mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-11-02 07:11:49 +00:00
abe768029b
Also fix a couple of cases where "override" was missing. No behavioural change intended. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203110 91177308-0d34-0410-b5e6-96231b3b80d8
71 lines
2.8 KiB
C++
71 lines
2.8 KiB
C++
//===-- SystemZFrameLowering.h - Frame lowering for SystemZ -----*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef SYSTEMZFRAMELOWERING_H
|
|
#define SYSTEMZFRAMELOWERING_H
|
|
|
|
#include "SystemZSubtarget.h"
|
|
#include "llvm/ADT/IndexedMap.h"
|
|
#include "llvm/Target/TargetFrameLowering.h"
|
|
|
|
namespace llvm {
|
|
class SystemZTargetMachine;
|
|
class SystemZSubtarget;
|
|
|
|
class SystemZFrameLowering : public TargetFrameLowering {
|
|
IndexedMap<unsigned> RegSpillOffsets;
|
|
|
|
protected:
|
|
const SystemZTargetMachine &TM;
|
|
const SystemZSubtarget &STI;
|
|
|
|
public:
|
|
SystemZFrameLowering(const SystemZTargetMachine &tm,
|
|
const SystemZSubtarget &sti);
|
|
|
|
// Override TargetFrameLowering.
|
|
bool isFPCloseToIncomingSP() const override { return false; }
|
|
const SpillSlot *getCalleeSavedSpillSlots(unsigned &NumEntries) const
|
|
override;
|
|
void processFunctionBeforeCalleeSavedScan(MachineFunction &MF,
|
|
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) const override;
|
|
void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
|
|
bool hasFP(const MachineFunction &MF) const override;
|
|
int getFrameIndexOffset(const MachineFunction &MF, int FI) const override;
|
|
bool hasReservedCallFrame(const MachineFunction &MF) const override;
|
|
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;
|
|
|
|
// Return the byte offset from the incoming stack pointer of Reg's
|
|
// ABI-defined save slot. Return 0 if no slot is defined for Reg.
|
|
unsigned getRegSpillOffset(unsigned Reg) const {
|
|
return RegSpillOffsets[Reg];
|
|
}
|
|
};
|
|
} // end namespace llvm
|
|
|
|
#endif
|