[GlobalISel] Split the generic pipeline components

1 files changed, 36 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..7f86d16
--- /dev/null
+++ b/backend/include/rcc/CodeGen/GlobalISel/Legalizer.h
@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#ifndef RCC_CODEGEN_GLOBALISEL_LEGALIZER_H
+#define RCC_CODEGEN_GLOBALISEL_LEGALIZER_H
+
+#include "rcc/CodeGen/GlobalISel/LegalizerInfo.h"
+#include "rcc/CodeGen/MachinePass.h"
+
+#include <memory>
+
+namespace rcc {
+
+class Legalizer final : public MachineFunctionPass {
+public:
+  explicit Legalizer(const LegalizerInfo *Info) : Info(Info) {}
+  explicit Legalizer(const LegalizerInfo &Info) : Info(&Info) {}
+  explicit Legalizer(std::unique_ptr<LegalizerInfo> Info)
+      : OwnedInfo(std::move(Info)), Info(OwnedInfo.get()) {}
+
+  [[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,
+                                                              MachineActionReplay &Actions);
+
+  std::unique_ptr<LegalizerInfo> OwnedInfo;
+  const LegalizerInfo *Info = nullptr;
+};
+
+} // namespace rcc
+
+#endif // RCC_CODEGEN_GLOBALISEL_LEGALIZER_H