LLVM 20.0.0git
XtensaFrameLowering.h
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1//===- XtensaFrameLowering.h - Define frame lowering for Xtensa --*- C++ -*-==//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===-----------------------------------------------------------------------==//
8
9#ifndef LLVM_LIB_TARGET_XTENSA_XTENSAFRAMELOWERING_H
10#define LLVM_LIB_TARGET_XTENSA_XTENSAFRAMELOWERING_H
11
13
14namespace llvm {
15class XtensaTargetMachine;
16class XtensaSubtarget;
17class XtensaInstrInfo;
18class XtensaRegisterInfo;
19
21 const XtensaInstrInfo &TII;
22 const XtensaRegisterInfo *TRI;
23
24public:
26
27 bool hasFP(const MachineFunction &MF) const override;
28
29 /// emitProlog/emitEpilog - These methods insert prolog and epilog code into
30 /// the function.
31 void emitPrologue(MachineFunction &, MachineBasicBlock &) const override;
32 void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
33
36 MachineBasicBlock::iterator I) const override;
37
41 const TargetRegisterInfo *TRI) const override;
42 bool
46 const TargetRegisterInfo *TRI) const override;
47
49 RegScavenger *RS) const override;
50
52 RegScavenger *RS) const override;
53};
54
55} // namespace llvm
56
57#endif /* LLVM_LIB_TARGET_XTENSA_XTENSAFRAMELOWERING_H */
MachineBasicBlock & MBB
IRTranslator LLVM IR MI
#define I(x, y, z)
Definition: MD5.cpp:58
unsigned const TargetRegisterInfo * TRI
ArrayRef - Represent a constant reference to an array (0 or more elements consecutively in memory),...
Definition: ArrayRef.h:41
MutableArrayRef - Represent a mutable reference to an array (0 or more elements consecutively in memo...
Definition: ArrayRef.h:307
Information about stack frame layout on the target.
TargetRegisterInfo base class - We assume that the target defines a static array of TargetRegisterDes...
void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override
void processFunctionBeforeFrameFinalized(MachineFunction &MF, RegScavenger *RS) const override
processFunctionBeforeFrameFinalized - This method is called immediately before the specified function...
bool restoreCalleeSavedRegisters(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI, MutableArrayRef< CalleeSavedInfo > CSI, const TargetRegisterInfo *TRI) const override
restoreCalleeSavedRegisters - Issues instruction(s) to restore all callee saved registers and returns...
bool hasFP(const MachineFunction &MF) const override
hasFP - Return true if the specified function should have a dedicated frame pointer register.
void emitPrologue(MachineFunction &, MachineBasicBlock &) const override
emitProlog/emitEpilog - These methods insert prolog and epilog code into the function.
bool spillCalleeSavedRegisters(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI, ArrayRef< CalleeSavedInfo > CSI, const TargetRegisterInfo *TRI) const override
spillCalleeSavedRegisters - Issues instruction(s) to spill all callee saved registers and returns tru...
MachineBasicBlock::iterator eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB, MachineBasicBlock::iterator I) const override
This method is called during prolog/epilog code insertion to eliminate call frame setup and destroy p...
void determineCalleeSaves(MachineFunction &MF, BitVector &SavedRegs, RegScavenger *RS) const override
This method determines which of the registers reported by TargetRegisterInfo::getCalleeSavedRegs() sh...
This is an optimization pass for GlobalISel generic memory operations.
Definition: AddressRanges.h:18