[OPENMP50]'source' and 'sink' kinds are not allowed in depobj.

Do not allow to use 'sink' and 'source' dependency kinds in 'depobj'
directive.

Author: alexey-bataev

clang/lib/Sema/SemaOpenMP.cpp

@@ -12246,7 +12246,8 @@ OMPClause *Sema::ActOnOpenMPUpdateClause(OpenMPDependClauseKind Kind,
                                          SourceLocation StartLoc,
                                          SourceLocation LParenLoc,
                                          SourceLocation EndLoc) {
-  if (Kind == OMPC_DEPEND_unknown) {
+  if (Kind == OMPC_DEPEND_unknown || Kind == OMPC_DEPEND_source ||
+      Kind == OMPC_DEPEND_sink) {
     unsigned Except[] = {OMPC_DEPEND_source, OMPC_DEPEND_sink};
     Diag(KindKwLoc, diag::err_omp_unexpected_clause_value)
         << getListOfPossibleValues(OMPC_depend, /*First=*/0,
@@ -15260,7 +15261,8 @@ Sema::ActOnOpenMPDependClause(OpenMPDependClauseKind DepKind,
         << "'source' or 'sink'" << getOpenMPClauseName(OMPC_depend);
     return nullptr;
   }
-  if (DSAStack->getCurrentDirective() != OMPD_ordered &&
+  if ((DSAStack->getCurrentDirective() != OMPD_ordered ||
+       DSAStack->getCurrentDirective() == OMPD_depobj) &&
       (DepKind == OMPC_DEPEND_unknown || DepKind == OMPC_DEPEND_source ||
        DepKind == OMPC_DEPEND_sink)) {
     unsigned Except[] = {OMPC_DEPEND_source, OMPC_DEPEND_sink};

clang/test/OpenMP/depobj_messages.cpp

@@ -142,10 +142,10 @@ label1 : {
 #pragma omp parallel depobj(argc) // expected-warning {{extra tokens at the end of '#pragma omp parallel' are ignored}}
   ;
 #pragma omp depobj(x) seq_cst // expected-error {{unexpected OpenMP clause 'seq_cst' in directive '#pragma omp depobj'}}
-#pragma omp depobj(x) depend(in: x)
+#pragma omp depobj(x) depend(source: x) // expected-error {{expected 'in', 'out', 'inout' or 'mutexinoutset' in OpenMP clause 'depend'}}
 #pragma omp depobj(x) update // expected-error {{expected '(' after 'update'}}
 #pragma omp depobj(x) update( // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{expected 'in', 'out', 'inout' or 'mutexinoutset' in OpenMP clause 'update'}}
-#pragma omp depobj(x) update(x // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{expected 'in', 'out', 'inout' or 'mutexinoutset' in OpenMP clause 'update'}}
+#pragma omp depobj(x) update(sink // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{expected 'in', 'out', 'inout' or 'mutexinoutset' in OpenMP clause 'update'}}
 #pragma omp depobj(x) destroy destroy // expected-error {{directive '#pragma omp depobj' cannot contain more than one 'destroy' clause}}
 #pragma omp depobj(x) update(in) update(in) // expected-error {{directive '#pragma omp depobj' cannot contain more than one 'update' clause}}
 #pragma omp depobj(x) depend(in: x) destroy // expected-error {{exactly one of 'depend', 'destroy', or 'update' clauses is expected}}