Mov.h

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// SPDX-License-Identifier: MIT
 
#pragma once
 
#include <memory>
#include <utility>
 
#include "mini-llvm/common/ExtensionMode.h"
#include "mini-llvm/mir/Instruction.h"
#include "mini-llvm/mir/Instruction/UnaryOperator.h"
#include "mini-llvm/mir/InstructionVisitor.h"
#include "mini-llvm/mir/Register.h"
#include "mini-llvm/utils/Compiler.h"
#include "mini-llvm/utils/Memory.h"
 
namespace mini_llvm::mir {
 
class MINI_LLVM_EXPORT Mov : public UnaryOperator {
public:
    Mov(int width,
        std::shared_ptr<Register> dst,
        std::shared_ptr<Register> src,
        ExtensionMode extMode = ExtensionMode::kNo)
        : UnaryOperator(width, std::move(dst), std::move(src), extMode) {}
 
    bool isCoalescent() const override {
        return true;
    }
 
    Register *coalescenceDst() const override {
        return &*dst();
    }
 
    Register *coalescenceSrc() const override {
        return &*src();
    }
 
    bool hasSideEffects() const override {
        return false;
    }
 
    std::unique_ptr<Instruction> clone() const override {
        return std::make_unique<Mov>(
            width(), share(*dst()), share(*src()), extMode());
    }
 
    void accept(InstructionVisitor &visitor) override {
        visitor.visitMov(*this);
    }
 
    void accept(InstructionVisitor &visitor) const override {
        visitor.visitMov(*this);
    }
 
protected:
    const char *mnemonic() const override {
        return "MOV";
    }
};
 
} // namespace mini_llvm::mir