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// SPDX-License-Identifier: GPL-3.0-or-later
#ifndef RCC_LIB_TARGET_RISCV_RISCVIMMEDIATEMATERIALIZATION_H
#define RCC_LIB_TARGET_RISCV_RISCVIMMEDIATEMATERIALIZATION_H
#include <cstddef>
#include <cstdint>
#include <vector>
namespace rcc::riscv {
enum class InstructionOpcode : std::uint32_t;
class RISCVSubtargetFeatures;
enum class ImmediateMaterializationOperandKind : std::uint8_t {
Immediate,
RegisterImmediate,
};
struct ImmediateMaterializationInstruction final {
InstructionOpcode Opcode;
std::int64_t Immediate = 0;
ImmediateMaterializationOperandKind OperandKind =
ImmediateMaterializationOperandKind::RegisterImmediate;
};
using ImmediateMaterializationSequence = std::vector<ImmediateMaterializationInstruction>;
inline constexpr std::size_t DefaultRV64IntegerBuildCost = 5;
[[nodiscard]] ImmediateMaterializationSequence
generateRV64IntegerMaterialization(std::int64_t Value, const RISCVSubtargetFeatures &Features);
[[nodiscard]] std::size_t estimateRV64IntegerBuildCost(std::int64_t Value,
const RISCVSubtargetFeatures &Features);
[[nodiscard]] bool
shouldUseRV64IntegerConstantPool(std::int64_t Value, const RISCVSubtargetFeatures &Features,
std::size_t MaximumBuildCost = DefaultRV64IntegerBuildCost);
} // namespace rcc::riscv
#endif // RCC_LIB_TARGET_RISCV_RISCVIMMEDIATEMATERIALIZATION_H
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