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a1c0ce8518
X86 backend. The code generated for symbolic targets is identical to the code generated for constant targets, except that a relocation is emitted to fix up the actual target address at link-time. This allows IR and object files containing patchpoints to be cached across JIT-invocations where the target address may change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@235483 91177308-0d34-0410-b5e6-96231b3b80d8
75 lines
1.8 KiB
C++
75 lines
1.8 KiB
C++
//===-- llvm/MC/MCInstBuilder.h - Simplify creation of MCInsts --*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains the MCInstBuilder class for convenient creation of
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// MCInsts.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_MC_MCINSTBUILDER_H
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#define LLVM_MC_MCINSTBUILDER_H
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#include "llvm/MC/MCInst.h"
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namespace llvm {
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class MCInstBuilder {
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MCInst Inst;
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public:
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/// \brief Create a new MCInstBuilder for an MCInst with a specific opcode.
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MCInstBuilder(unsigned Opcode) {
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Inst.setOpcode(Opcode);
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}
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/// \brief Add a new register operand.
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MCInstBuilder &addReg(unsigned Reg) {
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Inst.addOperand(MCOperand::CreateReg(Reg));
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return *this;
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}
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/// \brief Add a new integer immediate operand.
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MCInstBuilder &addImm(int64_t Val) {
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Inst.addOperand(MCOperand::CreateImm(Val));
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return *this;
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}
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/// \brief Add a new floating point immediate operand.
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MCInstBuilder &addFPImm(double Val) {
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Inst.addOperand(MCOperand::CreateFPImm(Val));
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return *this;
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}
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/// \brief Add a new MCExpr operand.
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MCInstBuilder &addExpr(const MCExpr *Val) {
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Inst.addOperand(MCOperand::CreateExpr(Val));
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return *this;
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}
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/// \brief Add a new MCInst operand.
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MCInstBuilder &addInst(const MCInst *Val) {
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Inst.addOperand(MCOperand::CreateInst(Val));
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return *this;
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}
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/// \brief Add an operand.
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MCInstBuilder &addOperand(const MCOperand &Op) {
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Inst.addOperand(Op);
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return *this;
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}
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operator MCInst&() {
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return Inst;
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}
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};
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} // end namespace llvm
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#endif
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