1 files changed, 37 insertions, 0 deletions
diff --git a/backend/lib/Target/RISCV/GISel/RISCVLegalizerInfo.h b/backend/lib/Target/RISCV/GISel/RISCVLegalizerInfo.h
new file mode 100644
index 0000000..36d7486
--- /dev/null
+++ b/backend/lib/Target/RISCV/GISel/RISCVLegalizerInfo.h
@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#ifndef RCC_LIB_TARGET_RISCV_GISEL_RISCVLEGALIZERINFO_H
+#define RCC_LIB_TARGET_RISCV_GISEL_RISCVLEGALIZERINFO_H
+
+#include "rcc/CodeGen/GlobalISel/LegalizerInfo.h"
+
+namespace rcc {
+class MachineIRBuilder;
+} // namespace rcc
+
+namespace rcc::riscv {
+
+class RISCVSubtarget;
+
+class RISCVLegalizerInfo final : public LegalizerInfo {
+public:
+  explicit RISCVLegalizerInfo(const RISCVSubtarget &Subtarget);
+  [[nodiscard]] Expected<void> legalizeCustom(LegalizerHelper &Helper, MachineInstr &Instruction,
+                                              const LegalizationDecision &Decision) const override;
+  [[nodiscard]] Expected<bool> legalizeIntrinsic(LegalizerHelper &Helper,
+                                                 MachineInstr &Instruction) const override;
+  [[nodiscard]] bool isSExtCheaperThanZExt(LowLevelType SourceType,
+                                           LowLevelType DestinationType) const override;
+
+private:
+  [[nodiscard]] Expected<void> legalizeBRJT(MachineInstr &Instruction,
+                                            MachineIRBuilder &MIRBuilder) const;
+  [[nodiscard]] Expected<void> legalizeVAStart(MachineInstr &Instruction,
+                                               MachineIRBuilder &MIRBuilder) const;
+
+  const RISCVSubtarget &Subtarget;
+};
+
+} // namespace rcc::riscv
+
+#endif // RCC_LIB_TARGET_RISCV_GISEL_RISCVLEGALIZERINFO_H