From 4fe5ee649927d54d6fb74904d7b97ad0f63fd587 Mon Sep 17 00:00:00 2001 From: Richard-Qin-X Date: Tue, 11 Aug 2026 17:38:11 +0800 Subject: [RISCV] Legalize fixed-baseline RV64 MachineIR --- .../Target/RISCV/RISCVImmediateMaterialization.h | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) create mode 100644 backend/lib/Target/RISCV/RISCVImmediateMaterialization.h (limited to 'backend/lib/Target/RISCV/RISCVImmediateMaterialization.h') diff --git a/backend/lib/Target/RISCV/RISCVImmediateMaterialization.h b/backend/lib/Target/RISCV/RISCVImmediateMaterialization.h new file mode 100644 index 0000000..99d3876 --- /dev/null +++ b/backend/lib/Target/RISCV/RISCVImmediateMaterialization.h @@ -0,0 +1,22 @@ +// SPDX-License-Identifier: GPL-3.0-or-later + +#ifndef RCC_LIB_TARGET_RISCV_RISCVIMMEDIATEMATERIALIZATION_H +#define RCC_LIB_TARGET_RISCV_RISCVIMMEDIATEMATERIALIZATION_H + +#include +#include + +namespace rcc::riscv { + +inline constexpr std::size_t DefaultRV64IntegerBuildCost = 5; + +[[nodiscard]] std::size_t estimateRV64IntegerBuildCost(std::int64_t Value) noexcept; + +[[nodiscard]] bool +shouldUseRV64IntegerConstantPool( + std::int64_t Value, + std::size_t MaximumBuildCost = DefaultRV64IntegerBuildCost) noexcept; + +} // namespace rcc::riscv + +#endif // RCC_LIB_TARGET_RISCV_RISCVIMMEDIATEMATERIALIZATION_H -- cgit v1.2.3