[RISCV] Split the GlobalISel target components

1 files changed, 28 insertions, 0 deletions

diff --git a/backend/lib/Target/RISCV/GISel/RISCVRegisterBankInfo.h b/backend/lib/Target/RISCV/GISel/RISCVRegisterBankInfo.h
new file mode 100644
index 0000000..543bc4d
--- /dev/null
+++ b/backend/lib/Target/RISCV/GISel/RISCVRegisterBankInfo.h
@@ -0,0 +1,28 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#ifndef RCC_LIB_TARGET_RISCV_GISEL_RISCVREGISTERBANKINFO_H
+#define RCC_LIB_TARGET_RISCV_GISEL_RISCVREGISTERBANKINFO_H
+
+#include "rcc/CodeGen/RegisterBankInfo.h"
+
+namespace rcc::riscv {
+
+class RISCVRegisterBankInfo final : public RegisterBankInfo {
+public:
+  [[nodiscard]] Expected<RegisterBankID> selectBank(const MachineFunction &Function, Register Reg,
+                                                    const VirtualRegisterInfo &Info,
+                                                    const MachineInstr *Instruction,
+                                                    const TargetDescription &Target) const override;
+  [[nodiscard]] Expected<void> constrainInstruction(MachineInstr &Instruction,
+                                                    MachineFunction &Function,
+                                                    const TargetDescription &Target) const override;
+  [[nodiscard]] Expected<void> constrainRegister(MachineFunction &Function, Register Reg,
+                                                 const TargetDescription &Target) const;
+  [[nodiscard]] Expected<void> validateInstruction(const MachineInstr &Instruction,
+                                                   const MachineFunction &Function,
+                                                   const TargetDescription &Target) const override;
+};
+
+} // namespace rcc::riscv
+
+#endif // RCC_LIB_TARGET_RISCV_GISEL_RISCVREGISTERBANKINFO_H