forked from OSchip/llvm-project
1144 lines
40 KiB
C++
1144 lines
40 KiB
C++
//===--- ParseOpenMP.cpp - OpenMP directives parsing ----------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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/// \file
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/// \brief This file implements parsing of all OpenMP directives and clauses.
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///
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//===----------------------------------------------------------------------===//
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#include "RAIIObjectsForParser.h"
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#include "clang/AST/ASTConsumer.h"
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#include "clang/AST/ASTContext.h"
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#include "clang/AST/StmtOpenMP.h"
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#include "clang/Parse/ParseDiagnostic.h"
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#include "clang/Parse/Parser.h"
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#include "clang/Sema/Scope.h"
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#include "llvm/ADT/PointerIntPair.h"
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using namespace clang;
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//===----------------------------------------------------------------------===//
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// OpenMP declarative directives.
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//===----------------------------------------------------------------------===//
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namespace {
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enum OpenMPDirectiveKindEx {
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OMPD_cancellation = OMPD_unknown + 1,
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OMPD_data,
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OMPD_enter,
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OMPD_exit,
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OMPD_point,
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OMPD_target_enter,
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OMPD_target_exit
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};
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} // namespace
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// Map token string to extended OMP token kind that are
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// OpenMPDirectiveKind + OpenMPDirectiveKindEx.
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static unsigned getOpenMPDirectiveKindEx(StringRef S) {
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auto DKind = getOpenMPDirectiveKind(S);
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if (DKind != OMPD_unknown)
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return DKind;
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return llvm::StringSwitch<unsigned>(S)
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.Case("cancellation", OMPD_cancellation)
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.Case("data", OMPD_data)
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.Case("enter", OMPD_enter)
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.Case("exit", OMPD_exit)
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.Case("point", OMPD_point)
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.Default(OMPD_unknown);
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}
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static OpenMPDirectiveKind ParseOpenMPDirectiveKind(Parser &P) {
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// Array of foldings: F[i][0] F[i][1] ===> F[i][2].
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// E.g.: OMPD_for OMPD_simd ===> OMPD_for_simd
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// TODO: add other combined directives in topological order.
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static const unsigned F[][3] = {
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{ OMPD_cancellation, OMPD_point, OMPD_cancellation_point },
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{ OMPD_target, OMPD_data, OMPD_target_data },
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{ OMPD_target, OMPD_enter, OMPD_target_enter },
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{ OMPD_target, OMPD_exit, OMPD_target_exit },
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{ OMPD_target_enter, OMPD_data, OMPD_target_enter_data },
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{ OMPD_target_exit, OMPD_data, OMPD_target_exit_data },
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{ OMPD_for, OMPD_simd, OMPD_for_simd },
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{ OMPD_parallel, OMPD_for, OMPD_parallel_for },
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{ OMPD_parallel_for, OMPD_simd, OMPD_parallel_for_simd },
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{ OMPD_parallel, OMPD_sections, OMPD_parallel_sections },
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{ OMPD_taskloop, OMPD_simd, OMPD_taskloop_simd },
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{ OMPD_target, OMPD_parallel, OMPD_target_parallel },
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{ OMPD_target_parallel, OMPD_for, OMPD_target_parallel_for }
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};
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auto Tok = P.getCurToken();
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unsigned DKind =
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Tok.isAnnotation()
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? static_cast<unsigned>(OMPD_unknown)
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: getOpenMPDirectiveKindEx(P.getPreprocessor().getSpelling(Tok));
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if (DKind == OMPD_unknown)
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return OMPD_unknown;
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for (unsigned i = 0; i < llvm::array_lengthof(F); ++i) {
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if (DKind != F[i][0])
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continue;
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Tok = P.getPreprocessor().LookAhead(0);
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unsigned SDKind =
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Tok.isAnnotation()
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? static_cast<unsigned>(OMPD_unknown)
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: getOpenMPDirectiveKindEx(P.getPreprocessor().getSpelling(Tok));
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if (SDKind == OMPD_unknown)
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continue;
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if (SDKind == F[i][1]) {
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P.ConsumeToken();
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DKind = F[i][2];
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}
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}
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return DKind <= OMPD_unknown ? static_cast<OpenMPDirectiveKind>(DKind)
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: OMPD_unknown;
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}
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/// \brief Parsing of declarative OpenMP directives.
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///
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/// threadprivate-directive:
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/// annot_pragma_openmp 'threadprivate' simple-variable-list
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///
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Parser::DeclGroupPtrTy Parser::ParseOpenMPDeclarativeDirective() {
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assert(Tok.is(tok::annot_pragma_openmp) && "Not an OpenMP directive!");
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ParenBraceBracketBalancer BalancerRAIIObj(*this);
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SourceLocation Loc = ConsumeToken();
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SmallVector<Expr *, 5> Identifiers;
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auto DKind = ParseOpenMPDirectiveKind(*this);
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switch (DKind) {
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case OMPD_threadprivate:
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ConsumeToken();
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if (!ParseOpenMPSimpleVarList(OMPD_threadprivate, Identifiers, true)) {
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// The last seen token is annot_pragma_openmp_end - need to check for
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// extra tokens.
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if (Tok.isNot(tok::annot_pragma_openmp_end)) {
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Diag(Tok, diag::warn_omp_extra_tokens_at_eol)
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<< getOpenMPDirectiveName(OMPD_threadprivate);
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SkipUntil(tok::annot_pragma_openmp_end, StopBeforeMatch);
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}
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// Skip the last annot_pragma_openmp_end.
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ConsumeToken();
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return Actions.ActOnOpenMPThreadprivateDirective(Loc, Identifiers);
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}
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break;
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case OMPD_unknown:
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Diag(Tok, diag::err_omp_unknown_directive);
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break;
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case OMPD_parallel:
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case OMPD_simd:
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case OMPD_task:
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case OMPD_taskyield:
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case OMPD_barrier:
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case OMPD_taskwait:
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case OMPD_taskgroup:
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case OMPD_flush:
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case OMPD_for:
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case OMPD_for_simd:
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case OMPD_sections:
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case OMPD_section:
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case OMPD_single:
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case OMPD_master:
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case OMPD_ordered:
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case OMPD_critical:
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case OMPD_parallel_for:
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case OMPD_parallel_for_simd:
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case OMPD_parallel_sections:
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case OMPD_atomic:
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case OMPD_target:
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case OMPD_teams:
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case OMPD_cancellation_point:
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case OMPD_cancel:
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case OMPD_target_data:
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case OMPD_target_enter_data:
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case OMPD_target_exit_data:
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case OMPD_target_parallel:
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case OMPD_target_parallel_for:
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case OMPD_taskloop:
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case OMPD_taskloop_simd:
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case OMPD_distribute:
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Diag(Tok, diag::err_omp_unexpected_directive)
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<< getOpenMPDirectiveName(DKind);
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break;
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}
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SkipUntil(tok::annot_pragma_openmp_end);
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return nullptr;
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}
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/// \brief Parsing of declarative or executable OpenMP directives.
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///
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/// threadprivate-directive:
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/// annot_pragma_openmp 'threadprivate' simple-variable-list
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/// annot_pragma_openmp_end
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///
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/// executable-directive:
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/// annot_pragma_openmp 'parallel' | 'simd' | 'for' | 'sections' |
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/// 'section' | 'single' | 'master' | 'critical' [ '(' <name> ')' ] |
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/// 'parallel for' | 'parallel sections' | 'task' | 'taskyield' |
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/// 'barrier' | 'taskwait' | 'flush' | 'ordered' | 'atomic' |
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/// 'for simd' | 'parallel for simd' | 'target' | 'target data' |
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/// 'taskgroup' | 'teams' | 'taskloop' | 'taskloop simd' |
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/// 'distribute' | 'target enter data' | 'target exit data' |
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/// 'target parallel' | 'target parallel for' {clause}
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/// annot_pragma_openmp_end
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///
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StmtResult Parser::ParseOpenMPDeclarativeOrExecutableDirective(
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AllowedContsructsKind Allowed) {
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assert(Tok.is(tok::annot_pragma_openmp) && "Not an OpenMP directive!");
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ParenBraceBracketBalancer BalancerRAIIObj(*this);
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SmallVector<Expr *, 5> Identifiers;
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SmallVector<OMPClause *, 5> Clauses;
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SmallVector<llvm::PointerIntPair<OMPClause *, 1, bool>, OMPC_unknown + 1>
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FirstClauses(OMPC_unknown + 1);
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unsigned ScopeFlags =
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Scope::FnScope | Scope::DeclScope | Scope::OpenMPDirectiveScope;
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SourceLocation Loc = ConsumeToken(), EndLoc;
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auto DKind = ParseOpenMPDirectiveKind(*this);
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OpenMPDirectiveKind CancelRegion = OMPD_unknown;
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// Name of critical directive.
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DeclarationNameInfo DirName;
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StmtResult Directive = StmtError();
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bool HasAssociatedStatement = true;
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bool FlushHasClause = false;
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switch (DKind) {
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case OMPD_threadprivate:
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if (Allowed != ACK_Any) {
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Diag(Tok, diag::err_omp_immediate_directive)
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<< getOpenMPDirectiveName(DKind) << 0;
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}
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ConsumeToken();
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if (!ParseOpenMPSimpleVarList(OMPD_threadprivate, Identifiers, false)) {
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// The last seen token is annot_pragma_openmp_end - need to check for
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// extra tokens.
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if (Tok.isNot(tok::annot_pragma_openmp_end)) {
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Diag(Tok, diag::warn_omp_extra_tokens_at_eol)
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<< getOpenMPDirectiveName(OMPD_threadprivate);
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SkipUntil(tok::annot_pragma_openmp_end, StopBeforeMatch);
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}
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DeclGroupPtrTy Res =
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Actions.ActOnOpenMPThreadprivateDirective(Loc, Identifiers);
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Directive = Actions.ActOnDeclStmt(Res, Loc, Tok.getLocation());
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}
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SkipUntil(tok::annot_pragma_openmp_end);
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break;
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case OMPD_flush:
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if (PP.LookAhead(0).is(tok::l_paren)) {
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FlushHasClause = true;
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// Push copy of the current token back to stream to properly parse
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// pseudo-clause OMPFlushClause.
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PP.EnterToken(Tok);
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}
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case OMPD_taskyield:
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case OMPD_barrier:
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case OMPD_taskwait:
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case OMPD_cancellation_point:
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case OMPD_cancel:
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case OMPD_target_enter_data:
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case OMPD_target_exit_data:
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if (Allowed == ACK_StatementsOpenMPNonStandalone) {
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Diag(Tok, diag::err_omp_immediate_directive)
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<< getOpenMPDirectiveName(DKind) << 0;
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}
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HasAssociatedStatement = false;
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// Fall through for further analysis.
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case OMPD_parallel:
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case OMPD_simd:
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case OMPD_for:
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case OMPD_for_simd:
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case OMPD_sections:
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case OMPD_single:
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case OMPD_section:
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case OMPD_master:
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case OMPD_critical:
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case OMPD_parallel_for:
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case OMPD_parallel_for_simd:
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case OMPD_parallel_sections:
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case OMPD_task:
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case OMPD_ordered:
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case OMPD_atomic:
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case OMPD_target:
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case OMPD_teams:
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case OMPD_taskgroup:
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case OMPD_target_data:
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case OMPD_target_parallel:
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case OMPD_target_parallel_for:
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case OMPD_taskloop:
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case OMPD_taskloop_simd:
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case OMPD_distribute: {
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ConsumeToken();
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// Parse directive name of the 'critical' directive if any.
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if (DKind == OMPD_critical) {
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BalancedDelimiterTracker T(*this, tok::l_paren,
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tok::annot_pragma_openmp_end);
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if (!T.consumeOpen()) {
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if (Tok.isAnyIdentifier()) {
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DirName =
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DeclarationNameInfo(Tok.getIdentifierInfo(), Tok.getLocation());
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ConsumeAnyToken();
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} else {
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Diag(Tok, diag::err_omp_expected_identifier_for_critical);
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}
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T.consumeClose();
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}
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} else if (DKind == OMPD_cancellation_point || DKind == OMPD_cancel) {
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CancelRegion = ParseOpenMPDirectiveKind(*this);
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if (Tok.isNot(tok::annot_pragma_openmp_end))
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ConsumeToken();
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}
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if (isOpenMPLoopDirective(DKind))
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ScopeFlags |= Scope::OpenMPLoopDirectiveScope;
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if (isOpenMPSimdDirective(DKind))
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ScopeFlags |= Scope::OpenMPSimdDirectiveScope;
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ParseScope OMPDirectiveScope(this, ScopeFlags);
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Actions.StartOpenMPDSABlock(DKind, DirName, Actions.getCurScope(), Loc);
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while (Tok.isNot(tok::annot_pragma_openmp_end)) {
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OpenMPClauseKind CKind =
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Tok.isAnnotation()
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? OMPC_unknown
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: FlushHasClause ? OMPC_flush
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: getOpenMPClauseKind(PP.getSpelling(Tok));
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Actions.StartOpenMPClause(CKind);
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FlushHasClause = false;
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OMPClause *Clause =
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ParseOpenMPClause(DKind, CKind, !FirstClauses[CKind].getInt());
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FirstClauses[CKind].setInt(true);
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if (Clause) {
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FirstClauses[CKind].setPointer(Clause);
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Clauses.push_back(Clause);
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}
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// Skip ',' if any.
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if (Tok.is(tok::comma))
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ConsumeToken();
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Actions.EndOpenMPClause();
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}
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// End location of the directive.
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EndLoc = Tok.getLocation();
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// Consume final annot_pragma_openmp_end.
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ConsumeToken();
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// OpenMP [2.13.8, ordered Construct, Syntax]
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// If the depend clause is specified, the ordered construct is a stand-alone
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// directive.
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if (DKind == OMPD_ordered && FirstClauses[OMPC_depend].getInt()) {
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if (Allowed == ACK_StatementsOpenMPNonStandalone) {
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Diag(Loc, diag::err_omp_immediate_directive)
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<< getOpenMPDirectiveName(DKind) << 1
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<< getOpenMPClauseName(OMPC_depend);
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}
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HasAssociatedStatement = false;
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}
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StmtResult AssociatedStmt;
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if (HasAssociatedStatement) {
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// The body is a block scope like in Lambdas and Blocks.
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Sema::CompoundScopeRAII CompoundScope(Actions);
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Actions.ActOnOpenMPRegionStart(DKind, getCurScope());
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Actions.ActOnStartOfCompoundStmt();
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// Parse statement
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AssociatedStmt = ParseStatement();
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Actions.ActOnFinishOfCompoundStmt();
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AssociatedStmt = Actions.ActOnOpenMPRegionEnd(AssociatedStmt, Clauses);
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}
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Directive = Actions.ActOnOpenMPExecutableDirective(
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DKind, DirName, CancelRegion, Clauses, AssociatedStmt.get(), Loc,
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EndLoc);
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// Exit scope.
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Actions.EndOpenMPDSABlock(Directive.get());
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OMPDirectiveScope.Exit();
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break;
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}
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case OMPD_unknown:
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Diag(Tok, diag::err_omp_unknown_directive);
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SkipUntil(tok::annot_pragma_openmp_end);
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break;
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}
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return Directive;
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}
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/// \brief Parses list of simple variables for '#pragma omp threadprivate'
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/// directive.
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///
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/// simple-variable-list:
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/// '(' id-expression {, id-expression} ')'
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///
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bool Parser::ParseOpenMPSimpleVarList(OpenMPDirectiveKind Kind,
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SmallVectorImpl<Expr *> &VarList,
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bool AllowScopeSpecifier) {
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VarList.clear();
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// Parse '('.
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BalancedDelimiterTracker T(*this, tok::l_paren, tok::annot_pragma_openmp_end);
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if (T.expectAndConsume(diag::err_expected_lparen_after,
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getOpenMPDirectiveName(Kind)))
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return true;
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bool IsCorrect = true;
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bool NoIdentIsFound = true;
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// Read tokens while ')' or annot_pragma_openmp_end is not found.
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while (Tok.isNot(tok::r_paren) && Tok.isNot(tok::annot_pragma_openmp_end)) {
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CXXScopeSpec SS;
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SourceLocation TemplateKWLoc;
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UnqualifiedId Name;
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// Read var name.
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Token PrevTok = Tok;
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NoIdentIsFound = false;
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if (AllowScopeSpecifier && getLangOpts().CPlusPlus &&
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ParseOptionalCXXScopeSpecifier(SS, nullptr, false)) {
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IsCorrect = false;
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SkipUntil(tok::comma, tok::r_paren, tok::annot_pragma_openmp_end,
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StopBeforeMatch);
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} else if (ParseUnqualifiedId(SS, false, false, false, nullptr,
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TemplateKWLoc, Name)) {
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IsCorrect = false;
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SkipUntil(tok::comma, tok::r_paren, tok::annot_pragma_openmp_end,
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StopBeforeMatch);
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} else if (Tok.isNot(tok::comma) && Tok.isNot(tok::r_paren) &&
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Tok.isNot(tok::annot_pragma_openmp_end)) {
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IsCorrect = false;
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SkipUntil(tok::comma, tok::r_paren, tok::annot_pragma_openmp_end,
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StopBeforeMatch);
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Diag(PrevTok.getLocation(), diag::err_expected)
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<< tok::identifier
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<< SourceRange(PrevTok.getLocation(), PrevTokLocation);
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} else {
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DeclarationNameInfo NameInfo = Actions.GetNameFromUnqualifiedId(Name);
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ExprResult Res =
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Actions.ActOnOpenMPIdExpression(getCurScope(), SS, NameInfo);
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if (Res.isUsable())
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VarList.push_back(Res.get());
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}
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// Consume ','.
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if (Tok.is(tok::comma)) {
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ConsumeToken();
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}
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}
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if (NoIdentIsFound) {
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Diag(Tok, diag::err_expected) << tok::identifier;
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IsCorrect = false;
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}
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// Parse ')'.
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IsCorrect = !T.consumeClose() && IsCorrect;
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return !IsCorrect && VarList.empty();
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}
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/// \brief Parsing of OpenMP clauses.
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///
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/// clause:
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/// if-clause | final-clause | num_threads-clause | safelen-clause |
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/// default-clause | private-clause | firstprivate-clause | shared-clause
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/// | linear-clause | aligned-clause | collapse-clause |
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/// lastprivate-clause | reduction-clause | proc_bind-clause |
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/// schedule-clause | copyin-clause | copyprivate-clause | untied-clause |
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/// mergeable-clause | flush-clause | read-clause | write-clause |
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/// update-clause | capture-clause | seq_cst-clause | device-clause |
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/// simdlen-clause | threads-clause | simd-clause | num_teams-clause |
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/// thread_limit-clause | priority-clause | grainsize-clause |
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/// nogroup-clause | num_tasks-clause | hint-clause
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///
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OMPClause *Parser::ParseOpenMPClause(OpenMPDirectiveKind DKind,
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OpenMPClauseKind CKind, bool FirstClause) {
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OMPClause *Clause = nullptr;
|
|
bool ErrorFound = false;
|
|
// Check if clause is allowed for the given directive.
|
|
if (CKind != OMPC_unknown && !isAllowedClauseForDirective(DKind, CKind)) {
|
|
Diag(Tok, diag::err_omp_unexpected_clause) << getOpenMPClauseName(CKind)
|
|
<< getOpenMPDirectiveName(DKind);
|
|
ErrorFound = true;
|
|
}
|
|
|
|
switch (CKind) {
|
|
case OMPC_final:
|
|
case OMPC_num_threads:
|
|
case OMPC_safelen:
|
|
case OMPC_simdlen:
|
|
case OMPC_collapse:
|
|
case OMPC_ordered:
|
|
case OMPC_device:
|
|
case OMPC_num_teams:
|
|
case OMPC_thread_limit:
|
|
case OMPC_priority:
|
|
case OMPC_grainsize:
|
|
case OMPC_num_tasks:
|
|
case OMPC_hint:
|
|
// OpenMP [2.5, Restrictions]
|
|
// At most one num_threads clause can appear on the directive.
|
|
// OpenMP [2.8.1, simd construct, Restrictions]
|
|
// Only one safelen clause can appear on a simd directive.
|
|
// Only one simdlen clause can appear on a simd directive.
|
|
// Only one collapse clause can appear on a simd directive.
|
|
// OpenMP [2.9.1, target data construct, Restrictions]
|
|
// At most one device clause can appear on the directive.
|
|
// OpenMP [2.11.1, task Construct, Restrictions]
|
|
// At most one if clause can appear on the directive.
|
|
// At most one final clause can appear on the directive.
|
|
// OpenMP [teams Construct, Restrictions]
|
|
// At most one num_teams clause can appear on the directive.
|
|
// At most one thread_limit clause can appear on the directive.
|
|
// OpenMP [2.9.1, task Construct, Restrictions]
|
|
// At most one priority clause can appear on the directive.
|
|
// OpenMP [2.9.2, taskloop Construct, Restrictions]
|
|
// At most one grainsize clause can appear on the directive.
|
|
// OpenMP [2.9.2, taskloop Construct, Restrictions]
|
|
// At most one num_tasks clause can appear on the directive.
|
|
if (!FirstClause) {
|
|
Diag(Tok, diag::err_omp_more_one_clause)
|
|
<< getOpenMPDirectiveName(DKind) << getOpenMPClauseName(CKind) << 0;
|
|
ErrorFound = true;
|
|
}
|
|
|
|
if (CKind == OMPC_ordered && PP.LookAhead(/*N=*/0).isNot(tok::l_paren))
|
|
Clause = ParseOpenMPClause(CKind);
|
|
else
|
|
Clause = ParseOpenMPSingleExprClause(CKind);
|
|
break;
|
|
case OMPC_default:
|
|
case OMPC_proc_bind:
|
|
// OpenMP [2.14.3.1, Restrictions]
|
|
// Only a single default clause may be specified on a parallel, task or
|
|
// teams directive.
|
|
// OpenMP [2.5, parallel Construct, Restrictions]
|
|
// At most one proc_bind clause can appear on the directive.
|
|
if (!FirstClause) {
|
|
Diag(Tok, diag::err_omp_more_one_clause)
|
|
<< getOpenMPDirectiveName(DKind) << getOpenMPClauseName(CKind) << 0;
|
|
ErrorFound = true;
|
|
}
|
|
|
|
Clause = ParseOpenMPSimpleClause(CKind);
|
|
break;
|
|
case OMPC_schedule:
|
|
case OMPC_dist_schedule:
|
|
case OMPC_defaultmap:
|
|
// OpenMP [2.7.1, Restrictions, p. 3]
|
|
// Only one schedule clause can appear on a loop directive.
|
|
// OpenMP [2.10.4, Restrictions, p. 106]
|
|
// At most one defaultmap clause can appear on the directive.
|
|
if (!FirstClause) {
|
|
Diag(Tok, diag::err_omp_more_one_clause)
|
|
<< getOpenMPDirectiveName(DKind) << getOpenMPClauseName(CKind) << 0;
|
|
ErrorFound = true;
|
|
}
|
|
|
|
case OMPC_if:
|
|
Clause = ParseOpenMPSingleExprWithArgClause(CKind);
|
|
break;
|
|
case OMPC_nowait:
|
|
case OMPC_untied:
|
|
case OMPC_mergeable:
|
|
case OMPC_read:
|
|
case OMPC_write:
|
|
case OMPC_update:
|
|
case OMPC_capture:
|
|
case OMPC_seq_cst:
|
|
case OMPC_threads:
|
|
case OMPC_simd:
|
|
case OMPC_nogroup:
|
|
// OpenMP [2.7.1, Restrictions, p. 9]
|
|
// Only one ordered clause can appear on a loop directive.
|
|
// OpenMP [2.7.1, Restrictions, C/C++, p. 4]
|
|
// Only one nowait clause can appear on a for directive.
|
|
if (!FirstClause) {
|
|
Diag(Tok, diag::err_omp_more_one_clause)
|
|
<< getOpenMPDirectiveName(DKind) << getOpenMPClauseName(CKind) << 0;
|
|
ErrorFound = true;
|
|
}
|
|
|
|
Clause = ParseOpenMPClause(CKind);
|
|
break;
|
|
case OMPC_private:
|
|
case OMPC_firstprivate:
|
|
case OMPC_lastprivate:
|
|
case OMPC_shared:
|
|
case OMPC_reduction:
|
|
case OMPC_linear:
|
|
case OMPC_aligned:
|
|
case OMPC_copyin:
|
|
case OMPC_copyprivate:
|
|
case OMPC_flush:
|
|
case OMPC_depend:
|
|
case OMPC_map:
|
|
Clause = ParseOpenMPVarListClause(DKind, CKind);
|
|
break;
|
|
case OMPC_unknown:
|
|
Diag(Tok, diag::warn_omp_extra_tokens_at_eol)
|
|
<< getOpenMPDirectiveName(DKind);
|
|
SkipUntil(tok::annot_pragma_openmp_end, StopBeforeMatch);
|
|
break;
|
|
case OMPC_threadprivate:
|
|
Diag(Tok, diag::err_omp_unexpected_clause) << getOpenMPClauseName(CKind)
|
|
<< getOpenMPDirectiveName(DKind);
|
|
SkipUntil(tok::comma, tok::annot_pragma_openmp_end, StopBeforeMatch);
|
|
break;
|
|
}
|
|
return ErrorFound ? nullptr : Clause;
|
|
}
|
|
|
|
/// \brief Parsing of OpenMP clauses with single expressions like 'final',
|
|
/// 'collapse', 'safelen', 'num_threads', 'simdlen', 'num_teams',
|
|
/// 'thread_limit', 'simdlen', 'priority', 'grainsize', 'num_tasks' or 'hint'.
|
|
///
|
|
/// final-clause:
|
|
/// 'final' '(' expression ')'
|
|
///
|
|
/// num_threads-clause:
|
|
/// 'num_threads' '(' expression ')'
|
|
///
|
|
/// safelen-clause:
|
|
/// 'safelen' '(' expression ')'
|
|
///
|
|
/// simdlen-clause:
|
|
/// 'simdlen' '(' expression ')'
|
|
///
|
|
/// collapse-clause:
|
|
/// 'collapse' '(' expression ')'
|
|
///
|
|
/// priority-clause:
|
|
/// 'priority' '(' expression ')'
|
|
///
|
|
/// grainsize-clause:
|
|
/// 'grainsize' '(' expression ')'
|
|
///
|
|
/// num_tasks-clause:
|
|
/// 'num_tasks' '(' expression ')'
|
|
///
|
|
/// hint-clause:
|
|
/// 'hint' '(' expression ')'
|
|
///
|
|
OMPClause *Parser::ParseOpenMPSingleExprClause(OpenMPClauseKind Kind) {
|
|
SourceLocation Loc = ConsumeToken();
|
|
|
|
BalancedDelimiterTracker T(*this, tok::l_paren, tok::annot_pragma_openmp_end);
|
|
if (T.expectAndConsume(diag::err_expected_lparen_after,
|
|
getOpenMPClauseName(Kind)))
|
|
return nullptr;
|
|
|
|
SourceLocation ELoc = Tok.getLocation();
|
|
ExprResult LHS(ParseCastExpression(false, false, NotTypeCast));
|
|
ExprResult Val(ParseRHSOfBinaryExpression(LHS, prec::Conditional));
|
|
Val = Actions.ActOnFinishFullExpr(Val.get(), ELoc);
|
|
|
|
// Parse ')'.
|
|
T.consumeClose();
|
|
|
|
if (Val.isInvalid())
|
|
return nullptr;
|
|
|
|
return Actions.ActOnOpenMPSingleExprClause(
|
|
Kind, Val.get(), Loc, T.getOpenLocation(), T.getCloseLocation());
|
|
}
|
|
|
|
/// \brief Parsing of simple OpenMP clauses like 'default' or 'proc_bind'.
|
|
///
|
|
/// default-clause:
|
|
/// 'default' '(' 'none' | 'shared' ')
|
|
///
|
|
/// proc_bind-clause:
|
|
/// 'proc_bind' '(' 'master' | 'close' | 'spread' ')
|
|
///
|
|
OMPClause *Parser::ParseOpenMPSimpleClause(OpenMPClauseKind Kind) {
|
|
SourceLocation Loc = Tok.getLocation();
|
|
SourceLocation LOpen = ConsumeToken();
|
|
// Parse '('.
|
|
BalancedDelimiterTracker T(*this, tok::l_paren, tok::annot_pragma_openmp_end);
|
|
if (T.expectAndConsume(diag::err_expected_lparen_after,
|
|
getOpenMPClauseName(Kind)))
|
|
return nullptr;
|
|
|
|
unsigned Type = getOpenMPSimpleClauseType(
|
|
Kind, Tok.isAnnotation() ? "" : PP.getSpelling(Tok));
|
|
SourceLocation TypeLoc = Tok.getLocation();
|
|
if (Tok.isNot(tok::r_paren) && Tok.isNot(tok::comma) &&
|
|
Tok.isNot(tok::annot_pragma_openmp_end))
|
|
ConsumeAnyToken();
|
|
|
|
// Parse ')'.
|
|
T.consumeClose();
|
|
|
|
return Actions.ActOnOpenMPSimpleClause(Kind, Type, TypeLoc, LOpen, Loc,
|
|
Tok.getLocation());
|
|
}
|
|
|
|
/// \brief Parsing of OpenMP clauses like 'ordered'.
|
|
///
|
|
/// ordered-clause:
|
|
/// 'ordered'
|
|
///
|
|
/// nowait-clause:
|
|
/// 'nowait'
|
|
///
|
|
/// untied-clause:
|
|
/// 'untied'
|
|
///
|
|
/// mergeable-clause:
|
|
/// 'mergeable'
|
|
///
|
|
/// read-clause:
|
|
/// 'read'
|
|
///
|
|
/// threads-clause:
|
|
/// 'threads'
|
|
///
|
|
/// simd-clause:
|
|
/// 'simd'
|
|
///
|
|
/// nogroup-clause:
|
|
/// 'nogroup'
|
|
///
|
|
OMPClause *Parser::ParseOpenMPClause(OpenMPClauseKind Kind) {
|
|
SourceLocation Loc = Tok.getLocation();
|
|
ConsumeAnyToken();
|
|
|
|
return Actions.ActOnOpenMPClause(Kind, Loc, Tok.getLocation());
|
|
}
|
|
|
|
|
|
/// \brief Parsing of OpenMP clauses with single expressions and some additional
|
|
/// argument like 'schedule' or 'dist_schedule'.
|
|
///
|
|
/// schedule-clause:
|
|
/// 'schedule' '(' [ modifier [ ',' modifier ] ':' ] kind [',' expression ]
|
|
/// ')'
|
|
///
|
|
/// if-clause:
|
|
/// 'if' '(' [ directive-name-modifier ':' ] expression ')'
|
|
///
|
|
/// defaultmap:
|
|
/// 'defaultmap' '(' modifier ':' kind ')'
|
|
///
|
|
OMPClause *Parser::ParseOpenMPSingleExprWithArgClause(OpenMPClauseKind Kind) {
|
|
SourceLocation Loc = ConsumeToken();
|
|
SourceLocation DelimLoc;
|
|
// Parse '('.
|
|
BalancedDelimiterTracker T(*this, tok::l_paren, tok::annot_pragma_openmp_end);
|
|
if (T.expectAndConsume(diag::err_expected_lparen_after,
|
|
getOpenMPClauseName(Kind)))
|
|
return nullptr;
|
|
|
|
ExprResult Val;
|
|
SmallVector<unsigned, 4> Arg;
|
|
SmallVector<SourceLocation, 4> KLoc;
|
|
if (Kind == OMPC_schedule) {
|
|
enum { Modifier1, Modifier2, ScheduleKind, NumberOfElements };
|
|
Arg.resize(NumberOfElements);
|
|
KLoc.resize(NumberOfElements);
|
|
Arg[Modifier1] = OMPC_SCHEDULE_MODIFIER_unknown;
|
|
Arg[Modifier2] = OMPC_SCHEDULE_MODIFIER_unknown;
|
|
Arg[ScheduleKind] = OMPC_SCHEDULE_unknown;
|
|
auto KindModifier = getOpenMPSimpleClauseType(
|
|
Kind, Tok.isAnnotation() ? "" : PP.getSpelling(Tok));
|
|
if (KindModifier > OMPC_SCHEDULE_unknown) {
|
|
// Parse 'modifier'
|
|
Arg[Modifier1] = KindModifier;
|
|
KLoc[Modifier1] = Tok.getLocation();
|
|
if (Tok.isNot(tok::r_paren) && Tok.isNot(tok::comma) &&
|
|
Tok.isNot(tok::annot_pragma_openmp_end))
|
|
ConsumeAnyToken();
|
|
if (Tok.is(tok::comma)) {
|
|
// Parse ',' 'modifier'
|
|
ConsumeAnyToken();
|
|
KindModifier = getOpenMPSimpleClauseType(
|
|
Kind, Tok.isAnnotation() ? "" : PP.getSpelling(Tok));
|
|
Arg[Modifier2] = KindModifier > OMPC_SCHEDULE_unknown
|
|
? KindModifier
|
|
: (unsigned)OMPC_SCHEDULE_unknown;
|
|
KLoc[Modifier2] = Tok.getLocation();
|
|
if (Tok.isNot(tok::r_paren) && Tok.isNot(tok::comma) &&
|
|
Tok.isNot(tok::annot_pragma_openmp_end))
|
|
ConsumeAnyToken();
|
|
}
|
|
// Parse ':'
|
|
if (Tok.is(tok::colon))
|
|
ConsumeAnyToken();
|
|
else
|
|
Diag(Tok, diag::warn_pragma_expected_colon) << "schedule modifier";
|
|
KindModifier = getOpenMPSimpleClauseType(
|
|
Kind, Tok.isAnnotation() ? "" : PP.getSpelling(Tok));
|
|
}
|
|
Arg[ScheduleKind] = KindModifier;
|
|
KLoc[ScheduleKind] = Tok.getLocation();
|
|
if (Tok.isNot(tok::r_paren) && Tok.isNot(tok::comma) &&
|
|
Tok.isNot(tok::annot_pragma_openmp_end))
|
|
ConsumeAnyToken();
|
|
if ((Arg[ScheduleKind] == OMPC_SCHEDULE_static ||
|
|
Arg[ScheduleKind] == OMPC_SCHEDULE_dynamic ||
|
|
Arg[ScheduleKind] == OMPC_SCHEDULE_guided) &&
|
|
Tok.is(tok::comma))
|
|
DelimLoc = ConsumeAnyToken();
|
|
} else if (Kind == OMPC_dist_schedule) {
|
|
Arg.push_back(getOpenMPSimpleClauseType(
|
|
Kind, Tok.isAnnotation() ? "" : PP.getSpelling(Tok)));
|
|
KLoc.push_back(Tok.getLocation());
|
|
if (Tok.isNot(tok::r_paren) && Tok.isNot(tok::comma) &&
|
|
Tok.isNot(tok::annot_pragma_openmp_end))
|
|
ConsumeAnyToken();
|
|
if (Arg.back() == OMPC_DIST_SCHEDULE_static && Tok.is(tok::comma))
|
|
DelimLoc = ConsumeAnyToken();
|
|
} else if (Kind == OMPC_defaultmap) {
|
|
// Get a defaultmap modifier
|
|
Arg.push_back(getOpenMPSimpleClauseType(
|
|
Kind, Tok.isAnnotation() ? "" : PP.getSpelling(Tok)));
|
|
KLoc.push_back(Tok.getLocation());
|
|
if (Tok.isNot(tok::r_paren) && Tok.isNot(tok::comma) &&
|
|
Tok.isNot(tok::annot_pragma_openmp_end))
|
|
ConsumeAnyToken();
|
|
// Parse ':'
|
|
if (Tok.is(tok::colon))
|
|
ConsumeAnyToken();
|
|
else if (Arg.back() != OMPC_DEFAULTMAP_MODIFIER_unknown)
|
|
Diag(Tok, diag::warn_pragma_expected_colon) << "defaultmap modifier";
|
|
// Get a defaultmap kind
|
|
Arg.push_back(getOpenMPSimpleClauseType(
|
|
Kind, Tok.isAnnotation() ? "" : PP.getSpelling(Tok)));
|
|
KLoc.push_back(Tok.getLocation());
|
|
if (Tok.isNot(tok::r_paren) && Tok.isNot(tok::comma) &&
|
|
Tok.isNot(tok::annot_pragma_openmp_end))
|
|
ConsumeAnyToken();
|
|
} else {
|
|
assert(Kind == OMPC_if);
|
|
KLoc.push_back(Tok.getLocation());
|
|
Arg.push_back(ParseOpenMPDirectiveKind(*this));
|
|
if (Arg.back() != OMPD_unknown) {
|
|
ConsumeToken();
|
|
if (Tok.is(tok::colon))
|
|
DelimLoc = ConsumeToken();
|
|
else
|
|
Diag(Tok, diag::warn_pragma_expected_colon)
|
|
<< "directive name modifier";
|
|
}
|
|
}
|
|
|
|
bool NeedAnExpression = (Kind == OMPC_schedule && DelimLoc.isValid()) ||
|
|
(Kind == OMPC_dist_schedule && DelimLoc.isValid()) ||
|
|
Kind == OMPC_if;
|
|
if (NeedAnExpression) {
|
|
SourceLocation ELoc = Tok.getLocation();
|
|
ExprResult LHS(ParseCastExpression(false, false, NotTypeCast));
|
|
Val = ParseRHSOfBinaryExpression(LHS, prec::Conditional);
|
|
Val = Actions.ActOnFinishFullExpr(Val.get(), ELoc);
|
|
}
|
|
|
|
// Parse ')'.
|
|
T.consumeClose();
|
|
|
|
if (NeedAnExpression && Val.isInvalid())
|
|
return nullptr;
|
|
|
|
return Actions.ActOnOpenMPSingleExprWithArgClause(
|
|
Kind, Arg, Val.get(), Loc, T.getOpenLocation(), KLoc, DelimLoc,
|
|
T.getCloseLocation());
|
|
}
|
|
|
|
static bool ParseReductionId(Parser &P, CXXScopeSpec &ReductionIdScopeSpec,
|
|
UnqualifiedId &ReductionId) {
|
|
SourceLocation TemplateKWLoc;
|
|
if (ReductionIdScopeSpec.isEmpty()) {
|
|
auto OOK = OO_None;
|
|
switch (P.getCurToken().getKind()) {
|
|
case tok::plus:
|
|
OOK = OO_Plus;
|
|
break;
|
|
case tok::minus:
|
|
OOK = OO_Minus;
|
|
break;
|
|
case tok::star:
|
|
OOK = OO_Star;
|
|
break;
|
|
case tok::amp:
|
|
OOK = OO_Amp;
|
|
break;
|
|
case tok::pipe:
|
|
OOK = OO_Pipe;
|
|
break;
|
|
case tok::caret:
|
|
OOK = OO_Caret;
|
|
break;
|
|
case tok::ampamp:
|
|
OOK = OO_AmpAmp;
|
|
break;
|
|
case tok::pipepipe:
|
|
OOK = OO_PipePipe;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
if (OOK != OO_None) {
|
|
SourceLocation OpLoc = P.ConsumeToken();
|
|
SourceLocation SymbolLocations[] = {OpLoc, OpLoc, SourceLocation()};
|
|
ReductionId.setOperatorFunctionId(OpLoc, OOK, SymbolLocations);
|
|
return false;
|
|
}
|
|
}
|
|
return P.ParseUnqualifiedId(ReductionIdScopeSpec, /*EnteringContext*/ false,
|
|
/*AllowDestructorName*/ false,
|
|
/*AllowConstructorName*/ false, nullptr,
|
|
TemplateKWLoc, ReductionId);
|
|
}
|
|
|
|
/// \brief Parsing of OpenMP clause 'private', 'firstprivate', 'lastprivate',
|
|
/// 'shared', 'copyin', 'copyprivate', 'flush' or 'reduction'.
|
|
///
|
|
/// private-clause:
|
|
/// 'private' '(' list ')'
|
|
/// firstprivate-clause:
|
|
/// 'firstprivate' '(' list ')'
|
|
/// lastprivate-clause:
|
|
/// 'lastprivate' '(' list ')'
|
|
/// shared-clause:
|
|
/// 'shared' '(' list ')'
|
|
/// linear-clause:
|
|
/// 'linear' '(' linear-list [ ':' linear-step ] ')'
|
|
/// aligned-clause:
|
|
/// 'aligned' '(' list [ ':' alignment ] ')'
|
|
/// reduction-clause:
|
|
/// 'reduction' '(' reduction-identifier ':' list ')'
|
|
/// copyprivate-clause:
|
|
/// 'copyprivate' '(' list ')'
|
|
/// flush-clause:
|
|
/// 'flush' '(' list ')'
|
|
/// depend-clause:
|
|
/// 'depend' '(' in | out | inout : list | source ')'
|
|
/// map-clause:
|
|
/// 'map' '(' [ [ always , ]
|
|
/// to | from | tofrom | alloc | release | delete ':' ] list ')';
|
|
///
|
|
/// For 'linear' clause linear-list may have the following forms:
|
|
/// list
|
|
/// modifier(list)
|
|
/// where modifier is 'val' (C) or 'ref', 'val' or 'uval'(C++).
|
|
OMPClause *Parser::ParseOpenMPVarListClause(OpenMPDirectiveKind DKind,
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OpenMPClauseKind Kind) {
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SourceLocation Loc = Tok.getLocation();
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SourceLocation LOpen = ConsumeToken();
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SourceLocation ColonLoc = SourceLocation();
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// Optional scope specifier and unqualified id for reduction identifier.
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CXXScopeSpec ReductionIdScopeSpec;
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UnqualifiedId ReductionId;
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bool InvalidReductionId = false;
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OpenMPDependClauseKind DepKind = OMPC_DEPEND_unknown;
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// OpenMP 4.1 [2.15.3.7, linear Clause]
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// If no modifier is specified it is assumed to be val.
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OpenMPLinearClauseKind LinearModifier = OMPC_LINEAR_val;
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OpenMPMapClauseKind MapType = OMPC_MAP_unknown;
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OpenMPMapClauseKind MapTypeModifier = OMPC_MAP_unknown;
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bool MapTypeIsImplicit = false;
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bool MapTypeModifierSpecified = false;
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SourceLocation DepLinMapLoc;
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// Parse '('.
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BalancedDelimiterTracker T(*this, tok::l_paren, tok::annot_pragma_openmp_end);
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if (T.expectAndConsume(diag::err_expected_lparen_after,
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getOpenMPClauseName(Kind)))
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return nullptr;
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bool NeedRParenForLinear = false;
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BalancedDelimiterTracker LinearT(*this, tok::l_paren,
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tok::annot_pragma_openmp_end);
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// Handle reduction-identifier for reduction clause.
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if (Kind == OMPC_reduction) {
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ColonProtectionRAIIObject ColonRAII(*this);
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if (getLangOpts().CPlusPlus) {
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ParseOptionalCXXScopeSpecifier(ReductionIdScopeSpec, nullptr, false);
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}
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InvalidReductionId =
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ParseReductionId(*this, ReductionIdScopeSpec, ReductionId);
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if (InvalidReductionId) {
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SkipUntil(tok::colon, tok::r_paren, tok::annot_pragma_openmp_end,
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StopBeforeMatch);
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}
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if (Tok.is(tok::colon)) {
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ColonLoc = ConsumeToken();
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} else {
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Diag(Tok, diag::warn_pragma_expected_colon) << "reduction identifier";
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}
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} else if (Kind == OMPC_depend) {
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// Handle dependency type for depend clause.
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ColonProtectionRAIIObject ColonRAII(*this);
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DepKind = static_cast<OpenMPDependClauseKind>(getOpenMPSimpleClauseType(
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Kind, Tok.is(tok::identifier) ? PP.getSpelling(Tok) : ""));
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DepLinMapLoc = Tok.getLocation();
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if (DepKind == OMPC_DEPEND_unknown) {
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SkipUntil(tok::colon, tok::r_paren, tok::annot_pragma_openmp_end,
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StopBeforeMatch);
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} else {
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ConsumeToken();
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// Special processing for depend(source) clause.
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if (DKind == OMPD_ordered && DepKind == OMPC_DEPEND_source) {
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// Parse ')'.
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T.consumeClose();
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return Actions.ActOnOpenMPVarListClause(
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Kind, llvm::None, /*TailExpr=*/nullptr, Loc, LOpen,
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/*ColonLoc=*/SourceLocation(), Tok.getLocation(),
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ReductionIdScopeSpec, DeclarationNameInfo(), DepKind,
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LinearModifier, MapTypeModifier, MapType, MapTypeIsImplicit,
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DepLinMapLoc);
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}
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}
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if (Tok.is(tok::colon)) {
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ColonLoc = ConsumeToken();
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} else {
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Diag(Tok, DKind == OMPD_ordered ? diag::warn_pragma_expected_colon_r_paren
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: diag::warn_pragma_expected_colon)
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<< "dependency type";
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}
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} else if (Kind == OMPC_linear) {
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// Try to parse modifier if any.
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if (Tok.is(tok::identifier) && PP.LookAhead(0).is(tok::l_paren)) {
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LinearModifier = static_cast<OpenMPLinearClauseKind>(
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getOpenMPSimpleClauseType(Kind, PP.getSpelling(Tok)));
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DepLinMapLoc = ConsumeToken();
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LinearT.consumeOpen();
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NeedRParenForLinear = true;
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}
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} else if (Kind == OMPC_map) {
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// Handle map type for map clause.
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ColonProtectionRAIIObject ColonRAII(*this);
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// the first identifier may be a list item, a map-type or
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// a map-type-modifier
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MapType = static_cast<OpenMPMapClauseKind>(getOpenMPSimpleClauseType(
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Kind, Tok.is(tok::identifier) ? PP.getSpelling(Tok) : ""));
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DepLinMapLoc = Tok.getLocation();
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bool ColonExpected = false;
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if (Tok.is(tok::identifier)) {
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if (PP.LookAhead(0).is(tok::colon)) {
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MapType = static_cast<OpenMPMapClauseKind>(getOpenMPSimpleClauseType(
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Kind, Tok.is(tok::identifier) ? PP.getSpelling(Tok) : ""));
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if (MapType == OMPC_MAP_unknown) {
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Diag(Tok, diag::err_omp_unknown_map_type);
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} else if (MapType == OMPC_MAP_always) {
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Diag(Tok, diag::err_omp_map_type_missing);
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}
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ConsumeToken();
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} else if (PP.LookAhead(0).is(tok::comma)) {
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if (PP.LookAhead(1).is(tok::identifier) &&
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PP.LookAhead(2).is(tok::colon)) {
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MapTypeModifier =
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static_cast<OpenMPMapClauseKind>(getOpenMPSimpleClauseType(
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Kind, Tok.is(tok::identifier) ? PP.getSpelling(Tok) : ""));
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if (MapTypeModifier != OMPC_MAP_always) {
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Diag(Tok, diag::err_omp_unknown_map_type_modifier);
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MapTypeModifier = OMPC_MAP_unknown;
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} else {
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MapTypeModifierSpecified = true;
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}
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ConsumeToken();
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ConsumeToken();
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MapType = static_cast<OpenMPMapClauseKind>(getOpenMPSimpleClauseType(
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Kind, Tok.is(tok::identifier) ? PP.getSpelling(Tok) : ""));
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if (MapType == OMPC_MAP_unknown || MapType == OMPC_MAP_always) {
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Diag(Tok, diag::err_omp_unknown_map_type);
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}
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ConsumeToken();
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} else {
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MapType = OMPC_MAP_tofrom;
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MapTypeIsImplicit = true;
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}
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} else {
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MapType = OMPC_MAP_tofrom;
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MapTypeIsImplicit = true;
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}
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} else {
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MapType = OMPC_MAP_tofrom;
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MapTypeIsImplicit = true;
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}
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if (Tok.is(tok::colon)) {
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ColonLoc = ConsumeToken();
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} else if (ColonExpected) {
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Diag(Tok, diag::warn_pragma_expected_colon) << "map type";
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}
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}
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|
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SmallVector<Expr *, 5> Vars;
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bool IsComma =
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((Kind != OMPC_reduction) && (Kind != OMPC_depend) &&
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(Kind != OMPC_map)) ||
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((Kind == OMPC_reduction) && !InvalidReductionId) ||
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((Kind == OMPC_map) && (MapType != OMPC_MAP_unknown) &&
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(!MapTypeModifierSpecified ||
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(MapTypeModifierSpecified && MapTypeModifier == OMPC_MAP_always))) ||
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((Kind == OMPC_depend) && DepKind != OMPC_DEPEND_unknown);
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const bool MayHaveTail = (Kind == OMPC_linear || Kind == OMPC_aligned);
|
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while (IsComma || (Tok.isNot(tok::r_paren) && Tok.isNot(tok::colon) &&
|
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Tok.isNot(tok::annot_pragma_openmp_end))) {
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ColonProtectionRAIIObject ColonRAII(*this, MayHaveTail);
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// Parse variable
|
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ExprResult VarExpr =
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Actions.CorrectDelayedTyposInExpr(ParseAssignmentExpression());
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if (VarExpr.isUsable()) {
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Vars.push_back(VarExpr.get());
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} else {
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SkipUntil(tok::comma, tok::r_paren, tok::annot_pragma_openmp_end,
|
|
StopBeforeMatch);
|
|
}
|
|
// Skip ',' if any
|
|
IsComma = Tok.is(tok::comma);
|
|
if (IsComma)
|
|
ConsumeToken();
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|
else if (Tok.isNot(tok::r_paren) &&
|
|
Tok.isNot(tok::annot_pragma_openmp_end) &&
|
|
(!MayHaveTail || Tok.isNot(tok::colon)))
|
|
Diag(Tok, diag::err_omp_expected_punc)
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<< ((Kind == OMPC_flush) ? getOpenMPDirectiveName(OMPD_flush)
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: getOpenMPClauseName(Kind))
|
|
<< (Kind == OMPC_flush);
|
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}
|
|
|
|
// Parse ')' for linear clause with modifier.
|
|
if (NeedRParenForLinear)
|
|
LinearT.consumeClose();
|
|
|
|
// Parse ':' linear-step (or ':' alignment).
|
|
Expr *TailExpr = nullptr;
|
|
const bool MustHaveTail = MayHaveTail && Tok.is(tok::colon);
|
|
if (MustHaveTail) {
|
|
ColonLoc = Tok.getLocation();
|
|
SourceLocation ELoc = ConsumeToken();
|
|
ExprResult Tail = ParseAssignmentExpression();
|
|
Tail = Actions.ActOnFinishFullExpr(Tail.get(), ELoc);
|
|
if (Tail.isUsable())
|
|
TailExpr = Tail.get();
|
|
else
|
|
SkipUntil(tok::comma, tok::r_paren, tok::annot_pragma_openmp_end,
|
|
StopBeforeMatch);
|
|
}
|
|
|
|
// Parse ')'.
|
|
T.consumeClose();
|
|
if ((Kind == OMPC_depend && DepKind != OMPC_DEPEND_unknown && Vars.empty()) ||
|
|
(Kind != OMPC_depend && Kind != OMPC_map && Vars.empty()) ||
|
|
(MustHaveTail && !TailExpr) || InvalidReductionId) {
|
|
return nullptr;
|
|
}
|
|
|
|
return Actions.ActOnOpenMPVarListClause(
|
|
Kind, Vars, TailExpr, Loc, LOpen, ColonLoc, Tok.getLocation(),
|
|
ReductionIdScopeSpec,
|
|
ReductionId.isValid() ? Actions.GetNameFromUnqualifiedId(ReductionId)
|
|
: DeclarationNameInfo(),
|
|
DepKind, LinearModifier, MapTypeModifier, MapType, MapTypeIsImplicit,
|
|
DepLinMapLoc);
|
|
}
|
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|