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[flang][OpenMP] General utility to get directive id from AST node #150121
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,175 @@ | ||
| //===-- flang/Parser/openmp-utils.h ---------------------------------------===// | ||
| // | ||
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. | ||
| // See https://llvm.org/LICENSE.txt for license information. | ||
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception | ||
| // | ||
| //===----------------------------------------------------------------------===// | ||
| // | ||
| // Common OpenMP utilities. | ||
| // | ||
| //===----------------------------------------------------------------------===// | ||
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| #ifndef FORTRAN_PARSER_OPENMP_UTILS_H | ||
| #define FORTRAN_PARSER_OPENMP_UTILS_H | ||
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| #include "flang/Common/indirection.h" | ||
| #include "flang/Parser/parse-tree.h" | ||
| #include "llvm/Frontend/OpenMP/OMP.h" | ||
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| #include <cassert> | ||
| #include <tuple> | ||
| #include <type_traits> | ||
| #include <utility> | ||
| #include <variant> | ||
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| namespace Fortran::parser::omp { | ||
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| namespace detail { | ||
| using D = llvm::omp::Directive; | ||
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| template <typename Construct> // | ||
| struct ConstructId { | ||
| static constexpr llvm::omp::Directive id{D::OMPD_unknown}; | ||
| }; | ||
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| #define MAKE_CONSTR_ID(Construct, Id) \ | ||
| template <> struct ConstructId<Construct> { \ | ||
| static constexpr llvm::omp::Directive id{Id}; \ | ||
| } | ||
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| MAKE_CONSTR_ID(OmpAssumeDirective, D::OMPD_assume); | ||
| MAKE_CONSTR_ID(OmpCriticalDirective, D::OMPD_critical); | ||
| MAKE_CONSTR_ID(OmpDeclareVariantDirective, D::OMPD_declare_variant); | ||
| MAKE_CONSTR_ID(OmpErrorDirective, D::OMPD_error); | ||
| MAKE_CONSTR_ID(OmpMetadirectiveDirective, D::OMPD_metadirective); | ||
| MAKE_CONSTR_ID(OpenMPDeclarativeAllocate, D::OMPD_allocate); | ||
| MAKE_CONSTR_ID(OpenMPDeclarativeAssumes, D::OMPD_assumes); | ||
| MAKE_CONSTR_ID(OpenMPDeclareMapperConstruct, D::OMPD_declare_mapper); | ||
| MAKE_CONSTR_ID(OpenMPDeclareReductionConstruct, D::OMPD_declare_reduction); | ||
| MAKE_CONSTR_ID(OpenMPDeclareSimdConstruct, D::OMPD_declare_simd); | ||
| MAKE_CONSTR_ID(OpenMPDeclareTargetConstruct, D::OMPD_declare_target); | ||
| MAKE_CONSTR_ID(OpenMPExecutableAllocate, D::OMPD_allocate); | ||
| MAKE_CONSTR_ID(OpenMPRequiresConstruct, D::OMPD_requires); | ||
| MAKE_CONSTR_ID(OpenMPThreadprivate, D::OMPD_threadprivate); | ||
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| #undef MAKE_CONSTR_ID | ||
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| struct DirectiveNameScope { | ||
| // Helper types to make overloaded function signatures different. | ||
| struct TagA {}; | ||
| struct TagB {}; | ||
| struct TagC {}; | ||
| struct TagD {}; | ||
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| static OmpDirectiveName MakeName(CharBlock source = {}, | ||
| llvm::omp::Directive id = llvm::omp::Directive::OMPD_unknown) { | ||
| OmpDirectiveName name; | ||
| name.source = source; | ||
| name.v = id; | ||
| return name; | ||
| } | ||
|
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| static OmpDirectiveName GetOmpDirectiveName(const OmpNothingDirective &x) { | ||
| return MakeName(x.source, llvm::omp::Directive::OMPD_nothing); | ||
| } | ||
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| static OmpDirectiveName GetOmpDirectiveName(const OmpBeginBlockDirective &x) { | ||
| auto &dir{std::get<OmpBlockDirective>(x.t)}; | ||
| return MakeName(dir.source, dir.v); | ||
| } | ||
|
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| static OmpDirectiveName GetOmpDirectiveName(const OmpBeginLoopDirective &x) { | ||
| auto &dir{std::get<OmpLoopDirective>(x.t)}; | ||
| return MakeName(dir.source, dir.v); | ||
| } | ||
|
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| static OmpDirectiveName GetOmpDirectiveName( | ||
| const OmpBeginSectionsDirective &x) { | ||
| auto &dir{std::get<OmpSectionsDirective>(x.t)}; | ||
| return MakeName(dir.source, dir.v); | ||
| } | ||
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| template <typename T, typename = std::enable_if_t<WrapperTrait<T>>> | ||
| static OmpDirectiveName GetOmpDirectiveName(const T &x, TagA = {}) { | ||
| if constexpr (std::is_same_v<T, OpenMPCancelConstruct> || | ||
| std::is_same_v<T, OpenMPCancellationPointConstruct> || | ||
| std::is_same_v<T, OpenMPDepobjConstruct> || | ||
| std::is_same_v<T, OpenMPFlushConstruct> || | ||
| std::is_same_v<T, OpenMPInteropConstruct> || | ||
| std::is_same_v<T, OpenMPSimpleStandaloneConstruct>) { | ||
| return x.v.DirName(); | ||
| } else { | ||
| return GetOmpDirectiveName(x.v); | ||
| } | ||
| } | ||
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| template <typename T, typename = std::enable_if_t<TupleTrait<T>>> | ||
| static OmpDirectiveName GetOmpDirectiveName(const T &x, TagB = {}) { | ||
| if constexpr (std::is_same_v<T, OpenMPAllocatorsConstruct> || | ||
| std::is_same_v<T, OpenMPAtomicConstruct> || | ||
| std::is_same_v<T, OpenMPDispatchConstruct>) { | ||
| return std::get<OmpDirectiveSpecification>(x.t).DirName(); | ||
| } else if constexpr (std::is_same_v<T, OmpAssumeDirective> || | ||
| std::is_same_v<T, OmpCriticalDirective> || | ||
| std::is_same_v<T, OmpDeclareVariantDirective> || | ||
| std::is_same_v<T, OmpErrorDirective> || | ||
| std::is_same_v<T, OmpMetadirectiveDirective> || | ||
| std::is_same_v<T, OpenMPDeclarativeAllocate> || | ||
| std::is_same_v<T, OpenMPDeclarativeAssumes> || | ||
| std::is_same_v<T, OpenMPDeclareMapperConstruct> || | ||
| std::is_same_v<T, OpenMPDeclareReductionConstruct> || | ||
| std::is_same_v<T, OpenMPDeclareSimdConstruct> || | ||
| std::is_same_v<T, OpenMPDeclareTargetConstruct> || | ||
| std::is_same_v<T, OpenMPExecutableAllocate> || | ||
| std::is_same_v<T, OpenMPRequiresConstruct> || | ||
| std::is_same_v<T, OpenMPThreadprivate>) { | ||
| return MakeName(std::get<Verbatim>(x.t).source, ConstructId<T>::id); | ||
| } else { | ||
| return GetFromTuple( | ||
| x.t, std::make_index_sequence<std::tuple_size_v<decltype(x.t)>>{}); | ||
| } | ||
| } | ||
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| template <typename T, typename = std::enable_if_t<UnionTrait<T>>> | ||
| static OmpDirectiveName GetOmpDirectiveName(const T &x, TagC = {}) { | ||
| return common::visit([](auto &&s) { return GetOmpDirectiveName(s); }, x.u); | ||
| } | ||
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| template <typename... Ts, size_t... Is> | ||
| static OmpDirectiveName GetFromTuple( | ||
| const std::tuple<Ts...> &t, std::index_sequence<Is...>) { | ||
| OmpDirectiveName name = MakeName(); | ||
| auto accumulate = [&](const OmpDirectiveName &n) { | ||
| if (name.v == llvm::omp::Directive::OMPD_unknown) { | ||
| name = n; | ||
| } else { | ||
| assert( | ||
| n.v == llvm::omp::Directive::OMPD_unknown && "Conflicting names"); | ||
| } | ||
| }; | ||
| (accumulate(GetOmpDirectiveName(std::get<Is>(t))), ...); | ||
| return name; | ||
| } | ||
|
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| template <typename T> | ||
| static OmpDirectiveName GetOmpDirectiveName(const common::Indirection<T> &x) { | ||
| return GetOmpDirectiveName(x.value()); | ||
| } | ||
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| template <typename T, | ||
| typename = std::enable_if_t<!WrapperTrait<T> && !TupleTrait<T> && | ||
| !UnionTrait<T>>> | ||
| static OmpDirectiveName GetOmpDirectiveName(const T &x, TagD = {}) { | ||
| return MakeName(); | ||
| } | ||
| }; | ||
| } // namespace detail | ||
|
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| template <typename T> OmpDirectiveName GetOmpDirectiveName(const T &x) { | ||
| return detail::DirectiveNameScope::GetOmpDirectiveName(x); | ||
| } | ||
|
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| } // namespace Fortran::parser::omp | ||
|
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| #endif // FORTRAN_PARSER_OPENMP_UTILS_H |
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