LLVM  10.0.0svn
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1 //==- MSP430FrameLowering.h - Define frame lowering for MSP430 --*- 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 //
10 //
11 //===----------------------------------------------------------------------===//
16 #include "MSP430.h"
19 namespace llvm {
21 protected:
23 public:
26  Align(2)) {}
28  /// emitProlog/emitEpilog - These methods insert prolog and epilog code into
29  /// the function.
30  void emitPrologue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
31  void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
35  MachineBasicBlock::iterator I) const override;
39  const std::vector<CalleeSavedInfo> &CSI,
40  const TargetRegisterInfo *TRI) const override;
43  std::vector<CalleeSavedInfo> &CSI,
44  const TargetRegisterInfo *TRI) const override;
46  bool hasFP(const MachineFunction &MF) const override;
47  bool hasReservedCallFrame(const MachineFunction &MF) const override;
49  RegScavenger *RS = nullptr) const override;
50 };
52 } // End llvm namespace
54 #endif
void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override
This class represents lattice values for constants.
Definition: AllocatorList.h:23
unsigned const TargetRegisterInfo * TRI
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...
bool restoreCalleeSavedRegisters(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI, std::vector< 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...
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...
void processFunctionBeforeFrameFinalized(MachineFunction &MF, RegScavenger *RS=nullptr) const override
processFunctionBeforeFrameFinalized - This method is called immediately before the specified function...
TargetRegisterInfo base class - We assume that the target defines a static array of TargetRegisterDes...
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.
This struct is a compact representation of a valid (non-zero power of two) alignment.
Definition: Alignment.h:40
void emitPrologue(MachineFunction &MF, MachineBasicBlock &MBB) const override
emitProlog/emitEpilog - These methods insert prolog and epilog code into the function.
Information about stack frame layout on the target.
#define I(x, y, z)
Definition: MD5.cpp:58
IRTranslator LLVM IR MI