1 files changed, 40 insertions, 0 deletions
diff --git a/backend/include/rcc/CodeGen/MachineCombiner.h b/backend/include/rcc/CodeGen/MachineCombiner.h
new file mode 100644
index 0000000..943d6ad
--- /dev/null
+++ b/backend/include/rcc/CodeGen/MachineCombiner.h
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#ifndef RCC_CODEGEN_MACHINECOMBINER_H
+#define RCC_CODEGEN_MACHINECOMBINER_H
+
+#include "rcc/CodeGen/MachineCombinerPattern.h"
+#include "rcc/CodeGen/MachinePass.h"
+
+#include <cstddef>
+
+namespace rcc {
+
+struct MachineCombinerOptions final {
+  std::size_t MaximumRewrites = 4096;
+  std::size_t MaximumIterations = 8;
+};
+
+class MachineCombinerPass final : public MachineFunctionPass {
+public:
+  MachineCombinerPass(const TargetMachineCombinerInfo &Info, MachineCombinerStage Stage,
+                      MachineCombinerOptions Options = {}) noexcept
+      : Info(&Info), Stage(Stage), Options(Options) {}
+
+  [[nodiscard]] const MachinePassContract &contract() const noexcept override;
+  [[nodiscard]] Expected<MachinePassResult> run(MachineFunction &Function,
+                                                const TargetDescription &Target,
+                                                MachineAnalysisManager &Analyses) override;
+
+private:
+  [[nodiscard]] Expected<MachinePassResult>
+  runImplementation(MachineFunction &Function, const TargetDescription &Target) const;
+
+  const TargetMachineCombinerInfo *Info;
+  MachineCombinerStage Stage;
+  MachineCombinerOptions Options;
+};
+
+} // namespace rcc
+
+#endif // RCC_CODEGEN_MACHINECOMBINER_H