include/llvm/Transforms/Scalar/LoopIdiomRecognize.h

   1 //===- LoopIdiomRecognize.h - Loop Idiom Recognize Pass ---------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 //
   9 // This pass implements an idiom recognizer that transforms simple loops into a
  10 // non-loop form.  In cases that this kicks in, it can be a significant
  11 // performance win.
  12 //
  13 //===----------------------------------------------------------------------===//
  14
  15 #ifndef LLVM_TRANSFORMS_SCALAR_LOOPIDIOMRECOGNIZE_H
  16 #define LLVM_TRANSFORMS_SCALAR_LOOPIDIOMRECOGNIZE_H
  17
  18 #include "llvm/Analysis/LoopAnalysisManager.h"
  19 #include "llvm/IR/PassManager.h"
  20
  21 namespace llvm {
  22
  23 class Loop;
  24 class LPMUpdater;
  25
  26 /// Performs Loop Idiom Recognize Pass.
  27 class LoopIdiomRecognizePass : public PassInfoMixin<LoopIdiomRecognizePass> {
  28 public:
  29   PreservedAnalyses run(Loop &L, LoopAnalysisManager &AM,
  30                         LoopStandardAnalysisResults &AR, LPMUpdater &U);
  31 };
  32
  33 } // end namespace llvm
  34
  35 #endif // LLVM_TRANSFORMS_SCALAR_LOOPIDIOMRECOGNIZE_H