1 //===-- SparcFrameLowering.h - Define frame lowering for Sparc --*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
12 //===----------------------------------------------------------------------===//
14 #ifndef LLVM_LIB_TARGET_SPARC_SPARCFRAMELOWERING_H
15 #define LLVM_LIB_TARGET_SPARC_SPARCFRAMELOWERING_H
18 #include "llvm/Target/TargetFrameLowering.h"
23 class SparcFrameLowering : public TargetFrameLowering {
25 explicit SparcFrameLowering(const SparcSubtarget &ST);
27 /// emitProlog/emitEpilog - These methods insert prolog and epilog code into
29 void emitPrologue(MachineFunction &MF) const override;
30 void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
33 eliminateCallFramePseudoInstr(MachineFunction &MF,
34 MachineBasicBlock &MBB,
35 MachineBasicBlock::iterator I) const override;
37 bool hasReservedCallFrame(const MachineFunction &MF) const override;
38 bool hasFP(const MachineFunction &MF) const override;
39 void processFunctionBeforeCalleeSavedScan(MachineFunction &MF,
40 RegScavenger *RS = nullptr) const override;
43 // Remap input registers to output registers for leaf procedure.
44 void remapRegsForLeafProc(MachineFunction &MF) const;
46 // Returns true if MF is a leaf procedure.
47 bool isLeafProc(MachineFunction &MF) const;
50 // Emits code for adjusting SP in function prologue/epilogue.
51 void emitSPAdjustment(MachineFunction &MF,
52 MachineBasicBlock &MBB,
53 MachineBasicBlock::iterator MBBI,
54 int NumBytes, unsigned ADDrr, unsigned ADDri) const;
58 } // End llvm namespace