1 //===-- LanaiFrameLowering.h - Define frame lowering for Lanai --*- 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 //===----------------------------------------------------------------------===//
10 // This class implements Lanai-specific bits of TargetFrameLowering class.
12 //===----------------------------------------------------------------------===//
14 #ifndef LLVM_LIB_TARGET_LANAI_LANAIFRAMELOWERING_H
15 #define LLVM_LIB_TARGET_LANAI_LANAIFRAMELOWERING_H
18 #include "llvm/Target/TargetFrameLowering.h"
25 class LanaiFrameLowering : public TargetFrameLowering {
27 void determineFrameLayout(MachineFunction &MF) const;
28 void replaceAdjDynAllocPseudo(MachineFunction &MF) const;
31 const LanaiSubtarget &STI;
34 explicit LanaiFrameLowering(const LanaiSubtarget &Subtarget)
35 : TargetFrameLowering(StackGrowsDown,
37 /*LocalAreaOffset=*/0),
40 // emitProlog/emitEpilog - These methods insert prolog and epilog code into
42 void emitPrologue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
43 void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
45 MachineBasicBlock::iterator
46 eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB,
47 MachineBasicBlock::iterator I) const override;
49 bool hasFP(const MachineFunction & /*MF*/) const override { return true; }
51 void determineCalleeSaves(MachineFunction &MF, BitVector &SavedRegs,
52 RegScavenger *RS = nullptr) const override;
57 #endif // LLVM_LIB_TARGET_LANAI_LANAIFRAMELOWERING_H