MachineInstr to a supported ISA
   /// MachineInstr
-  virtual void convertToISA(MachineInstr & MI, MachineFunction &MF,
-    DebugLoc DL) const final;
+  void convertToISA(MachineInstr & MI, MachineFunction &MF, DebugLoc DL) const;
 
   /// \brief Build a MOV instruction.
   virtual MachineInstr *buildMovInstr(MachineBasicBlock *MBB,

llvm/lib/Target/R600/AMDGPUSubtarget.h

@@ -60,7 +60,7 @@ public:
   AMDGPUSubtarget(StringRef TT, StringRef CPU, StringRef FS);
 
   const InstrItineraryData &getInstrItineraryData() const { return InstrItins; }
-  virtual void ParseSubtargetFeatures(StringRef CPU, StringRef FS) final;
+  void ParseSubtargetFeatures(StringRef CPU, StringRef FS);
 
   bool is64bit() const;
   bool hasVertexCache() const;

llvm/lib/Target/R600/R600RegisterInfo.h

@@ -49,7 +49,7 @@ struct R600RegisterInfo : public AMDGPURegisterInfo {
     getRegClassWeight(const TargetRegisterClass *RC) const override;
 
   // \returns true if \p Reg can be defined in one ALU caluse and used in another.
-  virtual bool isPhysRegLiveAcrossClauses(unsigned Reg) const final;
+  bool isPhysRegLiveAcrossClauses(unsigned Reg) const;
 };
 
 } // End namespace llvm