forked from OSchip/llvm-project
1853 lines
65 KiB
C++
1853 lines
65 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 "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/Parse/RAIIObjectsForParser.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_declare,
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OMPD_end,
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OMPD_end_declare,
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OMPD_enter,
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OMPD_exit,
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OMPD_point,
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OMPD_reduction,
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OMPD_target_enter,
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OMPD_target_exit,
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OMPD_update,
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OMPD_distribute_parallel,
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OMPD_teams_distribute_parallel,
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OMPD_target_teams_distribute_parallel
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};
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class ThreadprivateListParserHelper final {
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SmallVector<Expr *, 4> Identifiers;
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Parser *P;
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public:
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ThreadprivateListParserHelper(Parser *P) : P(P) {}
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void operator()(CXXScopeSpec &SS, DeclarationNameInfo NameInfo) {
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ExprResult Res =
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P->getActions().ActOnOpenMPIdExpression(P->getCurScope(), SS, NameInfo);
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if (Res.isUsable())
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Identifiers.push_back(Res.get());
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}
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llvm::ArrayRef<Expr *> getIdentifiers() const { return Identifiers; }
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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("declare", OMPD_declare)
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.Case("end", OMPD_end)
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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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.Case("reduction", OMPD_reduction)
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.Case("update", OMPD_update)
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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_declare, OMPD_reduction, OMPD_declare_reduction },
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{ OMPD_declare, OMPD_simd, OMPD_declare_simd },
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{ OMPD_declare, OMPD_target, OMPD_declare_target },
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{ OMPD_distribute, OMPD_parallel, OMPD_distribute_parallel },
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{ OMPD_distribute_parallel, OMPD_for, OMPD_distribute_parallel_for },
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{ OMPD_distribute_parallel_for, OMPD_simd,
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OMPD_distribute_parallel_for_simd },
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{ OMPD_distribute, OMPD_simd, OMPD_distribute_simd },
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{ OMPD_end, OMPD_declare, OMPD_end_declare },
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{ OMPD_end_declare, OMPD_target, OMPD_end_declare_target },
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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, OMPD_update, OMPD_target_update },
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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, OMPD_simd, OMPD_target_simd },
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{ OMPD_target_parallel, OMPD_for, OMPD_target_parallel_for },
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{ OMPD_target_parallel_for, OMPD_simd, OMPD_target_parallel_for_simd },
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{ OMPD_teams, OMPD_distribute, OMPD_teams_distribute },
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{ OMPD_teams_distribute, OMPD_simd, OMPD_teams_distribute_simd },
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{ OMPD_teams_distribute, OMPD_parallel, OMPD_teams_distribute_parallel },
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{ OMPD_teams_distribute_parallel, OMPD_for, OMPD_teams_distribute_parallel_for },
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{ OMPD_teams_distribute_parallel_for, OMPD_simd, OMPD_teams_distribute_parallel_for_simd },
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{ OMPD_target, OMPD_teams, OMPD_target_teams },
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{ OMPD_target_teams, OMPD_distribute, OMPD_target_teams_distribute },
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{ OMPD_target_teams_distribute, OMPD_parallel, OMPD_target_teams_distribute_parallel },
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{ OMPD_target_teams_distribute, OMPD_simd, OMPD_target_teams_distribute_simd },
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{ OMPD_target_teams_distribute_parallel, OMPD_for, OMPD_target_teams_distribute_parallel_for },
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{ OMPD_target_teams_distribute_parallel_for, OMPD_simd, OMPD_target_teams_distribute_parallel_for_simd }
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};
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enum { CancellationPoint = 0, DeclareReduction = 1, TargetData = 2 };
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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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static DeclarationName parseOpenMPReductionId(Parser &P) {
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Token Tok = P.getCurToken();
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Sema &Actions = P.getActions();
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OverloadedOperatorKind OOK = OO_None;
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// Allow to use 'operator' keyword for C++ operators
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bool WithOperator = false;
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if (Tok.is(tok::kw_operator)) {
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P.ConsumeToken();
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Tok = P.getCurToken();
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WithOperator = true;
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}
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switch (Tok.getKind()) {
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case tok::plus: // '+'
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OOK = OO_Plus;
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break;
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case tok::minus: // '-'
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OOK = OO_Minus;
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break;
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case tok::star: // '*'
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OOK = OO_Star;
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break;
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case tok::amp: // '&'
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OOK = OO_Amp;
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break;
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case tok::pipe: // '|'
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OOK = OO_Pipe;
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break;
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case tok::caret: // '^'
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OOK = OO_Caret;
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break;
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case tok::ampamp: // '&&'
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OOK = OO_AmpAmp;
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break;
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case tok::pipepipe: // '||'
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OOK = OO_PipePipe;
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break;
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case tok::identifier: // identifier
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if (!WithOperator)
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break;
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LLVM_FALLTHROUGH;
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default:
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P.Diag(Tok.getLocation(), diag::err_omp_expected_reduction_identifier);
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P.SkipUntil(tok::colon, tok::r_paren, tok::annot_pragma_openmp_end,
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Parser::StopBeforeMatch);
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return DeclarationName();
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}
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P.ConsumeToken();
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auto &DeclNames = Actions.getASTContext().DeclarationNames;
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return OOK == OO_None ? DeclNames.getIdentifier(Tok.getIdentifierInfo())
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: DeclNames.getCXXOperatorName(OOK);
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}
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/// \brief Parse 'omp declare reduction' construct.
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///
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/// declare-reduction-directive:
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/// annot_pragma_openmp 'declare' 'reduction'
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/// '(' <reduction_id> ':' <type> {',' <type>} ':' <expression> ')'
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/// ['initializer' '(' ('omp_priv' '=' <expression>)|<function_call> ')']
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/// annot_pragma_openmp_end
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/// <reduction_id> is either a base language identifier or one of the following
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/// operators: '+', '-', '*', '&', '|', '^', '&&' and '||'.
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///
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Parser::DeclGroupPtrTy
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Parser::ParseOpenMPDeclareReductionDirective(AccessSpecifier AS) {
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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(OMPD_declare_reduction))) {
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SkipUntil(tok::annot_pragma_openmp_end, StopBeforeMatch);
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return DeclGroupPtrTy();
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}
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DeclarationName Name = parseOpenMPReductionId(*this);
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if (Name.isEmpty() && Tok.is(tok::annot_pragma_openmp_end))
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return DeclGroupPtrTy();
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// Consume ':'.
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bool IsCorrect = !ExpectAndConsume(tok::colon);
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if (!IsCorrect && Tok.is(tok::annot_pragma_openmp_end))
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return DeclGroupPtrTy();
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IsCorrect = IsCorrect && !Name.isEmpty();
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if (Tok.is(tok::colon) || Tok.is(tok::annot_pragma_openmp_end)) {
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Diag(Tok.getLocation(), diag::err_expected_type);
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IsCorrect = false;
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}
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if (!IsCorrect && Tok.is(tok::annot_pragma_openmp_end))
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return DeclGroupPtrTy();
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SmallVector<std::pair<QualType, SourceLocation>, 8> ReductionTypes;
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// Parse list of types until ':' token.
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do {
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ColonProtectionRAIIObject ColonRAII(*this);
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SourceRange Range;
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TypeResult TR = ParseTypeName(&Range, Declarator::PrototypeContext, AS);
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if (TR.isUsable()) {
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auto ReductionType =
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Actions.ActOnOpenMPDeclareReductionType(Range.getBegin(), TR);
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if (!ReductionType.isNull()) {
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ReductionTypes.push_back(
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std::make_pair(ReductionType, Range.getBegin()));
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}
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} else {
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SkipUntil(tok::comma, tok::colon, tok::annot_pragma_openmp_end,
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StopBeforeMatch);
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}
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if (Tok.is(tok::colon) || Tok.is(tok::annot_pragma_openmp_end))
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break;
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// Consume ','.
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if (ExpectAndConsume(tok::comma)) {
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IsCorrect = false;
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if (Tok.is(tok::annot_pragma_openmp_end)) {
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Diag(Tok.getLocation(), diag::err_expected_type);
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return DeclGroupPtrTy();
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}
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}
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} while (Tok.isNot(tok::annot_pragma_openmp_end));
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if (ReductionTypes.empty()) {
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SkipUntil(tok::annot_pragma_openmp_end, StopBeforeMatch);
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return DeclGroupPtrTy();
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}
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if (!IsCorrect && Tok.is(tok::annot_pragma_openmp_end))
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return DeclGroupPtrTy();
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// Consume ':'.
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if (ExpectAndConsume(tok::colon))
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IsCorrect = false;
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if (Tok.is(tok::annot_pragma_openmp_end)) {
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Diag(Tok.getLocation(), diag::err_expected_expression);
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return DeclGroupPtrTy();
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}
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DeclGroupPtrTy DRD = Actions.ActOnOpenMPDeclareReductionDirectiveStart(
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getCurScope(), Actions.getCurLexicalContext(), Name, ReductionTypes, AS);
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// Parse <combiner> expression and then parse initializer if any for each
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// correct type.
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unsigned I = 0, E = ReductionTypes.size();
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for (auto *D : DRD.get()) {
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TentativeParsingAction TPA(*this);
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ParseScope OMPDRScope(this, Scope::FnScope | Scope::DeclScope |
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Scope::OpenMPDirectiveScope);
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// Parse <combiner> expression.
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Actions.ActOnOpenMPDeclareReductionCombinerStart(getCurScope(), D);
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ExprResult CombinerResult =
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Actions.ActOnFinishFullExpr(ParseAssignmentExpression().get(),
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D->getLocation(), /*DiscardedValue=*/true);
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Actions.ActOnOpenMPDeclareReductionCombinerEnd(D, CombinerResult.get());
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if (CombinerResult.isInvalid() && Tok.isNot(tok::r_paren) &&
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Tok.isNot(tok::annot_pragma_openmp_end)) {
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TPA.Commit();
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IsCorrect = false;
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break;
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}
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IsCorrect = !T.consumeClose() && IsCorrect && CombinerResult.isUsable();
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ExprResult InitializerResult;
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if (Tok.isNot(tok::annot_pragma_openmp_end)) {
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// Parse <initializer> expression.
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if (Tok.is(tok::identifier) &&
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Tok.getIdentifierInfo()->isStr("initializer"))
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ConsumeToken();
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else {
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Diag(Tok.getLocation(), diag::err_expected) << "'initializer'";
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TPA.Commit();
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IsCorrect = false;
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break;
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}
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// Parse '('.
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BalancedDelimiterTracker T(*this, tok::l_paren,
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tok::annot_pragma_openmp_end);
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IsCorrect =
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!T.expectAndConsume(diag::err_expected_lparen_after, "initializer") &&
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IsCorrect;
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if (Tok.isNot(tok::annot_pragma_openmp_end)) {
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ParseScope OMPDRScope(this, Scope::FnScope | Scope::DeclScope |
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Scope::OpenMPDirectiveScope);
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// Parse expression.
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Actions.ActOnOpenMPDeclareReductionInitializerStart(getCurScope(), D);
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InitializerResult = Actions.ActOnFinishFullExpr(
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ParseAssignmentExpression().get(), D->getLocation(),
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/*DiscardedValue=*/true);
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Actions.ActOnOpenMPDeclareReductionInitializerEnd(
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D, InitializerResult.get());
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if (InitializerResult.isInvalid() && Tok.isNot(tok::r_paren) &&
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Tok.isNot(tok::annot_pragma_openmp_end)) {
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TPA.Commit();
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IsCorrect = false;
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break;
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}
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IsCorrect =
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!T.consumeClose() && IsCorrect && !InitializerResult.isInvalid();
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}
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}
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++I;
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// Revert parsing if not the last type, otherwise accept it, we're done with
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// parsing.
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if (I != E)
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TPA.Revert();
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else
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TPA.Commit();
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}
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return Actions.ActOnOpenMPDeclareReductionDirectiveEnd(getCurScope(), DRD,
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IsCorrect);
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}
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namespace {
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/// RAII that recreates function context for correct parsing of clauses of
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/// 'declare simd' construct.
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/// OpenMP, 2.8.2 declare simd Construct
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/// The expressions appearing in the clauses of this directive are evaluated in
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/// the scope of the arguments of the function declaration or definition.
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class FNContextRAII final {
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Parser &P;
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Sema::CXXThisScopeRAII *ThisScope;
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Parser::ParseScope *TempScope;
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Parser::ParseScope *FnScope;
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bool HasTemplateScope = false;
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bool HasFunScope = false;
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FNContextRAII() = delete;
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FNContextRAII(const FNContextRAII &) = delete;
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FNContextRAII &operator=(const FNContextRAII &) = delete;
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public:
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FNContextRAII(Parser &P, Parser::DeclGroupPtrTy Ptr) : P(P) {
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Decl *D = *Ptr.get().begin();
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NamedDecl *ND = dyn_cast<NamedDecl>(D);
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RecordDecl *RD = dyn_cast_or_null<RecordDecl>(D->getDeclContext());
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Sema &Actions = P.getActions();
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// Allow 'this' within late-parsed attributes.
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ThisScope = new Sema::CXXThisScopeRAII(Actions, RD, /*TypeQuals=*/0,
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ND && ND->isCXXInstanceMember());
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// If the Decl is templatized, add template parameters to scope.
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HasTemplateScope = D->isTemplateDecl();
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TempScope =
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new Parser::ParseScope(&P, Scope::TemplateParamScope, HasTemplateScope);
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if (HasTemplateScope)
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Actions.ActOnReenterTemplateScope(Actions.getCurScope(), D);
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// If the Decl is on a function, add function parameters to the scope.
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HasFunScope = D->isFunctionOrFunctionTemplate();
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FnScope = new Parser::ParseScope(&P, Scope::FnScope | Scope::DeclScope,
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HasFunScope);
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if (HasFunScope)
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Actions.ActOnReenterFunctionContext(Actions.getCurScope(), D);
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}
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~FNContextRAII() {
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if (HasFunScope) {
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P.getActions().ActOnExitFunctionContext();
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FnScope->Exit(); // Pop scope, and remove Decls from IdResolver
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}
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if (HasTemplateScope)
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TempScope->Exit();
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delete FnScope;
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delete TempScope;
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delete ThisScope;
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}
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};
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} // namespace
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/// Parses clauses for 'declare simd' directive.
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/// clause:
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/// 'inbranch' | 'notinbranch'
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/// 'simdlen' '(' <expr> ')'
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/// { 'uniform' '(' <argument_list> ')' }
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/// { 'aligned '(' <argument_list> [ ':' <alignment> ] ')' }
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/// { 'linear '(' <argument_list> [ ':' <step> ] ')' }
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static bool parseDeclareSimdClauses(
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Parser &P, OMPDeclareSimdDeclAttr::BranchStateTy &BS, ExprResult &SimdLen,
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SmallVectorImpl<Expr *> &Uniforms, SmallVectorImpl<Expr *> &Aligneds,
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SmallVectorImpl<Expr *> &Alignments, SmallVectorImpl<Expr *> &Linears,
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SmallVectorImpl<unsigned> &LinModifiers, SmallVectorImpl<Expr *> &Steps) {
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SourceRange BSRange;
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const Token &Tok = P.getCurToken();
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bool IsError = false;
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while (Tok.isNot(tok::annot_pragma_openmp_end)) {
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if (Tok.isNot(tok::identifier))
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break;
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OMPDeclareSimdDeclAttr::BranchStateTy Out;
|
|
IdentifierInfo *II = Tok.getIdentifierInfo();
|
|
StringRef ClauseName = II->getName();
|
|
// Parse 'inranch|notinbranch' clauses.
|
|
if (OMPDeclareSimdDeclAttr::ConvertStrToBranchStateTy(ClauseName, Out)) {
|
|
if (BS != OMPDeclareSimdDeclAttr::BS_Undefined && BS != Out) {
|
|
P.Diag(Tok, diag::err_omp_declare_simd_inbranch_notinbranch)
|
|
<< ClauseName
|
|
<< OMPDeclareSimdDeclAttr::ConvertBranchStateTyToStr(BS) << BSRange;
|
|
IsError = true;
|
|
}
|
|
BS = Out;
|
|
BSRange = SourceRange(Tok.getLocation(), Tok.getEndLoc());
|
|
P.ConsumeToken();
|
|
} else if (ClauseName.equals("simdlen")) {
|
|
if (SimdLen.isUsable()) {
|
|
P.Diag(Tok, diag::err_omp_more_one_clause)
|
|
<< getOpenMPDirectiveName(OMPD_declare_simd) << ClauseName << 0;
|
|
IsError = true;
|
|
}
|
|
P.ConsumeToken();
|
|
SourceLocation RLoc;
|
|
SimdLen = P.ParseOpenMPParensExpr(ClauseName, RLoc);
|
|
if (SimdLen.isInvalid())
|
|
IsError = true;
|
|
} else {
|
|
OpenMPClauseKind CKind = getOpenMPClauseKind(ClauseName);
|
|
if (CKind == OMPC_uniform || CKind == OMPC_aligned ||
|
|
CKind == OMPC_linear) {
|
|
Parser::OpenMPVarListDataTy Data;
|
|
auto *Vars = &Uniforms;
|
|
if (CKind == OMPC_aligned)
|
|
Vars = &Aligneds;
|
|
else if (CKind == OMPC_linear)
|
|
Vars = &Linears;
|
|
|
|
P.ConsumeToken();
|
|
if (P.ParseOpenMPVarList(OMPD_declare_simd,
|
|
getOpenMPClauseKind(ClauseName), *Vars, Data))
|
|
IsError = true;
|
|
if (CKind == OMPC_aligned)
|
|
Alignments.append(Aligneds.size() - Alignments.size(), Data.TailExpr);
|
|
else if (CKind == OMPC_linear) {
|
|
if (P.getActions().CheckOpenMPLinearModifier(Data.LinKind,
|
|
Data.DepLinMapLoc))
|
|
Data.LinKind = OMPC_LINEAR_val;
|
|
LinModifiers.append(Linears.size() - LinModifiers.size(),
|
|
Data.LinKind);
|
|
Steps.append(Linears.size() - Steps.size(), Data.TailExpr);
|
|
}
|
|
} else
|
|
// TODO: add parsing of other clauses.
|
|
break;
|
|
}
|
|
// Skip ',' if any.
|
|
if (Tok.is(tok::comma))
|
|
P.ConsumeToken();
|
|
}
|
|
return IsError;
|
|
}
|
|
|
|
/// Parse clauses for '#pragma omp declare simd'.
|
|
Parser::DeclGroupPtrTy
|
|
Parser::ParseOMPDeclareSimdClauses(Parser::DeclGroupPtrTy Ptr,
|
|
CachedTokens &Toks, SourceLocation Loc) {
|
|
PP.EnterToken(Tok);
|
|
PP.EnterTokenStream(Toks, /*DisableMacroExpansion=*/true);
|
|
// Consume the previously pushed token.
|
|
ConsumeAnyToken(/*ConsumeCodeCompletionTok=*/true);
|
|
|
|
FNContextRAII FnContext(*this, Ptr);
|
|
OMPDeclareSimdDeclAttr::BranchStateTy BS =
|
|
OMPDeclareSimdDeclAttr::BS_Undefined;
|
|
ExprResult Simdlen;
|
|
SmallVector<Expr *, 4> Uniforms;
|
|
SmallVector<Expr *, 4> Aligneds;
|
|
SmallVector<Expr *, 4> Alignments;
|
|
SmallVector<Expr *, 4> Linears;
|
|
SmallVector<unsigned, 4> LinModifiers;
|
|
SmallVector<Expr *, 4> Steps;
|
|
bool IsError =
|
|
parseDeclareSimdClauses(*this, BS, Simdlen, Uniforms, Aligneds,
|
|
Alignments, Linears, LinModifiers, Steps);
|
|
// Need to check for extra tokens.
|
|
if (Tok.isNot(tok::annot_pragma_openmp_end)) {
|
|
Diag(Tok, diag::warn_omp_extra_tokens_at_eol)
|
|
<< getOpenMPDirectiveName(OMPD_declare_simd);
|
|
while (Tok.isNot(tok::annot_pragma_openmp_end))
|
|
ConsumeAnyToken();
|
|
}
|
|
// Skip the last annot_pragma_openmp_end.
|
|
SourceLocation EndLoc = ConsumeAnnotationToken();
|
|
if (!IsError) {
|
|
return Actions.ActOnOpenMPDeclareSimdDirective(
|
|
Ptr, BS, Simdlen.get(), Uniforms, Aligneds, Alignments, Linears,
|
|
LinModifiers, Steps, SourceRange(Loc, EndLoc));
|
|
}
|
|
return Ptr;
|
|
}
|
|
|
|
/// \brief Parsing of declarative OpenMP directives.
|
|
///
|
|
/// threadprivate-directive:
|
|
/// annot_pragma_openmp 'threadprivate' simple-variable-list
|
|
/// annot_pragma_openmp_end
|
|
///
|
|
/// declare-reduction-directive:
|
|
/// annot_pragma_openmp 'declare' 'reduction' [...]
|
|
/// annot_pragma_openmp_end
|
|
///
|
|
/// declare-simd-directive:
|
|
/// annot_pragma_openmp 'declare simd' {<clause> [,]}
|
|
/// annot_pragma_openmp_end
|
|
/// <function declaration/definition>
|
|
///
|
|
Parser::DeclGroupPtrTy Parser::ParseOpenMPDeclarativeDirectiveWithExtDecl(
|
|
AccessSpecifier &AS, ParsedAttributesWithRange &Attrs,
|
|
DeclSpec::TST TagType, Decl *Tag) {
|
|
assert(Tok.is(tok::annot_pragma_openmp) && "Not an OpenMP directive!");
|
|
ParenBraceBracketBalancer BalancerRAIIObj(*this);
|
|
|
|
SourceLocation Loc = ConsumeAnnotationToken();
|
|
auto DKind = ParseOpenMPDirectiveKind(*this);
|
|
|
|
switch (DKind) {
|
|
case OMPD_threadprivate: {
|
|
ConsumeToken();
|
|
ThreadprivateListParserHelper Helper(this);
|
|
if (!ParseOpenMPSimpleVarList(OMPD_threadprivate, Helper, true)) {
|
|
// The last seen token is annot_pragma_openmp_end - need to check for
|
|
// extra tokens.
|
|
if (Tok.isNot(tok::annot_pragma_openmp_end)) {
|
|
Diag(Tok, diag::warn_omp_extra_tokens_at_eol)
|
|
<< getOpenMPDirectiveName(OMPD_threadprivate);
|
|
SkipUntil(tok::annot_pragma_openmp_end, StopBeforeMatch);
|
|
}
|
|
// Skip the last annot_pragma_openmp_end.
|
|
ConsumeAnnotationToken();
|
|
return Actions.ActOnOpenMPThreadprivateDirective(Loc,
|
|
Helper.getIdentifiers());
|
|
}
|
|
break;
|
|
}
|
|
case OMPD_declare_reduction:
|
|
ConsumeToken();
|
|
if (auto Res = ParseOpenMPDeclareReductionDirective(AS)) {
|
|
// The last seen token is annot_pragma_openmp_end - need to check for
|
|
// extra tokens.
|
|
if (Tok.isNot(tok::annot_pragma_openmp_end)) {
|
|
Diag(Tok, diag::warn_omp_extra_tokens_at_eol)
|
|
<< getOpenMPDirectiveName(OMPD_declare_reduction);
|
|
while (Tok.isNot(tok::annot_pragma_openmp_end))
|
|
ConsumeAnyToken();
|
|
}
|
|
// Skip the last annot_pragma_openmp_end.
|
|
ConsumeAnnotationToken();
|
|
return Res;
|
|
}
|
|
break;
|
|
case OMPD_declare_simd: {
|
|
// The syntax is:
|
|
// { #pragma omp declare simd }
|
|
// <function-declaration-or-definition>
|
|
//
|
|
ConsumeToken();
|
|
CachedTokens Toks;
|
|
while(Tok.isNot(tok::annot_pragma_openmp_end)) {
|
|
Toks.push_back(Tok);
|
|
ConsumeAnyToken();
|
|
}
|
|
Toks.push_back(Tok);
|
|
ConsumeAnyToken();
|
|
|
|
DeclGroupPtrTy Ptr;
|
|
if (Tok.is(tok::annot_pragma_openmp))
|
|
Ptr = ParseOpenMPDeclarativeDirectiveWithExtDecl(AS, Attrs, TagType, Tag);
|
|
else if (Tok.isNot(tok::r_brace) && !isEofOrEom()) {
|
|
// Here we expect to see some function declaration.
|
|
if (AS == AS_none) {
|
|
assert(TagType == DeclSpec::TST_unspecified);
|
|
MaybeParseCXX11Attributes(Attrs);
|
|
ParsingDeclSpec PDS(*this);
|
|
Ptr = ParseExternalDeclaration(Attrs, &PDS);
|
|
} else {
|
|
Ptr =
|
|
ParseCXXClassMemberDeclarationWithPragmas(AS, Attrs, TagType, Tag);
|
|
}
|
|
}
|
|
if (!Ptr) {
|
|
Diag(Loc, diag::err_omp_decl_in_declare_simd);
|
|
return DeclGroupPtrTy();
|
|
}
|
|
return ParseOMPDeclareSimdClauses(Ptr, Toks, Loc);
|
|
}
|
|
case OMPD_declare_target: {
|
|
SourceLocation DTLoc = ConsumeAnyToken();
|
|
if (Tok.isNot(tok::annot_pragma_openmp_end)) {
|
|
// OpenMP 4.5 syntax with list of entities.
|
|
llvm::SmallSetVector<const NamedDecl*, 16> SameDirectiveDecls;
|
|
while (Tok.isNot(tok::annot_pragma_openmp_end)) {
|
|
OMPDeclareTargetDeclAttr::MapTypeTy MT =
|
|
OMPDeclareTargetDeclAttr::MT_To;
|
|
if (Tok.is(tok::identifier)) {
|
|
IdentifierInfo *II = Tok.getIdentifierInfo();
|
|
StringRef ClauseName = II->getName();
|
|
// Parse 'to|link' clauses.
|
|
if (!OMPDeclareTargetDeclAttr::ConvertStrToMapTypeTy(ClauseName,
|
|
MT)) {
|
|
Diag(Tok, diag::err_omp_declare_target_unexpected_clause)
|
|
<< ClauseName;
|
|
break;
|
|
}
|
|
ConsumeToken();
|
|
}
|
|
auto Callback = [this, MT, &SameDirectiveDecls](
|
|
CXXScopeSpec &SS, DeclarationNameInfo NameInfo) {
|
|
Actions.ActOnOpenMPDeclareTargetName(getCurScope(), SS, NameInfo, MT,
|
|
SameDirectiveDecls);
|
|
};
|
|
if (ParseOpenMPSimpleVarList(OMPD_declare_target, Callback, true))
|
|
break;
|
|
|
|
// Consume optional ','.
|
|
if (Tok.is(tok::comma))
|
|
ConsumeToken();
|
|
}
|
|
SkipUntil(tok::annot_pragma_openmp_end, StopBeforeMatch);
|
|
ConsumeAnyToken();
|
|
return DeclGroupPtrTy();
|
|
}
|
|
|
|
// Skip the last annot_pragma_openmp_end.
|
|
ConsumeAnyToken();
|
|
|
|
if (!Actions.ActOnStartOpenMPDeclareTargetDirective(DTLoc))
|
|
return DeclGroupPtrTy();
|
|
|
|
DKind = ParseOpenMPDirectiveKind(*this);
|
|
while (DKind != OMPD_end_declare_target && DKind != OMPD_declare_target &&
|
|
Tok.isNot(tok::eof) && Tok.isNot(tok::r_brace)) {
|
|
ParsedAttributesWithRange attrs(AttrFactory);
|
|
MaybeParseCXX11Attributes(attrs);
|
|
ParseExternalDeclaration(attrs);
|
|
if (Tok.isAnnotation() && Tok.is(tok::annot_pragma_openmp)) {
|
|
TentativeParsingAction TPA(*this);
|
|
ConsumeAnnotationToken();
|
|
DKind = ParseOpenMPDirectiveKind(*this);
|
|
if (DKind != OMPD_end_declare_target)
|
|
TPA.Revert();
|
|
else
|
|
TPA.Commit();
|
|
}
|
|
}
|
|
|
|
if (DKind == OMPD_end_declare_target) {
|
|
ConsumeAnyToken();
|
|
if (Tok.isNot(tok::annot_pragma_openmp_end)) {
|
|
Diag(Tok, diag::warn_omp_extra_tokens_at_eol)
|
|
<< getOpenMPDirectiveName(OMPD_end_declare_target);
|
|
SkipUntil(tok::annot_pragma_openmp_end, StopBeforeMatch);
|
|
}
|
|
// Skip the last annot_pragma_openmp_end.
|
|
ConsumeAnyToken();
|
|
} else {
|
|
Diag(Tok, diag::err_expected_end_declare_target);
|
|
Diag(DTLoc, diag::note_matching) << "'#pragma omp declare target'";
|
|
}
|
|
Actions.ActOnFinishOpenMPDeclareTargetDirective();
|
|
return DeclGroupPtrTy();
|
|
}
|
|
case OMPD_unknown:
|
|
Diag(Tok, diag::err_omp_unknown_directive);
|
|
break;
|
|
case OMPD_parallel:
|
|
case OMPD_simd:
|
|
case OMPD_task:
|
|
case OMPD_taskyield:
|
|
case OMPD_barrier:
|
|
case OMPD_taskwait:
|
|
case OMPD_taskgroup:
|
|
case OMPD_flush:
|
|
case OMPD_for:
|
|
case OMPD_for_simd:
|
|
case OMPD_sections:
|
|
case OMPD_section:
|
|
case OMPD_single:
|
|
case OMPD_master:
|
|
case OMPD_ordered:
|
|
case OMPD_critical:
|
|
case OMPD_parallel_for:
|
|
case OMPD_parallel_for_simd:
|
|
case OMPD_parallel_sections:
|
|
case OMPD_atomic:
|
|
case OMPD_target:
|
|
case OMPD_teams:
|
|
case OMPD_cancellation_point:
|
|
case OMPD_cancel:
|
|
case OMPD_target_data:
|
|
case OMPD_target_enter_data:
|
|
case OMPD_target_exit_data:
|
|
case OMPD_target_parallel:
|
|
case OMPD_target_parallel_for:
|
|
case OMPD_taskloop:
|
|
case OMPD_taskloop_simd:
|
|
case OMPD_distribute:
|
|
case OMPD_end_declare_target:
|
|
case OMPD_target_update:
|
|
case OMPD_distribute_parallel_for:
|
|
case OMPD_distribute_parallel_for_simd:
|
|
case OMPD_distribute_simd:
|
|
case OMPD_target_parallel_for_simd:
|
|
case OMPD_target_simd:
|
|
case OMPD_teams_distribute:
|
|
case OMPD_teams_distribute_simd:
|
|
case OMPD_teams_distribute_parallel_for_simd:
|
|
case OMPD_teams_distribute_parallel_for:
|
|
case OMPD_target_teams:
|
|
case OMPD_target_teams_distribute:
|
|
case OMPD_target_teams_distribute_parallel_for:
|
|
case OMPD_target_teams_distribute_parallel_for_simd:
|
|
case OMPD_target_teams_distribute_simd:
|
|
Diag(Tok, diag::err_omp_unexpected_directive)
|
|
<< getOpenMPDirectiveName(DKind);
|
|
break;
|
|
}
|
|
while (Tok.isNot(tok::annot_pragma_openmp_end))
|
|
ConsumeAnyToken();
|
|
ConsumeAnyToken();
|
|
return nullptr;
|
|
}
|
|
|
|
/// \brief Parsing of declarative or executable OpenMP directives.
|
|
///
|
|
/// threadprivate-directive:
|
|
/// annot_pragma_openmp 'threadprivate' simple-variable-list
|
|
/// annot_pragma_openmp_end
|
|
///
|
|
/// declare-reduction-directive:
|
|
/// annot_pragma_openmp 'declare' 'reduction' '(' <reduction_id> ':'
|
|
/// <type> {',' <type>} ':' <expression> ')' ['initializer' '('
|
|
/// ('omp_priv' '=' <expression>|<function_call>) ')']
|
|
/// annot_pragma_openmp_end
|
|
///
|
|
/// executable-directive:
|
|
/// annot_pragma_openmp 'parallel' | 'simd' | 'for' | 'sections' |
|
|
/// 'section' | 'single' | 'master' | 'critical' [ '(' <name> ')' ] |
|
|
/// 'parallel for' | 'parallel sections' | 'task' | 'taskyield' |
|
|
/// 'barrier' | 'taskwait' | 'flush' | 'ordered' | 'atomic' |
|
|
/// 'for simd' | 'parallel for simd' | 'target' | 'target data' |
|
|
/// 'taskgroup' | 'teams' | 'taskloop' | 'taskloop simd' |
|
|
/// 'distribute' | 'target enter data' | 'target exit data' |
|
|
/// 'target parallel' | 'target parallel for' |
|
|
/// 'target update' | 'distribute parallel for' |
|
|
/// 'distribute paralle for simd' | 'distribute simd' |
|
|
/// 'target parallel for simd' | 'target simd' |
|
|
/// 'teams distribute' | 'teams distribute simd' |
|
|
/// 'teams distribute parallel for simd' |
|
|
/// 'teams distribute parallel for' | 'target teams' |
|
|
/// 'target teams distribute' |
|
|
/// 'target teams distribute parallel for' |
|
|
/// 'target teams distribute parallel for simd' |
|
|
/// 'target teams distribute simd' {clause}
|
|
/// annot_pragma_openmp_end
|
|
///
|
|
StmtResult Parser::ParseOpenMPDeclarativeOrExecutableDirective(
|
|
AllowedConstructsKind Allowed) {
|
|
assert(Tok.is(tok::annot_pragma_openmp) && "Not an OpenMP directive!");
|
|
ParenBraceBracketBalancer BalancerRAIIObj(*this);
|
|
SmallVector<OMPClause *, 5> Clauses;
|
|
SmallVector<llvm::PointerIntPair<OMPClause *, 1, bool>, OMPC_unknown + 1>
|
|
FirstClauses(OMPC_unknown + 1);
|
|
unsigned ScopeFlags =
|
|
Scope::FnScope | Scope::DeclScope | Scope::OpenMPDirectiveScope;
|
|
SourceLocation Loc = ConsumeAnnotationToken(), EndLoc;
|
|
auto DKind = ParseOpenMPDirectiveKind(*this);
|
|
OpenMPDirectiveKind CancelRegion = OMPD_unknown;
|
|
// Name of critical directive.
|
|
DeclarationNameInfo DirName;
|
|
StmtResult Directive = StmtError();
|
|
bool HasAssociatedStatement = true;
|
|
bool FlushHasClause = false;
|
|
|
|
switch (DKind) {
|
|
case OMPD_threadprivate: {
|
|
if (Allowed != ACK_Any) {
|
|
Diag(Tok, diag::err_omp_immediate_directive)
|
|
<< getOpenMPDirectiveName(DKind) << 0;
|
|
}
|
|
ConsumeToken();
|
|
ThreadprivateListParserHelper Helper(this);
|
|
if (!ParseOpenMPSimpleVarList(OMPD_threadprivate, Helper, false)) {
|
|
// The last seen token is annot_pragma_openmp_end - need to check for
|
|
// extra tokens.
|
|
if (Tok.isNot(tok::annot_pragma_openmp_end)) {
|
|
Diag(Tok, diag::warn_omp_extra_tokens_at_eol)
|
|
<< getOpenMPDirectiveName(OMPD_threadprivate);
|
|
SkipUntil(tok::annot_pragma_openmp_end, StopBeforeMatch);
|
|
}
|
|
DeclGroupPtrTy Res = Actions.ActOnOpenMPThreadprivateDirective(
|
|
Loc, Helper.getIdentifiers());
|
|
Directive = Actions.ActOnDeclStmt(Res, Loc, Tok.getLocation());
|
|
}
|
|
SkipUntil(tok::annot_pragma_openmp_end);
|
|
break;
|
|
}
|
|
case OMPD_declare_reduction:
|
|
ConsumeToken();
|
|
if (auto Res = ParseOpenMPDeclareReductionDirective(/*AS=*/AS_none)) {
|
|
// The last seen token is annot_pragma_openmp_end - need to check for
|
|
// extra tokens.
|
|
if (Tok.isNot(tok::annot_pragma_openmp_end)) {
|
|
Diag(Tok, diag::warn_omp_extra_tokens_at_eol)
|
|
<< getOpenMPDirectiveName(OMPD_declare_reduction);
|
|
while (Tok.isNot(tok::annot_pragma_openmp_end))
|
|
ConsumeAnyToken();
|
|
}
|
|
ConsumeAnyToken();
|
|
Directive = Actions.ActOnDeclStmt(Res, Loc, Tok.getLocation());
|
|
} else
|
|
SkipUntil(tok::annot_pragma_openmp_end);
|
|
break;
|
|
case OMPD_flush:
|
|
if (PP.LookAhead(0).is(tok::l_paren)) {
|
|
FlushHasClause = true;
|
|
// Push copy of the current token back to stream to properly parse
|
|
// pseudo-clause OMPFlushClause.
|
|
PP.EnterToken(Tok);
|
|
}
|
|
LLVM_FALLTHROUGH;
|
|
case OMPD_taskyield:
|
|
case OMPD_barrier:
|
|
case OMPD_taskwait:
|
|
case OMPD_cancellation_point:
|
|
case OMPD_cancel:
|
|
case OMPD_target_enter_data:
|
|
case OMPD_target_exit_data:
|
|
case OMPD_target_update:
|
|
if (Allowed == ACK_StatementsOpenMPNonStandalone) {
|
|
Diag(Tok, diag::err_omp_immediate_directive)
|
|
<< getOpenMPDirectiveName(DKind) << 0;
|
|
}
|
|
HasAssociatedStatement = false;
|
|
// Fall through for further analysis.
|
|
LLVM_FALLTHROUGH;
|
|
case OMPD_parallel:
|
|
case OMPD_simd:
|
|
case OMPD_for:
|
|
case OMPD_for_simd:
|
|
case OMPD_sections:
|
|
case OMPD_single:
|
|
case OMPD_section:
|
|
case OMPD_master:
|
|
case OMPD_critical:
|
|
case OMPD_parallel_for:
|
|
case OMPD_parallel_for_simd:
|
|
case OMPD_parallel_sections:
|
|
case OMPD_task:
|
|
case OMPD_ordered:
|
|
case OMPD_atomic:
|
|
case OMPD_target:
|
|
case OMPD_teams:
|
|
case OMPD_taskgroup:
|
|
case OMPD_target_data:
|
|
case OMPD_target_parallel:
|
|
case OMPD_target_parallel_for:
|
|
case OMPD_taskloop:
|
|
case OMPD_taskloop_simd:
|
|
case OMPD_distribute:
|
|
case OMPD_distribute_parallel_for:
|
|
case OMPD_distribute_parallel_for_simd:
|
|
case OMPD_distribute_simd:
|
|
case OMPD_target_parallel_for_simd:
|
|
case OMPD_target_simd:
|
|
case OMPD_teams_distribute:
|
|
case OMPD_teams_distribute_simd:
|
|
case OMPD_teams_distribute_parallel_for_simd:
|
|
case OMPD_teams_distribute_parallel_for:
|
|
case OMPD_target_teams:
|
|
case OMPD_target_teams_distribute:
|
|
case OMPD_target_teams_distribute_parallel_for:
|
|
case OMPD_target_teams_distribute_parallel_for_simd:
|
|
case OMPD_target_teams_distribute_simd: {
|
|
ConsumeToken();
|
|
// Parse directive name of the 'critical' directive if any.
|
|
if (DKind == OMPD_critical) {
|
|
BalancedDelimiterTracker T(*this, tok::l_paren,
|
|
tok::annot_pragma_openmp_end);
|
|
if (!T.consumeOpen()) {
|
|
if (Tok.isAnyIdentifier()) {
|
|
DirName =
|
|
DeclarationNameInfo(Tok.getIdentifierInfo(), Tok.getLocation());
|
|
ConsumeAnyToken();
|
|
} else {
|
|
Diag(Tok, diag::err_omp_expected_identifier_for_critical);
|
|
}
|
|
T.consumeClose();
|
|
}
|
|
} else if (DKind == OMPD_cancellation_point || DKind == OMPD_cancel) {
|
|
CancelRegion = ParseOpenMPDirectiveKind(*this);
|
|
if (Tok.isNot(tok::annot_pragma_openmp_end))
|
|
ConsumeToken();
|
|
}
|
|
|
|
if (isOpenMPLoopDirective(DKind))
|
|
ScopeFlags |= Scope::OpenMPLoopDirectiveScope;
|
|
if (isOpenMPSimdDirective(DKind))
|
|
ScopeFlags |= Scope::OpenMPSimdDirectiveScope;
|
|
ParseScope OMPDirectiveScope(this, ScopeFlags);
|
|
Actions.StartOpenMPDSABlock(DKind, DirName, Actions.getCurScope(), Loc);
|
|
|
|
while (Tok.isNot(tok::annot_pragma_openmp_end)) {
|
|
OpenMPClauseKind CKind =
|
|
Tok.isAnnotation()
|
|
? OMPC_unknown
|
|
: FlushHasClause ? OMPC_flush
|
|
: getOpenMPClauseKind(PP.getSpelling(Tok));
|
|
Actions.StartOpenMPClause(CKind);
|
|
FlushHasClause = false;
|
|
OMPClause *Clause =
|
|
ParseOpenMPClause(DKind, CKind, !FirstClauses[CKind].getInt());
|
|
FirstClauses[CKind].setInt(true);
|
|
if (Clause) {
|
|
FirstClauses[CKind].setPointer(Clause);
|
|
Clauses.push_back(Clause);
|
|
}
|
|
|
|
// Skip ',' if any.
|
|
if (Tok.is(tok::comma))
|
|
ConsumeToken();
|
|
Actions.EndOpenMPClause();
|
|
}
|
|
// End location of the directive.
|
|
EndLoc = Tok.getLocation();
|
|
// Consume final annot_pragma_openmp_end.
|
|
ConsumeAnnotationToken();
|
|
|
|
// OpenMP [2.13.8, ordered Construct, Syntax]
|
|
// If the depend clause is specified, the ordered construct is a stand-alone
|
|
// directive.
|
|
if (DKind == OMPD_ordered && FirstClauses[OMPC_depend].getInt()) {
|
|
if (Allowed == ACK_StatementsOpenMPNonStandalone) {
|
|
Diag(Loc, diag::err_omp_immediate_directive)
|
|
<< getOpenMPDirectiveName(DKind) << 1
|
|
<< getOpenMPClauseName(OMPC_depend);
|
|
}
|
|
HasAssociatedStatement = false;
|
|
}
|
|
|
|
StmtResult AssociatedStmt;
|
|
if (HasAssociatedStatement) {
|
|
// The body is a block scope like in Lambdas and Blocks.
|
|
Sema::CompoundScopeRAII CompoundScope(Actions);
|
|
Actions.ActOnOpenMPRegionStart(DKind, getCurScope());
|
|
Actions.ActOnStartOfCompoundStmt();
|
|
// Parse statement
|
|
AssociatedStmt = ParseStatement();
|
|
Actions.ActOnFinishOfCompoundStmt();
|
|
AssociatedStmt = Actions.ActOnOpenMPRegionEnd(AssociatedStmt, Clauses);
|
|
}
|
|
Directive = Actions.ActOnOpenMPExecutableDirective(
|
|
DKind, DirName, CancelRegion, Clauses, AssociatedStmt.get(), Loc,
|
|
EndLoc);
|
|
|
|
// Exit scope.
|
|
Actions.EndOpenMPDSABlock(Directive.get());
|
|
OMPDirectiveScope.Exit();
|
|
break;
|
|
}
|
|
case OMPD_declare_simd:
|
|
case OMPD_declare_target:
|
|
case OMPD_end_declare_target:
|
|
Diag(Tok, diag::err_omp_unexpected_directive)
|
|
<< getOpenMPDirectiveName(DKind);
|
|
SkipUntil(tok::annot_pragma_openmp_end);
|
|
break;
|
|
case OMPD_unknown:
|
|
Diag(Tok, diag::err_omp_unknown_directive);
|
|
SkipUntil(tok::annot_pragma_openmp_end);
|
|
break;
|
|
}
|
|
return Directive;
|
|
}
|
|
|
|
// Parses simple list:
|
|
// simple-variable-list:
|
|
// '(' id-expression {, id-expression} ')'
|
|
//
|
|
bool Parser::ParseOpenMPSimpleVarList(
|
|
OpenMPDirectiveKind Kind,
|
|
const llvm::function_ref<void(CXXScopeSpec &, DeclarationNameInfo)> &
|
|
Callback,
|
|
bool AllowScopeSpecifier) {
|
|
// Parse '('.
|
|
BalancedDelimiterTracker T(*this, tok::l_paren, tok::annot_pragma_openmp_end);
|
|
if (T.expectAndConsume(diag::err_expected_lparen_after,
|
|
getOpenMPDirectiveName(Kind)))
|
|
return true;
|
|
bool IsCorrect = true;
|
|
bool NoIdentIsFound = true;
|
|
|
|
// Read tokens while ')' or annot_pragma_openmp_end is not found.
|
|
while (Tok.isNot(tok::r_paren) && Tok.isNot(tok::annot_pragma_openmp_end)) {
|
|
CXXScopeSpec SS;
|
|
SourceLocation TemplateKWLoc;
|
|
UnqualifiedId Name;
|
|
// Read var name.
|
|
Token PrevTok = Tok;
|
|
NoIdentIsFound = false;
|
|
|
|
if (AllowScopeSpecifier && getLangOpts().CPlusPlus &&
|
|
ParseOptionalCXXScopeSpecifier(SS, nullptr, false)) {
|
|
IsCorrect = false;
|
|
SkipUntil(tok::comma, tok::r_paren, tok::annot_pragma_openmp_end,
|
|
StopBeforeMatch);
|
|
} else if (ParseUnqualifiedId(SS, false, false, false, false, nullptr,
|
|
TemplateKWLoc, Name)) {
|
|
IsCorrect = false;
|
|
SkipUntil(tok::comma, tok::r_paren, tok::annot_pragma_openmp_end,
|
|
StopBeforeMatch);
|
|
} else if (Tok.isNot(tok::comma) && Tok.isNot(tok::r_paren) &&
|
|
Tok.isNot(tok::annot_pragma_openmp_end)) {
|
|
IsCorrect = false;
|
|
SkipUntil(tok::comma, tok::r_paren, tok::annot_pragma_openmp_end,
|
|
StopBeforeMatch);
|
|
Diag(PrevTok.getLocation(), diag::err_expected)
|
|
<< tok::identifier
|
|
<< SourceRange(PrevTok.getLocation(), PrevTokLocation);
|
|
} else {
|
|
Callback(SS, Actions.GetNameFromUnqualifiedId(Name));
|
|
}
|
|
// Consume ','.
|
|
if (Tok.is(tok::comma)) {
|
|
ConsumeToken();
|
|
}
|
|
}
|
|
|
|
if (NoIdentIsFound) {
|
|
Diag(Tok, diag::err_expected) << tok::identifier;
|
|
IsCorrect = false;
|
|
}
|
|
|
|
// Parse ')'.
|
|
IsCorrect = !T.consumeClose() && IsCorrect;
|
|
|
|
return !IsCorrect;
|
|
}
|
|
|
|
/// \brief Parsing of OpenMP clauses.
|
|
///
|
|
/// clause:
|
|
/// if-clause | final-clause | num_threads-clause | safelen-clause |
|
|
/// default-clause | private-clause | firstprivate-clause | shared-clause
|
|
/// | linear-clause | aligned-clause | collapse-clause |
|
|
/// lastprivate-clause | reduction-clause | proc_bind-clause |
|
|
/// schedule-clause | copyin-clause | copyprivate-clause | untied-clause |
|
|
/// mergeable-clause | flush-clause | read-clause | write-clause |
|
|
/// update-clause | capture-clause | seq_cst-clause | device-clause |
|
|
/// simdlen-clause | threads-clause | simd-clause | num_teams-clause |
|
|
/// thread_limit-clause | priority-clause | grainsize-clause |
|
|
/// nogroup-clause | num_tasks-clause | hint-clause | to-clause |
|
|
/// from-clause | is_device_ptr-clause
|
|
///
|
|
OMPClause *Parser::ParseOpenMPClause(OpenMPDirectiveKind DKind,
|
|
OpenMPClauseKind CKind, bool FirstClause) {
|
|
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;
|
|
}
|
|
LLVM_FALLTHROUGH;
|
|
|
|
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:
|
|
case OMPC_to:
|
|
case OMPC_from:
|
|
case OMPC_use_device_ptr:
|
|
case OMPC_is_device_ptr:
|
|
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:
|
|
case OMPC_uniform:
|
|
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;
|
|
}
|
|
|
|
/// Parses simple expression in parens for single-expression clauses of OpenMP
|
|
/// constructs.
|
|
/// \param RLoc Returned location of right paren.
|
|
ExprResult Parser::ParseOpenMPParensExpr(StringRef ClauseName,
|
|
SourceLocation &RLoc) {
|
|
BalancedDelimiterTracker T(*this, tok::l_paren, tok::annot_pragma_openmp_end);
|
|
if (T.expectAndConsume(diag::err_expected_lparen_after, ClauseName.data()))
|
|
return ExprError();
|
|
|
|
SourceLocation ELoc = Tok.getLocation();
|
|
ExprResult LHS(ParseCastExpression(
|
|
/*isUnaryExpression=*/false, /*isAddressOfOperand=*/false, NotTypeCast));
|
|
ExprResult Val(ParseRHSOfBinaryExpression(LHS, prec::Conditional));
|
|
Val = Actions.ActOnFinishFullExpr(Val.get(), ELoc);
|
|
|
|
// Parse ')'.
|
|
T.consumeClose();
|
|
|
|
RLoc = T.getCloseLocation();
|
|
return Val;
|
|
}
|
|
|
|
/// \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();
|
|
SourceLocation LLoc = Tok.getLocation();
|
|
SourceLocation RLoc;
|
|
|
|
ExprResult Val = ParseOpenMPParensExpr(getOpenMPClauseName(Kind), RLoc);
|
|
|
|
if (Val.isInvalid())
|
|
return nullptr;
|
|
|
|
return Actions.ActOnOpenMPSingleExprClause(Kind, Val.get(), Loc, LLoc, RLoc);
|
|
}
|
|
|
|
/// \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());
|
|
TentativeParsingAction TPA(*this);
|
|
Arg.push_back(ParseOpenMPDirectiveKind(*this));
|
|
if (Arg.back() != OMPD_unknown) {
|
|
ConsumeToken();
|
|
if (Tok.is(tok::colon) && getLangOpts().OpenMP > 40) {
|
|
TPA.Commit();
|
|
DelimLoc = ConsumeToken();
|
|
} else {
|
|
TPA.Revert();
|
|
Arg.back() = OMPD_unknown;
|
|
}
|
|
} else
|
|
TPA.Revert();
|
|
}
|
|
|
|
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,
|
|
/*AllowDeductionGuide*/ false,
|
|
nullptr, TemplateKWLoc, ReductionId);
|
|
}
|
|
|
|
/// Parses clauses with list.
|
|
bool Parser::ParseOpenMPVarList(OpenMPDirectiveKind DKind,
|
|
OpenMPClauseKind Kind,
|
|
SmallVectorImpl<Expr *> &Vars,
|
|
OpenMPVarListDataTy &Data) {
|
|
UnqualifiedId UnqualifiedReductionId;
|
|
bool InvalidReductionId = false;
|
|
bool MapTypeModifierSpecified = false;
|
|
|
|
// Parse '('.
|
|
BalancedDelimiterTracker T(*this, tok::l_paren, tok::annot_pragma_openmp_end);
|
|
if (T.expectAndConsume(diag::err_expected_lparen_after,
|
|
getOpenMPClauseName(Kind)))
|
|
return true;
|
|
|
|
bool NeedRParenForLinear = false;
|
|
BalancedDelimiterTracker LinearT(*this, tok::l_paren,
|
|
tok::annot_pragma_openmp_end);
|
|
// Handle reduction-identifier for reduction clause.
|
|
if (Kind == OMPC_reduction) {
|
|
ColonProtectionRAIIObject ColonRAII(*this);
|
|
if (getLangOpts().CPlusPlus)
|
|
ParseOptionalCXXScopeSpecifier(Data.ReductionIdScopeSpec,
|
|
/*ObjectType=*/nullptr,
|
|
/*EnteringContext=*/false);
|
|
InvalidReductionId = ParseReductionId(*this, Data.ReductionIdScopeSpec,
|
|
UnqualifiedReductionId);
|
|
if (InvalidReductionId) {
|
|
SkipUntil(tok::colon, tok::r_paren, tok::annot_pragma_openmp_end,
|
|
StopBeforeMatch);
|
|
}
|
|
if (Tok.is(tok::colon))
|
|
Data.ColonLoc = ConsumeToken();
|
|
else
|
|
Diag(Tok, diag::warn_pragma_expected_colon) << "reduction identifier";
|
|
if (!InvalidReductionId)
|
|
Data.ReductionId =
|
|
Actions.GetNameFromUnqualifiedId(UnqualifiedReductionId);
|
|
} else if (Kind == OMPC_depend) {
|
|
// Handle dependency type for depend clause.
|
|
ColonProtectionRAIIObject ColonRAII(*this);
|
|
Data.DepKind =
|
|
static_cast<OpenMPDependClauseKind>(getOpenMPSimpleClauseType(
|
|
Kind, Tok.is(tok::identifier) ? PP.getSpelling(Tok) : ""));
|
|
Data.DepLinMapLoc = Tok.getLocation();
|
|
|
|
if (Data.DepKind == OMPC_DEPEND_unknown) {
|
|
SkipUntil(tok::colon, tok::r_paren, tok::annot_pragma_openmp_end,
|
|
StopBeforeMatch);
|
|
} else {
|
|
ConsumeToken();
|
|
// Special processing for depend(source) clause.
|
|
if (DKind == OMPD_ordered && Data.DepKind == OMPC_DEPEND_source) {
|
|
// Parse ')'.
|
|
T.consumeClose();
|
|
return false;
|
|
}
|
|
}
|
|
if (Tok.is(tok::colon))
|
|
Data.ColonLoc = ConsumeToken();
|
|
else {
|
|
Diag(Tok, DKind == OMPD_ordered ? diag::warn_pragma_expected_colon_r_paren
|
|
: diag::warn_pragma_expected_colon)
|
|
<< "dependency type";
|
|
}
|
|
} else if (Kind == OMPC_linear) {
|
|
// Try to parse modifier if any.
|
|
if (Tok.is(tok::identifier) && PP.LookAhead(0).is(tok::l_paren)) {
|
|
Data.LinKind = static_cast<OpenMPLinearClauseKind>(
|
|
getOpenMPSimpleClauseType(Kind, PP.getSpelling(Tok)));
|
|
Data.DepLinMapLoc = ConsumeToken();
|
|
LinearT.consumeOpen();
|
|
NeedRParenForLinear = true;
|
|
}
|
|
} else if (Kind == OMPC_map) {
|
|
// Handle map type for map clause.
|
|
ColonProtectionRAIIObject ColonRAII(*this);
|
|
|
|
/// The map clause modifier token can be either a identifier or the C++
|
|
/// delete keyword.
|
|
auto &&IsMapClauseModifierToken = [](const Token &Tok) -> bool {
|
|
return Tok.isOneOf(tok::identifier, tok::kw_delete);
|
|
};
|
|
|
|
// The first identifier may be a list item, a map-type or a
|
|
// map-type-modifier. The map modifier can also be delete which has the same
|
|
// spelling of the C++ delete keyword.
|
|
Data.MapType =
|
|
IsMapClauseModifierToken(Tok)
|
|
? static_cast<OpenMPMapClauseKind>(
|
|
getOpenMPSimpleClauseType(Kind, PP.getSpelling(Tok)))
|
|
: OMPC_MAP_unknown;
|
|
Data.DepLinMapLoc = Tok.getLocation();
|
|
bool ColonExpected = false;
|
|
|
|
if (IsMapClauseModifierToken(Tok)) {
|
|
if (PP.LookAhead(0).is(tok::colon)) {
|
|
if (Data.MapType == OMPC_MAP_unknown)
|
|
Diag(Tok, diag::err_omp_unknown_map_type);
|
|
else if (Data.MapType == OMPC_MAP_always)
|
|
Diag(Tok, diag::err_omp_map_type_missing);
|
|
ConsumeToken();
|
|
} else if (PP.LookAhead(0).is(tok::comma)) {
|
|
if (IsMapClauseModifierToken(PP.LookAhead(1)) &&
|
|
PP.LookAhead(2).is(tok::colon)) {
|
|
Data.MapTypeModifier = Data.MapType;
|
|
if (Data.MapTypeModifier != OMPC_MAP_always) {
|
|
Diag(Tok, diag::err_omp_unknown_map_type_modifier);
|
|
Data.MapTypeModifier = OMPC_MAP_unknown;
|
|
} else
|
|
MapTypeModifierSpecified = true;
|
|
|
|
ConsumeToken();
|
|
ConsumeToken();
|
|
|
|
Data.MapType =
|
|
IsMapClauseModifierToken(Tok)
|
|
? static_cast<OpenMPMapClauseKind>(
|
|
getOpenMPSimpleClauseType(Kind, PP.getSpelling(Tok)))
|
|
: OMPC_MAP_unknown;
|
|
if (Data.MapType == OMPC_MAP_unknown ||
|
|
Data.MapType == OMPC_MAP_always)
|
|
Diag(Tok, diag::err_omp_unknown_map_type);
|
|
ConsumeToken();
|
|
} else {
|
|
Data.MapType = OMPC_MAP_tofrom;
|
|
Data.IsMapTypeImplicit = true;
|
|
}
|
|
} else if (IsMapClauseModifierToken(PP.LookAhead(0))) {
|
|
if (PP.LookAhead(1).is(tok::colon)) {
|
|
Data.MapTypeModifier = Data.MapType;
|
|
if (Data.MapTypeModifier != OMPC_MAP_always) {
|
|
Diag(Tok, diag::err_omp_unknown_map_type_modifier);
|
|
Data.MapTypeModifier = OMPC_MAP_unknown;
|
|
} else
|
|
MapTypeModifierSpecified = true;
|
|
|
|
ConsumeToken();
|
|
|
|
Data.MapType =
|
|
IsMapClauseModifierToken(Tok)
|
|
? static_cast<OpenMPMapClauseKind>(
|
|
getOpenMPSimpleClauseType(Kind, PP.getSpelling(Tok)))
|
|
: OMPC_MAP_unknown;
|
|
if (Data.MapType == OMPC_MAP_unknown ||
|
|
Data.MapType == OMPC_MAP_always)
|
|
Diag(Tok, diag::err_omp_unknown_map_type);
|
|
ConsumeToken();
|
|
} else {
|
|
Data.MapType = OMPC_MAP_tofrom;
|
|
Data.IsMapTypeImplicit = true;
|
|
}
|
|
} else {
|
|
Data.MapType = OMPC_MAP_tofrom;
|
|
Data.IsMapTypeImplicit = true;
|
|
}
|
|
} else {
|
|
Data.MapType = OMPC_MAP_tofrom;
|
|
Data.IsMapTypeImplicit = true;
|
|
}
|
|
|
|
if (Tok.is(tok::colon))
|
|
Data.ColonLoc = ConsumeToken();
|
|
else if (ColonExpected)
|
|
Diag(Tok, diag::warn_pragma_expected_colon) << "map type";
|
|
}
|
|
|
|
bool IsComma =
|
|
(Kind != OMPC_reduction && Kind != OMPC_depend && Kind != OMPC_map) ||
|
|
(Kind == OMPC_reduction && !InvalidReductionId) ||
|
|
(Kind == OMPC_map && Data.MapType != OMPC_MAP_unknown &&
|
|
(!MapTypeModifierSpecified ||
|
|
Data.MapTypeModifier == OMPC_MAP_always)) ||
|
|
(Kind == OMPC_depend && Data.DepKind != OMPC_DEPEND_unknown);
|
|
const bool MayHaveTail = (Kind == OMPC_linear || Kind == OMPC_aligned);
|
|
while (IsComma || (Tok.isNot(tok::r_paren) && Tok.isNot(tok::colon) &&
|
|
Tok.isNot(tok::annot_pragma_openmp_end))) {
|
|
ColonProtectionRAIIObject ColonRAII(*this, MayHaveTail);
|
|
// Parse variable
|
|
ExprResult VarExpr =
|
|
Actions.CorrectDelayedTyposInExpr(ParseAssignmentExpression());
|
|
if (VarExpr.isUsable())
|
|
Vars.push_back(VarExpr.get());
|
|
else {
|
|
SkipUntil(tok::comma, tok::r_paren, tok::annot_pragma_openmp_end,
|
|
StopBeforeMatch);
|
|
}
|
|
// Skip ',' if any
|
|
IsComma = Tok.is(tok::comma);
|
|
if (IsComma)
|
|
ConsumeToken();
|
|
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)
|
|
<< ((Kind == OMPC_flush) ? getOpenMPDirectiveName(OMPD_flush)
|
|
: getOpenMPClauseName(Kind))
|
|
<< (Kind == OMPC_flush);
|
|
}
|
|
|
|
// Parse ')' for linear clause with modifier.
|
|
if (NeedRParenForLinear)
|
|
LinearT.consumeClose();
|
|
|
|
// Parse ':' linear-step (or ':' alignment).
|
|
const bool MustHaveTail = MayHaveTail && Tok.is(tok::colon);
|
|
if (MustHaveTail) {
|
|
Data.ColonLoc = Tok.getLocation();
|
|
SourceLocation ELoc = ConsumeToken();
|
|
ExprResult Tail = ParseAssignmentExpression();
|
|
Tail = Actions.ActOnFinishFullExpr(Tail.get(), ELoc);
|
|
if (Tail.isUsable())
|
|
Data.TailExpr = Tail.get();
|
|
else
|
|
SkipUntil(tok::comma, tok::r_paren, tok::annot_pragma_openmp_end,
|
|
StopBeforeMatch);
|
|
}
|
|
|
|
// Parse ')'.
|
|
T.consumeClose();
|
|
if ((Kind == OMPC_depend && Data.DepKind != OMPC_DEPEND_unknown &&
|
|
Vars.empty()) ||
|
|
(Kind != OMPC_depend && Kind != OMPC_map && Vars.empty()) ||
|
|
(MustHaveTail && !Data.TailExpr) || InvalidReductionId)
|
|
return true;
|
|
return false;
|
|
}
|
|
|
|
/// \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 ')';
|
|
/// to-clause:
|
|
/// 'to' '(' list ')'
|
|
/// from-clause:
|
|
/// 'from' '(' list ')'
|
|
/// use_device_ptr-clause:
|
|
/// 'use_device_ptr' '(' list ')'
|
|
/// is_device_ptr-clause:
|
|
/// 'is_device_ptr' '(' 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,
|
|
OpenMPClauseKind Kind) {
|
|
SourceLocation Loc = Tok.getLocation();
|
|
SourceLocation LOpen = ConsumeToken();
|
|
SmallVector<Expr *, 4> Vars;
|
|
OpenMPVarListDataTy Data;
|
|
|
|
if (ParseOpenMPVarList(DKind, Kind, Vars, Data))
|
|
return nullptr;
|
|
|
|
return Actions.ActOnOpenMPVarListClause(
|
|
Kind, Vars, Data.TailExpr, Loc, LOpen, Data.ColonLoc, Tok.getLocation(),
|
|
Data.ReductionIdScopeSpec, Data.ReductionId, Data.DepKind, Data.LinKind,
|
|
Data.MapTypeModifier, Data.MapType, Data.IsMapTypeImplicit,
|
|
Data.DepLinMapLoc);
|
|
}
|
|
|