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
24namespace llvm {
25
26class Function;
27
28struct 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> ScalarizeVariableInsertExtract;
34 std::optional<bool> ScalarizeLoadStore;
35 std::optional<unsigned> ScalarizeMinBits;
36};
37
38class ScalarizerPass : public PassInfoMixin<ScalarizerPass> {
39 ScalarizerPassOptions Options;
40
41public:
42 ScalarizerPass() = default;
43 ScalarizerPass(const ScalarizerPassOptions &Options) : Options(Options) {}
44
45 PreservedAnalyses run(Function &F, FunctionAnalysisManager &AM);
46
47 void setScalarizeVariableInsertExtract(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

source code of llvm/include/llvm/Transforms/Scalar/Scalarizer.h