10b57cec5SDimitry Andric //===- Scalarizer.h --- Scalarize vector operations -----------------------===// 20b57cec5SDimitry Andric // 30b57cec5SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 40b57cec5SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 50b57cec5SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 60b57cec5SDimitry Andric // 70b57cec5SDimitry Andric //===----------------------------------------------------------------------===// 80b57cec5SDimitry Andric // 90b57cec5SDimitry Andric /// \file 10*06c3fb27SDimitry Andric /// This pass converts vector operations into scalar operations (or, optionally, 11*06c3fb27SDimitry Andric /// operations on smaller vector widths), in order to expose optimization 12*06c3fb27SDimitry Andric /// opportunities on the individual scalar operations. 130b57cec5SDimitry Andric /// It is mainly intended for targets that do not have vector units, but it 140b57cec5SDimitry Andric /// may also be useful for revectorizing code to different vector widths. 150b57cec5SDimitry Andric // 160b57cec5SDimitry Andric //===----------------------------------------------------------------------===// 170b57cec5SDimitry Andric 180b57cec5SDimitry Andric #ifndef LLVM_TRANSFORMS_SCALAR_SCALARIZER_H 190b57cec5SDimitry Andric #define LLVM_TRANSFORMS_SCALAR_SCALARIZER_H 200b57cec5SDimitry Andric 210b57cec5SDimitry Andric #include "llvm/IR/PassManager.h" 22bdd1243dSDimitry Andric #include <optional> 230b57cec5SDimitry Andric 240b57cec5SDimitry Andric namespace llvm { 250b57cec5SDimitry Andric 2681ad6265SDimitry Andric class Function; 2781ad6265SDimitry Andric 2881ad6265SDimitry Andric struct ScalarizerPassOptions { 29*06c3fb27SDimitry Andric // These options correspond 1:1 to cl::opt options defined in 3081ad6265SDimitry Andric // Scalarizer.cpp. When the cl::opt are specified, they take precedence. 31*06c3fb27SDimitry Andric // When the cl::opt are not specified, the present optional values allow to 3281ad6265SDimitry Andric // override the cl::opt's default values. 33bdd1243dSDimitry Andric std::optional<bool> ScalarizeVariableInsertExtract; 34bdd1243dSDimitry Andric std::optional<bool> ScalarizeLoadStore; 35*06c3fb27SDimitry Andric std::optional<unsigned> ScalarizeMinBits; 3681ad6265SDimitry Andric }; 3781ad6265SDimitry Andric 380b57cec5SDimitry Andric class ScalarizerPass : public PassInfoMixin<ScalarizerPass> { 3981ad6265SDimitry Andric ScalarizerPassOptions Options; 4081ad6265SDimitry Andric 410b57cec5SDimitry Andric public: 42*06c3fb27SDimitry Andric ScalarizerPass() = default; ScalarizerPass(const ScalarizerPassOptions & Options)43*06c3fb27SDimitry Andric ScalarizerPass(const ScalarizerPassOptions &Options) : Options(Options) {} 44*06c3fb27SDimitry Andric 450b57cec5SDimitry Andric PreservedAnalyses run(Function &F, FunctionAnalysisManager &AM); 4681ad6265SDimitry Andric setScalarizeVariableInsertExtract(bool Value)4781ad6265SDimitry Andric void setScalarizeVariableInsertExtract(bool Value) { 4881ad6265SDimitry Andric Options.ScalarizeVariableInsertExtract = Value; 4981ad6265SDimitry Andric } setScalarizeLoadStore(bool Value)5081ad6265SDimitry Andric void setScalarizeLoadStore(bool Value) { Options.ScalarizeLoadStore = Value; } setScalarizeMinBits(unsigned Value)51*06c3fb27SDimitry Andric void setScalarizeMinBits(unsigned Value) { Options.ScalarizeMinBits = Value; } 520b57cec5SDimitry Andric }; 530b57cec5SDimitry Andric } 540b57cec5SDimitry Andric 550b57cec5SDimitry Andric #endif /* LLVM_TRANSFORMS_SCALAR_SCALARIZER_H */ 56