[PATCH] D21617: [OpenMP] Diagnose missing cases of statements between target and teams directives

[David S via cfe-commits]

davidsh created this revision.
davidsh added reviewers: kkwli0, hubert.reinterpretcast.
davidsh added a subscriber: cfe-commits.

Clang fails to diagnose cases such as 
#pragma omp target
  while(0) {
    #pragma omp teams
    {}
  }


http://reviews.llvm.org/D21617

Files:
  lib/Sema/SemaOpenMP.cpp

Index: lib/Sema/SemaOpenMP.cpp
===================================================================
--- lib/Sema/SemaOpenMP.cpp
+++ lib/Sema/SemaOpenMP.cpp
@@ -6380,6 +6380,10 @@
       }
       assert(I != CS->body_end() && "Not found statement");
       S = *I;
+    } else {
+      auto *OED = dyn_cast<OMPExecutableDirective>(S);
+      if (!OED || !isOpenMPTeamsDirective(OED->getDirectiveKind()))
+        OMPTeamsFound = false;
     }
     if (!OMPTeamsFound) {
       Diag(StartLoc, diag::err_omp_target_contains_not_only_teams);


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