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, in order
11 /// to expose optimization opportunities on the individual scalar operations.
12 /// It is mainly intended for targets that do not have vector units, but it
13 /// may also be useful for revectorizing code to different vector widths.
14 //
15 //===----------------------------------------------------------------------===//
16 
17 #ifndef LLVM_TRANSFORMS_SCALAR_SCALARIZER_H
18 #define LLVM_TRANSFORMS_SCALAR_SCALARIZER_H
19 
20 #include "llvm/ADT/Optional.h"
21 #include "llvm/IR/PassManager.h"
22 
23 namespace llvm {
24 
25 class Function;
26 class FunctionPass;
27 
28 struct ScalarizerPassOptions {
29   // These optional booleans correspond 1:1 to cl::opt<bool> 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 booleans allow to
32   // override the cl::opt's default values.
33   llvm::Optional<bool> ScalarizeVariableInsertExtract;
34   llvm::Optional<bool> ScalarizeLoadStore;
35 };
36 
37 class ScalarizerPass : public PassInfoMixin<ScalarizerPass> {
38   ScalarizerPassOptions Options;
39 
40 public:
41   PreservedAnalyses run(Function &F, FunctionAnalysisManager &AM);
42 
43   void setScalarizeVariableInsertExtract(bool Value) {
44     Options.ScalarizeVariableInsertExtract = Value;
45   }
46   void setScalarizeLoadStore(bool Value) { Options.ScalarizeLoadStore = Value; }
47 };
48 
49 /// Create a legacy pass manager instance of the Scalarizer pass
50 FunctionPass *createScalarizerPass();
51 
52 }
53 
54 #endif /* LLVM_TRANSFORMS_SCALAR_SCALARIZER_H */
55