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