1 //===-- CSKYFrameLowering.h - Define frame lowering for CSKY -*- 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 // This class implements CSKY-specific bits of TargetFrameLowering class. 10 // 11 //===----------------------------------------------------------------------===// 12 13 #ifndef LLVM_LIB_TARGET_CSKY_CSKYFRAMELOWERING_H 14 #define LLVM_LIB_TARGET_CSKY_CSKYFRAMELOWERING_H 15 16 #include "llvm/CodeGen/TargetFrameLowering.h" 17 18 namespace llvm { 19 class CSKYSubtarget; 20 21 class CSKYFrameLowering : public TargetFrameLowering { 22 const CSKYSubtarget &STI; 23 24 public: 25 explicit CSKYFrameLowering(const CSKYSubtarget &STI) 26 : TargetFrameLowering(StackGrowsDown, 27 /*StackAlignment=*/Align(4), 28 /*LocalAreaOffset=*/0), 29 STI(STI) {} 30 31 void emitPrologue(MachineFunction &MF, MachineBasicBlock &MBB) const override; 32 void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override; 33 34 bool hasFP(const MachineFunction &MF) const override; 35 bool hasBP(const MachineFunction &MF) const; 36 }; 37 } // namespace llvm 38 #endif 39