1//===-- llvm/MC/MCInstBuilder.h - Simplify creation of MCInsts --*- 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// This file contains the MCInstBuilder class for convenient creation of
10// MCInsts.
11//
12//===----------------------------------------------------------------------===//
13
14#ifndef LLVM_MC_MCINSTBUILDER_H
15#define LLVM_MC_MCINSTBUILDER_H
16
17#include "llvm/MC/MCInst.h"
18
19namespace llvm {
20
21class MCInstBuilder {
22  MCInst Inst;
23
24public:
25  /// Create a new MCInstBuilder for an MCInst with a specific opcode.
26  MCInstBuilder(unsigned Opcode) {
27    Inst.setOpcode(Opcode);
28  }
29
30  /// Add a new register operand.
31  MCInstBuilder &addReg(unsigned Reg) {
32    Inst.addOperand(MCOperand::createReg(Reg));
33    return *this;
34  }
35
36  /// Add a new integer immediate operand.
37  MCInstBuilder &addImm(int64_t Val) {
38    Inst.addOperand(MCOperand::createImm(Val));
39    return *this;
40  }
41
42  /// Add a new floating point immediate operand.
43  MCInstBuilder &addFPImm(double Val) {
44    Inst.addOperand(MCOperand::createFPImm(Val));
45    return *this;
46  }
47
48  /// Add a new MCExpr operand.
49  MCInstBuilder &addExpr(const MCExpr *Val) {
50    Inst.addOperand(MCOperand::createExpr(Val));
51    return *this;
52  }
53
54  /// Add a new MCInst operand.
55  MCInstBuilder &addInst(const MCInst *Val) {
56    Inst.addOperand(MCOperand::createInst(Val));
57    return *this;
58  }
59
60  /// Add an operand.
61  MCInstBuilder &addOperand(const MCOperand &Op) {
62    Inst.addOperand(Op);
63    return *this;
64  }
65
66  operator MCInst&() {
67    return Inst;
68  }
69};
70
71} // end namespace llvm
72
73#endif
74