1 | //===- Scalarizer.h --- Scalarize vector operations -----------------------===// |
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 | /// \file |
10 | /// This pass converts vector operations into scalar operations (or, optionally, |
11 | /// operations on smaller vector widths), in order to expose optimization |
12 | /// opportunities on the individual scalar operations. |
13 | /// It is mainly intended for targets that do not have vector units, but it |
14 | /// may also be useful for revectorizing code to different vector widths. |
15 | // |
16 | //===----------------------------------------------------------------------===// |
17 | |
18 | #ifndef LLVM_TRANSFORMS_SCALAR_SCALARIZER_H |
19 | #define LLVM_TRANSFORMS_SCALAR_SCALARIZER_H |
20 | |
21 | #include "llvm/IR/PassManager.h" |
22 | #include <optional> |
23 | |
24 | namespace llvm { |
25 | |
26 | class Function; |
27 | |
28 | struct ScalarizerPassOptions { |
29 | // These options correspond 1:1 to cl::opt options defined in |
30 | // Scalarizer.cpp. When the cl::opt are specified, they take precedence. |
31 | // When the cl::opt are not specified, the present optional values allow to |
32 | // override the cl::opt's default values. |
33 | std::optional<bool> ; |
34 | std::optional<bool> ScalarizeLoadStore; |
35 | std::optional<unsigned> ScalarizeMinBits; |
36 | }; |
37 | |
38 | class ScalarizerPass : public PassInfoMixin<ScalarizerPass> { |
39 | ScalarizerPassOptions Options; |
40 | |
41 | public: |
42 | ScalarizerPass() = default; |
43 | ScalarizerPass(const ScalarizerPassOptions &Options) : Options(Options) {} |
44 | |
45 | PreservedAnalyses run(Function &F, FunctionAnalysisManager &AM); |
46 | |
47 | void (bool Value) { |
48 | Options.ScalarizeVariableInsertExtract = Value; |
49 | } |
50 | void setScalarizeLoadStore(bool Value) { Options.ScalarizeLoadStore = Value; } |
51 | void setScalarizeMinBits(unsigned Value) { Options.ScalarizeMinBits = Value; } |
52 | }; |
53 | } |
54 | |
55 | #endif /* LLVM_TRANSFORMS_SCALAR_SCALARIZER_H */ |
56 | |