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 | /// Options to disable Loop Idiom Recognize, which can be shared with other |
27 | /// passes. |
28 | struct DisableLIRP { |
29 | /// When true, the entire pass is disabled. |
30 | static bool All; |
31 | |
32 | /// When true, Memset is disabled. |
33 | static bool Memset; |
34 | |
35 | /// When true, Memcpy is disabled. |
36 | static bool Memcpy; |
37 | }; |
38 | |
39 | /// Performs Loop Idiom Recognize Pass. |
40 | class LoopIdiomRecognizePass : public PassInfoMixin<LoopIdiomRecognizePass> { |
41 | public: |
42 | PreservedAnalyses run(Loop &L, LoopAnalysisManager &AM, |
43 | LoopStandardAnalysisResults &AR, LPMUpdater &U); |
44 | }; |
45 | |
46 | } // end namespace llvm |
47 | |
48 | #endif // LLVM_TRANSFORMS_SCALAR_LOOPIDIOMRECOGNIZE_H |
49 | |