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| Rev | Author | Line No. | Line |
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| 14 | pmbaty | 1 | //===- MCWin64EH.h - Machine Code Win64 EH support --------------*- C++ -*-===// |
| 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 file contains declarations to support the Win64 Exception Handling |
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| 10 | // scheme in MC. |
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| 11 | // |
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| 12 | //===----------------------------------------------------------------------===// |
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| 13 | |||
| 14 | #ifndef LLVM_MC_MCWIN64EH_H |
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| 15 | #define LLVM_MC_MCWIN64EH_H |
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| 16 | |||
| 17 | #include "llvm/MC/MCWinEH.h" |
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| 18 | #include "llvm/Support/Win64EH.h" |
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| 19 | |||
| 20 | namespace llvm { |
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| 21 | class MCStreamer; |
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| 22 | class MCSymbol; |
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| 23 | |||
| 24 | namespace Win64EH { |
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| 25 | struct Instruction { |
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| 26 | static WinEH::Instruction PushNonVol(MCSymbol *L, unsigned Reg) { |
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| 27 | return WinEH::Instruction(Win64EH::UOP_PushNonVol, L, Reg, -1); |
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| 28 | } |
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| 29 | static WinEH::Instruction Alloc(MCSymbol *L, unsigned Size) { |
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| 30 | return WinEH::Instruction(Size > 128 ? UOP_AllocLarge : UOP_AllocSmall, L, |
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| 31 | -1, Size); |
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| 32 | } |
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| 33 | static WinEH::Instruction PushMachFrame(MCSymbol *L, bool Code) { |
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| 34 | return WinEH::Instruction(UOP_PushMachFrame, L, -1, Code ? 1 : 0); |
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| 35 | } |
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| 36 | static WinEH::Instruction SaveNonVol(MCSymbol *L, unsigned Reg, |
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| 37 | unsigned Offset) { |
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| 38 | return WinEH::Instruction(Offset > 512 * 1024 - 8 ? UOP_SaveNonVolBig |
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| 39 | : UOP_SaveNonVol, |
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| 40 | L, Reg, Offset); |
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| 41 | } |
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| 42 | static WinEH::Instruction SaveXMM(MCSymbol *L, unsigned Reg, |
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| 43 | unsigned Offset) { |
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| 44 | return WinEH::Instruction(Offset > 512 * 1024 - 8 ? UOP_SaveXMM128Big |
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| 45 | : UOP_SaveXMM128, |
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| 46 | L, Reg, Offset); |
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| 47 | } |
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| 48 | static WinEH::Instruction SetFPReg(MCSymbol *L, unsigned Reg, unsigned Off) { |
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| 49 | return WinEH::Instruction(UOP_SetFPReg, L, Reg, Off); |
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| 50 | } |
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| 51 | }; |
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| 52 | |||
| 53 | class UnwindEmitter : public WinEH::UnwindEmitter { |
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| 54 | public: |
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| 55 | void Emit(MCStreamer &Streamer) const override; |
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| 56 | void EmitUnwindInfo(MCStreamer &Streamer, WinEH::FrameInfo *FI, |
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| 57 | bool HandlerData) const override; |
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| 58 | }; |
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| 59 | |||
| 60 | class ARMUnwindEmitter : public WinEH::UnwindEmitter { |
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| 61 | public: |
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| 62 | void Emit(MCStreamer &Streamer) const override; |
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| 63 | void EmitUnwindInfo(MCStreamer &Streamer, WinEH::FrameInfo *FI, |
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| 64 | bool HandlerData) const override; |
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| 65 | }; |
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| 66 | |||
| 67 | class ARM64UnwindEmitter : public WinEH::UnwindEmitter { |
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| 68 | public: |
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| 69 | void Emit(MCStreamer &Streamer) const override; |
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| 70 | void EmitUnwindInfo(MCStreamer &Streamer, WinEH::FrameInfo *FI, |
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| 71 | bool HandlerData) const override; |
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| 72 | }; |
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| 73 | } |
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| 74 | } // end namespace llvm |
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| 75 | |||
| 76 | #endif |