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#pragma once
#ifdef __GNUC__
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-parameter"
#endif
//===- llvm/Transforms/Utils/LoopPeel.h ----- Peeling utilities -*- 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 defines some loop peeling utilities. It does not define any
// actual pass or policy.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_TRANSFORMS_UTILS_LOOPPEEL_H
#define LLVM_TRANSFORMS_UTILS_LOOPPEEL_H
#include "llvm/Analysis/TargetTransformInfo.h"
#include "llvm/Transforms/Utils/ValueMapper.h"
namespace llvm {
bool canPeel(const Loop *L);
/// VMap is the value-map that maps instructions from the original loop to
/// instructions in the last peeled-off iteration.
bool peelLoop(Loop *L, unsigned PeelCount, LoopInfo *LI, ScalarEvolution *SE,
DominatorTree &DT, AssumptionCache *AC, bool PreserveLCSSA,
ValueToValueMapTy &VMap);
TargetTransformInfo::PeelingPreferences
gatherPeelingPreferences(Loop *L, ScalarEvolution &SE,
const TargetTransformInfo &TTI,
std::optional<bool> UserAllowPeeling,
std::optional<bool> UserAllowProfileBasedPeeling,
bool UnrollingSpecficValues = false);
void computePeelCount(Loop *L, unsigned LoopSize,
TargetTransformInfo::PeelingPreferences &PP,
unsigned TripCount, DominatorTree &DT,
ScalarEvolution &SE, AssumptionCache *AC = nullptr,
unsigned Threshold = UINT_MAX);
} // end namespace llvm
#endif // LLVM_TRANSFORMS_UTILS_LOOPPEEL_H
#ifdef __GNUC__
#pragma GCC diagnostic pop
#endif
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