56 lines
1.9 KiB
C
56 lines
1.9 KiB
C
|
//===-- LanaiFrameLowering.h - Define frame lowering for Lanai --*- C++-*--===//
|
||
|
|
//
|
||
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
||
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
||
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
||
|
|
//
|
||
|
|
//===----------------------------------------------------------------------===//
|
||
|
|
//
|
||
|
|
// This class implements Lanai-specific bits of TargetFrameLowering class.
|
||
|
|
//
|
||
|
|
//===----------------------------------------------------------------------===//
|
||
|
|
|
||
|
|
#ifndef LLVM_LIB_TARGET_LANAI_LANAIFRAMELOWERING_H
|
||
|
|
#define LLVM_LIB_TARGET_LANAI_LANAIFRAMELOWERING_H
|
||
|
|
|
||
|
|
#include "llvm/CodeGen/TargetFrameLowering.h"
|
||
|
|
|
||
|
|
namespace llvm {
|
||
|
|
|
||
|
|
class BitVector;
|
||
|
|
class LanaiSubtarget;
|
||
|
|
|
||
|
|
class LanaiFrameLowering : public TargetFrameLowering {
|
||
|
|
private:
|
||
|
|
void determineFrameLayout(MachineFunction &MF) const;
|
||
|
|
void replaceAdjDynAllocPseudo(MachineFunction &MF) const;
|
||
|
|
|
||
|
|
protected:
|
||
|
|
const LanaiSubtarget &STI;
|
||
|
|
|
||
|
|
public:
|
||
|
|
explicit LanaiFrameLowering(const LanaiSubtarget &Subtarget)
|
||
|
|
: TargetFrameLowering(StackGrowsDown,
|
||
|
|
/*StackAlignment=*/Align(8),
|
||
|
|
/*LocalAreaOffset=*/0),
|
||
|
|
STI(Subtarget) {}
|
||
|
|
|
||
|
|
// emitProlog/emitEpilog - These methods insert prolog and epilog code into
|
||
|
|
// the function.
|
||
|
|
void emitPrologue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
|
||
|
|
void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
|
||
|
|
|
||
|
|
MachineBasicBlock::iterator
|
||
|
|
eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB,
|
||
|
|
MachineBasicBlock::iterator I) const override;
|
||
|
|
|
||
|
|
bool hasFP(const MachineFunction & /*MF*/) const override { return true; }
|
||
|
|
|
||
|
|
void determineCalleeSaves(MachineFunction &MF, BitVector &SavedRegs,
|
||
|
|
RegScavenger *RS = nullptr) const override;
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace llvm
|
||
|
|
|
||
|
|
#endif // LLVM_LIB_TARGET_LANAI_LANAIFRAMELOWERING_H
|