[CodeGen] Implement machine optimization and scheduling

1 files changed, 36 insertions, 0 deletions

diff --git a/backend/include/rcc/CodeGen/MachineShrinkWrapping.h b/backend/include/rcc/CodeGen/MachineShrinkWrapping.h
new file mode 100644
index 0000000..ec295cd
--- /dev/null
+++ b/backend/include/rcc/CodeGen/MachineShrinkWrapping.h
@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#ifndef RCC_CODEGEN_MACHINESHRINKWRAPPING_H
+#define RCC_CODEGEN_MACHINESHRINKWRAPPING_H
+
+#include "rcc/CodeGen/MachinePass.h"
+
+#include <cstddef>
+
+namespace rcc {
+
+class TargetFrameLowering;
+
+struct MachineShrinkWrappingOptions final {
+  std::size_t MaximumAnalyzedBlocks = 10'000;
+};
+
+class MachineShrinkWrappingPass final : public MachineFunctionPass {
+public:
+  explicit MachineShrinkWrappingPass(const TargetFrameLowering &Info,
+                                     MachineShrinkWrappingOptions Options = {}) noexcept
+      : Info(&Info), Options(Options) {}
+
+  [[nodiscard]] const MachinePassContract &contract() const noexcept override;
+  [[nodiscard]] Expected<MachinePassResult> run(MachineFunction &Function,
+                                                const TargetDescription &Target,
+                                                MachineAnalysisManager &Analyses) override;
+
+private:
+  const TargetFrameLowering *Info;
+  MachineShrinkWrappingOptions Options;
+};
+
+} // namespace rcc
+
+#endif // RCC_CODEGEN_MACHINESHRINKWRAPPING_H