1//===-- DirectXFrameLowering.h - Frame lowering for DirectX --*- 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 DirectX-specific bits of TargetFrameLowering class.
10// This is just a stub because the current DXIL backend does not actually lower
11// through the MC layer.
12//
13//===----------------------------------------------------------------------===//
14
15#ifndef LLVM_DIRECTX_DIRECTXFRAMELOWERING_H
16#define LLVM_DIRECTX_DIRECTXFRAMELOWERING_H
17
18#include "llvm/CodeGen/TargetFrameLowering.h"
19#include "llvm/Support/Alignment.h"
20
21namespace llvm {
22class DirectXSubtarget;
23
24class DirectXFrameLowering : public TargetFrameLowering {
25public:
26 explicit DirectXFrameLowering(const DirectXSubtarget &STI)
27 : TargetFrameLowering(TargetFrameLowering::StackGrowsDown, Align(8), 0) {}
28
29 void emitPrologue(MachineFunction &, MachineBasicBlock &) const override {}
30 void emitEpilogue(MachineFunction &, MachineBasicBlock &) const override {}
31
32protected:
33 bool hasFPImpl(const MachineFunction &) const override { return false; }
34};
35} // namespace llvm
36#endif // LLVM_DIRECTX_DIRECTXFRAMELOWERING_H
37