LLVM  10.0.0svn
LoopIdiomRecognize.h
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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 
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:
31 };
32 
33 } // end namespace llvm
34 
35 #endif // LLVM_TRANSFORMS_SCALAR_LOOPIDIOMRECOGNIZE_H
This class represents lattice values for constants.
Definition: AllocatorList.h:23
The adaptor from a function pass to a loop pass computes these analyses and makes them available to t...
A CRTP mix-in to automatically provide informational APIs needed for passes.
Definition: PassManager.h:372
This header provides classes for managing per-loop analyses.
A set of analyses that are preserved following a run of a transformation pass.
Definition: PassManager.h:153
This class provides an interface for updating the loop pass manager based on mutations to the loop ne...
Represents a single loop in the control flow graph.
Definition: LoopInfo.h:506
A container for analyses that lazily runs them and caches their results.
This header defines various interfaces for pass management in LLVM.
PreservedAnalyses run(Loop &L, LoopAnalysisManager &AM, LoopStandardAnalysisResults &AR, LPMUpdater &U)
Performs Loop Idiom Recognize Pass.