SeedCollection.h

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//===- SeedCollection.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
//
//===----------------------------------------------------------------------===//
//
// The seed-collection pass of the bottom-up vectorizer.
//
 
#ifndef LLVM_TRANSFORMS_VECTORIZE_SANDBOXVECTORIZER_PASSES_SEEDCOLLECTION_H
#define LLVM_TRANSFORMS_VECTORIZE_SANDBOXVECTORIZER_PASSES_SEEDCOLLECTION_H
 
#include "llvm/SandboxIR/Pass.h"
#include "llvm/SandboxIR/PassManager.h"
 
namespace llvm::sandboxir {
 
/// This pass collects the instructions that can become vectorization "seeds",
/// like stores to consecutive memory addresses. It then goes over the collected
/// seeds, slicing them into appropriately sized chunks, creating a Region with
/// the seed slice as the Auxiliary vector and runs the region pass pipeline.
class SeedCollection final : public FunctionPass {
 
  /// The PM containing the pipeline of region passes.
  RegionPassManager RPM;
  /// The auxiliary argument passed to the pass that tells us that we should
  /// collect seeds of different types.
  static constexpr StringRef DiffTypesArgStr = "enable-diff-types";
  /// Collect seeds of different types.
  bool AllowDiffTypes = false;
 
public:
  SeedCollection(StringRef Pipeline, StringRef AuxArg);
  bool runOnFunction(Function &F, const Analyses &A) final;
  void printPipeline(raw_ostream &OS) const final {
    OS << getName() << "\n";
    RPM.printPipeline(OS);
  }
};
 
} // namespace llvm::sandboxir
 
#endif // LLVM_TRANSFORMS_VECTORIZE_SANDBOXVECTORIZER_PASSES_SEEDCOLLECTION_H