From 495c675771f43cfa12ab7a426a538be72fec1805 Mon Sep 17 00:00:00 2001 From: Richard-Qin-X Date: Sun, 9 Aug 2026 17:03:19 +0800 Subject: [CodeGen] Implement machine optimization and scheduling --- .../include/rcc/CodeGen/MachineCopyPropagation.h | 46 ++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 backend/include/rcc/CodeGen/MachineCopyPropagation.h (limited to 'backend/include/rcc/CodeGen/MachineCopyPropagation.h') diff --git a/backend/include/rcc/CodeGen/MachineCopyPropagation.h b/backend/include/rcc/CodeGen/MachineCopyPropagation.h new file mode 100644 index 0000000..5f84ac6 --- /dev/null +++ b/backend/include/rcc/CodeGen/MachineCopyPropagation.h @@ -0,0 +1,46 @@ +// SPDX-License-Identifier: GPL-3.0-or-later + +#ifndef RCC_CODEGEN_MACHINECOPYPROPAGATION_H +#define RCC_CODEGEN_MACHINECOPYPROPAGATION_H + +#include "rcc/CodeGen/MachinePass.h" + +#include +#include + +namespace rcc { + +class TargetSSAInfo; + +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 TargetSSAInfo &Info, MachineCopyPropagationStage Stage, + MachineCopyPropagationOptions Options = {}) noexcept + : Info(&Info), Stage(Stage), Options(Options) {} + + [[nodiscard]] const MachinePassContract &contract() const noexcept override; + [[nodiscard]] Expected run(MachineFunction &Function, + const TargetDescription &Target, + MachineAnalysisManager &Analyses) override; + +private: + [[nodiscard]] Expected + runImplementation(MachineFunction &Function, const TargetDescription &Target) const; + + const TargetSSAInfo *Info; + MachineCopyPropagationStage Stage; + MachineCopyPropagationOptions Options; +}; + +} // namespace rcc + +#endif // RCC_CODEGEN_MACHINECOPYPROPAGATION_H -- cgit v1.2.3