llvm-project/flang/lib/Parser/openmp-parsers.cpp
sameeran joshi d95d3d2a42 [Flang][OpenMP] Rework parser changes for OpenMP atomic construct.
`OmpStructureChecker` is supposed to work only with `parser::OmpClause`
after tablegen changes for OpenMP and OpenACC were introduced.
Hence `OmpMemoryOrderClause`, `OmpAtomicMemoryOrderClause` and similar ones were failing
to catch semantic errors, inspite of having code for semantic checks.
This patch tries to change parser for `OmpMemoryOrderClause` and similar dependent ones
and use `OmpClauseList` which resides/comes from common tablegen for OpenMP/OpenACC eventually using `parser::OmpClause`.

This patch also tries to :
1. Change `OmpCriticalDirective` in `openmp-parsers.cpp` to support `OmpClauseList`.
2. Check-flang regresses when changes were introduced due to missing semantic checks in OmpCritical, patch implements them at the minimal level to pass the regression.
3. Change tablegen to support Hint clause.
4. Adds missing source locations `CharBlock Source` in each atomic construct.
5. Remove dead code realted to `memory-order-clauses` after moving to `OmpClauseList`.

Reviewed By: kiranchandramohan

Differential Revision: https://reviews.llvm.org/D88965
2020-10-14 14:19:49 +05:30

526 lines
25 KiB
C++

//===-- lib/Parser/openmp-parsers.cpp -------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
// Top-level grammar specification for OpenMP.
// See OpenMP-4.5-grammar.txt for documentation.
#include "basic-parsers.h"
#include "expr-parsers.h"
#include "misc-parsers.h"
#include "stmt-parser.h"
#include "token-parsers.h"
#include "type-parser-implementation.h"
#include "flang/Parser/parse-tree.h"
// OpenMP Directives and Clauses
namespace Fortran::parser {
constexpr auto startOmpLine = skipStuffBeforeStatement >> "!$OMP "_sptok;
constexpr auto endOmpLine = space >> endOfLine;
// OpenMP Clauses
// 2.15.3.1 DEFAULT (PRIVATE | FIRSTPRIVATE | SHARED | NONE)
TYPE_PARSER(construct<OmpDefaultClause>(
"PRIVATE" >> pure(OmpDefaultClause::Type::Private) ||
"FIRSTPRIVATE" >> pure(OmpDefaultClause::Type::Firstprivate) ||
"SHARED" >> pure(OmpDefaultClause::Type::Shared) ||
"NONE" >> pure(OmpDefaultClause::Type::None)))
// 2.5 PROC_BIND (MASTER | CLOSE | SPREAD)
TYPE_PARSER(construct<OmpProcBindClause>(
"CLOSE" >> pure(OmpProcBindClause::Type::Close) ||
"MASTER" >> pure(OmpProcBindClause::Type::Master) ||
"SPREAD" >> pure(OmpProcBindClause::Type::Spread)))
// 2.15.5.1 MAP ([ [ALWAYS[,]] map-type : ] variable-name-list)
// map-type -> TO | FROM | TOFROM | ALLOC | RELEASE | DELETE
TYPE_PARSER(construct<OmpMapType>(
maybe("ALWAYS" >> construct<OmpMapType::Always>() / maybe(","_tok)),
("TO"_id >> pure(OmpMapType::Type::To) ||
"FROM" >> pure(OmpMapType::Type::From) ||
"TOFROM" >> pure(OmpMapType::Type::Tofrom) ||
"ALLOC" >> pure(OmpMapType::Type::Alloc) ||
"RELEASE" >> pure(OmpMapType::Type::Release) ||
"DELETE" >> pure(OmpMapType::Type::Delete)) /
":"))
TYPE_PARSER(construct<OmpMapClause>(
maybe(Parser<OmpMapType>{}), Parser<OmpObjectList>{}))
// 2.15.5.2 defaultmap -> DEFAULTMAP (TOFROM:SCALAR)
TYPE_PARSER(construct<OmpDefaultmapClause>(
construct<OmpDefaultmapClause::ImplicitBehavior>(
"TOFROM" >> pure(OmpDefaultmapClause::ImplicitBehavior::Tofrom)),
maybe(":" >> construct<OmpDefaultmapClause::VariableCategory>("SCALAR" >>
pure(OmpDefaultmapClause::VariableCategory::Scalar)))))
// 2.7.1 SCHEDULE ([modifier1 [, modifier2]:]kind[, chunk_size])
// Modifier -> MONITONIC | NONMONOTONIC | SIMD
// kind -> STATIC | DYNAMIC | GUIDED | AUTO | RUNTIME
// chunk_size -> ScalarIntExpr
TYPE_PARSER(construct<OmpScheduleModifierType>(
"MONOTONIC" >> pure(OmpScheduleModifierType::ModType::Monotonic) ||
"NONMONOTONIC" >> pure(OmpScheduleModifierType::ModType::Nonmonotonic) ||
"SIMD" >> pure(OmpScheduleModifierType::ModType::Simd)))
TYPE_PARSER(construct<OmpScheduleModifier>(Parser<OmpScheduleModifierType>{},
maybe("," >> Parser<OmpScheduleModifierType>{}) / ":"))
TYPE_PARSER(construct<OmpScheduleClause>(maybe(Parser<OmpScheduleModifier>{}),
"STATIC" >> pure(OmpScheduleClause::ScheduleType::Static) ||
"DYNAMIC" >> pure(OmpScheduleClause::ScheduleType::Dynamic) ||
"GUIDED" >> pure(OmpScheduleClause::ScheduleType::Guided) ||
"AUTO" >> pure(OmpScheduleClause::ScheduleType::Auto) ||
"RUNTIME" >> pure(OmpScheduleClause::ScheduleType::Runtime),
maybe("," >> scalarIntExpr)))
// 2.12 IF (directive-name-modifier: scalar-logical-expr)
TYPE_PARSER(construct<OmpIfClause>(
maybe(
("PARALLEL" >> pure(OmpIfClause::DirectiveNameModifier::Parallel) ||
"TARGET ENTER DATA" >>
pure(OmpIfClause::DirectiveNameModifier::TargetEnterData) ||
"TARGET EXIT DATA" >>
pure(OmpIfClause::DirectiveNameModifier::TargetExitData) ||
"TARGET DATA" >>
pure(OmpIfClause::DirectiveNameModifier::TargetData) ||
"TARGET UPDATE" >>
pure(OmpIfClause::DirectiveNameModifier::TargetUpdate) ||
"TARGET" >> pure(OmpIfClause::DirectiveNameModifier::Target) ||
"TASK"_id >> pure(OmpIfClause::DirectiveNameModifier::Task) ||
"TASKLOOP" >> pure(OmpIfClause::DirectiveNameModifier::Taskloop)) /
":"),
scalarLogicalExpr))
// 2.15.3.6 REDUCTION (reduction-identifier: variable-name-list)
TYPE_PARSER(construct<OmpReductionOperator>(Parser<DefinedOperator>{}) ||
construct<OmpReductionOperator>(Parser<ProcedureDesignator>{}))
TYPE_PARSER(construct<OmpReductionClause>(
Parser<OmpReductionOperator>{} / ":", nonemptyList(designator)))
// OMP 5.0 2.11.4 ALLOCATE ([allocator:] variable-name-list)
TYPE_PARSER(construct<OmpAllocateClause>(
maybe(construct<OmpAllocateClause::Allocator>(scalarIntExpr) / ":"),
Parser<OmpObjectList>{}))
// 2.13.9 DEPEND (SOURCE | SINK : vec | (IN | OUT | INOUT) : list
TYPE_PARSER(construct<OmpDependSinkVecLength>(
Parser<DefinedOperator>{}, scalarIntConstantExpr))
TYPE_PARSER(
construct<OmpDependSinkVec>(name, maybe(Parser<OmpDependSinkVecLength>{})))
TYPE_PARSER(
construct<OmpDependenceType>("IN"_id >> pure(OmpDependenceType::Type::In) ||
"INOUT" >> pure(OmpDependenceType::Type::Inout) ||
"OUT" >> pure(OmpDependenceType::Type::Out)))
TYPE_CONTEXT_PARSER("Omp Depend clause"_en_US,
construct<OmpDependClause>(construct<OmpDependClause::Sink>(
"SINK :" >> nonemptyList(Parser<OmpDependSinkVec>{}))) ||
construct<OmpDependClause>(
construct<OmpDependClause::Source>("SOURCE"_tok)) ||
construct<OmpDependClause>(construct<OmpDependClause::InOut>(
Parser<OmpDependenceType>{}, ":" >> nonemptyList(designator))))
// 2.15.3.7 LINEAR (linear-list: linear-step)
// linear-list -> list | modifier(list)
// linear-modifier -> REF | VAL | UVAL
TYPE_PARSER(
construct<OmpLinearModifier>("REF" >> pure(OmpLinearModifier::Type::Ref) ||
"VAL" >> pure(OmpLinearModifier::Type::Val) ||
"UVAL" >> pure(OmpLinearModifier::Type::Uval)))
TYPE_CONTEXT_PARSER("Omp LINEAR clause"_en_US,
construct<OmpLinearClause>(
construct<OmpLinearClause>(construct<OmpLinearClause::WithModifier>(
Parser<OmpLinearModifier>{}, parenthesized(nonemptyList(name)),
maybe(":" >> scalarIntConstantExpr))) ||
construct<OmpLinearClause>(construct<OmpLinearClause::WithoutModifier>(
nonemptyList(name), maybe(":" >> scalarIntConstantExpr)))))
// 2.8.1 ALIGNED (list: alignment)
TYPE_PARSER(construct<OmpAlignedClause>(
nonemptyList(name), maybe(":" >> scalarIntConstantExpr)))
TYPE_PARSER(
construct<OmpObject>(designator) || construct<OmpObject>("/" >> name / "/"))
TYPE_PARSER(
"ACQUIRE" >> construct<OmpClause>(construct<OmpClause::Acquire>()) ||
"ACQ_REL" >> construct<OmpClause>(construct<OmpClause::AcqRel>()) ||
"ALIGNED" >>
construct<OmpClause>(parenthesized(Parser<OmpAlignedClause>{})) ||
"ALLOCATE" >>
construct<OmpClause>(parenthesized(Parser<OmpAllocateClause>{})) ||
"COLLAPSE" >> construct<OmpClause>(construct<OmpClause::Collapse>(
parenthesized(scalarIntConstantExpr))) ||
"COPYIN" >> construct<OmpClause>(construct<OmpClause::Copyin>(
parenthesized(Parser<OmpObjectList>{}))) ||
"COPYPRIVATE" >> construct<OmpClause>(construct<OmpClause::Copyprivate>(
(parenthesized(Parser<OmpObjectList>{})))) ||
"DEFAULT"_id >>
construct<OmpClause>(parenthesized(Parser<OmpDefaultClause>{})) ||
"DEFAULTMAP" >>
construct<OmpClause>(parenthesized(Parser<OmpDefaultmapClause>{})) ||
"DEPEND" >>
construct<OmpClause>(parenthesized(Parser<OmpDependClause>{})) ||
"DEVICE" >> construct<OmpClause>(construct<OmpClause::Device>(
parenthesized(scalarIntExpr))) ||
"DIST_SCHEDULE" >>
construct<OmpClause>(construct<OmpDistScheduleClause>(
parenthesized("STATIC" >> maybe("," >> scalarIntExpr)))) ||
"FINAL" >> construct<OmpClause>(construct<OmpClause::Final>(
parenthesized(scalarLogicalExpr))) ||
"FIRSTPRIVATE" >> construct<OmpClause>(construct<OmpClause::Firstprivate>(
parenthesized(Parser<OmpObjectList>{}))) ||
"FROM" >> construct<OmpClause>(construct<OmpClause::From>(
parenthesized(Parser<OmpObjectList>{}))) ||
"GRAINSIZE" >> construct<OmpClause>(construct<OmpClause::Grainsize>(
parenthesized(scalarIntExpr))) ||
"HINT" >> construct<OmpClause>(parenthesized(constantExpr)) ||
"IF" >> construct<OmpClause>(parenthesized(Parser<OmpIfClause>{})) ||
"INBRANCH" >> construct<OmpClause>(construct<OmpClause::Inbranch>()) ||
"IS_DEVICE_PTR" >> construct<OmpClause>(construct<OmpClause::IsDevicePtr>(
parenthesized(nonemptyList(name)))) ||
"LASTPRIVATE" >> construct<OmpClause>(construct<OmpClause::Lastprivate>(
parenthesized(Parser<OmpObjectList>{}))) ||
"LINEAR" >>
construct<OmpClause>(parenthesized(Parser<OmpLinearClause>{})) ||
"LINK" >> construct<OmpClause>(construct<OmpClause::Link>(
parenthesized(Parser<OmpObjectList>{}))) ||
"MAP" >> construct<OmpClause>(parenthesized(Parser<OmpMapClause>{})) ||
"MERGEABLE" >> construct<OmpClause>(construct<OmpClause::Mergeable>()) ||
"NOGROUP" >> construct<OmpClause>(construct<OmpClause::Nogroup>()) ||
"NOTINBRANCH" >>
construct<OmpClause>(construct<OmpClause::Notinbranch>()) ||
"NOWAIT" >> construct<OmpClause>(construct<OmpNowait>()) ||
"NUM_TASKS" >> construct<OmpClause>(construct<OmpClause::NumTasks>(
parenthesized(scalarIntExpr))) ||
"NUM_TEAMS" >> construct<OmpClause>(construct<OmpClause::NumTeams>(
parenthesized(scalarIntExpr))) ||
"NUM_THREADS" >> construct<OmpClause>(construct<OmpClause::NumThreads>(
parenthesized(scalarIntExpr))) ||
"ORDERED" >> construct<OmpClause>(construct<OmpClause::Ordered>(
maybe(parenthesized(scalarIntConstantExpr)))) ||
"PRIORITY" >> construct<OmpClause>(construct<OmpClause::Priority>(
parenthesized(scalarIntExpr))) ||
"PRIVATE" >> construct<OmpClause>(construct<OmpClause::Private>(
parenthesized(Parser<OmpObjectList>{}))) ||
"PROC_BIND" >>
construct<OmpClause>(parenthesized(Parser<OmpProcBindClause>{})) ||
"REDUCTION" >>
construct<OmpClause>(parenthesized(Parser<OmpReductionClause>{})) ||
"RELAXED" >> construct<OmpClause>(construct<OmpClause::Relaxed>()) ||
"RELEASE" >> construct<OmpClause>(construct<OmpClause::Release>()) ||
"SAFELEN" >> construct<OmpClause>(construct<OmpClause::Safelen>(
parenthesized(scalarIntConstantExpr))) ||
"SCHEDULE" >>
construct<OmpClause>(parenthesized(Parser<OmpScheduleClause>{})) ||
"SEQ_CST" >> construct<OmpClause>(construct<OmpClause::SeqCst>()) ||
"SHARED" >> construct<OmpClause>(construct<OmpClause::Shared>(
parenthesized(Parser<OmpObjectList>{}))) ||
"SIMD"_id >> construct<OmpClause>(construct<OmpClause::Simd>()) ||
"SIMDLEN" >> construct<OmpClause>(construct<OmpClause::Simdlen>(
parenthesized(scalarIntConstantExpr))) ||
"THREADS" >> construct<OmpClause>(construct<OmpClause::Threads>()) ||
"THREAD_LIMIT" >> construct<OmpClause>(construct<OmpClause::ThreadLimit>(
parenthesized(scalarIntExpr))) ||
"TO" >> construct<OmpClause>(construct<OmpClause::To>(
parenthesized(Parser<OmpObjectList>{}))) ||
"USE_DEVICE_PTR" >> construct<OmpClause>(construct<OmpClause::UseDevicePtr>(
parenthesized(nonemptyList(name)))) ||
"UNIFORM" >> construct<OmpClause>(construct<OmpClause::Uniform>(
parenthesized(nonemptyList(name)))) ||
"UNTIED" >> construct<OmpClause>(construct<OmpClause::Untied>()))
// [Clause, [Clause], ...]
TYPE_PARSER(sourced(construct<OmpClauseList>(
many(maybe(","_tok) >> sourced(Parser<OmpClause>{})))))
// 2.1 (variable | /common-block | array-sections)
TYPE_PARSER(construct<OmpObjectList>(nonemptyList(Parser<OmpObject>{})))
// Omp directives enclosing do loop
TYPE_PARSER(sourced(construct<OmpLoopDirective>(first(
"DISTRIBUTE PARALLEL DO SIMD" >>
pure(llvm::omp::Directive::OMPD_distribute_parallel_do_simd),
"DISTRIBUTE PARALLEL DO" >>
pure(llvm::omp::Directive::OMPD_distribute_parallel_do),
"DISTRIBUTE SIMD" >> pure(llvm::omp::Directive::OMPD_distribute_simd),
"DISTRIBUTE" >> pure(llvm::omp::Directive::OMPD_distribute),
"DO SIMD" >> pure(llvm::omp::Directive::OMPD_do_simd),
"DO" >> pure(llvm::omp::Directive::OMPD_do),
"PARALLEL DO SIMD" >> pure(llvm::omp::Directive::OMPD_parallel_do_simd),
"PARALLEL DO" >> pure(llvm::omp::Directive::OMPD_parallel_do),
"SIMD" >> pure(llvm::omp::Directive::OMPD_simd),
"TARGET PARALLEL DO SIMD" >>
pure(llvm::omp::Directive::OMPD_target_parallel_do_simd),
"TARGET PARALLEL DO" >> pure(llvm::omp::Directive::OMPD_target_parallel_do),
"TARGET SIMD" >> pure(llvm::omp::Directive::OMPD_target_simd),
"TARGET TEAMS DISTRIBUTE PARALLEL DO SIMD" >>
pure(llvm::omp::Directive::
OMPD_target_teams_distribute_parallel_do_simd),
"TARGET TEAMS DISTRIBUTE PARALLEL DO" >>
pure(llvm::omp::Directive::OMPD_target_teams_distribute_parallel_do),
"TARGET TEAMS DISTRIBUTE SIMD" >>
pure(llvm::omp::Directive::OMPD_target_teams_distribute_simd),
"TARGET TEAMS DISTRIBUTE" >>
pure(llvm::omp::Directive::OMPD_target_teams_distribute),
"TASKLOOP SIMD" >> pure(llvm::omp::Directive::OMPD_taskloop_simd),
"TASKLOOP" >> pure(llvm::omp::Directive::OMPD_taskloop),
"TEAMS DISTRIBUTE PARALLEL DO SIMD" >>
pure(llvm::omp::Directive::OMPD_teams_distribute_parallel_do_simd),
"TEAMS DISTRIBUTE PARALLEL DO" >>
pure(llvm::omp::Directive::OMPD_teams_distribute_parallel_do),
"TEAMS DISTRIBUTE SIMD" >>
pure(llvm::omp::Directive::OMPD_teams_distribute_simd),
"TEAMS DISTRIBUTE" >> pure(llvm::omp::Directive::OMPD_teams_distribute)))))
TYPE_PARSER(sourced(construct<OmpBeginLoopDirective>(
sourced(Parser<OmpLoopDirective>{}), Parser<OmpClauseList>{})))
// 2.14.1 construct-type-clause -> PARALLEL | SECTIONS | DO | TASKGROUP
TYPE_PARSER(sourced(construct<OmpCancelType>(
first("PARALLEL" >> pure(OmpCancelType::Type::Parallel),
"SECTIONS" >> pure(OmpCancelType::Type::Sections),
"DO" >> pure(OmpCancelType::Type::Do),
"TASKGROUP" >> pure(OmpCancelType::Type::Taskgroup)))))
// 2.14.2 Cancellation Point construct
TYPE_PARSER(sourced(construct<OpenMPCancellationPointConstruct>(
verbatim("CANCELLATION POINT"_tok), Parser<OmpCancelType>{})))
// 2.14.1 Cancel construct
TYPE_PARSER(sourced(construct<OpenMPCancelConstruct>(verbatim("CANCEL"_tok),
Parser<OmpCancelType>{}, maybe("IF" >> parenthesized(scalarLogicalExpr)))))
// 2.17.8 Flush construct [OpenMP 5.0]
// flush -> FLUSH [memory-order-clause] [(variable-name-list)]
// memory-order-clause -> acq_rel
// release
// acquire
TYPE_PARSER(sourced(construct<OmpFlushMemoryClause>(
"ACQ_REL" >> pure(llvm::omp::Clause::OMPC_acq_rel) ||
"RELEASE" >> pure(llvm::omp::Clause::OMPC_release) ||
"ACQUIRE" >> pure(llvm::omp::Clause::OMPC_acquire))))
TYPE_PARSER(sourced(construct<OpenMPFlushConstruct>(verbatim("FLUSH"_tok),
maybe(Parser<OmpFlushMemoryClause>{}),
maybe(parenthesized(Parser<OmpObjectList>{})))))
// Simple Standalone Directives
TYPE_PARSER(sourced(construct<OmpSimpleStandaloneDirective>(first(
"BARRIER" >> pure(llvm::omp::Directive::OMPD_barrier),
"ORDERED" >> pure(llvm::omp::Directive::OMPD_ordered),
"TARGET ENTER DATA" >> pure(llvm::omp::Directive::OMPD_target_enter_data),
"TARGET EXIT DATA" >> pure(llvm::omp::Directive::OMPD_target_exit_data),
"TARGET UPDATE" >> pure(llvm::omp::Directive::OMPD_target_update),
"TASKWAIT" >> pure(llvm::omp::Directive::OMPD_taskwait),
"TASKYIELD" >> pure(llvm::omp::Directive::OMPD_taskyield)))))
TYPE_PARSER(sourced(construct<OpenMPSimpleStandaloneConstruct>(
Parser<OmpSimpleStandaloneDirective>{}, Parser<OmpClauseList>{})))
// Standalone Constructs
TYPE_PARSER(
sourced(construct<OpenMPStandaloneConstruct>(
Parser<OpenMPSimpleStandaloneConstruct>{}) ||
construct<OpenMPStandaloneConstruct>(Parser<OpenMPFlushConstruct>{}) ||
construct<OpenMPStandaloneConstruct>(Parser<OpenMPCancelConstruct>{}) ||
construct<OpenMPStandaloneConstruct>(
Parser<OpenMPCancellationPointConstruct>{})) /
endOfLine)
// Directives enclosing structured-block
TYPE_PARSER(construct<OmpBlockDirective>(first(
"MASTER" >> pure(llvm::omp::Directive::OMPD_master),
"ORDERED" >> pure(llvm::omp::Directive::OMPD_ordered),
"PARALLEL WORKSHARE" >> pure(llvm::omp::Directive::OMPD_parallel_workshare),
"PARALLEL" >> pure(llvm::omp::Directive::OMPD_parallel),
"SINGLE" >> pure(llvm::omp::Directive::OMPD_single),
"TARGET DATA" >> pure(llvm::omp::Directive::OMPD_target_data),
"TARGET PARALLEL" >> pure(llvm::omp::Directive::OMPD_target_parallel),
"TARGET TEAMS" >> pure(llvm::omp::Directive::OMPD_target_teams),
"TARGET" >> pure(llvm::omp::Directive::OMPD_target),
"TASK"_id >> pure(llvm::omp::Directive::OMPD_task),
"TASKGROUP" >> pure(llvm::omp::Directive::OMPD_taskgroup),
"TEAMS" >> pure(llvm::omp::Directive::OMPD_teams),
"WORKSHARE" >> pure(llvm::omp::Directive::OMPD_workshare))))
TYPE_PARSER(sourced(construct<OmpBeginBlockDirective>(
sourced(Parser<OmpBlockDirective>{}), Parser<OmpClauseList>{})))
TYPE_PARSER(construct<OmpReductionInitializerClause>(
"INITIALIZER" >> parenthesized("OMP_PRIV =" >> expr)))
// 2.16 Declare Reduction Construct
TYPE_PARSER(sourced(construct<OpenMPDeclareReductionConstruct>(
verbatim("DECLARE REDUCTION"_tok),
"(" >> Parser<OmpReductionOperator>{} / ":",
nonemptyList(Parser<DeclarationTypeSpec>{}) / ":",
Parser<OmpReductionCombiner>{} / ")",
maybe(Parser<OmpReductionInitializerClause>{}))))
// declare-target with list
TYPE_PARSER(sourced(construct<OmpDeclareTargetWithList>(
parenthesized(Parser<OmpObjectList>{}))))
// declare-target with clause
TYPE_PARSER(
sourced(construct<OmpDeclareTargetWithClause>(Parser<OmpClauseList>{})))
// declare-target-specifier
TYPE_PARSER(
construct<OmpDeclareTargetSpecifier>(Parser<OmpDeclareTargetWithList>{}) ||
construct<OmpDeclareTargetSpecifier>(Parser<OmpDeclareTargetWithClause>{}))
// 2.10.6 Declare Target Construct
TYPE_PARSER(sourced(construct<OpenMPDeclareTargetConstruct>(
verbatim("DECLARE TARGET"_tok), Parser<OmpDeclareTargetSpecifier>{})))
TYPE_PARSER(construct<OmpReductionCombiner>(Parser<AssignmentStmt>{}) ||
construct<OmpReductionCombiner>(
construct<OmpReductionCombiner::FunctionCombiner>(
construct<Call>(Parser<ProcedureDesignator>{},
parenthesized(optionalList(actualArgSpec))))))
// 2.17.7 atomic -> ATOMIC [clause [,]] atomic-clause [[,] clause] |
// ATOMIC [clause]
// clause -> memory-order-clause | HINT(hint-expression)
// memory-order-clause -> SEQ_CST | ACQ_REL | RELEASE | ACQUIRE | RELAXED
// atomic-clause -> READ | WRITE | UPDATE | CAPTURE
// OMP END ATOMIC
TYPE_PARSER(construct<OmpEndAtomic>(startOmpLine >> "END ATOMIC"_tok))
// OMP ATOMIC [MEMORY-ORDER-CLAUSE-LIST] READ [MEMORY-ORDER-CLAUSE-LIST]
TYPE_PARSER("ATOMIC" >>
construct<OmpAtomicRead>(Parser<OmpClauseList>{} / maybe(","_tok),
verbatim("READ"_tok), Parser<OmpClauseList>{} / endOmpLine,
statement(assignmentStmt), maybe(Parser<OmpEndAtomic>{} / endOmpLine)))
// OMP ATOMIC [MEMORY-ORDER-CLAUSE-LIST] CAPTURE [MEMORY-ORDER-CLAUSE-LIST]
TYPE_PARSER("ATOMIC" >>
construct<OmpAtomicCapture>(Parser<OmpClauseList>{} / maybe(","_tok),
verbatim("CAPTURE"_tok), Parser<OmpClauseList>{} / endOmpLine,
statement(assignmentStmt), statement(assignmentStmt),
Parser<OmpEndAtomic>{} / endOmpLine))
// OMP ATOMIC [MEMORY-ORDER-CLAUSE-LIST] UPDATE [MEMORY-ORDER-CLAUSE-LIST]
TYPE_PARSER("ATOMIC" >>
construct<OmpAtomicUpdate>(Parser<OmpClauseList>{} / maybe(","_tok),
verbatim("UPDATE"_tok), Parser<OmpClauseList>{} / endOmpLine,
statement(assignmentStmt), maybe(Parser<OmpEndAtomic>{} / endOmpLine)))
// OMP ATOMIC [MEMORY-ORDER-CLAUSE-LIST]
TYPE_PARSER(construct<OmpAtomic>(verbatim("ATOMIC"_tok),
Parser<OmpClauseList>{} / endOmpLine, statement(assignmentStmt),
maybe(Parser<OmpEndAtomic>{} / endOmpLine)))
// OMP ATOMIC [MEMORY-ORDER-CLAUSE-LIST] WRITE [MEMORY-ORDER-CLAUSE-LIST]
TYPE_PARSER("ATOMIC" >>
construct<OmpAtomicWrite>(Parser<OmpClauseList>{} / maybe(","_tok),
verbatim("WRITE"_tok), Parser<OmpClauseList>{} / endOmpLine,
statement(assignmentStmt), maybe(Parser<OmpEndAtomic>{} / endOmpLine)))
// Atomic Construct
TYPE_PARSER(construct<OpenMPAtomicConstruct>(Parser<OmpAtomicRead>{}) ||
construct<OpenMPAtomicConstruct>(Parser<OmpAtomicCapture>{}) ||
construct<OpenMPAtomicConstruct>(Parser<OmpAtomicWrite>{}) ||
construct<OpenMPAtomicConstruct>(Parser<OmpAtomicUpdate>{}) ||
construct<OpenMPAtomicConstruct>(Parser<OmpAtomic>{}))
// 2.13.2 OMP CRITICAL
TYPE_PARSER(startOmpLine >>
sourced(construct<OmpEndCriticalDirective>(
verbatim("END CRITICAL"_tok), maybe(parenthesized(name)))) /
endOmpLine)
TYPE_PARSER(sourced(construct<OmpCriticalDirective>(verbatim("CRITICAL"_tok),
maybe(parenthesized(name)), maybe(Parser<OmpClause>{}))) /
endOmpLine)
TYPE_PARSER(construct<OpenMPCriticalConstruct>(
Parser<OmpCriticalDirective>{}, block, Parser<OmpEndCriticalDirective>{}))
// 2.8.2 Declare Simd construct
TYPE_PARSER(
sourced(construct<OpenMPDeclareSimdConstruct>(verbatim("DECLARE SIMD"_tok),
maybe(parenthesized(name)), Parser<OmpClauseList>{})))
// 2.15.2 Threadprivate directive
TYPE_PARSER(sourced(construct<OpenMPThreadprivate>(
verbatim("THREADPRIVATE"_tok), parenthesized(Parser<OmpObjectList>{}))))
// Declarative constructs
TYPE_PARSER(startOmpLine >>
sourced(construct<OpenMPDeclarativeConstruct>(
Parser<OpenMPDeclareReductionConstruct>{}) ||
construct<OpenMPDeclarativeConstruct>(
Parser<OpenMPDeclareSimdConstruct>{}) ||
construct<OpenMPDeclarativeConstruct>(
Parser<OpenMPDeclareTargetConstruct>{}) ||
construct<OpenMPDeclarativeConstruct>(Parser<OpenMPThreadprivate>{})) /
endOmpLine)
// Block Construct
TYPE_PARSER(construct<OpenMPBlockConstruct>(
Parser<OmpBeginBlockDirective>{} / endOmpLine, block,
Parser<OmpEndBlockDirective>{} / endOmpLine))
// OMP SECTIONS Directive
TYPE_PARSER(construct<OmpSectionsDirective>(first(
"SECTIONS" >> pure(llvm::omp::Directive::OMPD_sections),
"PARALLEL SECTIONS" >> pure(llvm::omp::Directive::OMPD_parallel_sections))))
// OMP BEGIN and END SECTIONS Directive
TYPE_PARSER(sourced(construct<OmpBeginSectionsDirective>(
sourced(Parser<OmpSectionsDirective>{}), Parser<OmpClauseList>{})))
TYPE_PARSER(
startOmpLine >> sourced(construct<OmpEndSectionsDirective>(
sourced("END"_tok >> Parser<OmpSectionsDirective>{}),
Parser<OmpClauseList>{})))
// OMP SECTION-BLOCK
TYPE_PARSER(maybe(startOmpLine >> "SECTION"_tok / endOmpLine) >>
construct<OmpSectionBlocks>(
nonemptySeparated(block, startOmpLine >> "SECTION"_tok / endOmpLine)))
// OMP SECTIONS (2.7.2), PARALLEL SECTIONS (2.11.2)
TYPE_PARSER(construct<OpenMPSectionsConstruct>(
Parser<OmpBeginSectionsDirective>{} / endOmpLine,
Parser<OmpSectionBlocks>{}, Parser<OmpEndSectionsDirective>{} / endOmpLine))
TYPE_CONTEXT_PARSER("OpenMP construct"_en_US,
startOmpLine >>
first(construct<OpenMPConstruct>(Parser<OpenMPSectionsConstruct>{}),
construct<OpenMPConstruct>(Parser<OpenMPLoopConstruct>{}),
construct<OpenMPConstruct>(Parser<OpenMPBlockConstruct>{}),
// OpenMPBlockConstruct is attempted before
// OpenMPStandaloneConstruct to resolve !$OMP ORDERED
construct<OpenMPConstruct>(Parser<OpenMPStandaloneConstruct>{}),
construct<OpenMPConstruct>(Parser<OpenMPAtomicConstruct>{}),
construct<OpenMPConstruct>(Parser<OpenMPCriticalConstruct>{})))
// END OMP Block directives
TYPE_PARSER(
startOmpLine >> sourced(construct<OmpEndBlockDirective>(
sourced("END"_tok >> Parser<OmpBlockDirective>{}),
Parser<OmpClauseList>{})))
// END OMP Loop directives
TYPE_PARSER(
startOmpLine >> sourced(construct<OmpEndLoopDirective>(
sourced("END"_tok >> Parser<OmpLoopDirective>{}),
Parser<OmpClauseList>{})))
TYPE_PARSER(construct<OpenMPLoopConstruct>(
Parser<OmpBeginLoopDirective>{} / endOmpLine))
} // namespace Fortran::parser