60 lines
1.8 KiB
C++
60 lines
1.8 KiB
C++
//===- LoopIdiomRecognize.h - Loop Idiom Recognize Pass ---------*- 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 pass implements an idiom recognizer that transforms simple loops into a
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// non-loop form. In cases that this kicks in, it can be a significant
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// performance win.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TRANSFORMS_SCALAR_LOOPIDIOMRECOGNIZE_H
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#define LLVM_TRANSFORMS_SCALAR_LOOPIDIOMRECOGNIZE_H
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#include "llvm/Analysis/LoopAnalysisManager.h"
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#include "llvm/IR/PassManager.h"
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namespace llvm {
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class Loop;
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class LPMUpdater;
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/// Options to disable Loop Idiom Recognize, which can be shared with other
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/// passes.
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struct DisableLIRP {
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/// When true, the entire pass is disabled.
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LLVM_ABI static bool All;
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/// When true, Memset is disabled.
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LLVM_ABI static bool Memset;
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/// When true, Memcpy is disabled.
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LLVM_ABI static bool Memcpy;
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/// When true, Strlen is disabled.
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LLVM_ABI static bool Strlen;
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/// When true, Wcslen is disabled.
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LLVM_ABI static bool Wcslen;
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/// When true, HashRecognize is disabled.
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LLVM_ABI static bool HashRecognize;
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};
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/// Performs Loop Idiom Recognize Pass.
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class LoopIdiomRecognizePass
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: public OptionalPassInfoMixin<LoopIdiomRecognizePass> {
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public:
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LLVM_ABI PreservedAnalyses run(Loop &L, LoopAnalysisManager &AM,
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LoopStandardAnalysisResults &AR,
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LPMUpdater &U);
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};
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} // end namespace llvm
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#endif // LLVM_TRANSFORMS_SCALAR_LOOPIDIOMRECOGNIZE_H
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