LLVM  4.0.0
MipsSEFrameLowering.h
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1 //===-- MipsSEFrameLowering.h - Mips32/64 frame lowering --------*- C++ -*-===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 //
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #ifndef LLVM_LIB_TARGET_MIPS_MIPSSEFRAMELOWERING_H
15 #define LLVM_LIB_TARGET_MIPS_MIPSSEFRAMELOWERING_H
16 
17 #include "MipsFrameLowering.h"
18 
19 namespace llvm {
20 
22 public:
23  explicit MipsSEFrameLowering(const MipsSubtarget &STI);
24 
25  /// emitProlog/emitEpilog - These methods insert prolog and epilog code into
26  /// the function.
27  void emitPrologue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
28  void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
29 
30  int getFrameIndexReference(const MachineFunction &MF, int FI,
31  unsigned &FrameReg) const override;
32 
35  const std::vector<CalleeSavedInfo> &CSI,
36  const TargetRegisterInfo *TRI) const override;
37 
38  bool hasReservedCallFrame(const MachineFunction &MF) const override;
39 
40  void determineCalleeSaves(MachineFunction &MF, BitVector &SavedRegs,
41  RegScavenger *RS) const override;
42  unsigned ehDataReg(unsigned I) const;
43 
44 private:
45  void emitInterruptEpilogueStub(MachineFunction &MF,
46  MachineBasicBlock &MBB) const;
47  void emitInterruptPrologueStub(MachineFunction &MF,
48  MachineBasicBlock &MBB) const;
49 };
50 } // End llvm namespace
51 
52 #endif
const MipsSubtarget & STI
bool spillCalleeSavedRegisters(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI, const std::vector< CalleeSavedInfo > &CSI, const TargetRegisterInfo *TRI) const override
spillCalleeSavedRegisters - Issues instruction(s) to spill all callee saved registers and returns tru...
bool hasReservedCallFrame(const MachineFunction &MF) const override
hasReservedCallFrame - Under normal circumstances, when a frame pointer is not required, we reserve argument space for call sites in the function immediately on entry to the current function.
MachineBasicBlock * MBB
void emitPrologue(MachineFunction &MF, MachineBasicBlock &MBB) const override
emitProlog/emitEpilog - These methods insert prolog and epilog code into the function.
TargetRegisterInfo base class - We assume that the target defines a static array of TargetRegisterDes...
void determineCalleeSaves(MachineFunction &MF, BitVector &SavedRegs, RegScavenger *RS) const override
This method determines which of the registers reported by TargetRegisterInfo::getCalleeSavedRegs() sh...
MipsSEFrameLowering(const MipsSubtarget &STI)
#define I(x, y, z)
Definition: MD5.cpp:54
unsigned ehDataReg(unsigned I) const
void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override
IRTranslator LLVM IR MI
int getFrameIndexReference(const MachineFunction &MF, int FI, unsigned &FrameReg) const override
getFrameIndexReference - This method should return the base register and offset used to reference a f...