1 //===- MCWin64EH.h - Machine Code Win64 EH support --------------*- C++ -*-===//
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
7 //===----------------------------------------------------------------------===//
9 // This file contains declarations to support the Win64 Exception Handling
12 //===----------------------------------------------------------------------===//
14 #ifndef LLVM_MC_MCWIN64EH_H
15 #define LLVM_MC_MCWIN64EH_H
17 #include "llvm/MC/MCWinEH.h"
18 #include "llvm/Support/Win64EH.h"
26 static WinEH::Instruction PushNonVol(MCSymbol *L, unsigned Reg) {
27 return WinEH::Instruction(Win64EH::UOP_PushNonVol, L, Reg, -1);
29 static WinEH::Instruction Alloc(MCSymbol *L, unsigned Size) {
30 return WinEH::Instruction(Size > 128 ? UOP_AllocLarge : UOP_AllocSmall, L,
33 static WinEH::Instruction PushMachFrame(MCSymbol *L, bool Code) {
34 return WinEH::Instruction(UOP_PushMachFrame, L, -1, Code ? 1 : 0);
36 static WinEH::Instruction SaveNonVol(MCSymbol *L, unsigned Reg,
38 return WinEH::Instruction(Offset > 512 * 1024 - 8 ? UOP_SaveNonVolBig
42 static WinEH::Instruction SaveXMM(MCSymbol *L, unsigned Reg,
44 return WinEH::Instruction(Offset > 512 * 1024 - 8 ? UOP_SaveXMM128Big
48 static WinEH::Instruction SetFPReg(MCSymbol *L, unsigned Reg, unsigned Off) {
49 return WinEH::Instruction(UOP_SetFPReg, L, Reg, Off);
53 class UnwindEmitter : public WinEH::UnwindEmitter {
55 void Emit(MCStreamer &Streamer) const override;
56 void EmitUnwindInfo(MCStreamer &Streamer, WinEH::FrameInfo *FI) const override;
59 class ARM64UnwindEmitter : public WinEH::UnwindEmitter {
61 void Emit(MCStreamer &Streamer) const override;
62 void EmitUnwindInfo(MCStreamer &Streamer,
63 WinEH::FrameInfo *FI) const override;
67 } // end namespace llvm