1 files changed, 50 insertions, 0 deletions
diff --git a/backend/include/rcc/CodeGen/GlobalISel/Legalizer.h b/backend/include/rcc/CodeGen/GlobalISel/Legalizer.h
new file mode 100644
index 0000000..8f2f3f7
--- /dev/null
+++ b/backend/include/rcc/CodeGen/GlobalISel/Legalizer.h
@@ -0,0 +1,50 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#ifndef RCC_CODEGEN_GLOBALISEL_LEGALIZER_H
+#define RCC_CODEGEN_GLOBALISEL_LEGALIZER_H
+
+#include "rcc/CodeGen/CommandFlags.h"
+#include "rcc/CodeGen/GlobalISel/LegalizerInfo.h"
+#include "rcc/CodeGen/MachinePassManager.h"
+#include "rcc/CodeGen/TargetCallLowering.h"
+
+#include <memory>
+
+namespace rcc {
+
+class Legalizer final : public MachineFunctionPass {
+public:
+  Legalizer(const LegalizerInfo *Info, OptimizationLevel Optimization,
+            LibcallLoweringInfo Libcalls = {},
+            GlobalISelAbortMode AbortMode = GlobalISelAbortMode::Enable)
+      : Info(Info), Optimization(Optimization), Libcalls(Libcalls), AbortMode(AbortMode) {}
+  Legalizer(const LegalizerInfo &Info, OptimizationLevel Optimization,
+            LibcallLoweringInfo Libcalls = {},
+            GlobalISelAbortMode AbortMode = GlobalISelAbortMode::Enable)
+      : Info(&Info), Optimization(Optimization), Libcalls(Libcalls), AbortMode(AbortMode) {}
+  Legalizer(std::unique_ptr<LegalizerInfo> Info, OptimizationLevel Optimization,
+            LibcallLoweringInfo Libcalls = {},
+            GlobalISelAbortMode AbortMode = GlobalISelAbortMode::Enable)
+      : OwnedInfo(std::move(Info)), Info(OwnedInfo.get()), Optimization(Optimization),
+        Libcalls(Libcalls), AbortMode(AbortMode) {}
+
+  [[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,
+                    MachineFunctionAnalysisManager &Analyses);
+
+  std::unique_ptr<LegalizerInfo> OwnedInfo;
+  const LegalizerInfo *Info = nullptr;
+  OptimizationLevel Optimization;
+  LibcallLoweringInfo Libcalls;
+  GlobalISelAbortMode AbortMode;
+};
+
+} // namespace rcc
+
+#endif // RCC_CODEGEN_GLOBALISEL_LEGALIZER_H