WebAssemblyInstrInfo.h revision 355940 
1//=- WebAssemblyInstrInfo.h - WebAssembly Instruction Information -*- 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/// \file
10/// This file contains the WebAssembly implementation of the
11/// TargetInstrInfo class.
12///
13//===----------------------------------------------------------------------===//
14
15#ifndef LLVM_LIB_TARGET_WEBASSEMBLY_WEBASSEMBLYINSTRINFO_H
16#define LLVM_LIB_TARGET_WEBASSEMBLY_WEBASSEMBLYINSTRINFO_H
17
18#include "WebAssemblyRegisterInfo.h"
19#include "llvm/CodeGen/TargetInstrInfo.h"
20
21#define GET_INSTRINFO_HEADER
22#include "WebAssemblyGenInstrInfo.inc"
23
24#define GET_INSTRINFO_OPERAND_ENUM
25#include "WebAssemblyGenInstrInfo.inc"
26
27namespace llvm {
28
29namespace WebAssembly {
30
31int16_t getNamedOperandIdx(uint16_t Opcode, uint16_t NamedIndex);
32
33}
34
35class WebAssemblySubtarget;
36
37class WebAssemblyInstrInfo final : public WebAssemblyGenInstrInfo {
38  const WebAssemblyRegisterInfo RI;
39
40public:
41  explicit WebAssemblyInstrInfo(const WebAssemblySubtarget &STI);
42
43  const WebAssemblyRegisterInfo &getRegisterInfo() const { return RI; }
44
45  bool isReallyTriviallyReMaterializable(const MachineInstr &MI,
46                                         AliasAnalysis *AA) const override;
47
48  void copyPhysReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI,
49                   const DebugLoc &DL, unsigned DestReg, unsigned SrcReg,
50                   bool KillSrc) const override;
51  MachineInstr *commuteInstructionImpl(MachineInstr &MI, bool NewMI,
52                                       unsigned OpIdx1,
53                                       unsigned OpIdx2) const override;
54
55  bool analyzeBranch(MachineBasicBlock &MBB, MachineBasicBlock *&TBB,
56                     MachineBasicBlock *&FBB,
57                     SmallVectorImpl<MachineOperand> &Cond,
58                     bool AllowModify = false) const override;
59  unsigned removeBranch(MachineBasicBlock &MBB,
60                        int *BytesRemoved = nullptr) const override;
61  unsigned insertBranch(MachineBasicBlock &MBB, MachineBasicBlock *TBB,
62                        MachineBasicBlock *FBB, ArrayRef<MachineOperand> Cond,
63                        const DebugLoc &DL,
64                        int *BytesAdded = nullptr) const override;
65  bool
66  reverseBranchCondition(SmallVectorImpl<MachineOperand> &Cond) const override;
67};
68
69} // end namespace llvm
70
71#endif
72