1*81ad6265SDimitry Andric //===-- DirectXFrameLowering.h - Frame lowering for DirectX --*- C++ ---*--===// 2*81ad6265SDimitry Andric // 3*81ad6265SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4*81ad6265SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 5*81ad6265SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6*81ad6265SDimitry Andric // 7*81ad6265SDimitry Andric //===----------------------------------------------------------------------===// 8*81ad6265SDimitry Andric // 9*81ad6265SDimitry Andric // This class implements DirectX-specific bits of TargetFrameLowering class. 10*81ad6265SDimitry Andric // This is just a stub because the current DXIL backend does not actually lower 11*81ad6265SDimitry Andric // through the MC layer. 12*81ad6265SDimitry Andric // 13*81ad6265SDimitry Andric //===----------------------------------------------------------------------===// 14*81ad6265SDimitry Andric 15*81ad6265SDimitry Andric #ifndef LLVM_DIRECTX_DIRECTXFRAMELOWERING_H 16*81ad6265SDimitry Andric #define LLVM_DIRECTX_DIRECTXFRAMELOWERING_H 17*81ad6265SDimitry Andric 18*81ad6265SDimitry Andric #include "llvm/CodeGen/TargetFrameLowering.h" 19*81ad6265SDimitry Andric #include "llvm/Support/Alignment.h" 20*81ad6265SDimitry Andric 21*81ad6265SDimitry Andric namespace llvm { 22*81ad6265SDimitry Andric class DirectXSubtarget; 23*81ad6265SDimitry Andric 24*81ad6265SDimitry Andric class DirectXFrameLowering : public TargetFrameLowering { 25*81ad6265SDimitry Andric public: DirectXFrameLowering(const DirectXSubtarget & STI)26*81ad6265SDimitry Andric explicit DirectXFrameLowering(const DirectXSubtarget &STI) 27*81ad6265SDimitry Andric : TargetFrameLowering(TargetFrameLowering::StackGrowsDown, Align(8), 0) {} 28*81ad6265SDimitry Andric emitPrologue(MachineFunction &,MachineBasicBlock &)29*81ad6265SDimitry Andric void emitPrologue(MachineFunction &, MachineBasicBlock &) const override {} emitEpilogue(MachineFunction &,MachineBasicBlock &)30*81ad6265SDimitry Andric void emitEpilogue(MachineFunction &, MachineBasicBlock &) const override {} 31*81ad6265SDimitry Andric hasFP(const MachineFunction &)32*81ad6265SDimitry Andric bool hasFP(const MachineFunction &) const override { return false; } 33*81ad6265SDimitry Andric }; 34*81ad6265SDimitry Andric } // namespace llvm 35*81ad6265SDimitry Andric #endif // LLVM_DIRECTX_DIRECTXFRAMELOWERING_H 36