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/ADT/ArrayRef.h"
20#include "llvm/CodeGen/TargetInstrInfo.h"
21
22#define GET_INSTRINFO_HEADER
23#include "WebAssemblyGenInstrInfo.inc"
24
25#define GET_INSTRINFO_OPERAND_ENUM
26#include "WebAssemblyGenInstrInfo.inc"
27
28namespace llvm {
29
30namespace WebAssembly {
31
32int16_t getNamedOperandIdx(uint16_t Opcode, uint16_t NamedIndex);
33
34}
35
36class WebAssemblySubtarget;
37
38class WebAssemblyInstrInfo final : public WebAssemblyGenInstrInfo {
39  const WebAssemblyRegisterInfo RI;
40
41public:
42  explicit WebAssemblyInstrInfo(const WebAssemblySubtarget &STI);
43
44  const WebAssemblyRegisterInfo &getRegisterInfo() const { return RI; }
45
46  bool isReallyTriviallyReMaterializable(const MachineInstr &MI,
47                                         AAResults *AA) const override;
48
49  void copyPhysReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI,
50                   const DebugLoc &DL, MCRegister DestReg, MCRegister SrcReg,
51                   bool KillSrc) const override;
52  MachineInstr *commuteInstructionImpl(MachineInstr &MI, bool NewMI,
53                                       unsigned OpIdx1,
54                                       unsigned OpIdx2) const override;
55
56  bool analyzeBranch(MachineBasicBlock &MBB, MachineBasicBlock *&TBB,
57                     MachineBasicBlock *&FBB,
58                     SmallVectorImpl<MachineOperand> &Cond,
59                     bool AllowModify = false) const override;
60  unsigned removeBranch(MachineBasicBlock &MBB,
61                        int *BytesRemoved = nullptr) const override;
62  unsigned insertBranch(MachineBasicBlock &MBB, MachineBasicBlock *TBB,
63                        MachineBasicBlock *FBB, ArrayRef<MachineOperand> Cond,
64                        const DebugLoc &DL,
65                        int *BytesAdded = nullptr) const override;
66  bool
67  reverseBranchCondition(SmallVectorImpl<MachineOperand> &Cond) const override;
68
69  ArrayRef<std::pair<int, const char *>>
70  getSerializableTargetIndices() const override;
71};
72
73} // end namespace llvm
74
75#endif
76