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| 1 | //===-- Lower/Bridge.h -- main interface to lowering ------------*- 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 | // Coding style: https://mlir.llvm.org/getting_started/DeveloperGuide/ |
| 10 | // |
| 11 | //===----------------------------------------------------------------------===// |
| 12 | |
| 13 | #ifndef FORTRAN_LOWER_BRIDGE_H |
| 14 | #define FORTRAN_LOWER_BRIDGE_H |
| 15 | |
| 16 | #include "flang/Common/Fortran.h" |
| 17 | #include "flang/Lower/AbstractConverter.h" |
| 18 | #include "flang/Lower/EnvironmentDefault.h" |
| 19 | #include "flang/Lower/LoweringOptions.h" |
| 20 | #include "flang/Lower/StatementContext.h" |
| 21 | #include "flang/Optimizer/Builder/FIRBuilder.h" |
| 22 | #include "flang/Optimizer/Dialect/Support/KindMapping.h" |
| 23 | #include "mlir/IR/BuiltinOps.h" |
| 24 | #include <set> |
| 25 | |
| 26 | namespace llvm { |
| 27 | class TargetMachine; |
| 28 | } // namespace llvm |
| 29 | |
| 30 | namespace Fortran { |
| 31 | namespace common { |
| 32 | class IntrinsicTypeDefaultKinds; |
| 33 | } // namespace common |
| 34 | namespace evaluate { |
| 35 | class IntrinsicProcTable; |
| 36 | class TargetCharacteristics; |
| 37 | } // namespace evaluate |
| 38 | namespace parser { |
| 39 | class AllCookedSources; |
| 40 | struct Program; |
| 41 | } // namespace parser |
| 42 | namespace semantics { |
| 43 | class SemanticsContext; |
| 44 | } // namespace semantics |
| 45 | |
| 46 | namespace lower { |
| 47 | |
| 48 | //===----------------------------------------------------------------------===// |
| 49 | // Lowering bridge |
| 50 | //===----------------------------------------------------------------------===// |
| 51 | |
| 52 | /// The lowering bridge converts the front-end parse trees and semantics |
| 53 | /// checking residual to MLIR (FIR dialect) code. |
| 54 | class LoweringBridge { |
| 55 | public: |
| 56 | /// Create a lowering bridge instance. |
| 57 | static LoweringBridge |
| 58 | create(mlir::MLIRContext &ctx, |
| 59 | Fortran::semantics::SemanticsContext &semanticsContext, |
| 60 | const Fortran::common::IntrinsicTypeDefaultKinds &defaultKinds, |
| 61 | const Fortran::evaluate::IntrinsicProcTable &intrinsics, |
| 62 | const Fortran::evaluate::TargetCharacteristics &targetCharacteristics, |
| 63 | const Fortran::parser::AllCookedSources &allCooked, |
| 64 | llvm::StringRef triple, fir::KindMapping &kindMap, |
| 65 | const Fortran::lower::LoweringOptions &loweringOptions, |
| 66 | const std::vector<Fortran::lower::EnvironmentDefault> &envDefaults, |
| 67 | const Fortran::common::LanguageFeatureControl &languageFeatures, |
| 68 | const llvm::TargetMachine &targetMachine) { |
| 69 | return LoweringBridge(ctx, semanticsContext, defaultKinds, intrinsics, |
| 70 | targetCharacteristics, allCooked, triple, kindMap, |
| 71 | loweringOptions, envDefaults, languageFeatures, |
| 72 | targetMachine); |
| 73 | } |
| 74 | |
| 75 | //===--------------------------------------------------------------------===// |
| 76 | // Getters |
| 77 | //===--------------------------------------------------------------------===// |
| 78 | |
| 79 | mlir::MLIRContext &getMLIRContext() { return context; } |
| 80 | |
| 81 | /// Get the ModuleOp. It can never be null, which is asserted in the ctor. |
| 82 | mlir::ModuleOp &getModule() { return *module.get(); } |
| 83 | |
| 84 | const Fortran::common::IntrinsicTypeDefaultKinds &getDefaultKinds() const { |
| 85 | return defaultKinds; |
| 86 | } |
| 87 | const Fortran::evaluate::IntrinsicProcTable &getIntrinsicTable() const { |
| 88 | return intrinsics; |
| 89 | } |
| 90 | const Fortran::evaluate::TargetCharacteristics & |
| 91 | getTargetCharacteristics() const { |
| 92 | return targetCharacteristics; |
| 93 | } |
| 94 | const Fortran::parser::AllCookedSources *getCookedSource() const { |
| 95 | return cooked; |
| 96 | } |
| 97 | |
| 98 | /// Get the kind map. |
| 99 | const fir::KindMapping &getKindMap() const { return kindMap; } |
| 100 | |
| 101 | const Fortran::lower::LoweringOptions &getLoweringOptions() const { |
| 102 | return loweringOptions; |
| 103 | } |
| 104 | |
| 105 | const std::vector<Fortran::lower::EnvironmentDefault> & |
| 106 | getEnvironmentDefaults() const { |
| 107 | return envDefaults; |
| 108 | } |
| 109 | |
| 110 | const Fortran::common::LanguageFeatureControl &getLanguageFeatures() const { |
| 111 | return languageFeatures; |
| 112 | } |
| 113 | |
| 114 | /// Create a folding context. Careful: this is very expensive. |
| 115 | Fortran::evaluate::FoldingContext createFoldingContext(); |
| 116 | |
| 117 | Fortran::semantics::SemanticsContext &getSemanticsContext() const { |
| 118 | return semanticsContext; |
| 119 | } |
| 120 | |
| 121 | Fortran::lower::StatementContext &fctCtx() { return functionContext; } |
| 122 | |
| 123 | Fortran::lower::StatementContext &openAccCtx() { return openAccContext; } |
| 124 | |
| 125 | bool validModule() { return getModule(); } |
| 126 | |
| 127 | //===--------------------------------------------------------------------===// |
| 128 | // Perform the creation of an mlir::ModuleOp |
| 129 | //===--------------------------------------------------------------------===// |
| 130 | |
| 131 | /// Read in an MLIR input file rather than lowering Fortran sources. |
| 132 | /// This is intended to be used for testing. |
| 133 | void parseSourceFile(llvm::SourceMgr &); |
| 134 | |
| 135 | /// Cross the bridge from the Fortran parse-tree, etc. to MLIR dialects |
| 136 | void lower(const Fortran::parser::Program &program, |
| 137 | const Fortran::semantics::SemanticsContext &semanticsContext); |
| 138 | |
| 139 | private: |
| 140 | explicit LoweringBridge( |
| 141 | mlir::MLIRContext &ctx, |
| 142 | Fortran::semantics::SemanticsContext &semanticsContext, |
| 143 | const Fortran::common::IntrinsicTypeDefaultKinds &defaultKinds, |
| 144 | const Fortran::evaluate::IntrinsicProcTable &intrinsics, |
| 145 | const Fortran::evaluate::TargetCharacteristics &targetCharacteristics, |
| 146 | const Fortran::parser::AllCookedSources &cooked, llvm::StringRef triple, |
| 147 | fir::KindMapping &kindMap, |
| 148 | const Fortran::lower::LoweringOptions &loweringOptions, |
| 149 | const std::vector<Fortran::lower::EnvironmentDefault> &envDefaults, |
| 150 | const Fortran::common::LanguageFeatureControl &languageFeatures, |
| 151 | const llvm::TargetMachine &targetMachine); |
| 152 | LoweringBridge() = delete; |
| 153 | LoweringBridge(const LoweringBridge &) = delete; |
| 154 | |
| 155 | Fortran::semantics::SemanticsContext &semanticsContext; |
| 156 | Fortran::lower::StatementContext functionContext; |
| 157 | Fortran::lower::StatementContext openAccContext; |
| 158 | const Fortran::common::IntrinsicTypeDefaultKinds &defaultKinds; |
| 159 | const Fortran::evaluate::IntrinsicProcTable &intrinsics; |
| 160 | const Fortran::evaluate::TargetCharacteristics &targetCharacteristics; |
| 161 | const Fortran::parser::AllCookedSources *cooked; |
| 162 | mlir::MLIRContext &context; |
| 163 | std::unique_ptr<mlir::ModuleOp> module; |
| 164 | fir::KindMapping &kindMap; |
| 165 | const Fortran::lower::LoweringOptions &loweringOptions; |
| 166 | const std::vector<Fortran::lower::EnvironmentDefault> &envDefaults; |
| 167 | const Fortran::common::LanguageFeatureControl &languageFeatures; |
| 168 | std::set<std::string> tempNames; |
| 169 | }; |
| 170 | |
| 171 | } // namespace lower |
| 172 | } // namespace Fortran |
| 173 | |
| 174 | #endif // FORTRAN_LOWER_BRIDGE_H |
| 175 |
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