clang  7.0.0svn
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  ConsumeToken();
357  ParseOpenMPReductionInitializerForDecl(OmpPrivParm);
358  } else {
359  InitializerResult = Actions.ActOnFinishFullExpr(
360  ParseAssignmentExpression().get(), D->getLocation(),
361  /*DiscardedValue=*/true);
362  }
363  Actions.ActOnOpenMPDeclareReductionInitializerEnd(
364  D, InitializerResult.get(), OmpPrivParm);
365  if (InitializerResult.isInvalid() && Tok.isNot(tok::r_paren) &&
366  Tok.isNot(tok::annot_pragma_openmp_end)) {
367  TPA.Commit();
368  IsCorrect = false;
369  break;
370  }
371  IsCorrect =
372  !T.consumeClose() && IsCorrect && !InitializerResult.isInvalid();
373  }
374  }
375 
376  ++I;
377  // Revert parsing if not the last type, otherwise accept it, we're done with
378  // parsing.
379  if (I != E)
380  TPA.Revert();
381  else
382  TPA.Commit();
383  }
384  return Actions.ActOnOpenMPDeclareReductionDirectiveEnd(getCurScope(), DRD,
385  IsCorrect);
386 }
387 
388 void Parser::ParseOpenMPReductionInitializerForDecl(VarDecl *OmpPrivParm) {
389  // Parse declarator '=' initializer.
390  // If a '==' or '+=' is found, suggest a fixit to '='.
391  if (isTokenEqualOrEqualTypo()) {
392  ConsumeToken();
393 
394  if (Tok.is(tok::code_completion)) {
395  Actions.CodeCompleteInitializer(getCurScope(), OmpPrivParm);
396  Actions.FinalizeDeclaration(OmpPrivParm);
397  cutOffParsing();
398  return;
399  }
400 
401  ExprResult Init(ParseInitializer());
402 
403  if (Init.isInvalid()) {
404  SkipUntil(tok::r_paren, tok::annot_pragma_openmp_end, StopBeforeMatch);
405  Actions.ActOnInitializerError(OmpPrivParm);
406  } else {
407  Actions.AddInitializerToDecl(OmpPrivParm, Init.get(),
408  /*DirectInit=*/false);
409  }
410  } else if (Tok.is(tok::l_paren)) {
411  // Parse C++ direct initializer: '(' expression-list ')'
412  BalancedDelimiterTracker T(*this, tok::l_paren);
413  T.consumeOpen();
414 
415  ExprVector Exprs;
416  CommaLocsTy CommaLocs;
417 
418  if (ParseExpressionList(Exprs, CommaLocs, [this, OmpPrivParm, &Exprs] {
419  Actions.CodeCompleteConstructor(
420  getCurScope(), OmpPrivParm->getType()->getCanonicalTypeInternal(),
421  OmpPrivParm->getLocation(), Exprs);
422  })) {
423  Actions.ActOnInitializerError(OmpPrivParm);
424  SkipUntil(tok::r_paren, tok::annot_pragma_openmp_end, StopBeforeMatch);
425  } else {
426  // Match the ')'.
427  T.consumeClose();
428 
429  assert(!Exprs.empty() && Exprs.size() - 1 == CommaLocs.size() &&
430  "Unexpected number of commas!");
431 
432  ExprResult Initializer = Actions.ActOnParenListExpr(
433  T.getOpenLocation(), T.getCloseLocation(), Exprs);
434  Actions.AddInitializerToDecl(OmpPrivParm, Initializer.get(),
435  /*DirectInit=*/true);
436  }
437  } else if (getLangOpts().CPlusPlus11 && Tok.is(tok::l_brace)) {
438  // Parse C++0x braced-init-list.
439  Diag(Tok, diag::warn_cxx98_compat_generalized_initializer_lists);
440 
441  ExprResult Init(ParseBraceInitializer());
442 
443  if (Init.isInvalid()) {
444  Actions.ActOnInitializerError(OmpPrivParm);
445  } else {
446  Actions.AddInitializerToDecl(OmpPrivParm, Init.get(),
447  /*DirectInit=*/true);
448  }
449  } else {
450  Actions.ActOnUninitializedDecl(OmpPrivParm);
451  }
452 }
453 
454 namespace {
455 /// RAII that recreates function context for correct parsing of clauses of
456 /// 'declare simd' construct.
457 /// OpenMP, 2.8.2 declare simd Construct
458 /// The expressions appearing in the clauses of this directive are evaluated in
459 /// the scope of the arguments of the function declaration or definition.
460 class FNContextRAII final {
461  Parser &P;
462  Sema::CXXThisScopeRAII *ThisScope;
463  Parser::ParseScope *TempScope;
464  Parser::ParseScope *FnScope;
465  bool HasTemplateScope = false;
466  bool HasFunScope = false;
467  FNContextRAII() = delete;
468  FNContextRAII(const FNContextRAII &) = delete;
469  FNContextRAII &operator=(const FNContextRAII &) = delete;
470 
471 public:
472  FNContextRAII(Parser &P, Parser::DeclGroupPtrTy Ptr) : P(P) {
473  Decl *D = *Ptr.get().begin();
474  NamedDecl *ND = dyn_cast<NamedDecl>(D);
475  RecordDecl *RD = dyn_cast_or_null<RecordDecl>(D->getDeclContext());
476  Sema &Actions = P.getActions();
477 
478  // Allow 'this' within late-parsed attributes.
479  ThisScope = new Sema::CXXThisScopeRAII(Actions, RD, /*TypeQuals=*/0,
480  ND && ND->isCXXInstanceMember());
481 
482  // If the Decl is templatized, add template parameters to scope.
483  HasTemplateScope = D->isTemplateDecl();
484  TempScope =
485  new Parser::ParseScope(&P, Scope::TemplateParamScope, HasTemplateScope);
486  if (HasTemplateScope)
487  Actions.ActOnReenterTemplateScope(Actions.getCurScope(), D);
488 
489  // If the Decl is on a function, add function parameters to the scope.
490  HasFunScope = D->isFunctionOrFunctionTemplate();
491  FnScope = new Parser::ParseScope(
493  HasFunScope);
494  if (HasFunScope)
495  Actions.ActOnReenterFunctionContext(Actions.getCurScope(), D);
496  }
497  ~FNContextRAII() {
498  if (HasFunScope) {
500  FnScope->Exit(); // Pop scope, and remove Decls from IdResolver
501  }
502  if (HasTemplateScope)
503  TempScope->Exit();
504  delete FnScope;
505  delete TempScope;
506  delete ThisScope;
507  }
508 };
509 } // namespace
510 
511 /// Parses clauses for 'declare simd' directive.
512 /// clause:
513 /// 'inbranch' | 'notinbranch'
514 /// 'simdlen' '(' <expr> ')'
515 /// { 'uniform' '(' <argument_list> ')' }
516 /// { 'aligned '(' <argument_list> [ ':' <alignment> ] ')' }
517 /// { 'linear '(' <argument_list> [ ':' <step> ] ')' }
519  Parser &P, OMPDeclareSimdDeclAttr::BranchStateTy &BS, ExprResult &SimdLen,
521  SmallVectorImpl<Expr *> &Alignments, SmallVectorImpl<Expr *> &Linears,
522  SmallVectorImpl<unsigned> &LinModifiers, SmallVectorImpl<Expr *> &Steps) {
523  SourceRange BSRange;
524  const Token &Tok = P.getCurToken();
525  bool IsError = false;
526  while (Tok.isNot(tok::annot_pragma_openmp_end)) {
527  if (Tok.isNot(tok::identifier))
528  break;
529  OMPDeclareSimdDeclAttr::BranchStateTy Out;
530  IdentifierInfo *II = Tok.getIdentifierInfo();
531  StringRef ClauseName = II->getName();
532  // Parse 'inranch|notinbranch' clauses.
533  if (OMPDeclareSimdDeclAttr::ConvertStrToBranchStateTy(ClauseName, Out)) {
534  if (BS != OMPDeclareSimdDeclAttr::BS_Undefined && BS != Out) {
535  P.Diag(Tok, diag::err_omp_declare_simd_inbranch_notinbranch)
536  << ClauseName
537  << OMPDeclareSimdDeclAttr::ConvertBranchStateTyToStr(BS) << BSRange;
538  IsError = true;
539  }
540  BS = Out;
541  BSRange = SourceRange(Tok.getLocation(), Tok.getEndLoc());
542  P.ConsumeToken();
543  } else if (ClauseName.equals("simdlen")) {
544  if (SimdLen.isUsable()) {
545  P.Diag(Tok, diag::err_omp_more_one_clause)
546  << getOpenMPDirectiveName(OMPD_declare_simd) << ClauseName << 0;
547  IsError = true;
548  }
549  P.ConsumeToken();
550  SourceLocation RLoc;
551  SimdLen = P.ParseOpenMPParensExpr(ClauseName, RLoc);
552  if (SimdLen.isInvalid())
553  IsError = true;
554  } else {
555  OpenMPClauseKind CKind = getOpenMPClauseKind(ClauseName);
556  if (CKind == OMPC_uniform || CKind == OMPC_aligned ||
557  CKind == OMPC_linear) {
559  SmallVectorImpl<Expr *> *Vars = &Uniforms;
560  if (CKind == OMPC_aligned)
561  Vars = &Aligneds;
562  else if (CKind == OMPC_linear)
563  Vars = &Linears;
564 
565  P.ConsumeToken();
566  if (P.ParseOpenMPVarList(OMPD_declare_simd,
567  getOpenMPClauseKind(ClauseName), *Vars, Data))
568  IsError = true;
569  if (CKind == OMPC_aligned) {
570  Alignments.append(Aligneds.size() - Alignments.size(), Data.TailExpr);
571  } else if (CKind == OMPC_linear) {
573  Data.DepLinMapLoc))
574  Data.LinKind = OMPC_LINEAR_val;
575  LinModifiers.append(Linears.size() - LinModifiers.size(),
576  Data.LinKind);
577  Steps.append(Linears.size() - Steps.size(), Data.TailExpr);
578  }
579  } else
580  // TODO: add parsing of other clauses.
581  break;
582  }
583  // Skip ',' if any.
584  if (Tok.is(tok::comma))
585  P.ConsumeToken();
586  }
587  return IsError;
588 }
589 
590 /// Parse clauses for '#pragma omp declare simd'.
592 Parser::ParseOMPDeclareSimdClauses(Parser::DeclGroupPtrTy Ptr,
593  CachedTokens &Toks, SourceLocation Loc) {
594  PP.EnterToken(Tok);
595  PP.EnterTokenStream(Toks, /*DisableMacroExpansion=*/true);
596  // Consume the previously pushed token.
597  ConsumeAnyToken(/*ConsumeCodeCompletionTok=*/true);
598 
599  FNContextRAII FnContext(*this, Ptr);
600  OMPDeclareSimdDeclAttr::BranchStateTy BS =
601  OMPDeclareSimdDeclAttr::BS_Undefined;
602  ExprResult Simdlen;
603  SmallVector<Expr *, 4> Uniforms;
604  SmallVector<Expr *, 4> Aligneds;
605  SmallVector<Expr *, 4> Alignments;
606  SmallVector<Expr *, 4> Linears;
607  SmallVector<unsigned, 4> LinModifiers;
609  bool IsError =
610  parseDeclareSimdClauses(*this, BS, Simdlen, Uniforms, Aligneds,
611  Alignments, Linears, LinModifiers, Steps);
612  // Need to check for extra tokens.
613  if (Tok.isNot(tok::annot_pragma_openmp_end)) {
614  Diag(Tok, diag::warn_omp_extra_tokens_at_eol)
615  << getOpenMPDirectiveName(OMPD_declare_simd);
616  while (Tok.isNot(tok::annot_pragma_openmp_end))
617  ConsumeAnyToken();
618  }
619  // Skip the last annot_pragma_openmp_end.
620  SourceLocation EndLoc = ConsumeAnnotationToken();
621  if (IsError)
622  return Ptr;
623  return Actions.ActOnOpenMPDeclareSimdDirective(
624  Ptr, BS, Simdlen.get(), Uniforms, Aligneds, Alignments, Linears,
625  LinModifiers, Steps, SourceRange(Loc, EndLoc));
626 }
627 
628 /// Parsing of declarative OpenMP directives.
629 ///
630 /// threadprivate-directive:
631 /// annot_pragma_openmp 'threadprivate' simple-variable-list
632 /// annot_pragma_openmp_end
633 ///
634 /// declare-reduction-directive:
635 /// annot_pragma_openmp 'declare' 'reduction' [...]
636 /// annot_pragma_openmp_end
637 ///
638 /// declare-simd-directive:
639 /// annot_pragma_openmp 'declare simd' {<clause> [,]}
640 /// annot_pragma_openmp_end
641 /// <function declaration/definition>
642 ///
643 Parser::DeclGroupPtrTy Parser::ParseOpenMPDeclarativeDirectiveWithExtDecl(
644  AccessSpecifier &AS, ParsedAttributesWithRange &Attrs,
645  DeclSpec::TST TagType, Decl *Tag) {
646  assert(Tok.is(tok::annot_pragma_openmp) && "Not an OpenMP directive!");
647  ParenBraceBracketBalancer BalancerRAIIObj(*this);
648 
649  SourceLocation Loc = ConsumeAnnotationToken();
651 
652  switch (DKind) {
653  case OMPD_threadprivate: {
654  ConsumeToken();
655  ThreadprivateListParserHelper Helper(this);
656  if (!ParseOpenMPSimpleVarList(OMPD_threadprivate, Helper, true)) {
657  // The last seen token is annot_pragma_openmp_end - need to check for
658  // extra tokens.
659  if (Tok.isNot(tok::annot_pragma_openmp_end)) {
660  Diag(Tok, diag::warn_omp_extra_tokens_at_eol)
661  << getOpenMPDirectiveName(OMPD_threadprivate);
662  SkipUntil(tok::annot_pragma_openmp_end, StopBeforeMatch);
663  }
664  // Skip the last annot_pragma_openmp_end.
665  ConsumeAnnotationToken();
666  return Actions.ActOnOpenMPThreadprivateDirective(Loc,
667  Helper.getIdentifiers());
668  }
669  break;
670  }
671  case OMPD_declare_reduction:
672  ConsumeToken();
673  if (DeclGroupPtrTy Res = ParseOpenMPDeclareReductionDirective(AS)) {
674  // The last seen token is annot_pragma_openmp_end - need to check for
675  // extra tokens.
676  if (Tok.isNot(tok::annot_pragma_openmp_end)) {
677  Diag(Tok, diag::warn_omp_extra_tokens_at_eol)
678  << getOpenMPDirectiveName(OMPD_declare_reduction);
679  while (Tok.isNot(tok::annot_pragma_openmp_end))
680  ConsumeAnyToken();
681  }
682  // Skip the last annot_pragma_openmp_end.
683  ConsumeAnnotationToken();
684  return Res;
685  }
686  break;
687  case OMPD_declare_simd: {
688  // The syntax is:
689  // { #pragma omp declare simd }
690  // <function-declaration-or-definition>
691  //
692  ConsumeToken();
693  CachedTokens Toks;
694  while(Tok.isNot(tok::annot_pragma_openmp_end)) {
695  Toks.push_back(Tok);
696  ConsumeAnyToken();
697  }
698  Toks.push_back(Tok);
699  ConsumeAnyToken();
700 
701  DeclGroupPtrTy Ptr;
702  if (Tok.is(tok::annot_pragma_openmp)) {
703  Ptr = ParseOpenMPDeclarativeDirectiveWithExtDecl(AS, Attrs, TagType, Tag);
704  } else if (Tok.isNot(tok::r_brace) && !isEofOrEom()) {
705  // Here we expect to see some function declaration.
706  if (AS == AS_none) {
708  MaybeParseCXX11Attributes(Attrs);
709  ParsingDeclSpec PDS(*this);
710  Ptr = ParseExternalDeclaration(Attrs, &PDS);
711  } else {
712  Ptr =
713  ParseCXXClassMemberDeclarationWithPragmas(AS, Attrs, TagType, Tag);
714  }
715  }
716  if (!Ptr) {
717  Diag(Loc, diag::err_omp_decl_in_declare_simd);
718  return DeclGroupPtrTy();
719  }
720  return ParseOMPDeclareSimdClauses(Ptr, Toks, Loc);
721  }
722  case OMPD_declare_target: {
723  SourceLocation DTLoc = ConsumeAnyToken();
724  if (Tok.isNot(tok::annot_pragma_openmp_end)) {
725  // OpenMP 4.5 syntax with list of entities.
726  Sema::NamedDeclSetType SameDirectiveDecls;
727  while (Tok.isNot(tok::annot_pragma_openmp_end)) {
728  OMPDeclareTargetDeclAttr::MapTypeTy MT =
729  OMPDeclareTargetDeclAttr::MT_To;
730  if (Tok.is(tok::identifier)) {
731  IdentifierInfo *II = Tok.getIdentifierInfo();
732  StringRef ClauseName = II->getName();
733  // Parse 'to|link' clauses.
734  if (!OMPDeclareTargetDeclAttr::ConvertStrToMapTypeTy(ClauseName,
735  MT)) {
736  Diag(Tok, diag::err_omp_declare_target_unexpected_clause)
737  << ClauseName;
738  break;
739  }
740  ConsumeToken();
741  }
742  auto &&Callback = [this, MT, &SameDirectiveDecls](
743  CXXScopeSpec &SS, DeclarationNameInfo NameInfo) {
744  Actions.ActOnOpenMPDeclareTargetName(getCurScope(), SS, NameInfo, MT,
745  SameDirectiveDecls);
746  };
747  if (ParseOpenMPSimpleVarList(OMPD_declare_target, Callback,
748  /*AllowScopeSpecifier=*/true))
749  break;
750 
751  // Consume optional ','.
752  if (Tok.is(tok::comma))
753  ConsumeToken();
754  }
755  SkipUntil(tok::annot_pragma_openmp_end, StopBeforeMatch);
756  ConsumeAnyToken();
757  SmallVector<Decl *, 4> Decls(SameDirectiveDecls.begin(),
758  SameDirectiveDecls.end());
759  if (Decls.empty())
760  return DeclGroupPtrTy();
761  return Actions.BuildDeclaratorGroup(Decls);
762  }
763 
764  // Skip the last annot_pragma_openmp_end.
765  ConsumeAnyToken();
766 
767  if (!Actions.ActOnStartOpenMPDeclareTargetDirective(DTLoc))
768  return DeclGroupPtrTy();
769 
771  DKind = parseOpenMPDirectiveKind(*this);
772  while (DKind != OMPD_end_declare_target && DKind != OMPD_declare_target &&
773  Tok.isNot(tok::eof) && Tok.isNot(tok::r_brace)) {
774  DeclGroupPtrTy Ptr;
775  // Here we expect to see some function declaration.
776  if (AS == AS_none) {
778  MaybeParseCXX11Attributes(Attrs);
779  ParsingDeclSpec PDS(*this);
780  Ptr = ParseExternalDeclaration(Attrs, &PDS);
781  } else {
782  Ptr =
783  ParseCXXClassMemberDeclarationWithPragmas(AS, Attrs, TagType, Tag);
784  }
785  if (Ptr) {
786  DeclGroupRef Ref = Ptr.get();
787  Decls.append(Ref.begin(), Ref.end());
788  }
789  if (Tok.isAnnotation() && Tok.is(tok::annot_pragma_openmp)) {
790  TentativeParsingAction TPA(*this);
791  ConsumeAnnotationToken();
792  DKind = parseOpenMPDirectiveKind(*this);
793  if (DKind != OMPD_end_declare_target)
794  TPA.Revert();
795  else
796  TPA.Commit();
797  }
798  }
799 
800  if (DKind == OMPD_end_declare_target) {
801  ConsumeAnyToken();
802  if (Tok.isNot(tok::annot_pragma_openmp_end)) {
803  Diag(Tok, diag::warn_omp_extra_tokens_at_eol)
804  << getOpenMPDirectiveName(OMPD_end_declare_target);
805  SkipUntil(tok::annot_pragma_openmp_end, StopBeforeMatch);
806  }
807  // Skip the last annot_pragma_openmp_end.
808  ConsumeAnyToken();
809  } else {
810  Diag(Tok, diag::err_expected_end_declare_target);
811  Diag(DTLoc, diag::note_matching) << "'#pragma omp declare target'";
812  }
813  Actions.ActOnFinishOpenMPDeclareTargetDirective();
814  return Actions.BuildDeclaratorGroup(Decls);
815  }
816  case OMPD_unknown:
817  Diag(Tok, diag::err_omp_unknown_directive);
818  break;
819  case OMPD_parallel:
820  case OMPD_simd:
821  case OMPD_task:
822  case OMPD_taskyield:
823  case OMPD_barrier:
824  case OMPD_taskwait:
825  case OMPD_taskgroup:
826  case OMPD_flush:
827  case OMPD_for:
828  case OMPD_for_simd:
829  case OMPD_sections:
830  case OMPD_section:
831  case OMPD_single:
832  case OMPD_master:
833  case OMPD_ordered:
834  case OMPD_critical:
835  case OMPD_parallel_for:
836  case OMPD_parallel_for_simd:
837  case OMPD_parallel_sections:
838  case OMPD_atomic:
839  case OMPD_target:
840  case OMPD_teams:
841  case OMPD_cancellation_point:
842  case OMPD_cancel:
843  case OMPD_target_data:
844  case OMPD_target_enter_data:
845  case OMPD_target_exit_data:
846  case OMPD_target_parallel:
847  case OMPD_target_parallel_for:
848  case OMPD_taskloop:
849  case OMPD_taskloop_simd:
850  case OMPD_distribute:
851  case OMPD_end_declare_target:
852  case OMPD_target_update:
853  case OMPD_distribute_parallel_for:
854  case OMPD_distribute_parallel_for_simd:
855  case OMPD_distribute_simd:
856  case OMPD_target_parallel_for_simd:
857  case OMPD_target_simd:
858  case OMPD_teams_distribute:
859  case OMPD_teams_distribute_simd:
860  case OMPD_teams_distribute_parallel_for_simd:
861  case OMPD_teams_distribute_parallel_for:
862  case OMPD_target_teams:
863  case OMPD_target_teams_distribute:
864  case OMPD_target_teams_distribute_parallel_for:
865  case OMPD_target_teams_distribute_parallel_for_simd:
866  case OMPD_target_teams_distribute_simd:
867  Diag(Tok, diag::err_omp_unexpected_directive)
868  << 1 << getOpenMPDirectiveName(DKind);
869  break;
870  }
871  while (Tok.isNot(tok::annot_pragma_openmp_end))
872  ConsumeAnyToken();
873  ConsumeAnyToken();
874  return nullptr;
875 }
876 
877 /// Parsing of declarative or executable OpenMP directives.
878 ///
879 /// threadprivate-directive:
880 /// annot_pragma_openmp 'threadprivate' simple-variable-list
881 /// annot_pragma_openmp_end
882 ///
883 /// declare-reduction-directive:
884 /// annot_pragma_openmp 'declare' 'reduction' '(' <reduction_id> ':'
885 /// <type> {',' <type>} ':' <expression> ')' ['initializer' '('
886 /// ('omp_priv' '=' <expression>|<function_call>) ')']
887 /// annot_pragma_openmp_end
888 ///
889 /// executable-directive:
890 /// annot_pragma_openmp 'parallel' | 'simd' | 'for' | 'sections' |
891 /// 'section' | 'single' | 'master' | 'critical' [ '(' <name> ')' ] |
892 /// 'parallel for' | 'parallel sections' | 'task' | 'taskyield' |
893 /// 'barrier' | 'taskwait' | 'flush' | 'ordered' | 'atomic' |
894 /// 'for simd' | 'parallel for simd' | 'target' | 'target data' |
895 /// 'taskgroup' | 'teams' | 'taskloop' | 'taskloop simd' |
896 /// 'distribute' | 'target enter data' | 'target exit data' |
897 /// 'target parallel' | 'target parallel for' |
898 /// 'target update' | 'distribute parallel for' |
899 /// 'distribute paralle for simd' | 'distribute simd' |
900 /// 'target parallel for simd' | 'target simd' |
901 /// 'teams distribute' | 'teams distribute simd' |
902 /// 'teams distribute parallel for simd' |
903 /// 'teams distribute parallel for' | 'target teams' |
904 /// 'target teams distribute' |
905 /// 'target teams distribute parallel for' |
906 /// 'target teams distribute parallel for simd' |
907 /// 'target teams distribute simd' {clause}
908 /// annot_pragma_openmp_end
909 ///
910 StmtResult Parser::ParseOpenMPDeclarativeOrExecutableDirective(
911  AllowedConstructsKind Allowed) {
912  assert(Tok.is(tok::annot_pragma_openmp) && "Not an OpenMP directive!");
913  ParenBraceBracketBalancer BalancerRAIIObj(*this);
916  FirstClauses(OMPC_unknown + 1);
917  unsigned ScopeFlags = Scope::FnScope | Scope::DeclScope |
919  SourceLocation Loc = ConsumeAnnotationToken(), EndLoc;
921  OpenMPDirectiveKind CancelRegion = OMPD_unknown;
922  // Name of critical directive.
923  DeclarationNameInfo DirName;
925  bool HasAssociatedStatement = true;
926  bool FlushHasClause = false;
927 
928  switch (DKind) {
929  case OMPD_threadprivate: {
930  if (Allowed != ACK_Any) {
931  Diag(Tok, diag::err_omp_immediate_directive)
932  << getOpenMPDirectiveName(DKind) << 0;
933  }
934  ConsumeToken();
935  ThreadprivateListParserHelper Helper(this);
936  if (!ParseOpenMPSimpleVarList(OMPD_threadprivate, Helper, false)) {
937  // The last seen token is annot_pragma_openmp_end - need to check for
938  // extra tokens.
939  if (Tok.isNot(tok::annot_pragma_openmp_end)) {
940  Diag(Tok, diag::warn_omp_extra_tokens_at_eol)
941  << getOpenMPDirectiveName(OMPD_threadprivate);
942  SkipUntil(tok::annot_pragma_openmp_end, StopBeforeMatch);
943  }
944  DeclGroupPtrTy Res = Actions.ActOnOpenMPThreadprivateDirective(
945  Loc, Helper.getIdentifiers());
946  Directive = Actions.ActOnDeclStmt(Res, Loc, Tok.getLocation());
947  }
948  SkipUntil(tok::annot_pragma_openmp_end);
949  break;
950  }
951  case OMPD_declare_reduction:
952  ConsumeToken();
953  if (DeclGroupPtrTy Res =
954  ParseOpenMPDeclareReductionDirective(/*AS=*/AS_none)) {
955  // The last seen token is annot_pragma_openmp_end - need to check for
956  // extra tokens.
957  if (Tok.isNot(tok::annot_pragma_openmp_end)) {
958  Diag(Tok, diag::warn_omp_extra_tokens_at_eol)
959  << getOpenMPDirectiveName(OMPD_declare_reduction);
960  while (Tok.isNot(tok::annot_pragma_openmp_end))
961  ConsumeAnyToken();
962  }
963  ConsumeAnyToken();
964  Directive = Actions.ActOnDeclStmt(Res, Loc, Tok.getLocation());
965  } else {
966  SkipUntil(tok::annot_pragma_openmp_end);
967  }
968  break;
969  case OMPD_flush:
970  if (PP.LookAhead(0).is(tok::l_paren)) {
971  FlushHasClause = true;
972  // Push copy of the current token back to stream to properly parse
973  // pseudo-clause OMPFlushClause.
974  PP.EnterToken(Tok);
975  }
976  LLVM_FALLTHROUGH;
977  case OMPD_taskyield:
978  case OMPD_barrier:
979  case OMPD_taskwait:
980  case OMPD_cancellation_point:
981  case OMPD_cancel:
982  case OMPD_target_enter_data:
983  case OMPD_target_exit_data:
984  case OMPD_target_update:
985  if (Allowed == ACK_StatementsOpenMPNonStandalone) {
986  Diag(Tok, diag::err_omp_immediate_directive)
987  << getOpenMPDirectiveName(DKind) << 0;
988  }
989  HasAssociatedStatement = false;
990  // Fall through for further analysis.
991  LLVM_FALLTHROUGH;
992  case OMPD_parallel:
993  case OMPD_simd:
994  case OMPD_for:
995  case OMPD_for_simd:
996  case OMPD_sections:
997  case OMPD_single:
998  case OMPD_section:
999  case OMPD_master:
1000  case OMPD_critical:
1001  case OMPD_parallel_for:
1002  case OMPD_parallel_for_simd:
1003  case OMPD_parallel_sections:
1004  case OMPD_task:
1005  case OMPD_ordered:
1006  case OMPD_atomic:
1007  case OMPD_target:
1008  case OMPD_teams:
1009  case OMPD_taskgroup:
1010  case OMPD_target_data:
1011  case OMPD_target_parallel:
1012  case OMPD_target_parallel_for:
1013  case OMPD_taskloop:
1014  case OMPD_taskloop_simd:
1015  case OMPD_distribute:
1016  case OMPD_distribute_parallel_for:
1017  case OMPD_distribute_parallel_for_simd:
1018  case OMPD_distribute_simd:
1019  case OMPD_target_parallel_for_simd:
1020  case OMPD_target_simd:
1021  case OMPD_teams_distribute:
1022  case OMPD_teams_distribute_simd:
1023  case OMPD_teams_distribute_parallel_for_simd:
1024  case OMPD_teams_distribute_parallel_for:
1025  case OMPD_target_teams:
1026  case OMPD_target_teams_distribute:
1027  case OMPD_target_teams_distribute_parallel_for:
1028  case OMPD_target_teams_distribute_parallel_for_simd:
1029  case OMPD_target_teams_distribute_simd: {
1030  ConsumeToken();
1031  // Parse directive name of the 'critical' directive if any.
1032  if (DKind == OMPD_critical) {
1033  BalancedDelimiterTracker T(*this, tok::l_paren,
1034  tok::annot_pragma_openmp_end);
1035  if (!T.consumeOpen()) {
1036  if (Tok.isAnyIdentifier()) {
1037  DirName =
1038  DeclarationNameInfo(Tok.getIdentifierInfo(), Tok.getLocation());
1039  ConsumeAnyToken();
1040  } else {
1041  Diag(Tok, diag::err_omp_expected_identifier_for_critical);
1042  }
1043  T.consumeClose();
1044  }
1045  } else if (DKind == OMPD_cancellation_point || DKind == OMPD_cancel) {
1046  CancelRegion = parseOpenMPDirectiveKind(*this);
1047  if (Tok.isNot(tok::annot_pragma_openmp_end))
1048  ConsumeToken();
1049  }
1050 
1051  if (isOpenMPLoopDirective(DKind))
1052  ScopeFlags |= Scope::OpenMPLoopDirectiveScope;
1053  if (isOpenMPSimdDirective(DKind))
1054  ScopeFlags |= Scope::OpenMPSimdDirectiveScope;
1055  ParseScope OMPDirectiveScope(this, ScopeFlags);
1056  Actions.StartOpenMPDSABlock(DKind, DirName, Actions.getCurScope(), Loc);
1057 
1058  while (Tok.isNot(tok::annot_pragma_openmp_end)) {
1059  OpenMPClauseKind CKind =
1060  Tok.isAnnotation()
1061  ? OMPC_unknown
1062  : FlushHasClause ? OMPC_flush
1063  : getOpenMPClauseKind(PP.getSpelling(Tok));
1064  Actions.StartOpenMPClause(CKind);
1065  FlushHasClause = false;
1066  OMPClause *Clause =
1067  ParseOpenMPClause(DKind, CKind, !FirstClauses[CKind].getInt());
1068  FirstClauses[CKind].setInt(true);
1069  if (Clause) {
1070  FirstClauses[CKind].setPointer(Clause);
1071  Clauses.push_back(Clause);
1072  }
1073 
1074  // Skip ',' if any.
1075  if (Tok.is(tok::comma))
1076  ConsumeToken();
1077  Actions.EndOpenMPClause();
1078  }
1079  // End location of the directive.
1080  EndLoc = Tok.getLocation();
1081  // Consume final annot_pragma_openmp_end.
1082  ConsumeAnnotationToken();
1083 
1084  // OpenMP [2.13.8, ordered Construct, Syntax]
1085  // If the depend clause is specified, the ordered construct is a stand-alone
1086  // directive.
1087  if (DKind == OMPD_ordered && FirstClauses[OMPC_depend].getInt()) {
1088  if (Allowed == ACK_StatementsOpenMPNonStandalone) {
1089  Diag(Loc, diag::err_omp_immediate_directive)
1090  << getOpenMPDirectiveName(DKind) << 1
1091  << getOpenMPClauseName(OMPC_depend);
1092  }
1093  HasAssociatedStatement = false;
1094  }
1095 
1096  StmtResult AssociatedStmt;
1097  if (HasAssociatedStatement) {
1098  // The body is a block scope like in Lambdas and Blocks.
1099  Actions.ActOnOpenMPRegionStart(DKind, getCurScope());
1100  // FIXME: We create a bogus CompoundStmt scope to hold the contents of
1101  // the captured region. Code elsewhere assumes that any FunctionScopeInfo
1102  // should have at least one compound statement scope within it.
1103  AssociatedStmt = (Sema::CompoundScopeRAII(Actions), ParseStatement());
1104  AssociatedStmt = Actions.ActOnOpenMPRegionEnd(AssociatedStmt, Clauses);
1105  } else if (DKind == OMPD_target_update || DKind == OMPD_target_enter_data ||
1106  DKind == OMPD_target_exit_data) {
1107  Actions.ActOnOpenMPRegionStart(DKind, getCurScope());
1108  AssociatedStmt = (Sema::CompoundScopeRAII(Actions),
1109  Actions.ActOnCompoundStmt(Loc, Loc, llvm::None,
1110  /*isStmtExpr=*/false));
1111  AssociatedStmt = Actions.ActOnOpenMPRegionEnd(AssociatedStmt, Clauses);
1112  }
1113  Directive = Actions.ActOnOpenMPExecutableDirective(
1114  DKind, DirName, CancelRegion, Clauses, AssociatedStmt.get(), Loc,
1115  EndLoc);
1116 
1117  // Exit scope.
1118  Actions.EndOpenMPDSABlock(Directive.get());
1119  OMPDirectiveScope.Exit();
1120  break;
1121  }
1122  case OMPD_declare_simd:
1123  case OMPD_declare_target:
1124  case OMPD_end_declare_target:
1125  Diag(Tok, diag::err_omp_unexpected_directive)
1126  << 1 << getOpenMPDirectiveName(DKind);
1127  SkipUntil(tok::annot_pragma_openmp_end);
1128  break;
1129  case OMPD_unknown:
1130  Diag(Tok, diag::err_omp_unknown_directive);
1131  SkipUntil(tok::annot_pragma_openmp_end);
1132  break;
1133  }
1134  return Directive;
1135 }
1136 
1137 // Parses simple list:
1138 // simple-variable-list:
1139 // '(' id-expression {, id-expression} ')'
1140 //
1141 bool Parser::ParseOpenMPSimpleVarList(
1143  const llvm::function_ref<void(CXXScopeSpec &, DeclarationNameInfo)> &
1144  Callback,
1145  bool AllowScopeSpecifier) {
1146  // Parse '('.
1147  BalancedDelimiterTracker T(*this, tok::l_paren, tok::annot_pragma_openmp_end);
1148  if (T.expectAndConsume(diag::err_expected_lparen_after,
1150  return true;
1151  bool IsCorrect = true;
1152  bool NoIdentIsFound = true;
1153 
1154  // Read tokens while ')' or annot_pragma_openmp_end is not found.
1155  while (Tok.isNot(tok::r_paren) && Tok.isNot(tok::annot_pragma_openmp_end)) {
1156  CXXScopeSpec SS;
1157  UnqualifiedId Name;
1158  // Read var name.
1159  Token PrevTok = Tok;
1160  NoIdentIsFound = false;
1161 
1162  if (AllowScopeSpecifier && getLangOpts().CPlusPlus &&
1163  ParseOptionalCXXScopeSpecifier(SS, nullptr, false)) {
1164  IsCorrect = false;
1165  SkipUntil(tok::comma, tok::r_paren, tok::annot_pragma_openmp_end,
1166  StopBeforeMatch);
1167  } else if (ParseUnqualifiedId(SS, false, false, false, false, nullptr,
1168  nullptr, Name)) {
1169  IsCorrect = false;
1170  SkipUntil(tok::comma, tok::r_paren, tok::annot_pragma_openmp_end,
1171  StopBeforeMatch);
1172  } else if (Tok.isNot(tok::comma) && Tok.isNot(tok::r_paren) &&
1173  Tok.isNot(tok::annot_pragma_openmp_end)) {
1174  IsCorrect = false;
1175  SkipUntil(tok::comma, tok::r_paren, tok::annot_pragma_openmp_end,
1176  StopBeforeMatch);
1177  Diag(PrevTok.getLocation(), diag::err_expected)
1178  << tok::identifier
1179  << SourceRange(PrevTok.getLocation(), PrevTokLocation);
1180  } else {
1181  Callback(SS, Actions.GetNameFromUnqualifiedId(Name));
1182  }
1183  // Consume ','.
1184  if (Tok.is(tok::comma)) {
1185  ConsumeToken();
1186  }
1187  }
1188 
1189  if (NoIdentIsFound) {
1190  Diag(Tok, diag::err_expected) << tok::identifier;
1191  IsCorrect = false;
1192  }
1193 
1194  // Parse ')'.
1195  IsCorrect = !T.consumeClose() && IsCorrect;
1196 
1197  return !IsCorrect;
1198 }
1199 
1200 /// Parsing of OpenMP clauses.
1201 ///
1202 /// clause:
1203 /// if-clause | final-clause | num_threads-clause | safelen-clause |
1204 /// default-clause | private-clause | firstprivate-clause | shared-clause
1205 /// | linear-clause | aligned-clause | collapse-clause |
1206 /// lastprivate-clause | reduction-clause | proc_bind-clause |
1207 /// schedule-clause | copyin-clause | copyprivate-clause | untied-clause |
1208 /// mergeable-clause | flush-clause | read-clause | write-clause |
1209 /// update-clause | capture-clause | seq_cst-clause | device-clause |
1210 /// simdlen-clause | threads-clause | simd-clause | num_teams-clause |
1211 /// thread_limit-clause | priority-clause | grainsize-clause |
1212 /// nogroup-clause | num_tasks-clause | hint-clause | to-clause |
1213 /// from-clause | is_device_ptr-clause | task_reduction-clause |
1214 /// in_reduction-clause
1215 ///
1216 OMPClause *Parser::ParseOpenMPClause(OpenMPDirectiveKind DKind,
1217  OpenMPClauseKind CKind, bool FirstClause) {
1218  OMPClause *Clause = nullptr;
1219  bool ErrorFound = false;
1220  bool WrongDirective = false;
1221  // Check if clause is allowed for the given directive.
1222  if (CKind != OMPC_unknown && !isAllowedClauseForDirective(DKind, CKind)) {
1223  Diag(Tok, diag::err_omp_unexpected_clause) << getOpenMPClauseName(CKind)
1224  << getOpenMPDirectiveName(DKind);
1225  ErrorFound = true;
1226  WrongDirective = true;
1227  }
1228 
1229  switch (CKind) {
1230  case OMPC_final:
1231  case OMPC_num_threads:
1232  case OMPC_safelen:
1233  case OMPC_simdlen:
1234  case OMPC_collapse:
1235  case OMPC_ordered:
1236  case OMPC_device:
1237  case OMPC_num_teams:
1238  case OMPC_thread_limit:
1239  case OMPC_priority:
1240  case OMPC_grainsize:
1241  case OMPC_num_tasks:
1242  case OMPC_hint:
1243  // OpenMP [2.5, Restrictions]
1244  // At most one num_threads clause can appear on the directive.
1245  // OpenMP [2.8.1, simd construct, Restrictions]
1246  // Only one safelen clause can appear on a simd directive.
1247  // Only one simdlen clause can appear on a simd directive.
1248  // Only one collapse clause can appear on a simd directive.
1249  // OpenMP [2.9.1, target data construct, Restrictions]
1250  // At most one device clause can appear on the directive.
1251  // OpenMP [2.11.1, task Construct, Restrictions]
1252  // At most one if clause can appear on the directive.
1253  // At most one final clause can appear on the directive.
1254  // OpenMP [teams Construct, Restrictions]
1255  // At most one num_teams clause can appear on the directive.
1256  // At most one thread_limit clause can appear on the directive.
1257  // OpenMP [2.9.1, task Construct, Restrictions]
1258  // At most one priority clause can appear on the directive.
1259  // OpenMP [2.9.2, taskloop Construct, Restrictions]
1260  // At most one grainsize clause can appear on the directive.
1261  // OpenMP [2.9.2, taskloop Construct, Restrictions]
1262  // At most one num_tasks clause can appear on the directive.
1263  if (!FirstClause) {
1264  Diag(Tok, diag::err_omp_more_one_clause)
1265  << getOpenMPDirectiveName(DKind) << getOpenMPClauseName(CKind) << 0;
1266  ErrorFound = true;
1267  }
1268 
1269  if (CKind == OMPC_ordered && PP.LookAhead(/*N=*/0).isNot(tok::l_paren))
1270  Clause = ParseOpenMPClause(CKind, WrongDirective);
1271  else
1272  Clause = ParseOpenMPSingleExprClause(CKind, WrongDirective);
1273  break;
1274  case OMPC_default:
1275  case OMPC_proc_bind:
1276  // OpenMP [2.14.3.1, Restrictions]
1277  // Only a single default clause may be specified on a parallel, task or
1278  // teams directive.
1279  // OpenMP [2.5, parallel Construct, Restrictions]
1280  // At most one proc_bind clause can appear on the directive.
1281  if (!FirstClause) {
1282  Diag(Tok, diag::err_omp_more_one_clause)
1283  << getOpenMPDirectiveName(DKind) << getOpenMPClauseName(CKind) << 0;
1284  ErrorFound = true;
1285  }
1286 
1287  Clause = ParseOpenMPSimpleClause(CKind, WrongDirective);
1288  break;
1289  case OMPC_schedule:
1290  case OMPC_dist_schedule:
1291  case OMPC_defaultmap:
1292  // OpenMP [2.7.1, Restrictions, p. 3]
1293  // Only one schedule clause can appear on a loop directive.
1294  // OpenMP [2.10.4, Restrictions, p. 106]
1295  // At most one defaultmap clause can appear on the directive.
1296  if (!FirstClause) {
1297  Diag(Tok, diag::err_omp_more_one_clause)
1298  << getOpenMPDirectiveName(DKind) << getOpenMPClauseName(CKind) << 0;
1299  ErrorFound = true;
1300  }
1301  LLVM_FALLTHROUGH;
1302 
1303  case OMPC_if:
1304  Clause = ParseOpenMPSingleExprWithArgClause(CKind, WrongDirective);
1305  break;
1306  case OMPC_nowait:
1307  case OMPC_untied:
1308  case OMPC_mergeable:
1309  case OMPC_read:
1310  case OMPC_write:
1311  case OMPC_update:
1312  case OMPC_capture:
1313  case OMPC_seq_cst:
1314  case OMPC_threads:
1315  case OMPC_simd:
1316  case OMPC_nogroup:
1317  // OpenMP [2.7.1, Restrictions, p. 9]
1318  // Only one ordered clause can appear on a loop directive.
1319  // OpenMP [2.7.1, Restrictions, C/C++, p. 4]
1320  // Only one nowait clause can appear on a for directive.
1321  if (!FirstClause) {
1322  Diag(Tok, diag::err_omp_more_one_clause)
1323  << getOpenMPDirectiveName(DKind) << getOpenMPClauseName(CKind) << 0;
1324  ErrorFound = true;
1325  }
1326 
1327  Clause = ParseOpenMPClause(CKind, WrongDirective);
1328  break;
1329  case OMPC_private:
1330  case OMPC_firstprivate:
1331  case OMPC_lastprivate:
1332  case OMPC_shared:
1333  case OMPC_reduction:
1334  case OMPC_task_reduction:
1335  case OMPC_in_reduction:
1336  case OMPC_linear:
1337  case OMPC_aligned:
1338  case OMPC_copyin:
1339  case OMPC_copyprivate:
1340  case OMPC_flush:
1341  case OMPC_depend:
1342  case OMPC_map:
1343  case OMPC_to:
1344  case OMPC_from:
1345  case OMPC_use_device_ptr:
1346  case OMPC_is_device_ptr:
1347  Clause = ParseOpenMPVarListClause(DKind, CKind, WrongDirective);
1348  break;
1349  case OMPC_unknown:
1350  Diag(Tok, diag::warn_omp_extra_tokens_at_eol)
1351  << getOpenMPDirectiveName(DKind);
1352  SkipUntil(tok::annot_pragma_openmp_end, StopBeforeMatch);
1353  break;
1354  case OMPC_threadprivate:
1355  case OMPC_uniform:
1356  if (!WrongDirective)
1357  Diag(Tok, diag::err_omp_unexpected_clause)
1358  << getOpenMPClauseName(CKind) << getOpenMPDirectiveName(DKind);
1359  SkipUntil(tok::comma, tok::annot_pragma_openmp_end, StopBeforeMatch);
1360  break;
1361  }
1362  return ErrorFound ? nullptr : Clause;
1363 }
1364 
1365 /// Parses simple expression in parens for single-expression clauses of OpenMP
1366 /// constructs.
1367 /// \param RLoc Returned location of right paren.
1369  SourceLocation &RLoc) {
1370  BalancedDelimiterTracker T(*this, tok::l_paren, tok::annot_pragma_openmp_end);
1371  if (T.expectAndConsume(diag::err_expected_lparen_after, ClauseName.data()))
1372  return ExprError();
1373 
1374  SourceLocation ELoc = Tok.getLocation();
1375  ExprResult LHS(ParseCastExpression(
1376  /*isUnaryExpression=*/false, /*isAddressOfOperand=*/false, NotTypeCast));
1377  ExprResult Val(ParseRHSOfBinaryExpression(LHS, prec::Conditional));
1378  Val = Actions.ActOnFinishFullExpr(Val.get(), ELoc);
1379 
1380  // Parse ')'.
1381  T.consumeClose();
1382 
1383  RLoc = T.getCloseLocation();
1384  return Val;
1385 }
1386 
1387 /// Parsing of OpenMP clauses with single expressions like 'final',
1388 /// 'collapse', 'safelen', 'num_threads', 'simdlen', 'num_teams',
1389 /// 'thread_limit', 'simdlen', 'priority', 'grainsize', 'num_tasks' or 'hint'.
1390 ///
1391 /// final-clause:
1392 /// 'final' '(' expression ')'
1393 ///
1394 /// num_threads-clause:
1395 /// 'num_threads' '(' expression ')'
1396 ///
1397 /// safelen-clause:
1398 /// 'safelen' '(' expression ')'
1399 ///
1400 /// simdlen-clause:
1401 /// 'simdlen' '(' expression ')'
1402 ///
1403 /// collapse-clause:
1404 /// 'collapse' '(' expression ')'
1405 ///
1406 /// priority-clause:
1407 /// 'priority' '(' expression ')'
1408 ///
1409 /// grainsize-clause:
1410 /// 'grainsize' '(' expression ')'
1411 ///
1412 /// num_tasks-clause:
1413 /// 'num_tasks' '(' expression ')'
1414 ///
1415 /// hint-clause:
1416 /// 'hint' '(' expression ')'
1417 ///
1418 OMPClause *Parser::ParseOpenMPSingleExprClause(OpenMPClauseKind Kind,
1419  bool ParseOnly) {
1420  SourceLocation Loc = ConsumeToken();
1421  SourceLocation LLoc = Tok.getLocation();
1422  SourceLocation RLoc;
1423 
1424  ExprResult Val = ParseOpenMPParensExpr(getOpenMPClauseName(Kind), RLoc);
1425 
1426  if (Val.isInvalid())
1427  return nullptr;
1428 
1429  if (ParseOnly)
1430  return nullptr;
1431  return Actions.ActOnOpenMPSingleExprClause(Kind, Val.get(), Loc, LLoc, RLoc);
1432 }
1433 
1434 /// Parsing of simple OpenMP clauses like 'default' or 'proc_bind'.
1435 ///
1436 /// default-clause:
1437 /// 'default' '(' 'none' | 'shared' ')
1438 ///
1439 /// proc_bind-clause:
1440 /// 'proc_bind' '(' 'master' | 'close' | 'spread' ')
1441 ///
1442 OMPClause *Parser::ParseOpenMPSimpleClause(OpenMPClauseKind Kind,
1443  bool ParseOnly) {
1444  SourceLocation Loc = Tok.getLocation();
1445  SourceLocation LOpen = ConsumeToken();
1446  // Parse '('.
1447  BalancedDelimiterTracker T(*this, tok::l_paren, tok::annot_pragma_openmp_end);
1448  if (T.expectAndConsume(diag::err_expected_lparen_after,
1450  return nullptr;
1451 
1452  unsigned Type = getOpenMPSimpleClauseType(
1453  Kind, Tok.isAnnotation() ? "" : PP.getSpelling(Tok));
1454  SourceLocation TypeLoc = Tok.getLocation();
1455  if (Tok.isNot(tok::r_paren) && Tok.isNot(tok::comma) &&
1456  Tok.isNot(tok::annot_pragma_openmp_end))
1457  ConsumeAnyToken();
1458 
1459  // Parse ')'.
1460  T.consumeClose();
1461 
1462  if (ParseOnly)
1463  return nullptr;
1464  return Actions.ActOnOpenMPSimpleClause(Kind, Type, TypeLoc, LOpen, Loc,
1465  Tok.getLocation());
1466 }
1467 
1468 /// Parsing of OpenMP clauses like 'ordered'.
1469 ///
1470 /// ordered-clause:
1471 /// 'ordered'
1472 ///
1473 /// nowait-clause:
1474 /// 'nowait'
1475 ///
1476 /// untied-clause:
1477 /// 'untied'
1478 ///
1479 /// mergeable-clause:
1480 /// 'mergeable'
1481 ///
1482 /// read-clause:
1483 /// 'read'
1484 ///
1485 /// threads-clause:
1486 /// 'threads'
1487 ///
1488 /// simd-clause:
1489 /// 'simd'
1490 ///
1491 /// nogroup-clause:
1492 /// 'nogroup'
1493 ///
1494 OMPClause *Parser::ParseOpenMPClause(OpenMPClauseKind Kind, bool ParseOnly) {
1495  SourceLocation Loc = Tok.getLocation();
1496  ConsumeAnyToken();
1497 
1498  if (ParseOnly)
1499  return nullptr;
1500  return Actions.ActOnOpenMPClause(Kind, Loc, Tok.getLocation());
1501 }
1502 
1503 
1504 /// Parsing of OpenMP clauses with single expressions and some additional
1505 /// argument like 'schedule' or 'dist_schedule'.
1506 ///
1507 /// schedule-clause:
1508 /// 'schedule' '(' [ modifier [ ',' modifier ] ':' ] kind [',' expression ]
1509 /// ')'
1510 ///
1511 /// if-clause:
1512 /// 'if' '(' [ directive-name-modifier ':' ] expression ')'
1513 ///
1514 /// defaultmap:
1515 /// 'defaultmap' '(' modifier ':' kind ')'
1516 ///
1517 OMPClause *Parser::ParseOpenMPSingleExprWithArgClause(OpenMPClauseKind Kind,
1518  bool ParseOnly) {
1519  SourceLocation Loc = ConsumeToken();
1520  SourceLocation DelimLoc;
1521  // Parse '('.
1522  BalancedDelimiterTracker T(*this, tok::l_paren, tok::annot_pragma_openmp_end);
1523  if (T.expectAndConsume(diag::err_expected_lparen_after,
1525  return nullptr;
1526 
1527  ExprResult Val;
1530  if (Kind == OMPC_schedule) {
1531  enum { Modifier1, Modifier2, ScheduleKind, NumberOfElements };
1532  Arg.resize(NumberOfElements);
1533  KLoc.resize(NumberOfElements);
1534  Arg[Modifier1] = OMPC_SCHEDULE_MODIFIER_unknown;
1535  Arg[Modifier2] = OMPC_SCHEDULE_MODIFIER_unknown;
1536  Arg[ScheduleKind] = OMPC_SCHEDULE_unknown;
1537  unsigned KindModifier = getOpenMPSimpleClauseType(
1538  Kind, Tok.isAnnotation() ? "" : PP.getSpelling(Tok));
1539  if (KindModifier > OMPC_SCHEDULE_unknown) {
1540  // Parse 'modifier'
1541  Arg[Modifier1] = KindModifier;
1542  KLoc[Modifier1] = Tok.getLocation();
1543  if (Tok.isNot(tok::r_paren) && Tok.isNot(tok::comma) &&
1544  Tok.isNot(tok::annot_pragma_openmp_end))
1545  ConsumeAnyToken();
1546  if (Tok.is(tok::comma)) {
1547  // Parse ',' 'modifier'
1548  ConsumeAnyToken();
1549  KindModifier = getOpenMPSimpleClauseType(
1550  Kind, Tok.isAnnotation() ? "" : PP.getSpelling(Tok));
1551  Arg[Modifier2] = KindModifier > OMPC_SCHEDULE_unknown
1552  ? KindModifier
1553  : (unsigned)OMPC_SCHEDULE_unknown;
1554  KLoc[Modifier2] = Tok.getLocation();
1555  if (Tok.isNot(tok::r_paren) && Tok.isNot(tok::comma) &&
1556  Tok.isNot(tok::annot_pragma_openmp_end))
1557  ConsumeAnyToken();
1558  }
1559  // Parse ':'
1560  if (Tok.is(tok::colon))
1561  ConsumeAnyToken();
1562  else
1563  Diag(Tok, diag::warn_pragma_expected_colon) << "schedule modifier";
1564  KindModifier = getOpenMPSimpleClauseType(
1565  Kind, Tok.isAnnotation() ? "" : PP.getSpelling(Tok));
1566  }
1567  Arg[ScheduleKind] = KindModifier;
1568  KLoc[ScheduleKind] = Tok.getLocation();
1569  if (Tok.isNot(tok::r_paren) && Tok.isNot(tok::comma) &&
1570  Tok.isNot(tok::annot_pragma_openmp_end))
1571  ConsumeAnyToken();
1572  if ((Arg[ScheduleKind] == OMPC_SCHEDULE_static ||
1573  Arg[ScheduleKind] == OMPC_SCHEDULE_dynamic ||
1574  Arg[ScheduleKind] == OMPC_SCHEDULE_guided) &&
1575  Tok.is(tok::comma))
1576  DelimLoc = ConsumeAnyToken();
1577  } else if (Kind == OMPC_dist_schedule) {
1578  Arg.push_back(getOpenMPSimpleClauseType(
1579  Kind, Tok.isAnnotation() ? "" : PP.getSpelling(Tok)));
1580  KLoc.push_back(Tok.getLocation());
1581  if (Tok.isNot(tok::r_paren) && Tok.isNot(tok::comma) &&
1582  Tok.isNot(tok::annot_pragma_openmp_end))
1583  ConsumeAnyToken();
1584  if (Arg.back() == OMPC_DIST_SCHEDULE_static && Tok.is(tok::comma))
1585  DelimLoc = ConsumeAnyToken();
1586  } else if (Kind == OMPC_defaultmap) {
1587  // Get a defaultmap modifier
1588  Arg.push_back(getOpenMPSimpleClauseType(
1589  Kind, Tok.isAnnotation() ? "" : PP.getSpelling(Tok)));
1590  KLoc.push_back(Tok.getLocation());
1591  if (Tok.isNot(tok::r_paren) && Tok.isNot(tok::comma) &&
1592  Tok.isNot(tok::annot_pragma_openmp_end))
1593  ConsumeAnyToken();
1594  // Parse ':'
1595  if (Tok.is(tok::colon))
1596  ConsumeAnyToken();
1597  else if (Arg.back() != OMPC_DEFAULTMAP_MODIFIER_unknown)
1598  Diag(Tok, diag::warn_pragma_expected_colon) << "defaultmap modifier";
1599  // Get a defaultmap kind
1600  Arg.push_back(getOpenMPSimpleClauseType(
1601  Kind, Tok.isAnnotation() ? "" : PP.getSpelling(Tok)));
1602  KLoc.push_back(Tok.getLocation());
1603  if (Tok.isNot(tok::r_paren) && Tok.isNot(tok::comma) &&
1604  Tok.isNot(tok::annot_pragma_openmp_end))
1605  ConsumeAnyToken();
1606  } else {
1607  assert(Kind == OMPC_if);
1608  KLoc.push_back(Tok.getLocation());
1609  TentativeParsingAction TPA(*this);
1610  Arg.push_back(parseOpenMPDirectiveKind(*this));
1611  if (Arg.back() != OMPD_unknown) {
1612  ConsumeToken();
1613  if (Tok.is(tok::colon) && getLangOpts().OpenMP > 40) {
1614  TPA.Commit();
1615  DelimLoc = ConsumeToken();
1616  } else {
1617  TPA.Revert();
1618  Arg.back() = OMPD_unknown;
1619  }
1620  } else {
1621  TPA.Revert();
1622  }
1623  }
1624 
1625  bool NeedAnExpression = (Kind == OMPC_schedule && DelimLoc.isValid()) ||
1626  (Kind == OMPC_dist_schedule && DelimLoc.isValid()) ||
1627  Kind == OMPC_if;
1628  if (NeedAnExpression) {
1629  SourceLocation ELoc = Tok.getLocation();
1630  ExprResult LHS(ParseCastExpression(false, false, NotTypeCast));
1631  Val = ParseRHSOfBinaryExpression(LHS, prec::Conditional);
1632  Val = Actions.ActOnFinishFullExpr(Val.get(), ELoc);
1633  }
1634 
1635  // Parse ')'.
1636  T.consumeClose();
1637 
1638  if (NeedAnExpression && Val.isInvalid())
1639  return nullptr;
1640 
1641  if (ParseOnly)
1642  return nullptr;
1643  return Actions.ActOnOpenMPSingleExprWithArgClause(
1644  Kind, Arg, Val.get(), Loc, T.getOpenLocation(), KLoc, DelimLoc,
1645  T.getCloseLocation());
1646 }
1647 
1648 static bool ParseReductionId(Parser &P, CXXScopeSpec &ReductionIdScopeSpec,
1649  UnqualifiedId &ReductionId) {
1650  if (ReductionIdScopeSpec.isEmpty()) {
1651  auto OOK = OO_None;
1652  switch (P.getCurToken().getKind()) {
1653  case tok::plus:
1654  OOK = OO_Plus;
1655  break;
1656  case tok::minus:
1657  OOK = OO_Minus;
1658  break;
1659  case tok::star:
1660  OOK = OO_Star;
1661  break;
1662  case tok::amp:
1663  OOK = OO_Amp;
1664  break;
1665  case tok::pipe:
1666  OOK = OO_Pipe;
1667  break;
1668  case tok::caret:
1669  OOK = OO_Caret;
1670  break;
1671  case tok::ampamp:
1672  OOK = OO_AmpAmp;
1673  break;
1674  case tok::pipepipe:
1675  OOK = OO_PipePipe;
1676  break;
1677  default:
1678  break;
1679  }
1680  if (OOK != OO_None) {
1681  SourceLocation OpLoc = P.ConsumeToken();
1682  SourceLocation SymbolLocations[] = {OpLoc, OpLoc, SourceLocation()};
1683  ReductionId.setOperatorFunctionId(OpLoc, OOK, SymbolLocations);
1684  return false;
1685  }
1686  }
1687  return P.ParseUnqualifiedId(ReductionIdScopeSpec, /*EnteringContext*/ false,
1688  /*AllowDestructorName*/ false,
1689  /*AllowConstructorName*/ false,
1690  /*AllowDeductionGuide*/ false,
1691  nullptr, nullptr, ReductionId);
1692 }
1693 
1694 /// Parses clauses with list.
1698  OpenMPVarListDataTy &Data) {
1699  UnqualifiedId UnqualifiedReductionId;
1700  bool InvalidReductionId = false;
1701  bool MapTypeModifierSpecified = false;
1702 
1703  // Parse '('.
1704  BalancedDelimiterTracker T(*this, tok::l_paren, tok::annot_pragma_openmp_end);
1705  if (T.expectAndConsume(diag::err_expected_lparen_after,
1706  getOpenMPClauseName(Kind)))
1707  return true;
1708 
1709  bool NeedRParenForLinear = false;
1710  BalancedDelimiterTracker LinearT(*this, tok::l_paren,
1711  tok::annot_pragma_openmp_end);
1712  // Handle reduction-identifier for reduction clause.
1713  if (Kind == OMPC_reduction || Kind == OMPC_task_reduction ||
1714  Kind == OMPC_in_reduction) {
1715  ColonProtectionRAIIObject ColonRAII(*this);
1716  if (getLangOpts().CPlusPlus)
1717  ParseOptionalCXXScopeSpecifier(Data.ReductionIdScopeSpec,
1718  /*ObjectType=*/nullptr,
1719  /*EnteringContext=*/false);
1720  InvalidReductionId = ParseReductionId(*this, Data.ReductionIdScopeSpec,
1721  UnqualifiedReductionId);
1722  if (InvalidReductionId) {
1723  SkipUntil(tok::colon, tok::r_paren, tok::annot_pragma_openmp_end,
1724  StopBeforeMatch);
1725  }
1726  if (Tok.is(tok::colon))
1727  Data.ColonLoc = ConsumeToken();
1728  else
1729  Diag(Tok, diag::warn_pragma_expected_colon) << "reduction identifier";
1730  if (!InvalidReductionId)
1731  Data.ReductionId =
1732  Actions.GetNameFromUnqualifiedId(UnqualifiedReductionId);
1733  } else if (Kind == OMPC_depend) {
1734  // Handle dependency type for depend clause.
1735  ColonProtectionRAIIObject ColonRAII(*this);
1736  Data.DepKind =
1738  Kind, Tok.is(tok::identifier) ? PP.getSpelling(Tok) : ""));
1739  Data.DepLinMapLoc = Tok.getLocation();
1740 
1741  if (Data.DepKind == OMPC_DEPEND_unknown) {
1742  SkipUntil(tok::colon, tok::r_paren, tok::annot_pragma_openmp_end,
1743  StopBeforeMatch);
1744  } else {
1745  ConsumeToken();
1746  // Special processing for depend(source) clause.
1747  if (DKind == OMPD_ordered && Data.DepKind == OMPC_DEPEND_source) {
1748  // Parse ')'.
1749  T.consumeClose();
1750  return false;
1751  }
1752  }
1753  if (Tok.is(tok::colon)) {
1754  Data.ColonLoc = ConsumeToken();
1755  } else {
1756  Diag(Tok, DKind == OMPD_ordered ? diag::warn_pragma_expected_colon_r_paren
1757  : diag::warn_pragma_expected_colon)
1758  << "dependency type";
1759  }
1760  } else if (Kind == OMPC_linear) {
1761  // Try to parse modifier if any.
1762  if (Tok.is(tok::identifier) && PP.LookAhead(0).is(tok::l_paren)) {
1763  Data.LinKind = static_cast<OpenMPLinearClauseKind>(
1764  getOpenMPSimpleClauseType(Kind, PP.getSpelling(Tok)));
1765  Data.DepLinMapLoc = ConsumeToken();
1766  LinearT.consumeOpen();
1767  NeedRParenForLinear = true;
1768  }
1769  } else if (Kind == OMPC_map) {
1770  // Handle map type for map clause.
1771  ColonProtectionRAIIObject ColonRAII(*this);
1772 
1773  /// The map clause modifier token can be either a identifier or the C++
1774  /// delete keyword.
1775  auto &&IsMapClauseModifierToken = [](const Token &Tok) -> bool {
1776  return Tok.isOneOf(tok::identifier, tok::kw_delete);
1777  };
1778 
1779  // The first identifier may be a list item, a map-type or a
1780  // map-type-modifier. The map modifier can also be delete which has the same
1781  // spelling of the C++ delete keyword.
1782  Data.MapType =
1783  IsMapClauseModifierToken(Tok)
1784  ? static_cast<OpenMPMapClauseKind>(
1785  getOpenMPSimpleClauseType(Kind, PP.getSpelling(Tok)))
1786  : OMPC_MAP_unknown;
1787  Data.DepLinMapLoc = Tok.getLocation();
1788  bool ColonExpected = false;
1789 
1790  if (IsMapClauseModifierToken(Tok)) {
1791  if (PP.LookAhead(0).is(tok::colon)) {
1792  if (Data.MapType == OMPC_MAP_unknown)
1793  Diag(Tok, diag::err_omp_unknown_map_type);
1794  else if (Data.MapType == OMPC_MAP_always)
1795  Diag(Tok, diag::err_omp_map_type_missing);
1796  ConsumeToken();
1797  } else if (PP.LookAhead(0).is(tok::comma)) {
1798  if (IsMapClauseModifierToken(PP.LookAhead(1)) &&
1799  PP.LookAhead(2).is(tok::colon)) {
1800  Data.MapTypeModifier = Data.MapType;
1801  if (Data.MapTypeModifier != OMPC_MAP_always) {
1802  Diag(Tok, diag::err_omp_unknown_map_type_modifier);
1804  } else {
1805  MapTypeModifierSpecified = true;
1806  }
1807 
1808  ConsumeToken();
1809  ConsumeToken();
1810 
1811  Data.MapType =
1812  IsMapClauseModifierToken(Tok)
1813  ? static_cast<OpenMPMapClauseKind>(
1814  getOpenMPSimpleClauseType(Kind, PP.getSpelling(Tok)))
1815  : OMPC_MAP_unknown;
1816  if (Data.MapType == OMPC_MAP_unknown ||
1817  Data.MapType == OMPC_MAP_always)
1818  Diag(Tok, diag::err_omp_unknown_map_type);
1819  ConsumeToken();
1820  } else {
1821  Data.MapType = OMPC_MAP_tofrom;
1822  Data.IsMapTypeImplicit = true;
1823  }
1824  } else if (IsMapClauseModifierToken(PP.LookAhead(0))) {
1825  if (PP.LookAhead(1).is(tok::colon)) {
1826  Data.MapTypeModifier = Data.MapType;
1827  if (Data.MapTypeModifier != OMPC_MAP_always) {
1828  Diag(Tok, diag::err_omp_unknown_map_type_modifier);
1830  } else {
1831  MapTypeModifierSpecified = true;
1832  }
1833 
1834  ConsumeToken();
1835 
1836  Data.MapType =
1837  IsMapClauseModifierToken(Tok)
1838  ? static_cast<OpenMPMapClauseKind>(
1839  getOpenMPSimpleClauseType(Kind, PP.getSpelling(Tok)))
1840  : OMPC_MAP_unknown;
1841  if (Data.MapType == OMPC_MAP_unknown ||
1842  Data.MapType == OMPC_MAP_always)
1843  Diag(Tok, diag::err_omp_unknown_map_type);
1844  ConsumeToken();
1845  } else {
1846  Data.MapType = OMPC_MAP_tofrom;
1847  Data.IsMapTypeImplicit = true;
1848  }
1849  } else {
1850  Data.MapType = OMPC_MAP_tofrom;
1851  Data.IsMapTypeImplicit = true;
1852  }
1853  } else {
1854  Data.MapType = OMPC_MAP_tofrom;
1855  Data.IsMapTypeImplicit = true;
1856  }
1857 
1858  if (Tok.is(tok::colon))
1859  Data.ColonLoc = ConsumeToken();
1860  else if (ColonExpected)
1861  Diag(Tok, diag::warn_pragma_expected_colon) << "map type";
1862  }
1863 
1864  bool IsComma =
1865  (Kind != OMPC_reduction && Kind != OMPC_task_reduction &&
1866  Kind != OMPC_in_reduction && Kind != OMPC_depend && Kind != OMPC_map) ||
1867  (Kind == OMPC_reduction && !InvalidReductionId) ||
1868  (Kind == OMPC_map && Data.MapType != OMPC_MAP_unknown &&
1869  (!MapTypeModifierSpecified ||
1870  Data.MapTypeModifier == OMPC_MAP_always)) ||
1871  (Kind == OMPC_depend && Data.DepKind != OMPC_DEPEND_unknown);
1872  const bool MayHaveTail = (Kind == OMPC_linear || Kind == OMPC_aligned);
1873  while (IsComma || (Tok.isNot(tok::r_paren) && Tok.isNot(tok::colon) &&
1874  Tok.isNot(tok::annot_pragma_openmp_end))) {
1875  ColonProtectionRAIIObject ColonRAII(*this, MayHaveTail);
1876  // Parse variable
1877  ExprResult VarExpr =
1878  Actions.CorrectDelayedTyposInExpr(ParseAssignmentExpression());
1879  if (VarExpr.isUsable()) {
1880  Vars.push_back(VarExpr.get());
1881  } else {
1882  SkipUntil(tok::comma, tok::r_paren, tok::annot_pragma_openmp_end,
1883  StopBeforeMatch);
1884  }
1885  // Skip ',' if any
1886  IsComma = Tok.is(tok::comma);
1887  if (IsComma)
1888  ConsumeToken();
1889  else if (Tok.isNot(tok::r_paren) &&
1890  Tok.isNot(tok::annot_pragma_openmp_end) &&
1891  (!MayHaveTail || Tok.isNot(tok::colon)))
1892  Diag(Tok, diag::err_omp_expected_punc)
1893  << ((Kind == OMPC_flush) ? getOpenMPDirectiveName(OMPD_flush)
1894  : getOpenMPClauseName(Kind))
1895  << (Kind == OMPC_flush);
1896  }
1897 
1898  // Parse ')' for linear clause with modifier.
1899  if (NeedRParenForLinear)
1900  LinearT.consumeClose();
1901 
1902  // Parse ':' linear-step (or ':' alignment).
1903  const bool MustHaveTail = MayHaveTail && Tok.is(tok::colon);
1904  if (MustHaveTail) {
1905  Data.ColonLoc = Tok.getLocation();
1906  SourceLocation ELoc = ConsumeToken();
1907  ExprResult Tail = ParseAssignmentExpression();
1908  Tail = Actions.ActOnFinishFullExpr(Tail.get(), ELoc);
1909  if (Tail.isUsable())
1910  Data.TailExpr = Tail.get();
1911  else
1912  SkipUntil(tok::comma, tok::r_paren, tok::annot_pragma_openmp_end,
1913  StopBeforeMatch);
1914  }
1915 
1916  // Parse ')'.
1917  T.consumeClose();
1918  return (Kind == OMPC_depend && Data.DepKind != OMPC_DEPEND_unknown &&
1919  Vars.empty()) ||
1920  (Kind != OMPC_depend && Kind != OMPC_map && Vars.empty()) ||
1921  (MustHaveTail && !Data.TailExpr) || InvalidReductionId;
1922 }
1923 
1924 /// Parsing of OpenMP clause 'private', 'firstprivate', 'lastprivate',
1925 /// 'shared', 'copyin', 'copyprivate', 'flush', 'reduction', 'task_reduction' or
1926 /// 'in_reduction'.
1927 ///
1928 /// private-clause:
1929 /// 'private' '(' list ')'
1930 /// firstprivate-clause:
1931 /// 'firstprivate' '(' list ')'
1932 /// lastprivate-clause:
1933 /// 'lastprivate' '(' list ')'
1934 /// shared-clause:
1935 /// 'shared' '(' list ')'
1936 /// linear-clause:
1937 /// 'linear' '(' linear-list [ ':' linear-step ] ')'
1938 /// aligned-clause:
1939 /// 'aligned' '(' list [ ':' alignment ] ')'
1940 /// reduction-clause:
1941 /// 'reduction' '(' reduction-identifier ':' list ')'
1942 /// task_reduction-clause:
1943 /// 'task_reduction' '(' reduction-identifier ':' list ')'
1944 /// in_reduction-clause:
1945 /// 'in_reduction' '(' reduction-identifier ':' list ')'
1946 /// copyprivate-clause:
1947 /// 'copyprivate' '(' list ')'
1948 /// flush-clause:
1949 /// 'flush' '(' list ')'
1950 /// depend-clause:
1951 /// 'depend' '(' in | out | inout : list | source ')'
1952 /// map-clause:
1953 /// 'map' '(' [ [ always , ]
1954 /// to | from | tofrom | alloc | release | delete ':' ] list ')';
1955 /// to-clause:
1956 /// 'to' '(' list ')'
1957 /// from-clause:
1958 /// 'from' '(' list ')'
1959 /// use_device_ptr-clause:
1960 /// 'use_device_ptr' '(' list ')'
1961 /// is_device_ptr-clause:
1962 /// 'is_device_ptr' '(' list ')'
1963 ///
1964 /// For 'linear' clause linear-list may have the following forms:
1965 /// list
1966 /// modifier(list)
1967 /// where modifier is 'val' (C) or 'ref', 'val' or 'uval'(C++).
1968 OMPClause *Parser::ParseOpenMPVarListClause(OpenMPDirectiveKind DKind,
1970  bool ParseOnly) {
1971  SourceLocation Loc = Tok.getLocation();
1972  SourceLocation LOpen = ConsumeToken();
1974  OpenMPVarListDataTy Data;
1975 
1976  if (ParseOpenMPVarList(DKind, Kind, Vars, Data))
1977  return nullptr;
1978 
1979  if (ParseOnly)
1980  return nullptr;
1981  return Actions.ActOnOpenMPVarListClause(
1982  Kind, Vars, Data.TailExpr, Loc, LOpen, Data.ColonLoc, Tok.getLocation(),
1983  Data.ReductionIdScopeSpec, Data.ReductionId, Data.DepKind, Data.LinKind,
1984  Data.MapTypeModifier, Data.MapType, Data.IsMapTypeImplicit,
1985  Data.DepLinMapLoc);
1986 }
1987 
OpenMPDependClauseKind DepKind
Definition: Parser.h:2728
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:854
A (possibly-)qualified type.
Definition: Type.h:655
DeclarationNameInfo ReductionId
Definition: Parser.h:2727
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:1421
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:56
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:5076
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:948
OpenMPLinearClauseKind LinKind
Definition: Parser.h:2729
Base wrapper for a particular "section" of type source info.
Definition: TypeLoc.h:56
Represents a struct/union/class.
Definition: Decl.h:3548
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:320
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:276
bool isOneOf(A K1, B K2) const
Definition: FormatToken.h:313
A RAII object to enter scope of a compound statement.
Definition: Sema.h:3674
DeclarationNameTable DeclarationNames
Definition: ASTContext.h:541
OpenMPMapClauseKind MapTypeModifier
Definition: Parser.h:2730
const FunctionProtoType * T
This is the scope of OpenMP executable directive.
Definition: Scope.h:107
Sema & getActions() const
Definition: Parser.h:277
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:280
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:276
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:720
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:1200
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:304
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:281
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:2243
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:2723
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:2199
DiagnosticBuilder Diag(SourceLocation Loc, unsigned DiagID)
Definition: Parser.cpp:72
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:1312
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:319
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:2731
bool isCXXInstanceMember() const
Determine whether the given declaration is an instance member of a C++ class.
Definition: Decl.cpp:1718
Stop skipping at specified token, but don&#39;t skip the token itself.
Definition: Parser.h:930
SourceLocation getEndLoc() const
Definition: Token.h:151