#pragma once #ifdef __GNUC__ #pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Wunused-parameter" #endif //== llvm/Support/DivisonByConstantInfo.h - division by constant -*- C++ -*-==// // // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception // //===----------------------------------------------------------------------===// /// /// This file implements support for optimizing divisions by a constant /// //===----------------------------------------------------------------------===// #ifndef LLVM_SUPPORT_DIVISIONBYCONSTANTINFO_H #define LLVM_SUPPORT_DIVISIONBYCONSTANTINFO_H #include "llvm/ADT/APInt.h" namespace llvm { /// Magic data for optimising signed division by a constant. struct SignedDivisionByConstantInfo { static SignedDivisionByConstantInfo get(const APInt &D); APInt Magic; ///< magic number unsigned ShiftAmount; ///< shift amount }; /// Magic data for optimising unsigned division by a constant. struct UnsignedDivisonByConstantInfo { static UnsignedDivisonByConstantInfo get(const APInt &D, unsigned LeadingZeros = 0); APInt Magic; ///< magic number bool IsAdd; ///< add indicator unsigned ShiftAmount; ///< shift amount }; } // namespace llvm #endif #ifdef __GNUC__ #pragma GCC diagnostic pop #endif