6024e5c395
clang 20.0.0 (based on r547379) from build 12806354. Bug: http://b/379133546 Test: N/A Change-Id: I2eb8938af55d809de674be63cb30cf27e801862b Upstream-Commit: ad834e67b1105d15ef907f6255d4c96e8e733f57
46 lines
1.8 KiB
C++
46 lines
1.8 KiB
C++
//===- llvm/Transforms/Utils/LoopPeel.h ----- Peeling utilities -*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines some loop peeling utilities. It does not define any
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// actual pass or policy.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TRANSFORMS_UTILS_LOOPPEEL_H
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#define LLVM_TRANSFORMS_UTILS_LOOPPEEL_H
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#include "llvm/Analysis/TargetTransformInfo.h"
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#include "llvm/Transforms/Utils/ValueMapper.h"
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namespace llvm {
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bool canPeel(const Loop *L);
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/// VMap is the value-map that maps instructions from the original loop to
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/// instructions in the last peeled-off iteration.
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bool peelLoop(Loop *L, unsigned PeelCount, LoopInfo *LI, ScalarEvolution *SE,
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DominatorTree &DT, AssumptionCache *AC, bool PreserveLCSSA,
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ValueToValueMapTy &VMap);
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TargetTransformInfo::PeelingPreferences
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gatherPeelingPreferences(Loop *L, ScalarEvolution &SE,
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const TargetTransformInfo &TTI,
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std::optional<bool> UserAllowPeeling,
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std::optional<bool> UserAllowProfileBasedPeeling,
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bool UnrollingSpecficValues = false);
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void computePeelCount(Loop *L, unsigned LoopSize,
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TargetTransformInfo::PeelingPreferences &PP,
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unsigned TripCount, DominatorTree &DT,
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ScalarEvolution &SE, AssumptionCache *AC = nullptr,
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unsigned Threshold = UINT_MAX);
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} // end namespace llvm
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#endif // LLVM_TRANSFORMS_UTILS_LOOPPEEL_H
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