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llvm-mirror/include/llvm/Transforms/Scalar/LoopDistribute.h
Adam Nemet 40da722c35 [LoopDist] Port to new PM
Summary:
The direct motivation for the port is to ensure that the OptRemarkEmitter
tests work with the new PM.

This remains a function pass because we not only create multiple loops
but could also version the original loop.

In the test I need to invoke opt
with -passes='require<aa>,loop-distribute'.  LoopDistribute does not
directly depend on AA however LAA does.  LAA uses getCachedResult so
I *think* we need manually pull in 'aa'.

Reviewers: davidxl, silvas

Subscribers: sanjoy, llvm-commits, mzolotukhin

Differential Revision: https://reviews.llvm.org/D22437

llvm-svn: 275811
2016-07-18 16:29:27 +00:00

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//===- LoopDistribute.cpp - Loop Distribution Pass --------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements the Loop Distribution Pass. Its main focus is to
// distribute loops that cannot be vectorized due to dependence cycles. It
// tries to isolate the offending dependences into a new loop allowing
// vectorization of the remaining parts.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_TRANSFORMS_SCALAR_LOOPDISTRIBUTE_H
#define LLVM_TRANSFORMS_SCALAR_LOOPDISTRIBUTE_H
#include "llvm/IR/PassManager.h"
namespace llvm {
class LoopDistributePass : public PassInfoMixin<LoopDistributePass> {
public:
PreservedAnalyses run(Function &F, FunctionAnalysisManager &AM);
};
} // end namespace llvm
#endif // LLVM_TRANSFORMS_SCALAR_LOOPDISTRIBUTE_H