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1471de1de2
As mentioned in TODO comment, casting double to float causes NaNs to change bits. To avoid the change, this patch adds support for single-floating-point immediate value on MachineCode. Patch by Yuta Saito. Differential Revision: https://reviews.llvm.org/D77384
80 lines
1.9 KiB
C++
80 lines
1.9 KiB
C++
//===-- llvm/MC/MCInstBuilder.h - Simplify creation of MCInsts --*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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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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/// 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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/// 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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/// 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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/// Add a new single floating point immediate operand.
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MCInstBuilder &addSFPImm(uint32_t Val) {
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Inst.addOperand(MCOperand::createSFPImm(Val));
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return *this;
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}
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/// Add a new floating point immediate operand.
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MCInstBuilder &addDFPImm(uint64_t Val) {
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Inst.addOperand(MCOperand::createDFPImm(Val));
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return *this;
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}
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/// 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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/// 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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/// 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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