10b57cec5SDimitry Andric //===-- LanaiFrameLowering.h - Define frame lowering for Lanai --*- C++-*--===// 20b57cec5SDimitry Andric // 30b57cec5SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 40b57cec5SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 50b57cec5SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 60b57cec5SDimitry Andric // 70b57cec5SDimitry Andric //===----------------------------------------------------------------------===// 80b57cec5SDimitry Andric // 90b57cec5SDimitry Andric // This class implements Lanai-specific bits of TargetFrameLowering class. 100b57cec5SDimitry Andric // 110b57cec5SDimitry Andric //===----------------------------------------------------------------------===// 120b57cec5SDimitry Andric 130b57cec5SDimitry Andric #ifndef LLVM_LIB_TARGET_LANAI_LANAIFRAMELOWERING_H 140b57cec5SDimitry Andric #define LLVM_LIB_TARGET_LANAI_LANAIFRAMELOWERING_H 150b57cec5SDimitry Andric 160b57cec5SDimitry Andric #include "llvm/CodeGen/TargetFrameLowering.h" 170b57cec5SDimitry Andric 180b57cec5SDimitry Andric namespace llvm { 190b57cec5SDimitry Andric 200b57cec5SDimitry Andric class BitVector; 210b57cec5SDimitry Andric class LanaiSubtarget; 220b57cec5SDimitry Andric 230b57cec5SDimitry Andric class LanaiFrameLowering : public TargetFrameLowering { 240b57cec5SDimitry Andric private: 250b57cec5SDimitry Andric void determineFrameLayout(MachineFunction &MF) const; 260b57cec5SDimitry Andric void replaceAdjDynAllocPseudo(MachineFunction &MF) const; 270b57cec5SDimitry Andric 280b57cec5SDimitry Andric protected: 290b57cec5SDimitry Andric const LanaiSubtarget &STI; 300b57cec5SDimitry Andric 310b57cec5SDimitry Andric public: LanaiFrameLowering(const LanaiSubtarget & Subtarget)320b57cec5SDimitry Andric explicit LanaiFrameLowering(const LanaiSubtarget &Subtarget) 330b57cec5SDimitry Andric : TargetFrameLowering(StackGrowsDown, 34*8bcb0991SDimitry Andric /*StackAlignment=*/Align(8), 350b57cec5SDimitry Andric /*LocalAreaOffset=*/0), 360b57cec5SDimitry Andric STI(Subtarget) {} 370b57cec5SDimitry Andric 380b57cec5SDimitry Andric // emitProlog/emitEpilog - These methods insert prolog and epilog code into 390b57cec5SDimitry Andric // the function. 400b57cec5SDimitry Andric void emitPrologue(MachineFunction &MF, MachineBasicBlock &MBB) const override; 410b57cec5SDimitry Andric void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override; 420b57cec5SDimitry Andric 430b57cec5SDimitry Andric MachineBasicBlock::iterator 440b57cec5SDimitry Andric eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB, 450b57cec5SDimitry Andric MachineBasicBlock::iterator I) const override; 460b57cec5SDimitry Andric hasFP(const MachineFunction &)470b57cec5SDimitry Andric bool hasFP(const MachineFunction & /*MF*/) const override { return true; } 480b57cec5SDimitry Andric 490b57cec5SDimitry Andric void determineCalleeSaves(MachineFunction &MF, BitVector &SavedRegs, 500b57cec5SDimitry Andric RegScavenger *RS = nullptr) const override; 510b57cec5SDimitry Andric }; 520b57cec5SDimitry Andric 530b57cec5SDimitry Andric } // namespace llvm 540b57cec5SDimitry Andric 550b57cec5SDimitry Andric #endif // LLVM_LIB_TARGET_LANAI_LANAIFRAMELOWERING_H 56