1 //===-- llvm/MC/MCInstBuilder.h - Simplify creation of MCInsts --*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file contains the MCInstBuilder class for convenient creation of 11 // MCInsts. 12 // 13 //===----------------------------------------------------------------------===// 14 15 #ifndef LLVM_MC_MCINSTBUILDER_H 16 #define LLVM_MC_MCINSTBUILDER_H 17 18 #include "llvm/MC/MCInst.h" 19 20 namespace llvm { 21 22 class MCInstBuilder { 23 MCInst Inst; 24 25 public: 26 /// \brief Create a new MCInstBuilder for an MCInst with a specific opcode. 27 MCInstBuilder(unsigned Opcode) { 28 Inst.setOpcode(Opcode); 29 } 30 31 /// \brief Add a new register operand. 32 MCInstBuilder &addReg(unsigned Reg) { 33 Inst.addOperand(MCOperand::CreateReg(Reg)); 34 return *this; 35 } 36 37 /// \brief Add a new integer immediate operand. 38 MCInstBuilder &addImm(int64_t Val) { 39 Inst.addOperand(MCOperand::CreateImm(Val)); 40 return *this; 41 } 42 43 /// \brief Add a new floating point immediate operand. 44 MCInstBuilder &addFPImm(double Val) { 45 Inst.addOperand(MCOperand::CreateFPImm(Val)); 46 return *this; 47 } 48 49 /// \brief Add a new MCExpr operand. 50 MCInstBuilder &addExpr(const MCExpr *Val) { 51 Inst.addOperand(MCOperand::CreateExpr(Val)); 52 return *this; 53 } 54 55 /// \brief Add a new MCInst operand. 56 MCInstBuilder &addInst(const MCInst *Val) { 57 Inst.addOperand(MCOperand::CreateInst(Val)); 58 return *this; 59 } 60 61 operator MCInst&() { 62 return Inst; 63 } 64 }; 65 66 } // end namespace llvm 67 68 #endif 69
