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// SPDX-License-Identifier: GPL-3.0-or-later
#ifndef RCC_CODEGEN_MACHINECOPYPROPAGATION_H
#define RCC_CODEGEN_MACHINECOPYPROPAGATION_H
#include "rcc/CodeGen/MachinePassManager.h"
#include <cstddef>
#include <cstdint>
namespace rcc {
class TargetInstrInfo;
enum class MachineCopyPropagationStage : std::uint8_t {
PreRegisterAllocation,
PostRegisterAllocation,
};
struct MachineCopyPropagationOptions final {
std::size_t MaximumPropagatedCopies = 10'000;
};
class MachineCopyPropagationPass final : public MachineFunctionPass {
public:
MachineCopyPropagationPass(const TargetInstrInfo &Info, MachineCopyPropagationStage Stage,
MachineCopyPropagationOptions Options = {}) noexcept
: Info(&Info), Stage(Stage), Options(Options) {}
[[nodiscard]] const MachinePassContract &contract() const noexcept override;
[[nodiscard]] Expected<MachinePassResult> run(MachineFunction &Function,
const TargetDescription &Target,
MachineFunctionAnalysisManager &Analyses) override;
private:
[[nodiscard]] Expected<MachinePassResult> runImplementation(MachineFunction &Function,
const TargetDescription &Target,
MachineActionReplay &Actions) const;
const TargetInstrInfo *Info;
MachineCopyPropagationStage Stage;
MachineCopyPropagationOptions Options;
};
} // namespace rcc
#endif // RCC_CODEGEN_MACHINECOPYPROPAGATION_H
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