- void eliminateCallFramePseudoInstr(MachineFunction &MF,
- MachineBasicBlock &MBB,
- MachineBasicBlock::iterator I) const;
+ void
+ eliminateCallFramePseudoInstr(MachineFunction &MF,
+ MachineBasicBlock &MBB,
+ MachineBasicBlock::iterator I) const override;
+
+ bool hasReservedCallFrame(const MachineFunction &MF) const override;
+ bool hasFP(const MachineFunction &MF) const override;
+ void processFunctionBeforeCalleeSavedScan(MachineFunction &MF,
+ RegScavenger *RS = nullptr) const override;
+
+private:
+ // Remap input registers to output registers for leaf procedure.
+ void remapRegsForLeafProc(MachineFunction &MF) const;
+
+ // Returns true if MF is a leaf procedure.
+ bool isLeafProc(MachineFunction &MF) const;
+
+
+ // Emits code for adjusting SP in function prologue/epilogue.
+ void emitSPAdjustment(MachineFunction &MF,
+ MachineBasicBlock &MBB,
+ MachineBasicBlock::iterator MBBI,
+ int NumBytes, unsigned ADDrr, unsigned ADDri) const;