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) const override;
47
48 void copyPhysReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI,
49 const DebugLoc &DL, MCRegister DestReg, MCRegister 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 ArrayRef<std::pair<int, const char *>>
69 getSerializableTargetIndices() const override;
70
71 const MachineOperand &getCalleeOperand(const MachineInstr &MI) const override;
72
73 bool isExplicitTargetIndexDef(const MachineInstr &MI, int &Index,
74 int64_t &Offset) const override;
75};
76
77} // end namespace llvm
78
79#endif
80

source code of llvm/lib/Target/WebAssembly/WebAssemblyInstrInfo.h