clang  8.0.0svn
ParseOpenMP.cpp
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1 //===--- ParseOpenMP.cpp - OpenMP directives parsing ----------------------===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 /// \file
10 /// This file implements parsing of all OpenMP directives and clauses.
11 ///
12 //===----------------------------------------------------------------------===//
13 
14 #include "clang/AST/ASTContext.h"
15 #include "clang/AST/StmtOpenMP.h"
17 #include "clang/Parse/Parser.h"
19 #include "clang/Sema/Scope.h"
20 #include "llvm/ADT/PointerIntPair.h"
21 
22 using namespace clang;
23 
24 //===----------------------------------------------------------------------===//
25 // OpenMP declarative directives.
26 //===----------------------------------------------------------------------===//
27 
28 namespace {
30  OMPD_cancellation = OMPD_unknown + 1,
31  OMPD_data,
32  OMPD_declare,
33  OMPD_end,
34  OMPD_end_declare,
35  OMPD_enter,
36  OMPD_exit,
37  OMPD_point,
38  OMPD_reduction,
39  OMPD_target_enter,
40  OMPD_target_exit,
41  OMPD_update,
42  OMPD_distribute_parallel,
43  OMPD_teams_distribute_parallel,
44  OMPD_target_teams_distribute_parallel
45 };
46 
47 class ThreadprivateListParserHelper final {
48  SmallVector<Expr *, 4> Identifiers;
49  Parser *P;
50 
51 public:
52  ThreadprivateListParserHelper(Parser *P) : P(P) {}
53  void operator()(CXXScopeSpec &SS, DeclarationNameInfo NameInfo) {
54  ExprResult Res =
55  P->getActions().ActOnOpenMPIdExpression(P->getCurScope(), SS, NameInfo);
56  if (Res.isUsable())
57  Identifiers.push_back(Res.get());
58  }
59  llvm::ArrayRef<Expr *> getIdentifiers() const { return Identifiers; }
60 };
61 } // namespace
62 
63 // Map token string to extended OMP token kind that are
64 // OpenMPDirectiveKind + OpenMPDirectiveKindEx.
65 static unsigned getOpenMPDirectiveKindEx(StringRef S) {
66  auto DKind = getOpenMPDirectiveKind(S);
67  if (DKind != OMPD_unknown)
68  return DKind;
69 
70  return llvm::StringSwitch<unsigned>(S)
71  .Case("cancellation", OMPD_cancellation)
72  .Case("data", OMPD_data)
73  .Case("declare", OMPD_declare)
74  .Case("end", OMPD_end)
75  .Case("enter", OMPD_enter)
76  .Case("exit", OMPD_exit)
77  .Case("point", OMPD_point)
78  .Case("reduction", OMPD_reduction)
79  .Case("update", OMPD_update)
80  .Default(OMPD_unknown);
81 }
82 
84  // Array of foldings: F[i][0] F[i][1] ===> F[i][2].
85  // E.g.: OMPD_for OMPD_simd ===> OMPD_for_simd
86  // TODO: add other combined directives in topological order.
87  static const unsigned F[][3] = {
88  {OMPD_cancellation, OMPD_point, OMPD_cancellation_point},
89  {OMPD_declare, OMPD_reduction, OMPD_declare_reduction},
90  {OMPD_declare, OMPD_simd, OMPD_declare_simd},
91  {OMPD_declare, OMPD_target, OMPD_declare_target},
92  {OMPD_distribute, OMPD_parallel, OMPD_distribute_parallel},
93  {OMPD_distribute_parallel, OMPD_for, OMPD_distribute_parallel_for},
94  {OMPD_distribute_parallel_for, OMPD_simd,
95  OMPD_distribute_parallel_for_simd},
96  {OMPD_distribute, OMPD_simd, OMPD_distribute_simd},
97  {OMPD_end, OMPD_declare, OMPD_end_declare},
98  {OMPD_end_declare, OMPD_target, OMPD_end_declare_target},
99  {OMPD_target, OMPD_data, OMPD_target_data},
100  {OMPD_target, OMPD_enter, OMPD_target_enter},
101  {OMPD_target, OMPD_exit, OMPD_target_exit},
102  {OMPD_target, OMPD_update, OMPD_target_update},
103  {OMPD_target_enter, OMPD_data, OMPD_target_enter_data},
104  {OMPD_target_exit, OMPD_data, OMPD_target_exit_data},
105  {OMPD_for, OMPD_simd, OMPD_for_simd},
106  {OMPD_parallel, OMPD_for, OMPD_parallel_for},
107  {OMPD_parallel_for, OMPD_simd, OMPD_parallel_for_simd},
108  {OMPD_parallel, OMPD_sections, OMPD_parallel_sections},
109  {OMPD_taskloop, OMPD_simd, OMPD_taskloop_simd},
110  {OMPD_target, OMPD_parallel, OMPD_target_parallel},
111  {OMPD_target, OMPD_simd, OMPD_target_simd},
112  {OMPD_target_parallel, OMPD_for, OMPD_target_parallel_for},
113  {OMPD_target_parallel_for, OMPD_simd, OMPD_target_parallel_for_simd},
114  {OMPD_teams, OMPD_distribute, OMPD_teams_distribute},
115  {OMPD_teams_distribute, OMPD_simd, OMPD_teams_distribute_simd},
116  {OMPD_teams_distribute, OMPD_parallel, OMPD_teams_distribute_parallel},
117  {OMPD_teams_distribute_parallel, OMPD_for,
118  OMPD_teams_distribute_parallel_for},
119  {OMPD_teams_distribute_parallel_for, OMPD_simd,
120  OMPD_teams_distribute_parallel_for_simd},
121  {OMPD_target, OMPD_teams, OMPD_target_teams},
122  {OMPD_target_teams, OMPD_distribute, OMPD_target_teams_distribute},
123  {OMPD_target_teams_distribute, OMPD_parallel,
124  OMPD_target_teams_distribute_parallel},
125  {OMPD_target_teams_distribute, OMPD_simd,
126  OMPD_target_teams_distribute_simd},
127  {OMPD_target_teams_distribute_parallel, OMPD_for,
128  OMPD_target_teams_distribute_parallel_for},
129  {OMPD_target_teams_distribute_parallel_for, OMPD_simd,
130  OMPD_target_teams_distribute_parallel_for_simd}};
131  enum { CancellationPoint = 0, DeclareReduction = 1, TargetData = 2 };
132  Token Tok = P.getCurToken();
133  unsigned DKind =
134  Tok.isAnnotation()
135  ? static_cast<unsigned>(OMPD_unknown)
137  if (DKind == OMPD_unknown)
138  return OMPD_unknown;
139 
140  for (unsigned I = 0; I < llvm::array_lengthof(F); ++I) {
141  if (DKind != F[I][0])
142  continue;
143 
144  Tok = P.getPreprocessor().LookAhead(0);
145  unsigned SDKind =
146  Tok.isAnnotation()
147  ? static_cast<unsigned>(OMPD_unknown)
149  if (SDKind == OMPD_unknown)
150  continue;
151 
152  if (SDKind == F[I][1]) {
153  P.ConsumeToken();
154  DKind = F[I][2];
155  }
156  }
157  return DKind < OMPD_unknown ? static_cast<OpenMPDirectiveKind>(DKind)
158  : OMPD_unknown;
159 }
160 
162  Token Tok = P.getCurToken();
163  Sema &Actions = P.getActions();
165  // Allow to use 'operator' keyword for C++ operators
166  bool WithOperator = false;
167  if (Tok.is(tok::kw_operator)) {
168  P.ConsumeToken();
169  Tok = P.getCurToken();
170  WithOperator = true;
171  }
172  switch (Tok.getKind()) {
173  case tok::plus: // '+'
174  OOK = OO_Plus;
175  break;
176  case tok::minus: // '-'
177  OOK = OO_Minus;
178  break;
179  case tok::star: // '*'
180  OOK = OO_Star;
181  break;
182  case tok::amp: // '&'
183  OOK = OO_Amp;
184  break;
185  case tok::pipe: // '|'
186  OOK = OO_Pipe;
187  break;
188  case tok::caret: // '^'
189  OOK = OO_Caret;
190  break;
191  case tok::ampamp: // '&&'
192  OOK = OO_AmpAmp;
193  break;
194  case tok::pipepipe: // '||'
195  OOK = OO_PipePipe;
196  break;
197  case tok::identifier: // identifier
198  if (!WithOperator)
199  break;
200  LLVM_FALLTHROUGH;
201  default:
202  P.Diag(Tok.getLocation(), diag::err_omp_expected_reduction_identifier);
203  P.SkipUntil(tok::colon, tok::r_paren, tok::annot_pragma_openmp_end,
205  return DeclarationName();
206  }
207  P.ConsumeToken();
208  auto &DeclNames = Actions.getASTContext().DeclarationNames;
209  return OOK == OO_None ? DeclNames.getIdentifier(Tok.getIdentifierInfo())
210  : DeclNames.getCXXOperatorName(OOK);
211 }
212 
213 /// Parse 'omp declare reduction' construct.
214 ///
215 /// declare-reduction-directive:
216 /// annot_pragma_openmp 'declare' 'reduction'
217 /// '(' <reduction_id> ':' <type> {',' <type>} ':' <expression> ')'
218 /// ['initializer' '(' ('omp_priv' '=' <expression>)|<function_call> ')']
219 /// annot_pragma_openmp_end
220 /// <reduction_id> is either a base language identifier or one of the following
221 /// operators: '+', '-', '*', '&', '|', '^', '&&' and '||'.
222 ///
224 Parser::ParseOpenMPDeclareReductionDirective(AccessSpecifier AS) {
225  // Parse '('.
226  BalancedDelimiterTracker T(*this, tok::l_paren, tok::annot_pragma_openmp_end);
227  if (T.expectAndConsume(diag::err_expected_lparen_after,
228  getOpenMPDirectiveName(OMPD_declare_reduction))) {
229  SkipUntil(tok::annot_pragma_openmp_end, StopBeforeMatch);
230  return DeclGroupPtrTy();
231  }
232 
234  if (Name.isEmpty() && Tok.is(tok::annot_pragma_openmp_end))
235  return DeclGroupPtrTy();
236 
237  // Consume ':'.
238  bool IsCorrect = !ExpectAndConsume(tok::colon);
239 
240  if (!IsCorrect && Tok.is(tok::annot_pragma_openmp_end))
241  return DeclGroupPtrTy();
242 
243  IsCorrect = IsCorrect && !Name.isEmpty();
244 
245  if (Tok.is(tok::colon) || Tok.is(tok::annot_pragma_openmp_end)) {
246  Diag(Tok.getLocation(), diag::err_expected_type);
247  IsCorrect = false;
248  }
249 
250  if (!IsCorrect && Tok.is(tok::annot_pragma_openmp_end))
251  return DeclGroupPtrTy();
252 
254  // Parse list of types until ':' token.
255  do {
256  ColonProtectionRAIIObject ColonRAII(*this);
257  SourceRange Range;
258  TypeResult TR =
259  ParseTypeName(&Range, DeclaratorContext::PrototypeContext, AS);
260  if (TR.isUsable()) {
261  QualType ReductionType =
262  Actions.ActOnOpenMPDeclareReductionType(Range.getBegin(), TR);
263  if (!ReductionType.isNull()) {
264  ReductionTypes.push_back(
265  std::make_pair(ReductionType, Range.getBegin()));
266  }
267  } else {
268  SkipUntil(tok::comma, tok::colon, tok::annot_pragma_openmp_end,
269  StopBeforeMatch);
270  }
271 
272  if (Tok.is(tok::colon) || Tok.is(tok::annot_pragma_openmp_end))
273  break;
274 
275  // Consume ','.
276  if (ExpectAndConsume(tok::comma)) {
277  IsCorrect = false;
278  if (Tok.is(tok::annot_pragma_openmp_end)) {
279  Diag(Tok.getLocation(), diag::err_expected_type);
280  return DeclGroupPtrTy();
281  }
282  }
283  } while (Tok.isNot(tok::annot_pragma_openmp_end));
284 
285  if (ReductionTypes.empty()) {
286  SkipUntil(tok::annot_pragma_openmp_end, StopBeforeMatch);
287  return DeclGroupPtrTy();
288  }
289 
290  if (!IsCorrect && Tok.is(tok::annot_pragma_openmp_end))
291  return DeclGroupPtrTy();
292 
293  // Consume ':'.
294  if (ExpectAndConsume(tok::colon))
295  IsCorrect = false;
296 
297  if (Tok.is(tok::annot_pragma_openmp_end)) {
298  Diag(Tok.getLocation(), diag::err_expected_expression);
299  return DeclGroupPtrTy();
300  }
301 
302  DeclGroupPtrTy DRD = Actions.ActOnOpenMPDeclareReductionDirectiveStart(
303  getCurScope(), Actions.getCurLexicalContext(), Name, ReductionTypes, AS);
304 
305  // Parse <combiner> expression and then parse initializer if any for each
306  // correct type.
307  unsigned I = 0, E = ReductionTypes.size();
308  for (Decl *D : DRD.get()) {
309  TentativeParsingAction TPA(*this);
310  ParseScope OMPDRScope(this, Scope::FnScope | Scope::DeclScope |
313  // Parse <combiner> expression.
314  Actions.ActOnOpenMPDeclareReductionCombinerStart(getCurScope(), D);
315  ExprResult CombinerResult =
316  Actions.ActOnFinishFullExpr(ParseAssignmentExpression().get(),
317  D->getLocation(), /*DiscardedValue=*/true);
318  Actions.ActOnOpenMPDeclareReductionCombinerEnd(D, CombinerResult.get());
319 
320  if (CombinerResult.isInvalid() && Tok.isNot(tok::r_paren) &&
321  Tok.isNot(tok::annot_pragma_openmp_end)) {
322  TPA.Commit();
323  IsCorrect = false;
324  break;
325  }
326  IsCorrect = !T.consumeClose() && IsCorrect && CombinerResult.isUsable();
327  ExprResult InitializerResult;
328  if (Tok.isNot(tok::annot_pragma_openmp_end)) {
329  // Parse <initializer> expression.
330  if (Tok.is(tok::identifier) &&
331  Tok.getIdentifierInfo()->isStr("initializer")) {
332  ConsumeToken();
333  } else {
334  Diag(Tok.getLocation(), diag::err_expected) << "'initializer'";
335  TPA.Commit();
336  IsCorrect = false;
337  break;
338  }
339  // Parse '('.
340  BalancedDelimiterTracker T(*this, tok::l_paren,
341  tok::annot_pragma_openmp_end);
342  IsCorrect =
343  !T.expectAndConsume(diag::err_expected_lparen_after, "initializer") &&
344  IsCorrect;
345  if (Tok.isNot(tok::annot_pragma_openmp_end)) {
346  ParseScope OMPDRScope(this, Scope::FnScope | Scope::DeclScope |
349  // Parse expression.
350  VarDecl *OmpPrivParm =
351  Actions.ActOnOpenMPDeclareReductionInitializerStart(getCurScope(),
352  D);
353  // Check if initializer is omp_priv <init_expr> or something else.
354  if (Tok.is(tok::identifier) &&
355  Tok.getIdentifierInfo()->isStr("omp_priv")) {
356  if (Actions.getLangOpts().CPlusPlus) {
357  InitializerResult = Actions.ActOnFinishFullExpr(
358  ParseAssignmentExpression().get(), D->getLocation(),
359  /*DiscardedValue=*/true);
360  } else {
361  ConsumeToken();
362  ParseOpenMPReductionInitializerForDecl(OmpPrivParm);
363  }
364  } else {
365  InitializerResult = Actions.ActOnFinishFullExpr(
366  ParseAssignmentExpression().get(), D->getLocation(),
367  /*DiscardedValue=*/true);
368  }
369  Actions.ActOnOpenMPDeclareReductionInitializerEnd(
370  D, InitializerResult.get(), OmpPrivParm);
371  if (InitializerResult.isInvalid() && Tok.isNot(tok::r_paren) &&
372  Tok.isNot(tok::annot_pragma_openmp_end)) {
373  TPA.Commit();
374  IsCorrect = false;
375  break;
376  }
377  IsCorrect =
378  !T.consumeClose() && IsCorrect && !InitializerResult.isInvalid();
379  }
380  }
381 
382  ++I;
383  // Revert parsing if not the last type, otherwise accept it, we're done with
384  // parsing.
385  if (I != E)
386  TPA.Revert();
387  else
388  TPA.Commit();
389  }
390  return Actions.ActOnOpenMPDeclareReductionDirectiveEnd(getCurScope(), DRD,
391  IsCorrect);
392 }
393 
394 void Parser::ParseOpenMPReductionInitializerForDecl(VarDecl *OmpPrivParm) {
395  // Parse declarator '=' initializer.
396  // If a '==' or '+=' is found, suggest a fixit to '='.
397  if (isTokenEqualOrEqualTypo()) {
398  ConsumeToken();
399 
400  if (Tok.is(tok::code_completion)) {
401  Actions.CodeCompleteInitializer(getCurScope(), OmpPrivParm);
402  Actions.FinalizeDeclaration(OmpPrivParm);
403  cutOffParsing();
404  return;
405  }
406 
407  ExprResult Init(ParseInitializer());
408 
409  if (Init.isInvalid()) {
410  SkipUntil(tok::r_paren, tok::annot_pragma_openmp_end, StopBeforeMatch);
411  Actions.ActOnInitializerError(OmpPrivParm);
412  } else {
413  Actions.AddInitializerToDecl(OmpPrivParm, Init.get(),
414  /*DirectInit=*/false);
415  }
416  } else if (Tok.is(tok::l_paren)) {
417  // Parse C++ direct initializer: '(' expression-list ')'
418  BalancedDelimiterTracker T(*this, tok::l_paren);
419  T.consumeOpen();
420 
421  ExprVector Exprs;
422  CommaLocsTy CommaLocs;
423 
424  SourceLocation LParLoc = T.getOpenLocation();
425  if (ParseExpressionList(
426  Exprs, CommaLocs, [this, OmpPrivParm, LParLoc, &Exprs] {
427  QualType PreferredType = Actions.ProduceConstructorSignatureHelp(
428  getCurScope(),
429  OmpPrivParm->getType()->getCanonicalTypeInternal(),
430  OmpPrivParm->getLocation(), Exprs, LParLoc);
431  CalledSignatureHelp = true;
432  Actions.CodeCompleteExpression(getCurScope(), PreferredType);
433  })) {
434  if (PP.isCodeCompletionReached() && !CalledSignatureHelp) {
435  Actions.ProduceConstructorSignatureHelp(
436  getCurScope(), OmpPrivParm->getType()->getCanonicalTypeInternal(),
437  OmpPrivParm->getLocation(), Exprs, LParLoc);
438  CalledSignatureHelp = true;
439  }
440  Actions.ActOnInitializerError(OmpPrivParm);
441  SkipUntil(tok::r_paren, tok::annot_pragma_openmp_end, StopBeforeMatch);
442  } else {
443  // Match the ')'.
444  SourceLocation RLoc = Tok.getLocation();
445  if (!T.consumeClose())
446  RLoc = T.getCloseLocation();
447 
448  assert(!Exprs.empty() && Exprs.size() - 1 == CommaLocs.size() &&
449  "Unexpected number of commas!");
450 
451  ExprResult Initializer =
452  Actions.ActOnParenListExpr(T.getOpenLocation(), RLoc, Exprs);
453  Actions.AddInitializerToDecl(OmpPrivParm, Initializer.get(),
454  /*DirectInit=*/true);
455  }
456  } else if (getLangOpts().CPlusPlus11 && Tok.is(tok::l_brace)) {
457  // Parse C++0x braced-init-list.
458  Diag(Tok, diag::warn_cxx98_compat_generalized_initializer_lists);
459 
460  ExprResult Init(ParseBraceInitializer());
461 
462  if (Init.isInvalid()) {
463  Actions.ActOnInitializerError(OmpPrivParm);
464  } else {
465  Actions.AddInitializerToDecl(OmpPrivParm, Init.get(),
466  /*DirectInit=*/true);
467  }
468  } else {
469  Actions.ActOnUninitializedDecl(OmpPrivParm);
470  }
471 }
472 
473 namespace {
474 /// RAII that recreates function context for correct parsing of clauses of
475 /// 'declare simd' construct.
476 /// OpenMP, 2.8.2 declare simd Construct
477 /// The expressions appearing in the clauses of this directive are evaluated in
478 /// the scope of the arguments of the function declaration or definition.
479 class FNContextRAII final {
480  Parser &P;
481  Sema::CXXThisScopeRAII *ThisScope;
482  Parser::ParseScope *TempScope;
483  Parser::ParseScope *FnScope;
484  bool HasTemplateScope = false;
485  bool HasFunScope = false;
486  FNContextRAII() = delete;
487  FNContextRAII(const FNContextRAII &) = delete;
488  FNContextRAII &operator=(const FNContextRAII &) = delete;
489 
490 public:
491  FNContextRAII(Parser &P, Parser::DeclGroupPtrTy Ptr) : P(P) {
492  Decl *D = *Ptr.get().begin();
493  NamedDecl *ND = dyn_cast<NamedDecl>(D);
494  RecordDecl *RD = dyn_cast_or_null<RecordDecl>(D->getDeclContext());
495  Sema &Actions = P.getActions();
496 
497  // Allow 'this' within late-parsed attributes.
498  ThisScope = new Sema::CXXThisScopeRAII(Actions, RD, /*TypeQuals=*/0,
499  ND && ND->isCXXInstanceMember());
500 
501  // If the Decl is templatized, add template parameters to scope.
502  HasTemplateScope = D->isTemplateDecl();
503  TempScope =
504  new Parser::ParseScope(&P, Scope::TemplateParamScope, HasTemplateScope);
505  if (HasTemplateScope)
506  Actions.ActOnReenterTemplateScope(Actions.getCurScope(), D);
507 
508  // If the Decl is on a function, add function parameters to the scope.
509  HasFunScope = D->isFunctionOrFunctionTemplate();
510  FnScope = new Parser::ParseScope(
512  HasFunScope);
513  if (HasFunScope)
514  Actions.ActOnReenterFunctionContext(Actions.getCurScope(), D);
515  }
516  ~FNContextRAII() {
517  if (HasFunScope) {
519  FnScope->Exit(); // Pop scope, and remove Decls from IdResolver
520  }
521  if (HasTemplateScope)
522  TempScope->Exit();
523  delete FnScope;
524  delete TempScope;
525  delete ThisScope;
526  }
527 };
528 } // namespace
529 
530 /// Parses clauses for 'declare simd' directive.
531 /// clause:
532 /// 'inbranch' | 'notinbranch'
533 /// 'simdlen' '(' <expr> ')'
534 /// { 'uniform' '(' <argument_list> ')' }
535 /// { 'aligned '(' <argument_list> [ ':' <alignment> ] ')' }
536 /// { 'linear '(' <argument_list> [ ':' <step> ] ')' }
538  Parser &P, OMPDeclareSimdDeclAttr::BranchStateTy &BS, ExprResult &SimdLen,
540  SmallVectorImpl<Expr *> &Alignments, SmallVectorImpl<Expr *> &Linears,
541  SmallVectorImpl<unsigned> &LinModifiers, SmallVectorImpl<Expr *> &Steps) {
542  SourceRange BSRange;
543  const Token &Tok = P.getCurToken();
544  bool IsError = false;
545  while (Tok.isNot(tok::annot_pragma_openmp_end)) {
546  if (Tok.isNot(tok::identifier))
547  break;
548  OMPDeclareSimdDeclAttr::BranchStateTy Out;
549  IdentifierInfo *II = Tok.getIdentifierInfo();
550  StringRef ClauseName = II->getName();
551  // Parse 'inranch|notinbranch' clauses.
552  if (OMPDeclareSimdDeclAttr::ConvertStrToBranchStateTy(ClauseName, Out)) {
553  if (BS != OMPDeclareSimdDeclAttr::BS_Undefined && BS != Out) {
554  P.Diag(Tok, diag::err_omp_declare_simd_inbranch_notinbranch)
555  << ClauseName
556  << OMPDeclareSimdDeclAttr::ConvertBranchStateTyToStr(BS) << BSRange;
557  IsError = true;
558  }
559  BS = Out;
560  BSRange = SourceRange(Tok.getLocation(), Tok.getEndLoc());
561  P.ConsumeToken();
562  } else if (ClauseName.equals("simdlen")) {
563  if (SimdLen.isUsable()) {
564  P.Diag(Tok, diag::err_omp_more_one_clause)
565  << getOpenMPDirectiveName(OMPD_declare_simd) << ClauseName << 0;
566  IsError = true;
567  }
568  P.ConsumeToken();
569  SourceLocation RLoc;
570  SimdLen = P.ParseOpenMPParensExpr(ClauseName, RLoc);
571  if (SimdLen.isInvalid())
572  IsError = true;
573  } else {
574  OpenMPClauseKind CKind = getOpenMPClauseKind(ClauseName);
575  if (CKind == OMPC_uniform || CKind == OMPC_aligned ||
576  CKind == OMPC_linear) {
578  SmallVectorImpl<Expr *> *Vars = &Uniforms;
579  if (CKind == OMPC_aligned)
580  Vars = &Aligneds;
581  else if (CKind == OMPC_linear)
582  Vars = &Linears;
583 
584  P.ConsumeToken();
585  if (P.ParseOpenMPVarList(OMPD_declare_simd,
586  getOpenMPClauseKind(ClauseName), *Vars, Data))
587  IsError = true;
588  if (CKind == OMPC_aligned) {
589  Alignments.append(Aligneds.size() - Alignments.size(), Data.TailExpr);
590  } else if (CKind == OMPC_linear) {
592  Data.DepLinMapLoc))
593  Data.LinKind = OMPC_LINEAR_val;
594  LinModifiers.append(Linears.size() - LinModifiers.size(),
595  Data.LinKind);
596  Steps.append(Linears.size() - Steps.size(), Data.TailExpr);
597  }
598  } else
599  // TODO: add parsing of other clauses.
600  break;
601  }
602  // Skip ',' if any.
603  if (Tok.is(tok::comma))
604  P.ConsumeToken();
605  }
606  return IsError;
607 }
608 
609 /// Parse clauses for '#pragma omp declare simd'.
611 Parser::ParseOMPDeclareSimdClauses(Parser::DeclGroupPtrTy Ptr,
612  CachedTokens &Toks, SourceLocation Loc) {
613  PP.EnterToken(Tok);
614  PP.EnterTokenStream(Toks, /*DisableMacroExpansion=*/true);
615  // Consume the previously pushed token.
616  ConsumeAnyToken(/*ConsumeCodeCompletionTok=*/true);
617 
618  FNContextRAII FnContext(*this, Ptr);
619  OMPDeclareSimdDeclAttr::BranchStateTy BS =
620  OMPDeclareSimdDeclAttr::BS_Undefined;
621  ExprResult Simdlen;
622  SmallVector<Expr *, 4> Uniforms;
623  SmallVector<Expr *, 4> Aligneds;
624  SmallVector<Expr *, 4> Alignments;
625  SmallVector<Expr *, 4> Linears;
626  SmallVector<unsigned, 4> LinModifiers;
628  bool IsError =
629  parseDeclareSimdClauses(*this, BS, Simdlen, Uniforms, Aligneds,
630  Alignments, Linears, LinModifiers, Steps);
631  // Need to check for extra tokens.
632  if (Tok.isNot(tok::annot_pragma_openmp_end)) {
633  Diag(Tok, diag::warn_omp_extra_tokens_at_eol)
634  << getOpenMPDirectiveName(OMPD_declare_simd);
635  while (Tok.isNot(tok::annot_pragma_openmp_end))
636  ConsumeAnyToken();
637  }
638  // Skip the last annot_pragma_openmp_end.
639  SourceLocation EndLoc = ConsumeAnnotationToken();
640  if (IsError)
641  return Ptr;
642  return Actions.ActOnOpenMPDeclareSimdDirective(
643  Ptr, BS, Simdlen.get(), Uniforms, Aligneds, Alignments, Linears,
644  LinModifiers, Steps, SourceRange(Loc, EndLoc));
645 }
646 
647 /// Parsing of declarative OpenMP directives.
648 ///
649 /// threadprivate-directive:
650 /// annot_pragma_openmp 'threadprivate' simple-variable-list
651 /// annot_pragma_openmp_end
652 ///
653 /// declare-reduction-directive:
654 /// annot_pragma_openmp 'declare' 'reduction' [...]
655 /// annot_pragma_openmp_end
656 ///
657 /// declare-simd-directive:
658 /// annot_pragma_openmp 'declare simd' {<clause> [,]}
659 /// annot_pragma_openmp_end
660 /// <function declaration/definition>
661 ///
662 Parser::DeclGroupPtrTy Parser::ParseOpenMPDeclarativeDirectiveWithExtDecl(
663  AccessSpecifier &AS, ParsedAttributesWithRange &Attrs,
664  DeclSpec::TST TagType, Decl *Tag) {
665  assert(Tok.is(tok::annot_pragma_openmp) && "Not an OpenMP directive!");
666  ParenBraceBracketBalancer BalancerRAIIObj(*this);
667 
668  SourceLocation Loc = ConsumeAnnotationToken();
670 
671  switch (DKind) {
672  case OMPD_threadprivate: {
673  ConsumeToken();
674  ThreadprivateListParserHelper Helper(this);
675  if (!ParseOpenMPSimpleVarList(OMPD_threadprivate, Helper, true)) {
676  // The last seen token is annot_pragma_openmp_end - need to check for
677  // extra tokens.
678  if (Tok.isNot(tok::annot_pragma_openmp_end)) {
679  Diag(Tok, diag::warn_omp_extra_tokens_at_eol)
680  << getOpenMPDirectiveName(OMPD_threadprivate);
681  SkipUntil(tok::annot_pragma_openmp_end, StopBeforeMatch);
682  }
683  // Skip the last annot_pragma_openmp_end.
684  ConsumeAnnotationToken();
685  return Actions.ActOnOpenMPThreadprivateDirective(Loc,
686  Helper.getIdentifiers());
687  }
688  break;
689  }
690  case OMPD_declare_reduction:
691  ConsumeToken();
692  if (DeclGroupPtrTy Res = ParseOpenMPDeclareReductionDirective(AS)) {
693  // The last seen token is annot_pragma_openmp_end - need to check for
694  // extra tokens.
695  if (Tok.isNot(tok::annot_pragma_openmp_end)) {
696  Diag(Tok, diag::warn_omp_extra_tokens_at_eol)
697  << getOpenMPDirectiveName(OMPD_declare_reduction);
698  while (Tok.isNot(tok::annot_pragma_openmp_end))
699  ConsumeAnyToken();
700  }
701  // Skip the last annot_pragma_openmp_end.
702  ConsumeAnnotationToken();
703  return Res;
704  }
705  break;
706  case OMPD_declare_simd: {
707  // The syntax is:
708  // { #pragma omp declare simd }
709  // <function-declaration-or-definition>
710  //
711  ConsumeToken();
712  CachedTokens Toks;
713  while(Tok.isNot(tok::annot_pragma_openmp_end)) {
714  Toks.push_back(Tok);
715  ConsumeAnyToken();
716  }
717  Toks.push_back(Tok);
718  ConsumeAnyToken();
719 
720  DeclGroupPtrTy Ptr;
721  if (Tok.is(tok::annot_pragma_openmp)) {
722  Ptr = ParseOpenMPDeclarativeDirectiveWithExtDecl(AS, Attrs, TagType, Tag);
723  } else if (Tok.isNot(tok::r_brace) && !isEofOrEom()) {
724  // Here we expect to see some function declaration.
725  if (AS == AS_none) {
727  MaybeParseCXX11Attributes(Attrs);
728  ParsingDeclSpec PDS(*this);
729  Ptr = ParseExternalDeclaration(Attrs, &PDS);
730  } else {
731  Ptr =
732  ParseCXXClassMemberDeclarationWithPragmas(AS, Attrs, TagType, Tag);
733  }
734  }
735  if (!Ptr) {
736  Diag(Loc, diag::err_omp_decl_in_declare_simd);
737  return DeclGroupPtrTy();
738  }
739  return ParseOMPDeclareSimdClauses(Ptr, Toks, Loc);
740  }
741  case OMPD_declare_target: {
742  SourceLocation DTLoc = ConsumeAnyToken();
743  if (Tok.isNot(tok::annot_pragma_openmp_end)) {
744  // OpenMP 4.5 syntax with list of entities.
745  Sema::NamedDeclSetType SameDirectiveDecls;
746  while (Tok.isNot(tok::annot_pragma_openmp_end)) {
747  OMPDeclareTargetDeclAttr::MapTypeTy MT =
748  OMPDeclareTargetDeclAttr::MT_To;
749  if (Tok.is(tok::identifier)) {
750  IdentifierInfo *II = Tok.getIdentifierInfo();
751  StringRef ClauseName = II->getName();
752  // Parse 'to|link' clauses.
753  if (!OMPDeclareTargetDeclAttr::ConvertStrToMapTypeTy(ClauseName,
754  MT)) {
755  Diag(Tok, diag::err_omp_declare_target_unexpected_clause)
756  << ClauseName;
757  break;
758  }
759  ConsumeToken();
760  }
761  auto &&Callback = [this, MT, &SameDirectiveDecls](
762  CXXScopeSpec &SS, DeclarationNameInfo NameInfo) {
763  Actions.ActOnOpenMPDeclareTargetName(getCurScope(), SS, NameInfo, MT,
764  SameDirectiveDecls);
765  };
766  if (ParseOpenMPSimpleVarList(OMPD_declare_target, Callback,
767  /*AllowScopeSpecifier=*/true))
768  break;
769 
770  // Consume optional ','.
771  if (Tok.is(tok::comma))
772  ConsumeToken();
773  }
774  SkipUntil(tok::annot_pragma_openmp_end, StopBeforeMatch);
775  ConsumeAnyToken();
776  SmallVector<Decl *, 4> Decls(SameDirectiveDecls.begin(),
777  SameDirectiveDecls.end());
778  if (Decls.empty())
779  return DeclGroupPtrTy();
780  return Actions.BuildDeclaratorGroup(Decls);
781  }
782 
783  // Skip the last annot_pragma_openmp_end.
784  ConsumeAnyToken();
785 
786  if (!Actions.ActOnStartOpenMPDeclareTargetDirective(DTLoc))
787  return DeclGroupPtrTy();
788 
790  DKind = parseOpenMPDirectiveKind(*this);
791  while (DKind != OMPD_end_declare_target && Tok.isNot(tok::eof) &&
792  Tok.isNot(tok::r_brace)) {
793  DeclGroupPtrTy Ptr;
794  // Here we expect to see some function declaration.
795  if (AS == AS_none) {
797  MaybeParseCXX11Attributes(Attrs);
798  ParsingDeclSpec PDS(*this);
799  Ptr = ParseExternalDeclaration(Attrs, &PDS);
800  } else {
801  Ptr =
802  ParseCXXClassMemberDeclarationWithPragmas(AS, Attrs, TagType, Tag);
803  }
804  if (Ptr) {
805  DeclGroupRef Ref = Ptr.get();
806  Decls.append(Ref.begin(), Ref.end());
807  }
808  if (Tok.isAnnotation() && Tok.is(tok::annot_pragma_openmp)) {
809  TentativeParsingAction TPA(*this);
810  ConsumeAnnotationToken();
811  DKind = parseOpenMPDirectiveKind(*this);
812  if (DKind != OMPD_end_declare_target)
813  TPA.Revert();
814  else
815  TPA.Commit();
816  }
817  }
818 
819  if (DKind == OMPD_end_declare_target) {
820  ConsumeAnyToken();
821  if (Tok.isNot(tok::annot_pragma_openmp_end)) {
822  Diag(Tok, diag::warn_omp_extra_tokens_at_eol)
823  << getOpenMPDirectiveName(OMPD_end_declare_target);
824  SkipUntil(tok::annot_pragma_openmp_end, StopBeforeMatch);
825  }
826  // Skip the last annot_pragma_openmp_end.
827  ConsumeAnyToken();
828  } else {
829  Diag(Tok, diag::err_expected_end_declare_target);
830  Diag(DTLoc, diag::note_matching) << "'#pragma omp declare target'";
831  }
832  Actions.ActOnFinishOpenMPDeclareTargetDirective();
833  return Actions.BuildDeclaratorGroup(Decls);
834  }
835  case OMPD_unknown:
836  Diag(Tok, diag::err_omp_unknown_directive);
837  break;
838  case OMPD_parallel:
839  case OMPD_simd:
840  case OMPD_task:
841  case OMPD_taskyield:
842  case OMPD_barrier:
843  case OMPD_taskwait:
844  case OMPD_taskgroup:
845  case OMPD_flush:
846  case OMPD_for:
847  case OMPD_for_simd:
848  case OMPD_sections:
849  case OMPD_section:
850  case OMPD_single:
851  case OMPD_master:
852  case OMPD_ordered:
853  case OMPD_critical:
854  case OMPD_parallel_for:
855  case OMPD_parallel_for_simd:
856  case OMPD_parallel_sections:
857  case OMPD_atomic:
858  case OMPD_target:
859  case OMPD_teams:
860  case OMPD_cancellation_point:
861  case OMPD_cancel:
862  case OMPD_target_data:
863  case OMPD_target_enter_data:
864  case OMPD_target_exit_data:
865  case OMPD_target_parallel:
866  case OMPD_target_parallel_for:
867  case OMPD_taskloop:
868  case OMPD_taskloop_simd:
869  case OMPD_distribute:
870  case OMPD_end_declare_target:
871  case OMPD_target_update:
872  case OMPD_distribute_parallel_for:
873  case OMPD_distribute_parallel_for_simd:
874  case OMPD_distribute_simd:
875  case OMPD_target_parallel_for_simd:
876  case OMPD_target_simd:
877  case OMPD_teams_distribute:
878  case OMPD_teams_distribute_simd:
879  case OMPD_teams_distribute_parallel_for_simd:
880  case OMPD_teams_distribute_parallel_for:
881  case OMPD_target_teams:
882  case OMPD_target_teams_distribute:
883  case OMPD_target_teams_distribute_parallel_for:
884  case OMPD_target_teams_distribute_parallel_for_simd:
885  case OMPD_target_teams_distribute_simd:
886  Diag(Tok, diag::err_omp_unexpected_directive)
887  << 1 << getOpenMPDirectiveName(DKind);
888  break;
889  }
890  while (Tok.isNot(tok::annot_pragma_openmp_end))
891  ConsumeAnyToken();
892  ConsumeAnyToken();
893  return nullptr;
894 }
895 
896 /// Parsing of declarative or executable OpenMP directives.
897 ///
898 /// threadprivate-directive:
899 /// annot_pragma_openmp 'threadprivate' simple-variable-list
900 /// annot_pragma_openmp_end
901 ///
902 /// declare-reduction-directive:
903 /// annot_pragma_openmp 'declare' 'reduction' '(' <reduction_id> ':'
904 /// <type> {',' <type>} ':' <expression> ')' ['initializer' '('
905 /// ('omp_priv' '=' <expression>|<function_call>) ')']
906 /// annot_pragma_openmp_end
907 ///
908 /// executable-directive:
909 /// annot_pragma_openmp 'parallel' | 'simd' | 'for' | 'sections' |
910 /// 'section' | 'single' | 'master' | 'critical' [ '(' <name> ')' ] |
911 /// 'parallel for' | 'parallel sections' | 'task' | 'taskyield' |
912 /// 'barrier' | 'taskwait' | 'flush' | 'ordered' | 'atomic' |
913 /// 'for simd' | 'parallel for simd' | 'target' | 'target data' |
914 /// 'taskgroup' | 'teams' | 'taskloop' | 'taskloop simd' |
915 /// 'distribute' | 'target enter data' | 'target exit data' |
916 /// 'target parallel' | 'target parallel for' |
917 /// 'target update' | 'distribute parallel for' |
918 /// 'distribute paralle for simd' | 'distribute simd' |
919 /// 'target parallel for simd' | 'target simd' |
920 /// 'teams distribute' | 'teams distribute simd' |
921 /// 'teams distribute parallel for simd' |
922 /// 'teams distribute parallel for' | 'target teams' |
923 /// 'target teams distribute' |
924 /// 'target teams distribute parallel for' |
925 /// 'target teams distribute parallel for simd' |
926 /// 'target teams distribute simd' {clause}
927 /// annot_pragma_openmp_end
928 ///
929 StmtResult Parser::ParseOpenMPDeclarativeOrExecutableDirective(
930  AllowedConstructsKind Allowed) {
931  assert(Tok.is(tok::annot_pragma_openmp) && "Not an OpenMP directive!");
932  ParenBraceBracketBalancer BalancerRAIIObj(*this);
935  FirstClauses(OMPC_unknown + 1);
936  unsigned ScopeFlags = Scope::FnScope | Scope::DeclScope |
938  SourceLocation Loc = ConsumeAnnotationToken(), EndLoc;
940  OpenMPDirectiveKind CancelRegion = OMPD_unknown;
941  // Name of critical directive.
942  DeclarationNameInfo DirName;
944  bool HasAssociatedStatement = true;
945  bool FlushHasClause = false;
946 
947  switch (DKind) {
948  case OMPD_threadprivate: {
949  if (Allowed != ACK_Any) {
950  Diag(Tok, diag::err_omp_immediate_directive)
951  << getOpenMPDirectiveName(DKind) << 0;
952  }
953  ConsumeToken();
954  ThreadprivateListParserHelper Helper(this);
955  if (!ParseOpenMPSimpleVarList(OMPD_threadprivate, Helper, false)) {
956  // The last seen token is annot_pragma_openmp_end - need to check for
957  // extra tokens.
958  if (Tok.isNot(tok::annot_pragma_openmp_end)) {
959  Diag(Tok, diag::warn_omp_extra_tokens_at_eol)
960  << getOpenMPDirectiveName(OMPD_threadprivate);
961  SkipUntil(tok::annot_pragma_openmp_end, StopBeforeMatch);
962  }
963  DeclGroupPtrTy Res = Actions.ActOnOpenMPThreadprivateDirective(
964  Loc, Helper.getIdentifiers());
965  Directive = Actions.ActOnDeclStmt(Res, Loc, Tok.getLocation());
966  }
967  SkipUntil(tok::annot_pragma_openmp_end);
968  break;
969  }
970  case OMPD_declare_reduction:
971  ConsumeToken();
972  if (DeclGroupPtrTy Res =
973  ParseOpenMPDeclareReductionDirective(/*AS=*/AS_none)) {
974  // The last seen token is annot_pragma_openmp_end - need to check for
975  // extra tokens.
976  if (Tok.isNot(tok::annot_pragma_openmp_end)) {
977  Diag(Tok, diag::warn_omp_extra_tokens_at_eol)
978  << getOpenMPDirectiveName(OMPD_declare_reduction);
979  while (Tok.isNot(tok::annot_pragma_openmp_end))
980  ConsumeAnyToken();
981  }
982  ConsumeAnyToken();
983  Directive = Actions.ActOnDeclStmt(Res, Loc, Tok.getLocation());
984  } else {
985  SkipUntil(tok::annot_pragma_openmp_end);
986  }
987  break;
988  case OMPD_flush:
989  if (PP.LookAhead(0).is(tok::l_paren)) {
990  FlushHasClause = true;
991  // Push copy of the current token back to stream to properly parse
992  // pseudo-clause OMPFlushClause.
993  PP.EnterToken(Tok);
994  }
995  LLVM_FALLTHROUGH;
996  case OMPD_taskyield:
997  case OMPD_barrier:
998  case OMPD_taskwait:
999  case OMPD_cancellation_point:
1000  case OMPD_cancel:
1001  case OMPD_target_enter_data:
1002  case OMPD_target_exit_data:
1003  case OMPD_target_update:
1004  if (Allowed == ACK_StatementsOpenMPNonStandalone) {
1005  Diag(Tok, diag::err_omp_immediate_directive)
1006  << getOpenMPDirectiveName(DKind) << 0;
1007  }
1008  HasAssociatedStatement = false;
1009  // Fall through for further analysis.
1010  LLVM_FALLTHROUGH;
1011  case OMPD_parallel:
1012  case OMPD_simd:
1013  case OMPD_for:
1014  case OMPD_for_simd:
1015  case OMPD_sections:
1016  case OMPD_single:
1017  case OMPD_section:
1018  case OMPD_master:
1019  case OMPD_critical:
1020  case OMPD_parallel_for:
1021  case OMPD_parallel_for_simd:
1022  case OMPD_parallel_sections:
1023  case OMPD_task:
1024  case OMPD_ordered:
1025  case OMPD_atomic:
1026  case OMPD_target:
1027  case OMPD_teams:
1028  case OMPD_taskgroup:
1029  case OMPD_target_data:
1030  case OMPD_target_parallel:
1031  case OMPD_target_parallel_for:
1032  case OMPD_taskloop:
1033  case OMPD_taskloop_simd:
1034  case OMPD_distribute:
1035  case OMPD_distribute_parallel_for:
1036  case OMPD_distribute_parallel_for_simd:
1037  case OMPD_distribute_simd:
1038  case OMPD_target_parallel_for_simd:
1039  case OMPD_target_simd:
1040  case OMPD_teams_distribute:
1041  case OMPD_teams_distribute_simd:
1042  case OMPD_teams_distribute_parallel_for_simd:
1043  case OMPD_teams_distribute_parallel_for:
1044  case OMPD_target_teams:
1045  case OMPD_target_teams_distribute:
1046  case OMPD_target_teams_distribute_parallel_for:
1047  case OMPD_target_teams_distribute_parallel_for_simd:
1048  case OMPD_target_teams_distribute_simd: {
1049  ConsumeToken();
1050  // Parse directive name of the 'critical' directive if any.
1051  if (DKind == OMPD_critical) {
1052  BalancedDelimiterTracker T(*this, tok::l_paren,
1053  tok::annot_pragma_openmp_end);
1054  if (!T.consumeOpen()) {
1055  if (Tok.isAnyIdentifier()) {
1056  DirName =
1057  DeclarationNameInfo(Tok.getIdentifierInfo(), Tok.getLocation());
1058  ConsumeAnyToken();
1059  } else {
1060  Diag(Tok, diag::err_omp_expected_identifier_for_critical);
1061  }
1062  T.consumeClose();
1063  }
1064  } else if (DKind == OMPD_cancellation_point || DKind == OMPD_cancel) {
1065  CancelRegion = parseOpenMPDirectiveKind(*this);
1066  if (Tok.isNot(tok::annot_pragma_openmp_end))
1067  ConsumeToken();
1068  }
1069 
1070  if (isOpenMPLoopDirective(DKind))
1071  ScopeFlags |= Scope::OpenMPLoopDirectiveScope;
1072  if (isOpenMPSimdDirective(DKind))
1073  ScopeFlags |= Scope::OpenMPSimdDirectiveScope;
1074  ParseScope OMPDirectiveScope(this, ScopeFlags);
1075  Actions.StartOpenMPDSABlock(DKind, DirName, Actions.getCurScope(), Loc);
1076 
1077  while (Tok.isNot(tok::annot_pragma_openmp_end)) {
1078  OpenMPClauseKind CKind =
1079  Tok.isAnnotation()
1080  ? OMPC_unknown
1081  : FlushHasClause ? OMPC_flush
1082  : getOpenMPClauseKind(PP.getSpelling(Tok));
1083  Actions.StartOpenMPClause(CKind);
1084  FlushHasClause = false;
1085  OMPClause *Clause =
1086  ParseOpenMPClause(DKind, CKind, !FirstClauses[CKind].getInt());
1087  FirstClauses[CKind].setInt(true);
1088  if (Clause) {
1089  FirstClauses[CKind].setPointer(Clause);
1090  Clauses.push_back(Clause);
1091  }
1092 
1093  // Skip ',' if any.
1094  if (Tok.is(tok::comma))
1095  ConsumeToken();
1096  Actions.EndOpenMPClause();
1097  }
1098  // End location of the directive.
1099  EndLoc = Tok.getLocation();
1100  // Consume final annot_pragma_openmp_end.
1101  ConsumeAnnotationToken();
1102 
1103  // OpenMP [2.13.8, ordered Construct, Syntax]
1104  // If the depend clause is specified, the ordered construct is a stand-alone
1105  // directive.
1106  if (DKind == OMPD_ordered && FirstClauses[OMPC_depend].getInt()) {
1107  if (Allowed == ACK_StatementsOpenMPNonStandalone) {
1108  Diag(Loc, diag::err_omp_immediate_directive)
1109  << getOpenMPDirectiveName(DKind) << 1
1110  << getOpenMPClauseName(OMPC_depend);
1111  }
1112  HasAssociatedStatement = false;
1113  }
1114 
1115  StmtResult AssociatedStmt;
1116  if (HasAssociatedStatement) {
1117  // The body is a block scope like in Lambdas and Blocks.
1118  Actions.ActOnOpenMPRegionStart(DKind, getCurScope());
1119  // FIXME: We create a bogus CompoundStmt scope to hold the contents of
1120  // the captured region. Code elsewhere assumes that any FunctionScopeInfo
1121  // should have at least one compound statement scope within it.
1122  AssociatedStmt = (Sema::CompoundScopeRAII(Actions), ParseStatement());
1123  AssociatedStmt = Actions.ActOnOpenMPRegionEnd(AssociatedStmt, Clauses);
1124  } else if (DKind == OMPD_target_update || DKind == OMPD_target_enter_data ||
1125  DKind == OMPD_target_exit_data) {
1126  Actions.ActOnOpenMPRegionStart(DKind, getCurScope());
1127  AssociatedStmt = (Sema::CompoundScopeRAII(Actions),
1128  Actions.ActOnCompoundStmt(Loc, Loc, llvm::None,
1129  /*isStmtExpr=*/false));
1130  AssociatedStmt = Actions.ActOnOpenMPRegionEnd(AssociatedStmt, Clauses);
1131  }
1132  Directive = Actions.ActOnOpenMPExecutableDirective(
1133  DKind, DirName, CancelRegion, Clauses, AssociatedStmt.get(), Loc,
1134  EndLoc);
1135 
1136  // Exit scope.
1137  Actions.EndOpenMPDSABlock(Directive.get());
1138  OMPDirectiveScope.Exit();
1139  break;
1140  }
1141  case OMPD_declare_simd:
1142  case OMPD_declare_target:
1143  case OMPD_end_declare_target:
1144  Diag(Tok, diag::err_omp_unexpected_directive)
1145  << 1 << getOpenMPDirectiveName(DKind);
1146  SkipUntil(tok::annot_pragma_openmp_end);
1147  break;
1148  case OMPD_unknown:
1149  Diag(Tok, diag::err_omp_unknown_directive);
1150  SkipUntil(tok::annot_pragma_openmp_end);
1151  break;
1152  }
1153  return Directive;
1154 }
1155 
1156 // Parses simple list:
1157 // simple-variable-list:
1158 // '(' id-expression {, id-expression} ')'
1159 //
1160 bool Parser::ParseOpenMPSimpleVarList(
1162  const llvm::function_ref<void(CXXScopeSpec &, DeclarationNameInfo)> &
1163  Callback,
1164  bool AllowScopeSpecifier) {
1165  // Parse '('.
1166  BalancedDelimiterTracker T(*this, tok::l_paren, tok::annot_pragma_openmp_end);
1167  if (T.expectAndConsume(diag::err_expected_lparen_after,
1169  return true;
1170  bool IsCorrect = true;
1171  bool NoIdentIsFound = true;
1172 
1173  // Read tokens while ')' or annot_pragma_openmp_end is not found.
1174  while (Tok.isNot(tok::r_paren) && Tok.isNot(tok::annot_pragma_openmp_end)) {
1175  CXXScopeSpec SS;
1176  UnqualifiedId Name;
1177  // Read var name.
1178  Token PrevTok = Tok;
1179  NoIdentIsFound = false;
1180 
1181  if (AllowScopeSpecifier && getLangOpts().CPlusPlus &&
1182  ParseOptionalCXXScopeSpecifier(SS, nullptr, false)) {
1183  IsCorrect = false;
1184  SkipUntil(tok::comma, tok::r_paren, tok::annot_pragma_openmp_end,
1185  StopBeforeMatch);
1186  } else if (ParseUnqualifiedId(SS, false, false, false, false, nullptr,
1187  nullptr, Name)) {
1188  IsCorrect = false;
1189  SkipUntil(tok::comma, tok::r_paren, tok::annot_pragma_openmp_end,
1190  StopBeforeMatch);
1191  } else if (Tok.isNot(tok::comma) && Tok.isNot(tok::r_paren) &&
1192  Tok.isNot(tok::annot_pragma_openmp_end)) {
1193  IsCorrect = false;
1194  SkipUntil(tok::comma, tok::r_paren, tok::annot_pragma_openmp_end,
1195  StopBeforeMatch);
1196  Diag(PrevTok.getLocation(), diag::err_expected)
1197  << tok::identifier
1198  << SourceRange(PrevTok.getLocation(), PrevTokLocation);
1199  } else {
1200  Callback(SS, Actions.GetNameFromUnqualifiedId(Name));
1201  }
1202  // Consume ','.
1203  if (Tok.is(tok::comma)) {
1204  ConsumeToken();
1205  }
1206  }
1207 
1208  if (NoIdentIsFound) {
1209  Diag(Tok, diag::err_expected) << tok::identifier;
1210  IsCorrect = false;
1211  }
1212 
1213  // Parse ')'.
1214  IsCorrect = !T.consumeClose() && IsCorrect;
1215 
1216  return !IsCorrect;
1217 }
1218 
1219 /// Parsing of OpenMP clauses.
1220 ///
1221 /// clause:
1222 /// if-clause | final-clause | num_threads-clause | safelen-clause |
1223 /// default-clause | private-clause | firstprivate-clause | shared-clause
1224 /// | linear-clause | aligned-clause | collapse-clause |
1225 /// lastprivate-clause | reduction-clause | proc_bind-clause |
1226 /// schedule-clause | copyin-clause | copyprivate-clause | untied-clause |
1227 /// mergeable-clause | flush-clause | read-clause | write-clause |
1228 /// update-clause | capture-clause | seq_cst-clause | device-clause |
1229 /// simdlen-clause | threads-clause | simd-clause | num_teams-clause |
1230 /// thread_limit-clause | priority-clause | grainsize-clause |
1231 /// nogroup-clause | num_tasks-clause | hint-clause | to-clause |
1232 /// from-clause | is_device_ptr-clause | task_reduction-clause |
1233 /// in_reduction-clause
1234 ///
1235 OMPClause *Parser::ParseOpenMPClause(OpenMPDirectiveKind DKind,
1236  OpenMPClauseKind CKind, bool FirstClause) {
1237  OMPClause *Clause = nullptr;
1238  bool ErrorFound = false;
1239  bool WrongDirective = false;
1240  // Check if clause is allowed for the given directive.
1241  if (CKind != OMPC_unknown && !isAllowedClauseForDirective(DKind, CKind)) {
1242  Diag(Tok, diag::err_omp_unexpected_clause) << getOpenMPClauseName(CKind)
1243  << getOpenMPDirectiveName(DKind);
1244  ErrorFound = true;
1245  WrongDirective = true;
1246  }
1247 
1248  switch (CKind) {
1249  case OMPC_final:
1250  case OMPC_num_threads:
1251  case OMPC_safelen:
1252  case OMPC_simdlen:
1253  case OMPC_collapse:
1254  case OMPC_ordered:
1255  case OMPC_device:
1256  case OMPC_num_teams:
1257  case OMPC_thread_limit:
1258  case OMPC_priority:
1259  case OMPC_grainsize:
1260  case OMPC_num_tasks:
1261  case OMPC_hint:
1262  // OpenMP [2.5, Restrictions]
1263  // At most one num_threads clause can appear on the directive.
1264  // OpenMP [2.8.1, simd construct, Restrictions]
1265  // Only one safelen clause can appear on a simd directive.
1266  // Only one simdlen clause can appear on a simd directive.
1267  // Only one collapse clause can appear on a simd directive.
1268  // OpenMP [2.9.1, target data construct, Restrictions]
1269  // At most one device clause can appear on the directive.
1270  // OpenMP [2.11.1, task Construct, Restrictions]
1271  // At most one if clause can appear on the directive.
1272  // At most one final clause can appear on the directive.
1273  // OpenMP [teams Construct, Restrictions]
1274  // At most one num_teams clause can appear on the directive.
1275  // At most one thread_limit clause can appear on the directive.
1276  // OpenMP [2.9.1, task Construct, Restrictions]
1277  // At most one priority clause can appear on the directive.
1278  // OpenMP [2.9.2, taskloop Construct, Restrictions]
1279  // At most one grainsize clause can appear on the directive.
1280  // OpenMP [2.9.2, taskloop Construct, Restrictions]
1281  // At most one num_tasks clause can appear on the directive.
1282  if (!FirstClause) {
1283  Diag(Tok, diag::err_omp_more_one_clause)
1284  << getOpenMPDirectiveName(DKind) << getOpenMPClauseName(CKind) << 0;
1285  ErrorFound = true;
1286  }
1287 
1288  if (CKind == OMPC_ordered && PP.LookAhead(/*N=*/0).isNot(tok::l_paren))
1289  Clause = ParseOpenMPClause(CKind, WrongDirective);
1290  else
1291  Clause = ParseOpenMPSingleExprClause(CKind, WrongDirective);
1292  break;
1293  case OMPC_default:
1294  case OMPC_proc_bind:
1295  // OpenMP [2.14.3.1, Restrictions]
1296  // Only a single default clause may be specified on a parallel, task or
1297  // teams directive.
1298  // OpenMP [2.5, parallel Construct, Restrictions]
1299  // At most one proc_bind clause can appear on the directive.
1300  if (!FirstClause) {
1301  Diag(Tok, diag::err_omp_more_one_clause)
1302  << getOpenMPDirectiveName(DKind) << getOpenMPClauseName(CKind) << 0;
1303  ErrorFound = true;
1304  }
1305 
1306  Clause = ParseOpenMPSimpleClause(CKind, WrongDirective);
1307  break;
1308  case OMPC_schedule:
1309  case OMPC_dist_schedule:
1310  case OMPC_defaultmap:
1311  // OpenMP [2.7.1, Restrictions, p. 3]
1312  // Only one schedule clause can appear on a loop directive.
1313  // OpenMP [2.10.4, Restrictions, p. 106]
1314  // At most one defaultmap clause can appear on the directive.
1315  if (!FirstClause) {
1316  Diag(Tok, diag::err_omp_more_one_clause)
1317  << getOpenMPDirectiveName(DKind) << getOpenMPClauseName(CKind) << 0;
1318  ErrorFound = true;
1319  }
1320  LLVM_FALLTHROUGH;
1321 
1322  case OMPC_if:
1323  Clause = ParseOpenMPSingleExprWithArgClause(CKind, WrongDirective);
1324  break;
1325  case OMPC_nowait:
1326  case OMPC_untied:
1327  case OMPC_mergeable:
1328  case OMPC_read:
1329  case OMPC_write:
1330  case OMPC_update:
1331  case OMPC_capture:
1332  case OMPC_seq_cst:
1333  case OMPC_threads:
1334  case OMPC_simd:
1335  case OMPC_nogroup:
1336  // OpenMP [2.7.1, Restrictions, p. 9]
1337  // Only one ordered clause can appear on a loop directive.
1338  // OpenMP [2.7.1, Restrictions, C/C++, p. 4]
1339  // Only one nowait clause can appear on a for directive.
1340  if (!FirstClause) {
1341  Diag(Tok, diag::err_omp_more_one_clause)
1342  << getOpenMPDirectiveName(DKind) << getOpenMPClauseName(CKind) << 0;
1343  ErrorFound = true;
1344  }
1345 
1346  Clause = ParseOpenMPClause(CKind, WrongDirective);
1347  break;
1348  case OMPC_private:
1349  case OMPC_firstprivate:
1350  case OMPC_lastprivate:
1351  case OMPC_shared:
1352  case OMPC_reduction:
1353  case OMPC_task_reduction:
1354  case OMPC_in_reduction:
1355  case OMPC_linear:
1356  case OMPC_aligned:
1357  case OMPC_copyin:
1358  case OMPC_copyprivate:
1359  case OMPC_flush:
1360  case OMPC_depend:
1361  case OMPC_map:
1362  case OMPC_to:
1363  case OMPC_from:
1364  case OMPC_use_device_ptr:
1365  case OMPC_is_device_ptr:
1366  Clause = ParseOpenMPVarListClause(DKind, CKind, WrongDirective);
1367  break;
1368  case OMPC_unknown:
1369  Diag(Tok, diag::warn_omp_extra_tokens_at_eol)
1370  << getOpenMPDirectiveName(DKind);
1371  SkipUntil(tok::annot_pragma_openmp_end, StopBeforeMatch);
1372  break;
1373  case OMPC_threadprivate:
1374  case OMPC_uniform:
1375  if (!WrongDirective)
1376  Diag(Tok, diag::err_omp_unexpected_clause)
1377  << getOpenMPClauseName(CKind) << getOpenMPDirectiveName(DKind);
1378  SkipUntil(tok::comma, tok::annot_pragma_openmp_end, StopBeforeMatch);
1379  break;
1380  }
1381  return ErrorFound ? nullptr : Clause;
1382 }
1383 
1384 /// Parses simple expression in parens for single-expression clauses of OpenMP
1385 /// constructs.
1386 /// \param RLoc Returned location of right paren.
1388  SourceLocation &RLoc) {
1389  BalancedDelimiterTracker T(*this, tok::l_paren, tok::annot_pragma_openmp_end);
1390  if (T.expectAndConsume(diag::err_expected_lparen_after, ClauseName.data()))
1391  return ExprError();
1392 
1393  SourceLocation ELoc = Tok.getLocation();
1394  ExprResult LHS(ParseCastExpression(
1395  /*isUnaryExpression=*/false, /*isAddressOfOperand=*/false, NotTypeCast));
1396  ExprResult Val(ParseRHSOfBinaryExpression(LHS, prec::Conditional));
1397  Val = Actions.ActOnFinishFullExpr(Val.get(), ELoc);
1398 
1399  // Parse ')'.
1400  RLoc = Tok.getLocation();
1401  if (!T.consumeClose())
1402  RLoc = T.getCloseLocation();
1403 
1404  return Val;
1405 }
1406 
1407 /// Parsing of OpenMP clauses with single expressions like 'final',
1408 /// 'collapse', 'safelen', 'num_threads', 'simdlen', 'num_teams',
1409 /// 'thread_limit', 'simdlen', 'priority', 'grainsize', 'num_tasks' or 'hint'.
1410 ///
1411 /// final-clause:
1412 /// 'final' '(' expression ')'
1413 ///
1414 /// num_threads-clause:
1415 /// 'num_threads' '(' expression ')'
1416 ///
1417 /// safelen-clause:
1418 /// 'safelen' '(' expression ')'
1419 ///
1420 /// simdlen-clause:
1421 /// 'simdlen' '(' expression ')'
1422 ///
1423 /// collapse-clause:
1424 /// 'collapse' '(' expression ')'
1425 ///
1426 /// priority-clause:
1427 /// 'priority' '(' expression ')'
1428 ///
1429 /// grainsize-clause:
1430 /// 'grainsize' '(' expression ')'
1431 ///
1432 /// num_tasks-clause:
1433 /// 'num_tasks' '(' expression ')'
1434 ///
1435 /// hint-clause:
1436 /// 'hint' '(' expression ')'
1437 ///
1438 OMPClause *Parser::ParseOpenMPSingleExprClause(OpenMPClauseKind Kind,
1439  bool ParseOnly) {
1440  SourceLocation Loc = ConsumeToken();
1441  SourceLocation LLoc = Tok.getLocation();
1442  SourceLocation RLoc;
1443 
1444  ExprResult Val = ParseOpenMPParensExpr(getOpenMPClauseName(Kind), RLoc);
1445 
1446  if (Val.isInvalid())
1447  return nullptr;
1448 
1449  if (ParseOnly)
1450  return nullptr;
1451  return Actions.ActOnOpenMPSingleExprClause(Kind, Val.get(), Loc, LLoc, RLoc);
1452 }
1453 
1454 /// Parsing of simple OpenMP clauses like 'default' or 'proc_bind'.
1455 ///
1456 /// default-clause:
1457 /// 'default' '(' 'none' | 'shared' ')
1458 ///
1459 /// proc_bind-clause:
1460 /// 'proc_bind' '(' 'master' | 'close' | 'spread' ')
1461 ///
1462 OMPClause *Parser::ParseOpenMPSimpleClause(OpenMPClauseKind Kind,
1463  bool ParseOnly) {
1464  SourceLocation Loc = Tok.getLocation();
1465  SourceLocation LOpen = ConsumeToken();
1466  // Parse '('.
1467  BalancedDelimiterTracker T(*this, tok::l_paren, tok::annot_pragma_openmp_end);
1468  if (T.expectAndConsume(diag::err_expected_lparen_after,
1470  return nullptr;
1471 
1472  unsigned Type = getOpenMPSimpleClauseType(
1473  Kind, Tok.isAnnotation() ? "" : PP.getSpelling(Tok));
1474  SourceLocation TypeLoc = Tok.getLocation();
1475  if (Tok.isNot(tok::r_paren) && Tok.isNot(tok::comma) &&
1476  Tok.isNot(tok::annot_pragma_openmp_end))
1477  ConsumeAnyToken();
1478 
1479  // Parse ')'.
1480  SourceLocation RLoc = Tok.getLocation();
1481  if (!T.consumeClose())
1482  RLoc = T.getCloseLocation();
1483 
1484  if (ParseOnly)
1485  return nullptr;
1486  return Actions.ActOnOpenMPSimpleClause(Kind, Type, TypeLoc, LOpen, Loc, RLoc);
1487 }
1488 
1489 /// Parsing of OpenMP clauses like 'ordered'.
1490 ///
1491 /// ordered-clause:
1492 /// 'ordered'
1493 ///
1494 /// nowait-clause:
1495 /// 'nowait'
1496 ///
1497 /// untied-clause:
1498 /// 'untied'
1499 ///
1500 /// mergeable-clause:
1501 /// 'mergeable'
1502 ///
1503 /// read-clause:
1504 /// 'read'
1505 ///
1506 /// threads-clause:
1507 /// 'threads'
1508 ///
1509 /// simd-clause:
1510 /// 'simd'
1511 ///
1512 /// nogroup-clause:
1513 /// 'nogroup'
1514 ///
1515 OMPClause *Parser::ParseOpenMPClause(OpenMPClauseKind Kind, bool ParseOnly) {
1516  SourceLocation Loc = Tok.getLocation();
1517  ConsumeAnyToken();
1518 
1519  if (ParseOnly)
1520  return nullptr;
1521  return Actions.ActOnOpenMPClause(Kind, Loc, Tok.getLocation());
1522 }
1523 
1524 
1525 /// Parsing of OpenMP clauses with single expressions and some additional
1526 /// argument like 'schedule' or 'dist_schedule'.
1527 ///
1528 /// schedule-clause:
1529 /// 'schedule' '(' [ modifier [ ',' modifier ] ':' ] kind [',' expression ]
1530 /// ')'
1531 ///
1532 /// if-clause:
1533 /// 'if' '(' [ directive-name-modifier ':' ] expression ')'
1534 ///
1535 /// defaultmap:
1536 /// 'defaultmap' '(' modifier ':' kind ')'
1537 ///
1538 OMPClause *Parser::ParseOpenMPSingleExprWithArgClause(OpenMPClauseKind Kind,
1539  bool ParseOnly) {
1540  SourceLocation Loc = ConsumeToken();
1541  SourceLocation DelimLoc;
1542  // Parse '('.
1543  BalancedDelimiterTracker T(*this, tok::l_paren, tok::annot_pragma_openmp_end);
1544  if (T.expectAndConsume(diag::err_expected_lparen_after,
1546  return nullptr;
1547 
1548  ExprResult Val;
1551  if (Kind == OMPC_schedule) {
1552  enum { Modifier1, Modifier2, ScheduleKind, NumberOfElements };
1553  Arg.resize(NumberOfElements);
1554  KLoc.resize(NumberOfElements);
1555  Arg[Modifier1] = OMPC_SCHEDULE_MODIFIER_unknown;
1556  Arg[Modifier2] = OMPC_SCHEDULE_MODIFIER_unknown;
1557  Arg[ScheduleKind] = OMPC_SCHEDULE_unknown;
1558  unsigned KindModifier = getOpenMPSimpleClauseType(
1559  Kind, Tok.isAnnotation() ? "" : PP.getSpelling(Tok));
1560  if (KindModifier > OMPC_SCHEDULE_unknown) {
1561  // Parse 'modifier'
1562  Arg[Modifier1] = KindModifier;
1563  KLoc[Modifier1] = Tok.getLocation();
1564  if (Tok.isNot(tok::r_paren) && Tok.isNot(tok::comma) &&
1565  Tok.isNot(tok::annot_pragma_openmp_end))
1566  ConsumeAnyToken();
1567  if (Tok.is(tok::comma)) {
1568  // Parse ',' 'modifier'
1569  ConsumeAnyToken();
1570  KindModifier = getOpenMPSimpleClauseType(
1571  Kind, Tok.isAnnotation() ? "" : PP.getSpelling(Tok));
1572  Arg[Modifier2] = KindModifier > OMPC_SCHEDULE_unknown
1573  ? KindModifier
1574  : (unsigned)OMPC_SCHEDULE_unknown;
1575  KLoc[Modifier2] = Tok.getLocation();
1576  if (Tok.isNot(tok::r_paren) && Tok.isNot(tok::comma) &&
1577  Tok.isNot(tok::annot_pragma_openmp_end))
1578  ConsumeAnyToken();
1579  }
1580  // Parse ':'
1581  if (Tok.is(tok::colon))
1582  ConsumeAnyToken();
1583  else
1584  Diag(Tok, diag::warn_pragma_expected_colon) << "schedule modifier";
1585  KindModifier = getOpenMPSimpleClauseType(
1586  Kind, Tok.isAnnotation() ? "" : PP.getSpelling(Tok));
1587  }
1588  Arg[ScheduleKind] = KindModifier;
1589  KLoc[ScheduleKind] = Tok.getLocation();
1590  if (Tok.isNot(tok::r_paren) && Tok.isNot(tok::comma) &&
1591  Tok.isNot(tok::annot_pragma_openmp_end))
1592  ConsumeAnyToken();
1593  if ((Arg[ScheduleKind] == OMPC_SCHEDULE_static ||
1594  Arg[ScheduleKind] == OMPC_SCHEDULE_dynamic ||
1595  Arg[ScheduleKind] == OMPC_SCHEDULE_guided) &&
1596  Tok.is(tok::comma))
1597  DelimLoc = ConsumeAnyToken();
1598  } else if (Kind == OMPC_dist_schedule) {
1599  Arg.push_back(getOpenMPSimpleClauseType(
1600  Kind, Tok.isAnnotation() ? "" : PP.getSpelling(Tok)));
1601  KLoc.push_back(Tok.getLocation());
1602  if (Tok.isNot(tok::r_paren) && Tok.isNot(tok::comma) &&
1603  Tok.isNot(tok::annot_pragma_openmp_end))
1604  ConsumeAnyToken();
1605  if (Arg.back() == OMPC_DIST_SCHEDULE_static && Tok.is(tok::comma))
1606  DelimLoc = ConsumeAnyToken();
1607  } else if (Kind == OMPC_defaultmap) {
1608  // Get a defaultmap modifier
1609  Arg.push_back(getOpenMPSimpleClauseType(
1610  Kind, Tok.isAnnotation() ? "" : PP.getSpelling(Tok)));
1611  KLoc.push_back(Tok.getLocation());
1612  if (Tok.isNot(tok::r_paren) && Tok.isNot(tok::comma) &&
1613  Tok.isNot(tok::annot_pragma_openmp_end))
1614  ConsumeAnyToken();
1615  // Parse ':'
1616  if (Tok.is(tok::colon))
1617  ConsumeAnyToken();
1618  else if (Arg.back() != OMPC_DEFAULTMAP_MODIFIER_unknown)
1619  Diag(Tok, diag::warn_pragma_expected_colon) << "defaultmap modifier";
1620  // Get a defaultmap kind
1621  Arg.push_back(getOpenMPSimpleClauseType(
1622  Kind, Tok.isAnnotation() ? "" : PP.getSpelling(Tok)));
1623  KLoc.push_back(Tok.getLocation());
1624  if (Tok.isNot(tok::r_paren) && Tok.isNot(tok::comma) &&
1625  Tok.isNot(tok::annot_pragma_openmp_end))
1626  ConsumeAnyToken();
1627  } else {
1628  assert(Kind == OMPC_if);
1629  KLoc.push_back(Tok.getLocation());
1630  TentativeParsingAction TPA(*this);
1631  Arg.push_back(parseOpenMPDirectiveKind(*this));
1632  if (Arg.back() != OMPD_unknown) {
1633  ConsumeToken();
1634  if (Tok.is(tok::colon) && getLangOpts().OpenMP > 40) {
1635  TPA.Commit();
1636  DelimLoc = ConsumeToken();
1637  } else {
1638  TPA.Revert();
1639  Arg.back() = OMPD_unknown;
1640  }
1641  } else {
1642  TPA.Revert();
1643  }
1644  }
1645 
1646  bool NeedAnExpression = (Kind == OMPC_schedule && DelimLoc.isValid()) ||
1647  (Kind == OMPC_dist_schedule && DelimLoc.isValid()) ||
1648  Kind == OMPC_if;
1649  if (NeedAnExpression) {
1650  SourceLocation ELoc = Tok.getLocation();
1651  ExprResult LHS(ParseCastExpression(false, false, NotTypeCast));
1652  Val = ParseRHSOfBinaryExpression(LHS, prec::Conditional);
1653  Val = Actions.ActOnFinishFullExpr(Val.get(), ELoc);
1654  }
1655 
1656  // Parse ')'.
1657  SourceLocation RLoc = Tok.getLocation();
1658  if (!T.consumeClose())
1659  RLoc = T.getCloseLocation();
1660 
1661  if (NeedAnExpression && Val.isInvalid())
1662  return nullptr;
1663 
1664  if (ParseOnly)
1665  return nullptr;
1666  return Actions.ActOnOpenMPSingleExprWithArgClause(
1667  Kind, Arg, Val.get(), Loc, T.getOpenLocation(), KLoc, DelimLoc, RLoc);
1668 }
1669 
1670 static bool ParseReductionId(Parser &P, CXXScopeSpec &ReductionIdScopeSpec,
1671  UnqualifiedId &ReductionId) {
1672  if (ReductionIdScopeSpec.isEmpty()) {
1673  auto OOK = OO_None;
1674  switch (P.getCurToken().getKind()) {
1675  case tok::plus:
1676  OOK = OO_Plus;
1677  break;
1678  case tok::minus:
1679  OOK = OO_Minus;
1680  break;
1681  case tok::star:
1682  OOK = OO_Star;
1683  break;
1684  case tok::amp:
1685  OOK = OO_Amp;
1686  break;
1687  case tok::pipe:
1688  OOK = OO_Pipe;
1689  break;
1690  case tok::caret:
1691  OOK = OO_Caret;
1692  break;
1693  case tok::ampamp:
1694  OOK = OO_AmpAmp;
1695  break;
1696  case tok::pipepipe:
1697  OOK = OO_PipePipe;
1698  break;
1699  default:
1700  break;
1701  }
1702  if (OOK != OO_None) {
1703  SourceLocation OpLoc = P.ConsumeToken();
1704  SourceLocation SymbolLocations[] = {OpLoc, OpLoc, SourceLocation()};
1705  ReductionId.setOperatorFunctionId(OpLoc, OOK, SymbolLocations);
1706  return false;
1707  }
1708  }
1709  return P.ParseUnqualifiedId(ReductionIdScopeSpec, /*EnteringContext*/ false,
1710  /*AllowDestructorName*/ false,
1711  /*AllowConstructorName*/ false,
1712  /*AllowDeductionGuide*/ false,
1713  nullptr, nullptr, ReductionId);
1714 }
1715 
1716 /// Parses clauses with list.
1720  OpenMPVarListDataTy &Data) {
1721  UnqualifiedId UnqualifiedReductionId;
1722  bool InvalidReductionId = false;
1723  bool MapTypeModifierSpecified = false;
1724 
1725  // Parse '('.
1726  BalancedDelimiterTracker T(*this, tok::l_paren, tok::annot_pragma_openmp_end);
1727  if (T.expectAndConsume(diag::err_expected_lparen_after,
1728  getOpenMPClauseName(Kind)))
1729  return true;
1730 
1731  bool NeedRParenForLinear = false;
1732  BalancedDelimiterTracker LinearT(*this, tok::l_paren,
1733  tok::annot_pragma_openmp_end);
1734  // Handle reduction-identifier for reduction clause.
1735  if (Kind == OMPC_reduction || Kind == OMPC_task_reduction ||
1736  Kind == OMPC_in_reduction) {
1737  ColonProtectionRAIIObject ColonRAII(*this);
1738  if (getLangOpts().CPlusPlus)
1739  ParseOptionalCXXScopeSpecifier(Data.ReductionIdScopeSpec,
1740  /*ObjectType=*/nullptr,
1741  /*EnteringContext=*/false);
1742  InvalidReductionId = ParseReductionId(*this, Data.ReductionIdScopeSpec,
1743  UnqualifiedReductionId);
1744  if (InvalidReductionId) {
1745  SkipUntil(tok::colon, tok::r_paren, tok::annot_pragma_openmp_end,
1746  StopBeforeMatch);
1747  }
1748  if (Tok.is(tok::colon))
1749  Data.ColonLoc = ConsumeToken();
1750  else
1751  Diag(Tok, diag::warn_pragma_expected_colon) << "reduction identifier";
1752  if (!InvalidReductionId)
1753  Data.ReductionId =
1754  Actions.GetNameFromUnqualifiedId(UnqualifiedReductionId);
1755  } else if (Kind == OMPC_depend) {
1756  // Handle dependency type for depend clause.
1757  ColonProtectionRAIIObject ColonRAII(*this);
1758  Data.DepKind =
1760  Kind, Tok.is(tok::identifier) ? PP.getSpelling(Tok) : ""));
1761  Data.DepLinMapLoc = Tok.getLocation();
1762 
1763  if (Data.DepKind == OMPC_DEPEND_unknown) {
1764  SkipUntil(tok::colon, tok::r_paren, tok::annot_pragma_openmp_end,
1765  StopBeforeMatch);
1766  } else {
1767  ConsumeToken();
1768  // Special processing for depend(source) clause.
1769  if (DKind == OMPD_ordered && Data.DepKind == OMPC_DEPEND_source) {
1770  // Parse ')'.
1771  T.consumeClose();
1772  return false;
1773  }
1774  }
1775  if (Tok.is(tok::colon)) {
1776  Data.ColonLoc = ConsumeToken();
1777  } else {
1778  Diag(Tok, DKind == OMPD_ordered ? diag::warn_pragma_expected_colon_r_paren
1779  : diag::warn_pragma_expected_colon)
1780  << "dependency type";
1781  }
1782  } else if (Kind == OMPC_linear) {
1783  // Try to parse modifier if any.
1784  if (Tok.is(tok::identifier) && PP.LookAhead(0).is(tok::l_paren)) {
1785  Data.LinKind = static_cast<OpenMPLinearClauseKind>(
1786  getOpenMPSimpleClauseType(Kind, PP.getSpelling(Tok)));
1787  Data.DepLinMapLoc = ConsumeToken();
1788  LinearT.consumeOpen();
1789  NeedRParenForLinear = true;
1790  }
1791  } else if (Kind == OMPC_map) {
1792  // Handle map type for map clause.
1793  ColonProtectionRAIIObject ColonRAII(*this);
1794 
1795  /// The map clause modifier token can be either a identifier or the C++
1796  /// delete keyword.
1797  auto &&IsMapClauseModifierToken = [](const Token &Tok) -> bool {
1798  return Tok.isOneOf(tok::identifier, tok::kw_delete);
1799  };
1800 
1801  // The first identifier may be a list item, a map-type or a
1802  // map-type-modifier. The map modifier can also be delete which has the same
1803  // spelling of the C++ delete keyword.
1804  Data.MapType =
1805  IsMapClauseModifierToken(Tok)
1806  ? static_cast<OpenMPMapClauseKind>(
1807  getOpenMPSimpleClauseType(Kind, PP.getSpelling(Tok)))
1808  : OMPC_MAP_unknown;
1809  Data.DepLinMapLoc = Tok.getLocation();
1810  bool ColonExpected = false;
1811 
1812  if (IsMapClauseModifierToken(Tok)) {
1813  if (PP.LookAhead(0).is(tok::colon)) {
1814  if (Data.MapType == OMPC_MAP_unknown)
1815  Diag(Tok, diag::err_omp_unknown_map_type);
1816  else if (Data.MapType == OMPC_MAP_always)
1817  Diag(Tok, diag::err_omp_map_type_missing);
1818  ConsumeToken();
1819  } else if (PP.LookAhead(0).is(tok::comma)) {
1820  if (IsMapClauseModifierToken(PP.LookAhead(1)) &&
1821  PP.LookAhead(2).is(tok::colon)) {
1822  Data.MapTypeModifier = Data.MapType;
1823  if (Data.MapTypeModifier != OMPC_MAP_always) {
1824  Diag(Tok, diag::err_omp_unknown_map_type_modifier);
1826  } else {
1827  MapTypeModifierSpecified = true;
1828  }
1829 
1830  ConsumeToken();
1831  ConsumeToken();
1832 
1833  Data.MapType =
1834  IsMapClauseModifierToken(Tok)
1835  ? static_cast<OpenMPMapClauseKind>(
1836  getOpenMPSimpleClauseType(Kind, PP.getSpelling(Tok)))
1837  : OMPC_MAP_unknown;
1838  if (Data.MapType == OMPC_MAP_unknown ||
1839  Data.MapType == OMPC_MAP_always)
1840  Diag(Tok, diag::err_omp_unknown_map_type);
1841  ConsumeToken();
1842  } else {
1843  Data.MapType = OMPC_MAP_tofrom;
1844  Data.IsMapTypeImplicit = true;
1845  }
1846  } else if (IsMapClauseModifierToken(PP.LookAhead(0))) {
1847  if (PP.LookAhead(1).is(tok::colon)) {
1848  Data.MapTypeModifier = Data.MapType;
1849  if (Data.MapTypeModifier != OMPC_MAP_always) {
1850  Diag(Tok, diag::err_omp_unknown_map_type_modifier);
1852  } else {
1853  MapTypeModifierSpecified = true;
1854  }
1855 
1856  ConsumeToken();
1857 
1858  Data.MapType =
1859  IsMapClauseModifierToken(Tok)
1860  ? static_cast<OpenMPMapClauseKind>(
1861  getOpenMPSimpleClauseType(Kind, PP.getSpelling(Tok)))
1862  : OMPC_MAP_unknown;
1863  if (Data.MapType == OMPC_MAP_unknown ||
1864  Data.MapType == OMPC_MAP_always)
1865  Diag(Tok, diag::err_omp_unknown_map_type);
1866  ConsumeToken();
1867  } else {
1868  Data.MapType = OMPC_MAP_tofrom;
1869  Data.IsMapTypeImplicit = true;
1870  }
1871  } else {
1872  Data.MapType = OMPC_MAP_tofrom;
1873  Data.IsMapTypeImplicit = true;
1874  }
1875  } else {
1876  Data.MapType = OMPC_MAP_tofrom;
1877  Data.IsMapTypeImplicit = true;
1878  }
1879 
1880  if (Tok.is(tok::colon))
1881  Data.ColonLoc = ConsumeToken();
1882  else if (ColonExpected)
1883  Diag(Tok, diag::warn_pragma_expected_colon) << "map type";
1884  }
1885 
1886  bool IsComma =
1887  (Kind != OMPC_reduction && Kind != OMPC_task_reduction &&
1888  Kind != OMPC_in_reduction && Kind != OMPC_depend && Kind != OMPC_map) ||
1889  (Kind == OMPC_reduction && !InvalidReductionId) ||
1890  (Kind == OMPC_map && Data.MapType != OMPC_MAP_unknown &&
1891  (!MapTypeModifierSpecified ||
1892  Data.MapTypeModifier == OMPC_MAP_always)) ||
1893  (Kind == OMPC_depend && Data.DepKind != OMPC_DEPEND_unknown);
1894  const bool MayHaveTail = (Kind == OMPC_linear || Kind == OMPC_aligned);
1895  while (IsComma || (Tok.isNot(tok::r_paren) && Tok.isNot(tok::colon) &&
1896  Tok.isNot(tok::annot_pragma_openmp_end))) {
1897  ColonProtectionRAIIObject ColonRAII(*this, MayHaveTail);
1898  // Parse variable
1899  ExprResult VarExpr =
1900  Actions.CorrectDelayedTyposInExpr(ParseAssignmentExpression());
1901  if (VarExpr.isUsable()) {
1902  Vars.push_back(VarExpr.get());
1903  } else {
1904  SkipUntil(tok::comma, tok::r_paren, tok::annot_pragma_openmp_end,
1905  StopBeforeMatch);
1906  }
1907  // Skip ',' if any
1908  IsComma = Tok.is(tok::comma);
1909  if (IsComma)
1910  ConsumeToken();
1911  else if (Tok.isNot(tok::r_paren) &&
1912  Tok.isNot(tok::annot_pragma_openmp_end) &&
1913  (!MayHaveTail || Tok.isNot(tok::colon)))
1914  Diag(Tok, diag::err_omp_expected_punc)
1915  << ((Kind == OMPC_flush) ? getOpenMPDirectiveName(OMPD_flush)
1916  : getOpenMPClauseName(Kind))
1917  << (Kind == OMPC_flush);
1918  }
1919 
1920  // Parse ')' for linear clause with modifier.
1921  if (NeedRParenForLinear)
1922  LinearT.consumeClose();
1923 
1924  // Parse ':' linear-step (or ':' alignment).
1925  const bool MustHaveTail = MayHaveTail && Tok.is(tok::colon);
1926  if (MustHaveTail) {
1927  Data.ColonLoc = Tok.getLocation();
1928  SourceLocation ELoc = ConsumeToken();
1929  ExprResult Tail = ParseAssignmentExpression();
1930  Tail = Actions.ActOnFinishFullExpr(Tail.get(), ELoc);
1931  if (Tail.isUsable())
1932  Data.TailExpr = Tail.get();
1933  else
1934  SkipUntil(tok::comma, tok::r_paren, tok::annot_pragma_openmp_end,
1935  StopBeforeMatch);
1936  }
1937 
1938  // Parse ')'.
1939  Data.RLoc = Tok.getLocation();
1940  if (!T.consumeClose())
1941  Data.RLoc = T.getCloseLocation();
1942  return (Kind == OMPC_depend && Data.DepKind != OMPC_DEPEND_unknown &&
1943  Vars.empty()) ||
1944  (Kind != OMPC_depend && Kind != OMPC_map && Vars.empty()) ||
1945  (MustHaveTail && !Data.TailExpr) || InvalidReductionId;
1946 }
1947 
1948 /// Parsing of OpenMP clause 'private', 'firstprivate', 'lastprivate',
1949 /// 'shared', 'copyin', 'copyprivate', 'flush', 'reduction', 'task_reduction' or
1950 /// 'in_reduction'.
1951 ///
1952 /// private-clause:
1953 /// 'private' '(' list ')'
1954 /// firstprivate-clause:
1955 /// 'firstprivate' '(' list ')'
1956 /// lastprivate-clause:
1957 /// 'lastprivate' '(' list ')'
1958 /// shared-clause:
1959 /// 'shared' '(' list ')'
1960 /// linear-clause:
1961 /// 'linear' '(' linear-list [ ':' linear-step ] ')'
1962 /// aligned-clause:
1963 /// 'aligned' '(' list [ ':' alignment ] ')'
1964 /// reduction-clause:
1965 /// 'reduction' '(' reduction-identifier ':' list ')'
1966 /// task_reduction-clause:
1967 /// 'task_reduction' '(' reduction-identifier ':' list ')'
1968 /// in_reduction-clause:
1969 /// 'in_reduction' '(' reduction-identifier ':' list ')'
1970 /// copyprivate-clause:
1971 /// 'copyprivate' '(' list ')'
1972 /// flush-clause:
1973 /// 'flush' '(' list ')'
1974 /// depend-clause:
1975 /// 'depend' '(' in | out | inout : list | source ')'
1976 /// map-clause:
1977 /// 'map' '(' [ [ always , ]
1978 /// to | from | tofrom | alloc | release | delete ':' ] list ')';
1979 /// to-clause:
1980 /// 'to' '(' list ')'
1981 /// from-clause:
1982 /// 'from' '(' list ')'
1983 /// use_device_ptr-clause:
1984 /// 'use_device_ptr' '(' list ')'
1985 /// is_device_ptr-clause:
1986 /// 'is_device_ptr' '(' list ')'
1987 ///
1988 /// For 'linear' clause linear-list may have the following forms:
1989 /// list
1990 /// modifier(list)
1991 /// where modifier is 'val' (C) or 'ref', 'val' or 'uval'(C++).
1992 OMPClause *Parser::ParseOpenMPVarListClause(OpenMPDirectiveKind DKind,
1994  bool ParseOnly) {
1995  SourceLocation Loc = Tok.getLocation();
1996  SourceLocation LOpen = ConsumeToken();
1998  OpenMPVarListDataTy Data;
1999 
2000  if (ParseOpenMPVarList(DKind, Kind, Vars, Data))
2001  return nullptr;
2002 
2003  if (ParseOnly)
2004  return nullptr;
2005  return Actions.ActOnOpenMPVarListClause(
2006  Kind, Vars, Data.TailExpr, Loc, LOpen, Data.ColonLoc, Data.RLoc,
2007  Data.ReductionIdScopeSpec, Data.ReductionId, Data.DepKind, Data.LinKind,
2008  Data.MapTypeModifier, Data.MapType, Data.IsMapTypeImplicit,
2009  Data.DepLinMapLoc);
2010 }
2011 
OpenMPDependClauseKind DepKind
Definition: Parser.h:2855
Defines the clang::ASTContext interface.
ExprResult ActOnOpenMPIdExpression(Scope *CurScope, CXXScopeSpec &ScopeSpec, const DeclarationNameInfo &Id)
Called on correct id-expression from the &#39;#pragma omp threadprivate&#39;.
static DiagnosticBuilder Diag(DiagnosticsEngine *Diags, const LangOptions &Features, FullSourceLoc TokLoc, const char *TokBegin, const char *TokRangeBegin, const char *TokRangeEnd, unsigned DiagID)
Produce a diagnostic highlighting some portion of a literal.
PtrTy get() const
Definition: Ownership.h:81
ParseScope - Introduces a new scope for parsing.
Definition: Parser.h:956
A (possibly-)qualified type.
Definition: Type.h:642
DeclarationNameInfo ReductionId
Definition: Parser.h:2854
static OpenMPDirectiveKind parseOpenMPDirectiveKind(Parser &P)
Definition: ParseOpenMP.cpp:83
const Token & LookAhead(unsigned N)
Peeks ahead N tokens and returns that token without consuming any tokens.
bool is(tok::TokenKind K) const
is/isNot - Predicates to check if this token is a specific kind, as in "if (Tok.is(tok::l_brace)) {...
Definition: Token.h:95
bool isEmpty() const
No scope specifier.
Definition: DeclSpec.h:189
iterator end()
Definition: DeclGroup.h:106
Decl - This represents one declaration (or definition), e.g.
Definition: DeclBase.h:86
StringRef P
The base class of the type hierarchy.
Definition: Type.h:1415
SourceLocation getCloseLocation() const
This indicates that the scope corresponds to a function, which means that labels are set here...
Definition: Scope.h:47
bool isAllowedClauseForDirective(OpenMPDirectiveKind DKind, OpenMPClauseKind CKind)
static bool ParseReductionId(Parser &P, CXXScopeSpec &ReductionIdScopeSpec, UnqualifiedId &ReductionId)
AccessSpecifier
A C++ access specifier (public, private, protected), plus the special value "none" which means differ...
Definition: Specifiers.h:98
void ActOnExitFunctionContext()
Definition: SemaDecl.cpp:1310
Wrapper for void* pointer.
Definition: Ownership.h:51
Parser - This implements a parser for the C family of languages.
Definition: Parser.h:57
bool isEmpty() const
Evaluates true when this declaration name is empty.
bool CheckOpenMPLinearModifier(OpenMPLinearClauseKind LinKind, SourceLocation LinLoc)
Checks correctness of linear modifiers.
Represents a variable declaration or definition.
Definition: Decl.h:812
ActionResult< Stmt * > StmtResult
Definition: Ownership.h:268
TypeSpecifierType
Specifies the kind of type.
Definition: Specifiers.h:45
RAII object used to temporarily allow the C++ &#39;this&#39; expression to be used, with the given qualifiers...
Definition: Sema.h:5083
RAII object that makes sure paren/bracket/brace count is correct after declaration/statement parsing...
bool isAnnotation() const
Return true if this is any of tok::annot_* kind tokens.
Definition: Token.h:118
ColonProtectionRAIIObject - This sets the Parser::ColonIsSacred bool and restores it when destroyed...
tok::TokenKind getKind() const
Definition: Token.h:90
bool SkipUntil(tok::TokenKind T, SkipUntilFlags Flags=static_cast< SkipUntilFlags >(0))
SkipUntil - Read tokens until we get to the specified token, then consume it (unless StopBeforeMatch ...
Definition: Parser.h:1050
OpenMPLinearClauseKind LinKind
Definition: Parser.h:2856
Base wrapper for a particular "section" of type source info.
Definition: TypeLoc.h:57
Represents a struct/union/class.
Definition: Decl.h:3570
const char * getOpenMPClauseName(OpenMPClauseKind Kind)
Definition: OpenMPKinds.cpp:62
One of these records is kept for each identifier that is lexed.
OpenMPLinearClauseKind
OpenMP attributes for &#39;linear&#39; clause.
Definition: OpenMPKinds.h:84
Token - This structure provides full information about a lexed token.
Definition: Token.h:35
RAII class that helps handle the parsing of an open/close delimiter pair, such as braces { ...
Represents a C++ unqualified-id that has been parsed.
Definition: DeclSpec.h:920
PtrTy get() const
Definition: Ownership.h:174
bool isNot(T Kind) const
Definition: FormatToken.h:326
StringRef getSpelling(SourceLocation loc, SmallVectorImpl< char > &buffer, bool *invalid=nullptr) const
Return the &#39;spelling&#39; of the token at the given location; does not go up to the spelling location or ...
const FormatToken & Tok
StmtResult StmtError()
Definition: Ownership.h:284
OpenMPClauseKind getOpenMPClauseKind(llvm::StringRef Str)
iterator begin()
Definition: DeclGroup.h:100
static bool parseDeclareSimdClauses(Parser &P, OMPDeclareSimdDeclAttr::BranchStateTy &BS, ExprResult &SimdLen, SmallVectorImpl< Expr *> &Uniforms, SmallVectorImpl< Expr *> &Aligneds, SmallVectorImpl< Expr *> &Alignments, SmallVectorImpl< Expr *> &Linears, SmallVectorImpl< unsigned > &LinModifiers, SmallVectorImpl< Expr *> &Steps)
Parses clauses for &#39;declare simd&#39; directive.
Represents a C++ nested-name-specifier or a global scope specifier.
Definition: DeclSpec.h:63
Sema - This implements semantic analysis and AST building for C.
Definition: Sema.h:277
bool isOneOf(A K1, B K2) const
Definition: FormatToken.h:319
A RAII object to enter scope of a compound statement.
Definition: Sema.h:3683
DeclarationNameTable DeclarationNames
Definition: ASTContext.h:568
OpenMPMapClauseKind MapTypeModifier
Definition: Parser.h:2857
This is the scope of OpenMP executable directive.
Definition: Scope.h:107
Sema & getActions() const
Definition: Parser.h:369
bool ParseUnqualifiedId(CXXScopeSpec &SS, bool EnteringContext, bool AllowDestructorName, bool AllowConstructorName, bool AllowDeductionGuide, ParsedType ObjectType, SourceLocation *TemplateKWLoc, UnqualifiedId &Result)
Parse a C++ unqualified-id (or a C identifier), which describes the name of an entity.
const Token & getCurToken() const
Definition: Parser.h:372
OpenMPDirectiveKindEx
Definition: ParseOpenMP.cpp:29
SourceLocation getLocation() const
Return a source location identifier for the specified offset in the current file. ...
Definition: Token.h:124
OpenMPClauseKind
OpenMP clauses.
Definition: OpenMPKinds.h:33
DeclContext * getDeclContext()
Definition: DeclBase.h:426
This is a compound statement scope.
Definition: Scope.h:130
Preprocessor & getPreprocessor() const
Definition: Parser.h:368
bool isInvalid() const
Definition: Ownership.h:170
SourceLocation getOpenLocation() const
bool isUsable() const
Definition: Ownership.h:171
bool isNull() const
Return true if this QualType doesn&#39;t point to a type yet.
Definition: Type.h:707
A class for parsing a DeclSpec.
bool isTemplateDecl() const
returns true if this declaration is a template
Definition: DeclBase.cpp:226
Kind
ActionResult - This structure is used while parsing/acting on expressions, stmts, etc...
Definition: Ownership.h:157
ASTContext & getASTContext() const
Definition: Sema.h:1219
Encodes a location in the source.
OpenMPDependClauseKind
OpenMP attributes for &#39;depend&#39; clause.
Definition: OpenMPKinds.h:76
bool is(tok::TokenKind Kind) const
Definition: FormatToken.h:310
bool ParseOpenMPVarList(OpenMPDirectiveKind DKind, OpenMPClauseKind Kind, SmallVectorImpl< Expr *> &Vars, OpenMPVarListDataTy &Data)
Parses clauses with list.
static unsigned getOpenMPDirectiveKindEx(StringRef S)
Definition: ParseOpenMP.cpp:65
IdentifierInfo * getIdentifierInfo() const
Definition: Token.h:177
OpenMPDirectiveKind
OpenMP directives.
Definition: OpenMPKinds.h:23
This is a basic class for representing single OpenMP clause.
Definition: OpenMPClause.h:51
Scope * getCurScope() const
Definition: Parser.h:373
ExprResult ParseOpenMPParensExpr(StringRef ClauseName, SourceLocation &RLoc)
Parses simple expression in parens for single-expression clauses of OpenMP constructs.
StringRef getName() const
Return the actual identifier string.
bool isNot(tok::TokenKind K) const
Definition: Token.h:96
Dataflow Directional Tag Classes.
bool isValid() const
Return true if this is a valid SourceLocation object.
bool expectAndConsume(unsigned DiagID=diag::err_expected, const char *Msg="", tok::TokenKind SkipToTok=tok::unknown)
Definition: Parser.cpp:2256
OverloadedOperatorKind
Enumeration specifying the different kinds of C++ overloaded operators.
Definition: OperatorKinds.h:22
This is the scope of some OpenMP simd directive.
Definition: Scope.h:115
bool isFunctionOrFunctionTemplate() const
Whether this declaration is a function or function template.
Definition: DeclBase.h:1016
This is a scope that corresponds to the template parameters of a C++ template.
Definition: Scope.h:77
DeclarationName - The name of a declaration.
bool isOpenMPSimdDirective(OpenMPDirectiveKind DKind)
Checks if the specified directive is a simd directive.
Data used for parsing list of variables in OpenMP clauses.
Definition: Parser.h:2849
DeclarationNameInfo - A collector data type for bundling together a DeclarationName and the correspnd...
static const TST TST_unspecified
Definition: DeclSpec.h:272
Not an overloaded operator.
Definition: OperatorKinds.h:23
unsigned getOpenMPSimpleClauseType(OpenMPClauseKind Kind, llvm::StringRef Str)
QualType getCanonicalTypeInternal() const
Definition: Type.h:2332
DiagnosticBuilder Diag(SourceLocation Loc, unsigned DiagID)
Definition: Parser.cpp:73
This file defines OpenMP AST classes for executable directives and clauses.
void setOperatorFunctionId(SourceLocation OperatorLoc, OverloadedOperatorKind Op, SourceLocation SymbolLocations[3])
Specify that this unqualified-id was parsed as an operator-function-id.
Definition: DeclSpec.cpp:1303
OpenMPDirectiveKind getOpenMPDirectiveKind(llvm::StringRef Str)
const char * getOpenMPDirectiveName(OpenMPDirectiveKind Kind)
Definition: OpenMPKinds.cpp:31
This is a scope that can contain a declaration.
Definition: Scope.h:59
SourceLocation ConsumeToken()
ConsumeToken - Consume the current &#39;peek token&#39; and lex the next one.
Definition: Parser.h:411
OpenMPMapClauseKind
OpenMP mapping kind for &#39;map&#39; clause.
Definition: OpenMPKinds.h:92
static DeclarationName parseOpenMPReductionId(Parser &P)
This is the scope of some OpenMP loop directive.
Definition: Scope.h:110
ExprResult ExprError()
Definition: Ownership.h:283
QualType getType() const
Definition: Decl.h:647
bool isOpenMPLoopDirective(OpenMPDirectiveKind DKind)
Checks if the specified directive is a directive with an associated loop construct.
A trivial tuple used to represent a source range.
This represents a decl that may have a name.
Definition: Decl.h:248
Directive - Abstract class representing a parsed verify directive.
SourceLocation getBegin() const
VerifyDiagnosticConsumer::Directive Directive
SourceLocation getLocation() const
Definition: DeclBase.h:417
OpenMPMapClauseKind MapType
Definition: Parser.h:2858
bool isCXXInstanceMember() const
Determine whether the given declaration is an instance member of a C++ class.
Definition: Decl.cpp:1728
Stop skipping at specified token, but don&#39;t skip the token itself.
Definition: Parser.h:1032
SourceLocation getEndLoc() const
Definition: Token.h:151