1 files changed, 76 insertions, 0 deletions
diff --git a/backend/include/rcc/Target/RISCV/RISCVTarget.h b/backend/include/rcc/Target/RISCV/RISCVTarget.h
new file mode 100644
index 0000000..6d6b806
--- /dev/null
+++ b/backend/include/rcc/Target/RISCV/RISCVTarget.h
@@ -0,0 +1,76 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#ifndef RCC_TARGET_RISCV_RISCVTARGET_H
+#define RCC_TARGET_RISCV_RISCVTARGET_H
+
+#include "rcc/CodeGen/TargetDescription.h"
+#include "rcc/Support/Error.h"
+#include "rcc/Target/RISCV/RISCVInstructions.h"
+#include "rcc/Target/RISCV/RISCVRegisters.h"
+
+#include <cstdint>
+#include <memory>
+#include <span>
+#include <string_view>
+
+namespace rcc::riscv {
+
+struct SchedulingClassInfo final {
+  SchedulingClassID ID;
+  std::string_view Name;
+  std::uint32_t MicroOps = 0;
+  std::uint32_t Latency = 0;
+};
+
+struct EncodingCategoryInfo final {
+  EncodingCategoryID ID;
+  std::string_view Name;
+  std::uint32_t SizeInBytes = 0;
+};
+
+struct AssemblyFormatInfo final {
+  AssemblyFormatID ID;
+  std::string_view Name;
+};
+
+struct AssemblyInstructionInfo final {
+  Opcode InstructionOpcode;
+  std::string_view Mnemonic;
+  AssemblyFormatID Format;
+  std::uint32_t Encoding = 0;
+};
+
+struct CallingConventionInfo final {
+  CallingConvention ID;
+  std::string_view Name;
+  RegisterClassID IntegerRegisterClass;
+  RegisterClassID FloatingRegisterClass;
+  std::span<const PhysicalRegister> IntegerArgumentRegisters;
+  std::span<const PhysicalRegister> FloatingArgumentRegisters;
+  std::span<const PhysicalRegister> IntegerReturnRegisters;
+  std::span<const PhysicalRegister> FloatingReturnRegisters;
+  std::string_view PreservedMaskName;
+  std::uint32_t StackAlignmentBytes = 0;
+  std::uint32_t StackArgumentAlignmentBytes = 0;
+  std::uint32_t ShadowSpaceBytes = 0;
+  bool SupportsVarArgs = false;
+  bool SupportsTailCalls = false;
+};
+
+[[nodiscard]] Expected<PhysicalRegister> physicalRegister(PhysicalRegisterID ID);
+[[nodiscard]] Expected<TargetRegisterInfo> createRegisterInfo();
+[[nodiscard]] Expected<TargetMIRTextInfo> createMIRTextInfo();
+[[nodiscard]] Expected<TargetDescription> createTargetDescription();
+[[nodiscard]] std::shared_ptr<const RegisterMask>
+createCallPreservedMask(CallingConvention Convention);
+[[nodiscard]] std::span<const SchedulingClassInfo> schedulingClasses() noexcept;
+[[nodiscard]] std::span<const EncodingCategoryInfo> encodingCategories() noexcept;
+[[nodiscard]] std::span<const AssemblyFormatInfo> assemblyFormats() noexcept;
+[[nodiscard]] std::span<const AssemblyInstructionInfo> assemblyInstructions() noexcept;
+[[nodiscard]] const AssemblyInstructionInfo *assemblyInstruction(Opcode InstructionOpcode) noexcept;
+[[nodiscard]] std::span<const CallingConventionInfo> callingConventions() noexcept;
+[[nodiscard]] const CallingConventionInfo *callingConvention(CallingConvention ID) noexcept;
+
+} // namespace rcc::riscv
+
+#endif // RCC_TARGET_RISCV_RISCVTARGET_H