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#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
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