LoopIdiomVectorize.h

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//===----------LoopIdiomVectorize.h -----------------------------*- 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
//
//===----------------------------------------------------------------------===//
 
#ifndef LLVM_LIB_TRANSFORMS_VECTORIZE_LOOPIDIOMVECTORIZE_H
#define LLVM_LIB_TRANSFORMS_VECTORIZE_LOOPIDIOMVECTORIZE_H
 
#include "llvm/IR/PassManager.h"
#include "llvm/Transforms/Scalar/LoopPassManager.h"
 
namespace llvm {
enum class LoopIdiomVectorizeStyle { Masked, Predicated };
 
class LoopIdiomVectorizePass : public PassInfoMixin<LoopIdiomVectorizePass> {
  LoopIdiomVectorizeStyle VectorizeStyle = LoopIdiomVectorizeStyle::Masked;
 
  // The VF used in vectorizing the byte compare pattern.
  unsigned ByteCompareVF = 16;
 
public:
  LoopIdiomVectorizePass() = default;
  explicit LoopIdiomVectorizePass(LoopIdiomVectorizeStyle S)
      : VectorizeStyle(S) {}
 
  LoopIdiomVectorizePass(LoopIdiomVectorizeStyle S, unsigned BCVF)
      : VectorizeStyle(S), ByteCompareVF(BCVF) {}
 
  PreservedAnalyses run(Loop &L, LoopAnalysisManager &AM,
                        LoopStandardAnalysisResults &AR, LPMUpdater &U);
};
} // namespace llvm
#endif // LLVM_LIB_TRANSFORMS_VECTORIZE_LOOPIDIOMVECTORIZE_H