//
//===----------------------------------------------------------------------===//
-#ifndef SYSTEMZFRAMELOWERING_H
-#define SYSTEMZFRAMELOWERING_H
+#ifndef LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZFRAMELOWERING_H
+#define LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZFRAMELOWERING_H
-#include "SystemZSubtarget.h"
#include "llvm/ADT/IndexedMap.h"
#include "llvm/Target/TargetFrameLowering.h"
class SystemZFrameLowering : public TargetFrameLowering {
IndexedMap<unsigned> RegSpillOffsets;
-protected:
- const SystemZTargetMachine &TM;
- const SystemZSubtarget &STI;
-
public:
- SystemZFrameLowering(const SystemZTargetMachine &tm,
- const SystemZSubtarget &sti);
+ SystemZFrameLowering();
// Override TargetFrameLowering.
- virtual bool isFPCloseToIncomingSP() const override { return false; }
- virtual const SpillSlot *
- getCalleeSavedSpillSlots(unsigned &NumEntries) const override;
- virtual void
- processFunctionBeforeCalleeSavedScan(MachineFunction &MF,
- RegScavenger *RS) const override;
- virtual bool
- spillCalleeSavedRegisters(MachineBasicBlock &MBB,
- MachineBasicBlock::iterator MBBI,
- const std::vector<CalleeSavedInfo> &CSI,
- const TargetRegisterInfo *TRI) const
+ bool isFPCloseToIncomingSP() const override { return false; }
+ const SpillSlot *getCalleeSavedSpillSlots(unsigned &NumEntries) const
+ override;
+ void determineCalleeSaves(MachineFunction &MF, BitVector &SavedRegs,
+ RegScavenger *RS) const override;
+ bool spillCalleeSavedRegisters(MachineBasicBlock &MBB,
+ MachineBasicBlock::iterator MBBI,
+ const std::vector<CalleeSavedInfo> &CSI,
+ const TargetRegisterInfo *TRI) const override;
+ bool restoreCalleeSavedRegisters(MachineBasicBlock &MBB,
+ MachineBasicBlock::iterator MBBII,
+ const std::vector<CalleeSavedInfo> &CSI,
+ const TargetRegisterInfo *TRI) const
+ override;
+ void processFunctionBeforeFrameFinalized(MachineFunction &MF,
+ RegScavenger *RS) const override;
+ void emitPrologue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
+ void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
+ bool hasFP(const MachineFunction &MF) const override;
+ int getFrameIndexReference(const MachineFunction &MF, int FI,
+ unsigned &FrameReg) const override;
+ bool hasReservedCallFrame(const MachineFunction &MF) const override;
+ void eliminateCallFramePseudoInstr(MachineFunction &MF,
+ MachineBasicBlock &MBB,
+ MachineBasicBlock::iterator MI) const
override;
- virtual bool
- restoreCalleeSavedRegisters(MachineBasicBlock &MBB,
- MachineBasicBlock::iterator MBBII,
- const std::vector<CalleeSavedInfo> &CSI,
- const TargetRegisterInfo *TRI) const override;
- virtual void processFunctionBeforeFrameFinalized(MachineFunction &MF,
- RegScavenger *RS) const;
- virtual void emitPrologue(MachineFunction &MF) const override;
- virtual void emitEpilogue(MachineFunction &MF,
- MachineBasicBlock &MBB) const override;
- virtual bool hasFP(const MachineFunction &MF) const override;
- virtual int getFrameIndexOffset(const MachineFunction &MF,
- int FI) const override;
- virtual bool hasReservedCallFrame(const MachineFunction &MF) const override;
- virtual void
- eliminateCallFramePseudoInstr(MachineFunction &MF,
- MachineBasicBlock &MBB,
- MachineBasicBlock::iterator MI) const override;
// Return the number of bytes in the callee-allocated part of the frame.
uint64_t getAllocatedStackSize(const MachineFunction &MF) const;