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 | |
21 | namespace llvm { |
22 | class DirectXSubtarget; |
23 | |
24 | class DirectXFrameLowering : public TargetFrameLowering { |
25 | public: |
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 | |
32 | bool hasFP(const MachineFunction &) const override { return false; } |
33 | }; |
34 | } // namespace llvm |
35 | #endif // LLVM_DIRECTX_DIRECTXFRAMELOWERING_H |
36 | |