[CodeGen] Implement machine optimization and scheduling

1 files changed, 37 insertions, 0 deletions

diff --git a/backend/include/rcc/CodeGen/MachineScheduler.h b/backend/include/rcc/CodeGen/MachineScheduler.h
new file mode 100644
index 0000000..2b48fe7
--- /dev/null
+++ b/backend/include/rcc/CodeGen/MachineScheduler.h
@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#ifndef RCC_CODEGEN_MACHINESCHEDULER_H
+#define RCC_CODEGEN_MACHINESCHEDULER_H
+
+#include "rcc/CodeGen/MachinePass.h"
+
+#include <cstddef>
+
+namespace rcc {
+
+class TargetSchedulingModel;
+
+struct MachineSchedulerOptions final {
+  std::size_t MaximumRegionSize = 512;
+  bool EnableBidirectionalScheduling = true;
+};
+
+class MachineSchedulerPass final : public MachineFunctionPass {
+public:
+  explicit MachineSchedulerPass(const TargetSchedulingModel &Model,
+                                MachineSchedulerOptions Options = {}) noexcept
+      : Model(&Model), Options(Options) {}
+
+  [[nodiscard]] const MachinePassContract &contract() const noexcept override;
+  [[nodiscard]] Expected<MachinePassResult> run(MachineFunction &Function,
+                                                const TargetDescription &Target,
+                                                MachineAnalysisManager &Analyses) override;
+
+private:
+  const TargetSchedulingModel *Model;
+  MachineSchedulerOptions Options;
+};
+
+} // namespace rcc
+
+#endif // RCC_CODEGEN_MACHINESCHEDULER_H