forked from OSchip/llvm-project
268 lines
12 KiB
C++
268 lines
12 KiB
C++
//===-- lib/Semantics/check-omp-structure.h ---------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// OpenMP structure validity check list
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// 1. invalid clauses on directive
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// 2. invalid repeated clauses on directive
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// 3. TODO: invalid nesting of regions
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#ifndef FORTRAN_SEMANTICS_CHECK_OMP_STRUCTURE_H_
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#define FORTRAN_SEMANTICS_CHECK_OMP_STRUCTURE_H_
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#include "flang/Common/enum-set.h"
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#include "flang/Parser/parse-tree.h"
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#include "flang/Semantics/semantics.h"
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namespace Fortran::semantics {
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ENUM_CLASS(OmpDirective, ATOMIC, BARRIER, CANCEL, CANCELLATION_POINT, CRITICAL,
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DECLARE_REDUCTION, DECLARE_SIMD, DECLARE_TARGET, DISTRIBUTE,
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DISTRIBUTE_PARALLEL_DO, DISTRIBUTE_PARALLEL_DO_SIMD, DISTRIBUTE_SIMD, DO,
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DO_SIMD, END_CRITICAL, END_DO, END_DO_SIMD, END_SECTIONS, END_SINGLE,
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END_WORKSHARE, FLUSH, MASTER, ORDERED, PARALLEL, PARALLEL_DO,
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PARALLEL_DO_SIMD, PARALLEL_SECTIONS, PARALLEL_WORKSHARE, SECTION, SECTIONS,
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SIMD, SINGLE, TARGET, TARGET_DATA, TARGET_ENTER_DATA, TARGET_EXIT_DATA,
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TARGET_PARALLEL, TARGET_PARALLEL_DO, TARGET_PARALLEL_DO_SIMD, TARGET_SIMD,
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TARGET_TEAMS, TARGET_TEAMS_DISTRIBUTE, TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO,
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TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD, TARGET_TEAMS_DISTRIBUTE_SIMD,
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TARGET_UPDATE, TASK, TASKGROUP, TASKLOOP, TASKLOOP_SIMD, TASKWAIT,
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TASKYIELD, TEAMS, TEAMS_DISTRIBUTE, TEAMS_DISTRIBUTE_PARALLEL_DO,
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TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD, TEAMS_DISTRIBUTE_SIMD, THREADPRIVATE,
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WORKSHARE)
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using OmpDirectiveSet = common::EnumSet<OmpDirective, OmpDirective_enumSize>;
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ENUM_CLASS(OmpClause, ALIGNED, COLLAPSE, COPYIN, COPYPRIVATE, DEFAULT,
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DEFAULTMAP, DEPEND, DEVICE, DIST_SCHEDULE, FINAL, FIRSTPRIVATE, FROM,
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GRAINSIZE, IF, INBRANCH, IS_DEVICE_PTR, LASTPRIVATE, LINEAR, LINK, MAP,
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MERGEABLE, NOGROUP, NOTINBRANCH, NOWAIT, NUM_TASKS, NUM_TEAMS, NUM_THREADS,
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ORDERED, PRIORITY, PRIVATE, PROC_BIND, REDUCTION, SAFELEN, SCHEDULE, SHARED,
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SIMD, SIMDLEN, THREAD_LIMIT, THREADS, TO, UNIFORM, UNTIED, USE_DEVICE_PTR)
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using OmpClauseSet = common::EnumSet<OmpClause, OmpClause_enumSize>;
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static constexpr OmpDirectiveSet parallelSet{
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OmpDirective::DISTRIBUTE_PARALLEL_DO,
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OmpDirective::DISTRIBUTE_PARALLEL_DO_SIMD, OmpDirective::PARALLEL,
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OmpDirective::PARALLEL_DO, OmpDirective::PARALLEL_DO_SIMD,
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OmpDirective::PARALLEL_SECTIONS, OmpDirective::PARALLEL_WORKSHARE,
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OmpDirective::TARGET_PARALLEL, OmpDirective::TARGET_PARALLEL_DO,
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OmpDirective::TARGET_PARALLEL_DO_SIMD,
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OmpDirective::TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO,
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OmpDirective::TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD,
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OmpDirective::TEAMS_DISTRIBUTE_PARALLEL_DO,
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OmpDirective::TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD};
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static constexpr OmpDirectiveSet doSet{OmpDirective::DISTRIBUTE_PARALLEL_DO,
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OmpDirective::DISTRIBUTE_PARALLEL_DO_SIMD, OmpDirective::PARALLEL_DO,
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OmpDirective::PARALLEL_DO_SIMD, OmpDirective::DO, OmpDirective::DO_SIMD,
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OmpDirective::TARGET_PARALLEL_DO, OmpDirective::TARGET_PARALLEL_DO_SIMD,
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OmpDirective::TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO,
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OmpDirective::TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD,
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OmpDirective::TEAMS_DISTRIBUTE_PARALLEL_DO,
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OmpDirective::TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD};
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static constexpr OmpDirectiveSet doSimdSet{
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OmpDirective::DISTRIBUTE_PARALLEL_DO_SIMD, OmpDirective::PARALLEL_DO_SIMD,
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OmpDirective::DO_SIMD, OmpDirective::TARGET_PARALLEL_DO_SIMD,
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OmpDirective::TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD,
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OmpDirective::TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD};
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static constexpr OmpDirectiveSet taskloopSet{
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OmpDirective::TASKLOOP, OmpDirective::TASKLOOP_SIMD};
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static constexpr OmpDirectiveSet targetSet{OmpDirective::TARGET,
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OmpDirective::TARGET_PARALLEL, OmpDirective::TARGET_PARALLEL_DO,
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OmpDirective::TARGET_PARALLEL_DO_SIMD, OmpDirective::TARGET_SIMD,
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OmpDirective::TARGET_TEAMS, OmpDirective::TARGET_TEAMS_DISTRIBUTE,
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OmpDirective::TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO,
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OmpDirective::TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD,
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OmpDirective::TARGET_TEAMS_DISTRIBUTE_SIMD};
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static constexpr OmpDirectiveSet simdSet{
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OmpDirective::DISTRIBUTE_PARALLEL_DO_SIMD, OmpDirective::DISTRIBUTE_SIMD,
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OmpDirective::PARALLEL_DO_SIMD, OmpDirective::DO_SIMD, OmpDirective::SIMD,
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OmpDirective::TARGET_PARALLEL_DO_SIMD,
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OmpDirective::TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD,
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OmpDirective::TARGET_TEAMS_DISTRIBUTE_SIMD, OmpDirective::TARGET_SIMD,
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OmpDirective::TASKLOOP_SIMD,
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OmpDirective::TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD,
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OmpDirective::TEAMS_DISTRIBUTE_SIMD};
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static constexpr OmpDirectiveSet taskGeneratingSet{
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OmpDirectiveSet{OmpDirective::TASK} | taskloopSet};
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class OmpStructureChecker : public virtual BaseChecker {
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public:
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OmpStructureChecker(SemanticsContext &context) : context_{context} {}
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void Enter(const parser::OpenMPConstruct &);
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void Enter(const parser::OpenMPLoopConstruct &);
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void Leave(const parser::OpenMPLoopConstruct &);
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void Enter(const parser::OmpEndLoopDirective &);
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void Enter(const parser::OpenMPBlockConstruct &);
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void Leave(const parser::OpenMPBlockConstruct &);
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void Enter(const parser::OmpEndBlockDirective &);
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void Enter(const parser::OpenMPSectionsConstruct &);
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void Leave(const parser::OpenMPSectionsConstruct &);
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void Enter(const parser::OmpEndSectionsDirective &);
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void Enter(const parser::OpenMPDeclareSimdConstruct &);
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void Leave(const parser::OpenMPDeclareSimdConstruct &);
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void Enter(const parser::OpenMPDeclareTargetConstruct &);
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void Leave(const parser::OpenMPDeclareTargetConstruct &);
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void Enter(const parser::OpenMPSimpleStandaloneConstruct &);
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void Leave(const parser::OpenMPSimpleStandaloneConstruct &);
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void Enter(const parser::OpenMPFlushConstruct &);
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void Leave(const parser::OpenMPFlushConstruct &);
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void Enter(const parser::OpenMPCancelConstruct &);
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void Leave(const parser::OpenMPCancelConstruct &);
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void Enter(const parser::OpenMPCancellationPointConstruct &);
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void Leave(const parser::OpenMPCancellationPointConstruct &);
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void Leave(const parser::OmpClauseList &);
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void Enter(const parser::OmpClause &);
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void Enter(const parser::OmpNowait &);
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void Enter(const parser::OmpClause::Inbranch &);
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void Enter(const parser::OmpClause::Mergeable &);
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void Enter(const parser::OmpClause::Nogroup &);
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void Enter(const parser::OmpClause::Notinbranch &);
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void Enter(const parser::OmpClause::Untied &);
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void Enter(const parser::OmpClause::Collapse &);
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void Enter(const parser::OmpClause::Copyin &);
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void Enter(const parser::OmpClause::Copyprivate &);
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void Enter(const parser::OmpClause::Device &);
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void Enter(const parser::OmpClause::DistSchedule &);
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void Enter(const parser::OmpClause::Final &);
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void Enter(const parser::OmpClause::Firstprivate &);
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void Enter(const parser::OmpClause::From &);
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void Enter(const parser::OmpClause::Grainsize &);
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void Enter(const parser::OmpClause::Lastprivate &);
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void Enter(const parser::OmpClause::NumTasks &);
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void Enter(const parser::OmpClause::NumTeams &);
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void Enter(const parser::OmpClause::NumThreads &);
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void Enter(const parser::OmpClause::Ordered &);
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void Enter(const parser::OmpClause::Priority &);
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void Enter(const parser::OmpClause::Private &);
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void Enter(const parser::OmpClause::Safelen &);
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void Enter(const parser::OmpClause::Shared &);
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void Enter(const parser::OmpClause::Simdlen &);
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void Enter(const parser::OmpClause::ThreadLimit &);
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void Enter(const parser::OmpClause::To &);
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void Enter(const parser::OmpClause::Link &);
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void Enter(const parser::OmpClause::Uniform &);
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void Enter(const parser::OmpClause::UseDevicePtr &);
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void Enter(const parser::OmpClause::IsDevicePtr &);
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void Enter(const parser::OmpAlignedClause &);
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void Enter(const parser::OmpDefaultClause &);
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void Enter(const parser::OmpDefaultmapClause &);
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void Enter(const parser::OmpDependClause &);
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void Enter(const parser::OmpIfClause &);
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void Enter(const parser::OmpLinearClause &);
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void Enter(const parser::OmpMapClause &);
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void Enter(const parser::OmpProcBindClause &);
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void Enter(const parser::OmpReductionClause &);
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void Enter(const parser::OmpScheduleClause &);
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private:
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struct OmpContext {
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OmpContext(parser::CharBlock source, OmpDirective d)
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: directiveSource{source}, directive{d} {}
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parser::CharBlock directiveSource{nullptr};
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parser::CharBlock clauseSource{nullptr};
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OmpDirective directive;
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OmpClauseSet allowedClauses{};
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OmpClauseSet allowedOnceClauses{};
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OmpClauseSet allowedExclusiveClauses{};
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OmpClauseSet requiredClauses{};
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const parser::OmpClause *clause{nullptr};
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std::multimap<OmpClause, const parser::OmpClause *> clauseInfo;
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};
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// back() is the top of the stack
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OmpContext &GetContext() {
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CHECK(!ompContext_.empty());
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return ompContext_.back();
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}
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// reset source location, check information, and
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// collected information for END directive
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void ResetPartialContext(const parser::CharBlock &source) {
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CHECK(!ompContext_.empty());
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SetContextDirectiveSource(source);
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GetContext().allowedClauses = {};
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GetContext().allowedOnceClauses = {};
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GetContext().allowedExclusiveClauses = {};
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GetContext().requiredClauses = {};
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GetContext().clauseInfo = {};
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}
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void SetContextDirectiveSource(const parser::CharBlock &directive) {
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GetContext().directiveSource = directive;
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}
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void SetContextClause(const parser::OmpClause &clause) {
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GetContext().clauseSource = clause.source;
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GetContext().clause = &clause;
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}
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void SetContextDirectiveEnum(OmpDirective dir) {
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GetContext().directive = dir;
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}
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void SetContextAllowed(const OmpClauseSet &allowed) {
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GetContext().allowedClauses = allowed;
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}
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void SetContextAllowedOnce(const OmpClauseSet &allowedOnce) {
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GetContext().allowedOnceClauses = allowedOnce;
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}
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void SetContextAllowedExclusive(const OmpClauseSet &allowedExclusive) {
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GetContext().allowedExclusiveClauses = allowedExclusive;
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}
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void SetContextRequired(const OmpClauseSet &required) {
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GetContext().requiredClauses = required;
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}
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void SetContextClauseInfo(OmpClause type) {
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GetContext().clauseInfo.emplace(type, GetContext().clause);
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}
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const parser::OmpClause *FindClause(OmpClause type) {
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auto it{GetContext().clauseInfo.find(type)};
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if (it != GetContext().clauseInfo.end()) {
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return it->second;
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}
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return nullptr;
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}
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void PushContext(const parser::CharBlock &source, OmpDirective dir) {
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ompContext_.emplace_back(source, dir);
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}
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void RequiresConstantPositiveParameter(
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const OmpClause &clause, const parser::ScalarIntConstantExpr &i);
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void RequiresPositiveParameter(
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const OmpClause &clause, const parser::ScalarIntExpr &i);
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bool CurrentDirectiveIsNested() { return ompContext_.size() > 0; };
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bool HasInvalidWorksharingNesting(
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const parser::CharBlock &, const OmpDirectiveSet &);
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void CheckAllowed(OmpClause);
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void CheckRequired(OmpClause);
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std::string ContextDirectiveAsFortran();
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void SayNotMatching(const parser::CharBlock &, const parser::CharBlock &);
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template <typename A, typename B, typename C>
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const A &CheckMatching(const B &beginDir, const C &endDir) {
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const A &begin{std::get<A>(beginDir.t)};
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const A &end{std::get<A>(endDir.t)};
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if (begin.v != end.v) {
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SayNotMatching(begin.source, end.source);
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}
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return begin;
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}
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// specific clause related
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bool ScheduleModifierHasType(const parser::OmpScheduleClause &,
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const parser::OmpScheduleModifierType::ModType &);
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SemanticsContext &context_;
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std::vector<OmpContext> ompContext_; // used as a stack
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};
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} // namespace Fortran::semantics
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#endif // FORTRAN_SEMANTICS_CHECK_OMP_STRUCTURE_H_
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