| //===-- MipsFrameLowering.h - Define frame lowering for Mips ----*- 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 |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_LIB_TARGET_MIPS_MIPSFRAMELOWERING_H |
| #define LLVM_LIB_TARGET_MIPS_MIPSFRAMELOWERING_H |
| |
| #include "Mips.h" |
| #include "llvm/CodeGen/TargetFrameLowering.h" |
| |
| namespace llvm { |
| class MipsSubtarget; |
| |
| class MipsFrameLowering : public TargetFrameLowering { |
| protected: |
| const MipsSubtarget &STI; |
| |
| public: |
| explicit MipsFrameLowering(const MipsSubtarget &sti, Align Alignment) |
| : TargetFrameLowering(StackGrowsDown, Alignment, 0, Alignment), STI(sti) { |
| } |
| |
| static const MipsFrameLowering *create(const MipsSubtarget &ST); |
| |
| bool hasFP(const MachineFunction &MF) const override; |
| |
| bool hasBP(const MachineFunction &MF) const; |
| |
| bool allocateScavengingFrameIndexesNearIncomingSP( |
| const MachineFunction &MF) const override { |
| return false; |
| } |
| |
| bool enableShrinkWrapping(const MachineFunction &MF) const override { |
| return true; |
| } |
| |
| MachineBasicBlock::iterator |
| eliminateCallFramePseudoInstr(MachineFunction &MF, |
| MachineBasicBlock &MBB, |
| MachineBasicBlock::iterator I) const override; |
| |
| protected: |
| uint64_t estimateStackSize(const MachineFunction &MF) const; |
| }; |
| |
| /// Create MipsFrameLowering objects. |
| const MipsFrameLowering *createMips16FrameLowering(const MipsSubtarget &ST); |
| const MipsFrameLowering *createMipsSEFrameLowering(const MipsSubtarget &ST); |
| |
| } // End llvm namespace |
| |
| #endif |