r190183 - OpenMP: Data-sharing attributes analysis and clause 'shared' (fixed test threadprivate_messages.cpp)

Richard Smith metafoo at gmail.com
Wed Apr 23 18:34:39 PDT 2014


Looks good, thanks!

On Wed Apr 23 2014 at 6:08:19 PM, Nico Weber <thakis at chromium.org> wrote:

> On Wed, Apr 23, 2014 at 5:43 PM, Richard Smith <metafoo at gmail.com> wrote:
>
>> On Wed Apr 23 2014 at 5:25:44 PM, Nico Weber <thakis at chromium.org> wrote:
>>
>>> Good question, no idea. Do you want me to do this as part of this patch?
>>>
>>
>> No, I agree with your later comment that this is separate. Better to get
>> all the points where we leak marked with the 'bury' calls first so that we
>> don't regress, then look at fixing them.
>>
>> Please go ahead with your burying patch!
>>
>
> r207056, thanks.
>
> And a follow-up patch:
>
> I looked at the confusing comment, and it looks like the comment was true
> when it was first checked in in
> https://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Frontend/FrontendAction.cpp?revision=88772&view=markup&sortby=log&pathrev=88772but then r110978 changed the order of the statements without updating the
> comment. The if that leaks everything in AST mode even if !DisableFree was
> there in the original checkin already.
>
> (The resetAndLeak machinery was added in r128011.)
>
> The attached patch fixes the comment, changes the bury branch to match the
> order in the reseting branch (to match the new comment), and only leaks
> objects in the AST case if DisableFree and relies on regular destructor
> ordering for destruction on the other case. All tests seem to pass with
> this patch.
>
>
>>
>>> If I just add a "if !disable free, reset all the leaked bits in that if
>>> instead", then one of the module tests fails, due to
>>>
>>>    221   // Tell the SemaConsumer to forget about us; we're going out
>>> of scope.
>>>    222   if (SemaConsumer *SC = dyn_cast<SemaConsumer>(&Consumer))
>>> -> 223     SC->ForgetSema();
>>>
>>> running – the consumer was already reset earlier
>>> in FrontendAction::EndSourceFile().
>>>
>>> There's also this comment saying that the consumer needs to be reset
>>> before the AST because destructor ordering, and then code below that leaks
>>> the consumer before the AST, but the !DisableFree branch resets the ASET
>>> before resetting the consumer:
>>>
>>>   // Release the consumer and the AST, in that order since the consumer
>>> may
>>>   // perform actions in its destructor which require the context.
>>>   //
>>>   // FIXME: There is more per-file stuff we could just drop here?
>>>   bool DisableFree = CI.getFrontendOpts().DisableFree;
>>>   if (DisableFree) {
>>>     BuryPointer(CI.takeASTConsumer());
>>>     if (!isCurrentFileAST()) {
>>>       CI.resetAndLeakSema();
>>>       CI.resetAndLeakASTContext();
>>>     }
>>>   } else {
>>>     if (!isCurrentFileAST()) {
>>>       CI.setSema(0);
>>>       CI.setASTContext(0);
>>>     }
>>>     CI.setASTConsumer(0);
>>>   }
>>>
>>>
>>> If you want, I can poke at that some more, but that seems a separate
>>> issue from burying the sema if we're about to leak it.
>>>
>>>
>>>
>>> On Wed, Apr 23, 2014 at 4:57 PM, Richard Smith <metafoo at gmail.com>wrote:
>>>
>>>> Why are we leaking a bunch of stuff here? If we're not using
>>>> -disable-free, we should be cleaning up after ourselves.
>>>>
>>>>
>>>> On Wed Apr 23 2014 at 4:36:23 PM, Nico Weber <thakis at chromium.org>
>>>> wrote:
>>>>
>>>>> (pretend that resetAndLeakSema() is a one-liner saying
>>>>> "BuryPointer(TheSema.release())")
>>>>>
>>>>>
>>>>> On Wed, Apr 23, 2014 at 4:34 PM, Nico Weber <thakis at chromium.org>wrote:
>>>>>
>>>>>> On Wed, Apr 23, 2014 at 3:46 PM, Richard Smith <richard at metafoo.co.uk
>>>>>> > wrote:
>>>>>>
>>>>>>> On Wed, Apr 23, 2014 at 3:21 PM, Nico Weber <thakis at chromium.org>wrote:
>>>>>>>
>>>>>>>> Hi Alexey,
>>>>>>>>
>>>>>>>> (below)
>>>>>>>>
>>>>>>>> On Fri, Sep 6, 2013 at 11:03 AM, Alexey Bataev <
>>>>>>>> a.bataev at hotmail.com> wrote:
>>>>>>>>
>>>>>>>>> Author: abataev
>>>>>>>>> Date: Fri Sep  6 13:03:48 2013
>>>>>>>>> New Revision: 190183
>>>>>>>>>
>>>>>>>>> URL: http://llvm.org/viewvc/llvm-project?rev=190183&view=rev
>>>>>>>>> Log:
>>>>>>>>> OpenMP: Data-sharing attributes analysis and clause 'shared'
>>>>>>>>> (fixed test threadprivate_messages.cpp)
>>>>>>>>>
>>>>>>>>> Added:
>>>>>>>>>     cfe/trunk/test/OpenMP/parallel_messages.cpp   (with props)
>>>>>>>>>     cfe/trunk/test/OpenMP/parallel_shared_messages.cpp   (with
>>>>>>>>> props)
>>>>>>>>> Modified:
>>>>>>>>>     cfe/trunk/include/clang/AST/RecursiveASTVisitor.h
>>>>>>>>>     cfe/trunk/include/clang/AST/StmtOpenMP.h
>>>>>>>>>     cfe/trunk/include/clang/Basic/CapturedStmt.h
>>>>>>>>>     cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td
>>>>>>>>>     cfe/trunk/include/clang/Basic/OpenMPKinds.def
>>>>>>>>>     cfe/trunk/include/clang/Sema/Scope.h
>>>>>>>>>     cfe/trunk/include/clang/Sema/ScopeInfo.h
>>>>>>>>>     cfe/trunk/include/clang/Sema/Sema.h
>>>>>>>>>     cfe/trunk/lib/AST/Stmt.cpp
>>>>>>>>>     cfe/trunk/lib/AST/StmtPrinter.cpp
>>>>>>>>>     cfe/trunk/lib/AST/StmtProfile.cpp
>>>>>>>>>     cfe/trunk/lib/CodeGen/CGStmt.cpp
>>>>>>>>>     cfe/trunk/lib/Parse/ParseOpenMP.cpp
>>>>>>>>>     cfe/trunk/lib/Sema/Sema.cpp
>>>>>>>>>     cfe/trunk/lib/Sema/SemaOpenMP.cpp
>>>>>>>>>     cfe/trunk/lib/Sema/TreeTransform.h
>>>>>>>>>     cfe/trunk/lib/Serialization/ASTReaderStmt.cpp
>>>>>>>>>     cfe/trunk/lib/Serialization/ASTWriterStmt.cpp
>>>>>>>>>     cfe/trunk/test/OpenMP/openmp_common.c
>>>>>>>>>     cfe/trunk/test/OpenMP/parallel_default_messages.cpp
>>>>>>>>>     cfe/trunk/test/OpenMP/parallel_private_messages.cpp
>>>>>>>>>     cfe/trunk/tools/libclang/CIndex.cpp
>>>>>>>>>     cfe/trunk/tools/libclang/RecursiveASTVisitor.h
>>>>>>>>>
>>>>>>>>> Modified: cfe/trunk/include/clang/AST/RecursiveASTVisitor.h
>>>>>>>>> URL:
>>>>>>>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/AST/RecursiveASTVisitor.h?rev=190183&r1=190182&r2=190183&view=diff
>>>>>>>>>
>>>>>>>>> ==============================================================================
>>>>>>>>> --- cfe/trunk/include/clang/AST/RecursiveASTVisitor.h (original)
>>>>>>>>> +++ cfe/trunk/include/clang/AST/RecursiveASTVisitor.h Fri Sep  6
>>>>>>>>> 13:03:48 2013
>>>>>>>>> @@ -2346,12 +2346,17 @@ bool RecursiveASTVisitor<Derived>::Visit
>>>>>>>>>      TraverseStmt(*I);
>>>>>>>>>
>>>>>>>>>  template<typename Derived>
>>>>>>>>> -bool RecursiveASTVisitor<Derived>::VisitOMPPrivateClause(
>>>>>>>>> -
>>>>>>>>>  OMPPrivateClause *C) {
>>>>>>>>> +bool
>>>>>>>>> RecursiveASTVisitor<Derived>::VisitOMPPrivateClause(OMPPrivateClause *C) {
>>>>>>>>>    PROCESS_OMP_CLAUSE_LIST(OMPPrivateClause, C)
>>>>>>>>>    return true;
>>>>>>>>>  }
>>>>>>>>>
>>>>>>>>> +template<typename Derived>
>>>>>>>>> +bool
>>>>>>>>> RecursiveASTVisitor<Derived>::VisitOMPSharedClause(OMPSharedClause *C) {
>>>>>>>>> +  PROCESS_OMP_CLAUSE_LIST(OMPSharedClause, C)
>>>>>>>>> +  return true;
>>>>>>>>> +}
>>>>>>>>> +
>>>>>>>>>  #undef PROCESS_OMP_CLAUSE_LIST
>>>>>>>>>
>>>>>>>>>  // FIXME: look at the following tricky-seeming exprs to see if we
>>>>>>>>>
>>>>>>>>> Modified: cfe/trunk/include/clang/AST/StmtOpenMP.h
>>>>>>>>> URL:
>>>>>>>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/AST/StmtOpenMP.h?rev=190183&r1=190182&r2=190183&view=diff
>>>>>>>>>
>>>>>>>>> ==============================================================================
>>>>>>>>> --- cfe/trunk/include/clang/AST/StmtOpenMP.h (original)
>>>>>>>>> +++ cfe/trunk/include/clang/AST/StmtOpenMP.h Fri Sep  6 13:03:48
>>>>>>>>> 2013
>>>>>>>>> @@ -249,6 +249,63 @@ public:
>>>>>>>>>    }
>>>>>>>>>  };
>>>>>>>>>
>>>>>>>>> +/// \brief This represents clause 'shared' in the '#pragma omp
>>>>>>>>> ...' directives.
>>>>>>>>> +///
>>>>>>>>> +/// \code
>>>>>>>>> +/// #pragma omp parallel shared(a,b)
>>>>>>>>> +/// \endcode
>>>>>>>>> +/// In this example directive '#pragma omp parallel' has clause
>>>>>>>>> 'shared'
>>>>>>>>> +/// with the variables 'a' and 'b'.
>>>>>>>>> +///
>>>>>>>>> +class OMPSharedClause : public OMPClause, public
>>>>>>>>> OMPVarList<OMPSharedClause> {
>>>>>>>>> +  /// \brief Build clause with number of variables \a N.
>>>>>>>>> +  ///
>>>>>>>>> +  /// \param StartLoc Starting location of the clause.
>>>>>>>>> +  /// \param LParenLoc Location of '('.
>>>>>>>>> +  /// \param EndLoc Ending location of the clause.
>>>>>>>>> +  /// \param N Number of the variables in the clause.
>>>>>>>>> +  ///
>>>>>>>>> +  OMPSharedClause(SourceLocation StartLoc, SourceLocation
>>>>>>>>> LParenLoc,
>>>>>>>>> +                  SourceLocation EndLoc, unsigned N)
>>>>>>>>> +    : OMPClause(OMPC_shared, StartLoc, EndLoc),
>>>>>>>>> +      OMPVarList<OMPSharedClause>(LParenLoc, N) { }
>>>>>>>>> +
>>>>>>>>> +  /// \brief Build an empty clause.
>>>>>>>>> +  ///
>>>>>>>>> +  /// \param N Number of variables.
>>>>>>>>> +  ///
>>>>>>>>> +  explicit OMPSharedClause(unsigned N)
>>>>>>>>> +    : OMPClause(OMPC_private, SourceLocation(), SourceLocation()),
>>>>>>>>> +      OMPVarList<OMPSharedClause>(SourceLocation(), N) { }
>>>>>>>>> +public:
>>>>>>>>> +  /// \brief Creates clause with a list of variables \a VL.
>>>>>>>>> +  ///
>>>>>>>>> +  /// \param C AST context.
>>>>>>>>> +  /// \param StartLoc Starting location of the clause.
>>>>>>>>> +  /// \param LParenLoc Location of '('.
>>>>>>>>> +  /// \param EndLoc Ending location of the clause.
>>>>>>>>> +  /// \param VL List of references to the variables.
>>>>>>>>> +  ///
>>>>>>>>> +  static OMPSharedClause *Create(const ASTContext &C,
>>>>>>>>> SourceLocation StartLoc,
>>>>>>>>> +                                 SourceLocation LParenLoc,
>>>>>>>>> +                                 SourceLocation EndLoc,
>>>>>>>>> ArrayRef<Expr *> VL);
>>>>>>>>> +  /// \brief Creates an empty clause with \a N variables.
>>>>>>>>> +  ///
>>>>>>>>> +  /// \param C AST context.
>>>>>>>>> +  /// \param N The number of variables.
>>>>>>>>> +  ///
>>>>>>>>> +  static OMPSharedClause *CreateEmpty(const ASTContext &C,
>>>>>>>>> unsigned N);
>>>>>>>>> +
>>>>>>>>> +  StmtRange children() {
>>>>>>>>> +    return StmtRange(reinterpret_cast<Stmt **>(varlist_begin()),
>>>>>>>>> +                     reinterpret_cast<Stmt **>(varlist_end()));
>>>>>>>>> +  }
>>>>>>>>> +
>>>>>>>>> +  static bool classof(const OMPClause *T) {
>>>>>>>>> +    return T->getClauseKind() == OMPC_shared;
>>>>>>>>> +  }
>>>>>>>>> +};
>>>>>>>>> +
>>>>>>>>>
>>>>>>>>>  //===----------------------------------------------------------------------===//
>>>>>>>>>  // AST classes for directives.
>>>>>>>>>
>>>>>>>>>  //===----------------------------------------------------------------------===//
>>>>>>>>>
>>>>>>>>> Modified: cfe/trunk/include/clang/Basic/CapturedStmt.h
>>>>>>>>> URL:
>>>>>>>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/CapturedStmt.h?rev=190183&r1=190182&r2=190183&view=diff
>>>>>>>>>
>>>>>>>>> ==============================================================================
>>>>>>>>> --- cfe/trunk/include/clang/Basic/CapturedStmt.h (original)
>>>>>>>>> +++ cfe/trunk/include/clang/Basic/CapturedStmt.h Fri Sep  6
>>>>>>>>> 13:03:48 2013
>>>>>>>>> @@ -15,7 +15,8 @@ namespace clang {
>>>>>>>>>
>>>>>>>>>  /// \brief The different kinds of captured statement.
>>>>>>>>>  enum CapturedRegionKind {
>>>>>>>>> -  CR_Default
>>>>>>>>> +  CR_Default,
>>>>>>>>> +  CR_OpenMP
>>>>>>>>>  };
>>>>>>>>>
>>>>>>>>>  } // end namespace clang
>>>>>>>>>
>>>>>>>>> Modified: cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td
>>>>>>>>> URL:
>>>>>>>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td?rev=190183&r1=190182&r2=190183&view=diff
>>>>>>>>>
>>>>>>>>> ==============================================================================
>>>>>>>>> --- cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td (original)
>>>>>>>>> +++ cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td Fri Sep
>>>>>>>>>  6 13:03:48 2013
>>>>>>>>> @@ -6612,6 +6612,14 @@ def err_omp_clause_ref_type_arg : Error<
>>>>>>>>>    "arguments of OpenMP clause '%0' cannot be of reference type
>>>>>>>>> %1">;
>>>>>>>>>  def err_omp_threadprivate_incomplete_type : Error<
>>>>>>>>>    "threadprivate variable with incomplete type %0">;
>>>>>>>>> +def err_omp_no_dsa_for_variable : Error <
>>>>>>>>> +  "variable %0 must have explicitly specified data sharing
>>>>>>>>> attributes">;
>>>>>>>>> +def err_omp_wrong_dsa : Error<
>>>>>>>>> +  "%0 variable cannot be %1">;
>>>>>>>>> +def note_omp_explicit_dsa : Note <
>>>>>>>>> +  "defined as %0">;
>>>>>>>>> +def note_omp_predetermined_dsa : Note <
>>>>>>>>> +  "predetermined as %0">;
>>>>>>>>>  } // end of OpenMP category
>>>>>>>>>
>>>>>>>>>  let CategoryName = "Related Result Type Issue" in {
>>>>>>>>>
>>>>>>>>> Modified: cfe/trunk/include/clang/Basic/OpenMPKinds.def
>>>>>>>>> URL:
>>>>>>>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/OpenMPKinds.def?rev=190183&r1=190182&r2=190183&view=diff
>>>>>>>>>
>>>>>>>>> ==============================================================================
>>>>>>>>> --- cfe/trunk/include/clang/Basic/OpenMPKinds.def (original)
>>>>>>>>> +++ cfe/trunk/include/clang/Basic/OpenMPKinds.def Fri Sep  6
>>>>>>>>> 13:03:48 2013
>>>>>>>>> @@ -33,10 +33,12 @@ OPENMP_DIRECTIVE(task)
>>>>>>>>>  // OpenMP clauses.
>>>>>>>>>  OPENMP_CLAUSE(default, OMPDefaultClause)
>>>>>>>>>  OPENMP_CLAUSE(private, OMPPrivateClause)
>>>>>>>>> +OPENMP_CLAUSE(shared,  OMPSharedClause)
>>>>>>>>>
>>>>>>>>>  // Clauses allowed for OpenMP directives.
>>>>>>>>>  OPENMP_PARALLEL_CLAUSE(default)
>>>>>>>>>  OPENMP_PARALLEL_CLAUSE(private)
>>>>>>>>> +OPENMP_PARALLEL_CLAUSE(shared)
>>>>>>>>>
>>>>>>>>>  // Static attributes for 'default' clause.
>>>>>>>>>  OPENMP_DEFAULT_KIND(none)
>>>>>>>>>
>>>>>>>>> Modified: cfe/trunk/include/clang/Sema/Scope.h
>>>>>>>>> URL:
>>>>>>>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Sema/Scope.h?rev=190183&r1=190182&r2=190183&view=diff
>>>>>>>>>
>>>>>>>>> ==============================================================================
>>>>>>>>> --- cfe/trunk/include/clang/Sema/Scope.h (original)
>>>>>>>>> +++ cfe/trunk/include/clang/Sema/Scope.h Fri Sep  6 13:03:48 2013
>>>>>>>>> @@ -91,7 +91,10 @@ public:
>>>>>>>>>      TryScope = 0x2000,
>>>>>>>>>
>>>>>>>>>      /// \brief This is the scope for a function-level C++ try or
>>>>>>>>> catch scope.
>>>>>>>>> -    FnTryCatchScope = 0x4000
>>>>>>>>> +    FnTryCatchScope = 0x4000,
>>>>>>>>> +
>>>>>>>>> +    /// \brief This is the scope of OpenMP executable directive
>>>>>>>>> +    OpenMPDirectiveScope = 0x8000
>>>>>>>>>    };
>>>>>>>>>  private:
>>>>>>>>>    /// The parent scope for this scope.  This is null for the
>>>>>>>>> translation-unit
>>>>>>>>> @@ -301,7 +304,12 @@ public:
>>>>>>>>>      }
>>>>>>>>>      return false;
>>>>>>>>>    }
>>>>>>>>> -
>>>>>>>>> +
>>>>>>>>> +  /// \brief Determines whether this scope is the OpenMP
>>>>>>>>> directive scope
>>>>>>>>> +  bool isOpenMPDirectiveScope() const {
>>>>>>>>> +    return (getFlags() & Scope::OpenMPDirectiveScope);
>>>>>>>>> +  }
>>>>>>>>> +
>>>>>>>>>    /// \brief Determine whether this scope is a C++ 'try' block.
>>>>>>>>>    bool isTryScope() const { return getFlags() & Scope::TryScope; }
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Modified: cfe/trunk/include/clang/Sema/ScopeInfo.h
>>>>>>>>> URL:
>>>>>>>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Sema/ScopeInfo.h?rev=190183&r1=190182&r2=190183&view=diff
>>>>>>>>>
>>>>>>>>> ==============================================================================
>>>>>>>>> --- cfe/trunk/include/clang/Sema/ScopeInfo.h (original)
>>>>>>>>> +++ cfe/trunk/include/clang/Sema/ScopeInfo.h Fri Sep  6 13:03:48
>>>>>>>>> 2013
>>>>>>>>> @@ -567,6 +567,8 @@ public:
>>>>>>>>>      switch (CapRegionKind) {
>>>>>>>>>      case CR_Default:
>>>>>>>>>        return "default captured statement";
>>>>>>>>> +    case CR_OpenMP:
>>>>>>>>> +      return "OpenMP region";
>>>>>>>>>      }
>>>>>>>>>      llvm_unreachable("Invalid captured region kind!");
>>>>>>>>>    }
>>>>>>>>>
>>>>>>>>> Modified: cfe/trunk/include/clang/Sema/Sema.h
>>>>>>>>> URL:
>>>>>>>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Sema/Sema.h?rev=190183&r1=190182&r2=190183&view=diff
>>>>>>>>>
>>>>>>>>> ==============================================================================
>>>>>>>>> --- cfe/trunk/include/clang/Sema/Sema.h (original)
>>>>>>>>> +++ cfe/trunk/include/clang/Sema/Sema.h Fri Sep  6 13:03:48 2013
>>>>>>>>> @@ -6887,6 +6887,20 @@ public:
>>>>>>>>>                        unsigned SpellingListIndex, bool
>>>>>>>>> IsPackExpansion);
>>>>>>>>>
>>>>>>>>>    // OpenMP directives and clauses.
>>>>>>>>> +private:
>>>>>>>>> +  void *VarDataSharingAttributesStack;
>>>>>>>>> +  /// \brief Initialization of data-sharing attributes stack.
>>>>>>>>> +  void InitDataSharingAttributesStack();
>>>>>>>>> +  void DestroyDataSharingAttributesStack();
>>>>>>>>> +public:
>>>>>>>>> +  /// \brief Called on start of new data sharing attribute block.
>>>>>>>>> +  void StartOpenMPDSABlock(OpenMPDirectiveKind K,
>>>>>>>>> +                           const DeclarationNameInfo &DirName,
>>>>>>>>> +                           Scope *CurScope);
>>>>>>>>> +  /// \brief Called on end of data sharing attribute block.
>>>>>>>>> +  void EndOpenMPDSABlock(Stmt *CurDirective);
>>>>>>>>> +
>>>>>>>>> +  // OpenMP directives and clauses.
>>>>>>>>>    /// \brief Called on correct id-expression from the '#pragma omp
>>>>>>>>>    /// threadprivate'.
>>>>>>>>>    ExprResult ActOnOpenMPIdExpression(Scope *CurScope,
>>>>>>>>> @@ -6936,6 +6950,11 @@ public:
>>>>>>>>>                                        SourceLocation StartLoc,
>>>>>>>>>                                        SourceLocation LParenLoc,
>>>>>>>>>                                        SourceLocation EndLoc);
>>>>>>>>> +  /// \brief Called on well-formed 'shared' clause.
>>>>>>>>> +  OMPClause *ActOnOpenMPSharedClause(ArrayRef<Expr *> VarList,
>>>>>>>>> +                                     SourceLocation StartLoc,
>>>>>>>>> +                                     SourceLocation LParenLoc,
>>>>>>>>> +                                     SourceLocation EndLoc);
>>>>>>>>>
>>>>>>>>>    /// \brief The kind of conversion being performed.
>>>>>>>>>    enum CheckedConversionKind {
>>>>>>>>>
>>>>>>>>> Modified: cfe/trunk/lib/AST/Stmt.cpp
>>>>>>>>> URL:
>>>>>>>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/AST/Stmt.cpp?rev=190183&r1=190182&r2=190183&view=diff
>>>>>>>>>
>>>>>>>>> ==============================================================================
>>>>>>>>> --- cfe/trunk/lib/AST/Stmt.cpp (original)
>>>>>>>>> +++ cfe/trunk/lib/AST/Stmt.cpp Fri Sep  6 13:03:48 2013
>>>>>>>>> @@ -1111,6 +1111,16 @@ bool CapturedStmt::capturesVariable(cons
>>>>>>>>>    return false;
>>>>>>>>>  }
>>>>>>>>>
>>>>>>>>> +StmtRange OMPClause::children() {
>>>>>>>>> +  switch(getClauseKind()) {
>>>>>>>>> +  default : break;
>>>>>>>>> +#define OPENMP_CLAUSE(Name, Class)
>>>>>>>>>         \
>>>>>>>>> +  case OMPC_ ## Name : return static_cast<Class
>>>>>>>>> *>(this)->children();
>>>>>>>>> +#include "clang/Basic/OpenMPKinds.def"
>>>>>>>>> +  }
>>>>>>>>> +  llvm_unreachable("unknown OMPClause");
>>>>>>>>> +}
>>>>>>>>> +
>>>>>>>>>  OMPPrivateClause *OMPPrivateClause::Create(const ASTContext &C,
>>>>>>>>>                                             SourceLocation
>>>>>>>>> StartLoc,
>>>>>>>>>                                             SourceLocation
>>>>>>>>> LParenLoc,
>>>>>>>>> @@ -1131,6 +1141,26 @@ OMPPrivateClause *OMPPrivateClause::Crea
>>>>>>>>>    return new (Mem) OMPPrivateClause(N);
>>>>>>>>>  }
>>>>>>>>>
>>>>>>>>> +OMPSharedClause *OMPSharedClause::Create(const ASTContext &C,
>>>>>>>>> +                                         SourceLocation StartLoc,
>>>>>>>>> +                                         SourceLocation LParenLoc,
>>>>>>>>> +                                         SourceLocation EndLoc,
>>>>>>>>> +                                         ArrayRef<Expr *> VL) {
>>>>>>>>> +  void *Mem = C.Allocate(sizeof(OMPSharedClause) + sizeof(Expr *)
>>>>>>>>> * VL.size(),
>>>>>>>>> +                         llvm::alignOf<OMPSharedClause>());
>>>>>>>>> +  OMPSharedClause *Clause = new (Mem) OMPSharedClause(StartLoc,
>>>>>>>>> LParenLoc,
>>>>>>>>> +                                                      EndLoc,
>>>>>>>>> VL.size());
>>>>>>>>> +  Clause->setVarRefs(VL);
>>>>>>>>> +  return Clause;
>>>>>>>>> +}
>>>>>>>>> +
>>>>>>>>> +OMPSharedClause *OMPSharedClause::CreateEmpty(const ASTContext &C,
>>>>>>>>> +                                              unsigned N) {
>>>>>>>>> +  void *Mem = C.Allocate(sizeof(OMPSharedClause) + sizeof(Expr *)
>>>>>>>>> * N,
>>>>>>>>> +                         llvm::alignOf<OMPSharedClause>());
>>>>>>>>> +  return new (Mem) OMPSharedClause(N);
>>>>>>>>> +}
>>>>>>>>> +
>>>>>>>>>  void OMPExecutableDirective::setClauses(ArrayRef<OMPClause *>
>>>>>>>>> Clauses) {
>>>>>>>>>    assert(Clauses.size() == this->Clauses.size() &&
>>>>>>>>>           "Number of clauses is not the same as the preallocated
>>>>>>>>> buffer");
>>>>>>>>>
>>>>>>>>> Modified: cfe/trunk/lib/AST/StmtPrinter.cpp
>>>>>>>>> URL:
>>>>>>>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/AST/StmtPrinter.cpp?rev=190183&r1=190182&r2=190183&view=diff
>>>>>>>>>
>>>>>>>>> ==============================================================================
>>>>>>>>> --- cfe/trunk/lib/AST/StmtPrinter.cpp (original)
>>>>>>>>> +++ cfe/trunk/lib/AST/StmtPrinter.cpp Fri Sep  6 13:03:48 2013
>>>>>>>>> @@ -614,6 +614,14 @@ void OMPClausePrinter::VisitOMPPrivateCl
>>>>>>>>>    }
>>>>>>>>>  }
>>>>>>>>>
>>>>>>>>> +void OMPClausePrinter::VisitOMPSharedClause(OMPSharedClause
>>>>>>>>> *Node) {
>>>>>>>>> +  if (!Node->varlist_empty()) {
>>>>>>>>> +    OS << "shared";
>>>>>>>>> +    PROCESS_OMP_CLAUSE_LIST(OMPSharedClause, Node, '(')
>>>>>>>>> +    OS << ")";
>>>>>>>>> +  }
>>>>>>>>> +}
>>>>>>>>> +
>>>>>>>>>  #undef PROCESS_OMP_CLAUSE_LIST
>>>>>>>>>  }
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Modified: cfe/trunk/lib/AST/StmtProfile.cpp
>>>>>>>>> URL:
>>>>>>>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/AST/StmtProfile.cpp?rev=190183&r1=190182&r2=190183&view=diff
>>>>>>>>>
>>>>>>>>> ==============================================================================
>>>>>>>>> --- cfe/trunk/lib/AST/StmtProfile.cpp (original)
>>>>>>>>> +++ cfe/trunk/lib/AST/StmtProfile.cpp Fri Sep  6 13:03:48 2013
>>>>>>>>> @@ -272,6 +272,9 @@ void OMPClauseProfiler::VisitOMPDefaultC
>>>>>>>>>  void OMPClauseProfiler::VisitOMPPrivateClause(const
>>>>>>>>> OMPPrivateClause *C) {
>>>>>>>>>    PROCESS_OMP_CLAUSE_LIST(OMPPrivateClause, C)
>>>>>>>>>  }
>>>>>>>>> +void OMPClauseProfiler::VisitOMPSharedClause(const
>>>>>>>>> OMPSharedClause *C) {
>>>>>>>>> +  PROCESS_OMP_CLAUSE_LIST(OMPSharedClause, C)
>>>>>>>>> +}
>>>>>>>>>  #undef PROCESS_OMP_CLAUSE_LIST
>>>>>>>>>  }
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Modified: cfe/trunk/lib/CodeGen/CGStmt.cpp
>>>>>>>>> URL:
>>>>>>>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGStmt.cpp?rev=190183&r1=190182&r2=190183&view=diff
>>>>>>>>>
>>>>>>>>> ==============================================================================
>>>>>>>>> --- cfe/trunk/lib/CodeGen/CGStmt.cpp (original)
>>>>>>>>> +++ cfe/trunk/lib/CodeGen/CGStmt.cpp Fri Sep  6 13:03:48 2013
>>>>>>>>> @@ -136,8 +136,10 @@ void CodeGenFunction::EmitStmt(const Stm
>>>>>>>>>    case Stmt::SwitchStmtClass:
>>>>>>>>> EmitSwitchStmt(cast<SwitchStmt>(*S));     break;
>>>>>>>>>    case Stmt::GCCAsmStmtClass:   // Intentional fall-through.
>>>>>>>>>    case Stmt::MSAsmStmtClass:    EmitAsmStmt(cast<AsmStmt>(*S));
>>>>>>>>>         break;
>>>>>>>>> -  case Stmt::CapturedStmtClass:
>>>>>>>>> -    EmitCapturedStmt(cast<CapturedStmt>(*S), CR_Default);
>>>>>>>>> +  case Stmt::CapturedStmtClass: {
>>>>>>>>> +    const CapturedStmt *CS = cast<CapturedStmt>(S);
>>>>>>>>> +    EmitCapturedStmt(*CS, CS->getCapturedRegionKind());
>>>>>>>>> +    }
>>>>>>>>>      break;
>>>>>>>>>    case Stmt::ObjCAtTryStmtClass:
>>>>>>>>>      EmitObjCAtTryStmt(cast<ObjCAtTryStmt>(*S));
>>>>>>>>>
>>>>>>>>> Modified: cfe/trunk/lib/Parse/ParseOpenMP.cpp
>>>>>>>>> URL:
>>>>>>>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Parse/ParseOpenMP.cpp?rev=190183&r1=190182&r2=190183&view=diff
>>>>>>>>>
>>>>>>>>> ==============================================================================
>>>>>>>>> --- cfe/trunk/lib/Parse/ParseOpenMP.cpp (original)
>>>>>>>>> +++ cfe/trunk/lib/Parse/ParseOpenMP.cpp Fri Sep  6 13:03:48 2013
>>>>>>>>> @@ -84,11 +84,14 @@ StmtResult Parser::ParseOpenMPDeclarativ
>>>>>>>>>    SmallVector<OMPClause *, 5> Clauses;
>>>>>>>>>    SmallVector<llvm::PointerIntPair<OMPClause *, 1, bool>,
>>>>>>>>> NUM_OPENMP_CLAUSES>
>>>>>>>>>
>>>>>>>>> FirstClauses(NUM_OPENMP_CLAUSES);
>>>>>>>>> -  const unsigned ScopeFlags = Scope::FnScope | Scope::DeclScope;
>>>>>>>>> +  const unsigned ScopeFlags = Scope::FnScope | Scope::DeclScope |
>>>>>>>>> +                              Scope::OpenMPDirectiveScope;
>>>>>>>>>    SourceLocation Loc = ConsumeToken(), EndLoc;
>>>>>>>>>    OpenMPDirectiveKind DKind = Tok.isAnnotation() ?
>>>>>>>>>                                    OMPD_unknown :
>>>>>>>>>
>>>>>>>>>  getOpenMPDirectiveKind(PP.getSpelling(Tok));
>>>>>>>>> +  // Name of critical directive.
>>>>>>>>> +  DeclarationNameInfo DirName;
>>>>>>>>>    StmtResult Directive = StmtError();
>>>>>>>>>
>>>>>>>>>    switch (DKind) {
>>>>>>>>> @@ -111,6 +114,9 @@ StmtResult Parser::ParseOpenMPDeclarativ
>>>>>>>>>      break;
>>>>>>>>>    case OMPD_parallel: {
>>>>>>>>>      ConsumeToken();
>>>>>>>>> +
>>>>>>>>> +    Actions.StartOpenMPDSABlock(DKind, DirName,
>>>>>>>>> Actions.getCurScope());
>>>>>>>>> +
>>>>>>>>>      while (Tok.isNot(tok::annot_pragma_openmp_end)) {
>>>>>>>>>        OpenMPClauseKind CKind = Tok.isAnnotation() ?
>>>>>>>>>                                    OMPC_unknown :
>>>>>>>>> @@ -138,7 +144,7 @@ StmtResult Parser::ParseOpenMPDeclarativ
>>>>>>>>>      {
>>>>>>>>>        // The body is a block scope like in Lambdas and Blocks.
>>>>>>>>>        Sema::CompoundScopeRAII CompoundScope(Actions);
>>>>>>>>> -      Actions.ActOnCapturedRegionStart(Loc, getCurScope(),
>>>>>>>>> CR_Default, 1);
>>>>>>>>> +      Actions.ActOnCapturedRegionStart(Loc, getCurScope(),
>>>>>>>>> CR_OpenMP, 1);
>>>>>>>>>        Actions.ActOnStartOfCompoundStmt();
>>>>>>>>>        // Parse statement
>>>>>>>>>        AssociatedStmt = ParseStatement();
>>>>>>>>> @@ -157,6 +163,7 @@ StmtResult Parser::ParseOpenMPDeclarativ
>>>>>>>>>                                                           Loc,
>>>>>>>>> EndLoc);
>>>>>>>>>
>>>>>>>>>      // Exit scope.
>>>>>>>>> +    Actions.EndOpenMPDSABlock(Directive.get());
>>>>>>>>>      OMPDirectiveScope.Exit();
>>>>>>>>>      }
>>>>>>>>>      break;
>>>>>>>>> @@ -245,7 +252,7 @@ bool Parser::ParseOpenMPSimpleVarList(Op
>>>>>>>>>  /// \brief Parsing of OpenMP clauses.
>>>>>>>>>  ///
>>>>>>>>>  ///    clause:
>>>>>>>>> -///       default-clause|private-clause
>>>>>>>>> +///       default-clause|private-clause|shared-clause
>>>>>>>>>  ///
>>>>>>>>>  OMPClause *Parser::ParseOpenMPClause(OpenMPDirectiveKind DKind,
>>>>>>>>>                                       OpenMPClauseKind CKind, bool
>>>>>>>>> FirstClause) {
>>>>>>>>> @@ -271,6 +278,7 @@ OMPClause *Parser::ParseOpenMPClause(Ope
>>>>>>>>>      Clause = ParseOpenMPSimpleClause(CKind);
>>>>>>>>>      break;
>>>>>>>>>    case OMPC_private:
>>>>>>>>> +  case OMPC_shared:
>>>>>>>>>      Clause = ParseOpenMPVarListClause(CKind);
>>>>>>>>>      break;
>>>>>>>>>    case OMPC_unknown:
>>>>>>>>> @@ -322,6 +330,8 @@ OMPClause *Parser::ParseOpenMPSimpleClau
>>>>>>>>>  ///
>>>>>>>>>  ///    private-clause:
>>>>>>>>>  ///       'private' '(' list ')'
>>>>>>>>> +///    shared-clause:
>>>>>>>>> +///       'shared' '(' list ')'
>>>>>>>>>  ///
>>>>>>>>>  OMPClause *Parser::ParseOpenMPVarListClause(OpenMPClauseKind
>>>>>>>>> Kind) {
>>>>>>>>>    SourceLocation Loc = Tok.getLocation();
>>>>>>>>>
>>>>>>>>> Modified: cfe/trunk/lib/Sema/Sema.cpp
>>>>>>>>> URL:
>>>>>>>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Sema/Sema.cpp?rev=190183&r1=190182&r2=190183&view=diff
>>>>>>>>>
>>>>>>>>> ==============================================================================
>>>>>>>>> --- cfe/trunk/lib/Sema/Sema.cpp (original)
>>>>>>>>> +++ cfe/trunk/lib/Sema/Sema.cpp Fri Sep  6 13:03:48 2013
>>>>>>>>> @@ -90,7 +90,8 @@ Sema::Sema(Preprocessor &pp, ASTContext
>>>>>>>>>      AccessCheckingSFINAE(false),
>>>>>>>>> InNonInstantiationSFINAEContext(false),
>>>>>>>>>      NonInstantiationEntries(0), ArgumentPackSubstitutionIndex(-1),
>>>>>>>>>      CurrentInstantiationScope(0), TyposCorrected(0),
>>>>>>>>> -    AnalysisWarnings(*this), CurScope(0), Ident_super(0),
>>>>>>>>> Ident___float128(0)
>>>>>>>>> +    AnalysisWarnings(*this), VarDataSharingAttributesStack(0),
>>>>>>>>> CurScope(0),
>>>>>>>>> +    Ident_super(0), Ident___float128(0)
>>>>>>>>>  {
>>>>>>>>>    TUScope = 0;
>>>>>>>>>
>>>>>>>>> @@ -113,6 +114,9 @@ Sema::Sema(Preprocessor &pp, ASTContext
>>>>>>>>>                                            false, 0, false));
>>>>>>>>>
>>>>>>>>>    FunctionScopes.push_back(new FunctionScopeInfo(Diags));
>>>>>>>>> +
>>>>>>>>> +  // Initilization of data sharing attributes stack for OpenMP
>>>>>>>>> +  InitDataSharingAttributesStack();
>>>>>>>>>  }
>>>>>>>>>
>>>>>>>>>  void Sema::Initialize() {
>>>>>>>>> @@ -199,6 +203,9 @@ Sema::~Sema() {
>>>>>>>>>    // If Sema's ExternalSource is the multiplexer - we own it.
>>>>>>>>>    if (isMultiplexExternalSource)
>>>>>>>>>      delete ExternalSource;
>>>>>>>>> +
>>>>>>>>> +  // Destroys data sharing attributes stack for OpenMP
>>>>>>>>> +  DestroyDataSharingAttributesStack();
>>>>>>>>>  }
>>>>>>>>>
>>>>>>>>>  /// makeUnavailableInSystemHeader - There is an error in the
>>>>>>>>> current
>>>>>>>>>
>>>>>>>>> Modified: cfe/trunk/lib/Sema/SemaOpenMP.cpp
>>>>>>>>> URL:
>>>>>>>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Sema/SemaOpenMP.cpp?rev=190183&r1=190182&r2=190183&view=diff
>>>>>>>>>
>>>>>>>>> ==============================================================================
>>>>>>>>> --- cfe/trunk/lib/Sema/SemaOpenMP.cpp (original)
>>>>>>>>> +++ cfe/trunk/lib/Sema/SemaOpenMP.cpp Fri Sep  6 13:03:48 2013
>>>>>>>>> @@ -27,6 +27,325 @@
>>>>>>>>>  #include "clang/Sema/ScopeInfo.h"
>>>>>>>>>  using namespace clang;
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> +//===----------------------------------------------------------------------===//
>>>>>>>>> +// Stack of data-sharing attributes for variables
>>>>>>>>>
>>>>>>>>> +//===----------------------------------------------------------------------===//
>>>>>>>>> +
>>>>>>>>> +namespace {
>>>>>>>>> +/// \brief Default data sharing attributes, which can be applied
>>>>>>>>> to directive.
>>>>>>>>> +enum DefaultDataSharingAttributes {
>>>>>>>>> +  DSA_unspecified = 0,   /// \brief Data sharing attribute not
>>>>>>>>> specified.
>>>>>>>>> +  DSA_none = 1 << 0,     /// \brief Default data sharing
>>>>>>>>> attribute 'none'.
>>>>>>>>> +  DSA_shared = 1 << 1    /// \brief Default data sharing
>>>>>>>>> attribute 'shared'.
>>>>>>>>> +};
>>>>>>>>> +
>>>>>>>>> +/// \brief Stack for tracking declarations used in OpenMP
>>>>>>>>> directives and
>>>>>>>>> +/// clauses and their data-sharing attributes.
>>>>>>>>> +class DSAStackTy {
>>>>>>>>> +public:
>>>>>>>>> +  struct DSAVarData {
>>>>>>>>> +    OpenMPDirectiveKind DKind;
>>>>>>>>> +    OpenMPClauseKind CKind;
>>>>>>>>> +    DeclRefExpr *RefExpr;
>>>>>>>>> +    DSAVarData() : DKind(OMPD_unknown), CKind(OMPC_unknown),
>>>>>>>>> RefExpr(0) { }
>>>>>>>>> +  };
>>>>>>>>> +private:
>>>>>>>>> +  struct DSAInfo {
>>>>>>>>> +    OpenMPClauseKind Attributes;
>>>>>>>>> +    DeclRefExpr *RefExpr;
>>>>>>>>> +  };
>>>>>>>>> +  typedef llvm::SmallDenseMap<VarDecl *, DSAInfo, 64> DeclSAMapTy;
>>>>>>>>> +
>>>>>>>>> +  struct SharingMapTy {
>>>>>>>>> +    DeclSAMapTy SharingMap;
>>>>>>>>> +    DefaultDataSharingAttributes DefaultAttr;
>>>>>>>>> +    OpenMPDirectiveKind Directive;
>>>>>>>>> +    DeclarationNameInfo DirectiveName;
>>>>>>>>> +    Scope *CurScope;
>>>>>>>>> +    SharingMapTy(OpenMPDirectiveKind DKind,
>>>>>>>>> +                 const DeclarationNameInfo &Name,
>>>>>>>>> +                 Scope *CurScope)
>>>>>>>>> +      : SharingMap(), DefaultAttr(DSA_unspecified),
>>>>>>>>> Directive(DKind),
>>>>>>>>> +        DirectiveName(Name), CurScope(CurScope) { }
>>>>>>>>> +    SharingMapTy()
>>>>>>>>> +      : SharingMap(), DefaultAttr(DSA_unspecified),
>>>>>>>>> +        Directive(OMPD_unknown), DirectiveName(),
>>>>>>>>> +        CurScope(0) { }
>>>>>>>>> +  };
>>>>>>>>> +
>>>>>>>>> +  typedef SmallVector<SharingMapTy, 64> StackTy;
>>>>>>>>> +
>>>>>>>>> +  /// \brief Stack of used declaration and their data-sharing
>>>>>>>>> attributes.
>>>>>>>>> +  StackTy Stack;
>>>>>>>>> +  Sema &Actions;
>>>>>>>>> +
>>>>>>>>> +  typedef SmallVector<SharingMapTy, 8>::reverse_iterator
>>>>>>>>> reverse_iterator;
>>>>>>>>> +
>>>>>>>>> +  DSAVarData getDSA(StackTy::reverse_iterator Iter, VarDecl *D);
>>>>>>>>> +public:
>>>>>>>>> +  explicit DSAStackTy(Sema &S) : Stack(1), Actions(S) { }
>>>>>>>>> +
>>>>>>>>> +  void push(OpenMPDirectiveKind DKind, const DeclarationNameInfo
>>>>>>>>> &DirName,
>>>>>>>>> +            Scope *CurScope) {
>>>>>>>>> +    Stack.push_back(SharingMapTy(DKind, DirName, CurScope));
>>>>>>>>> +  }
>>>>>>>>> +
>>>>>>>>> +  void pop() {
>>>>>>>>> +    assert(Stack.size() > 1 && "Data-sharing attributes stack is
>>>>>>>>> empty!");
>>>>>>>>> +    Stack.pop_back();
>>>>>>>>> +  }
>>>>>>>>> +
>>>>>>>>> +  /// \brief Adds explicit data sharing attribute to the
>>>>>>>>> specified declaration.
>>>>>>>>> +  void addDSA(VarDecl *D, DeclRefExpr *E, OpenMPClauseKind A);
>>>>>>>>> +
>>>>>>>>> +  /// \brief Checks if the variable is a local for OpenMP region.
>>>>>>>>> +  bool isOpenMPLocal(VarDecl *D);
>>>>>>>>> +
>>>>>>>>> +  /// \brief Returns data sharing attributes from top of the
>>>>>>>>> stack for the
>>>>>>>>> +  /// specified declaration.
>>>>>>>>> +  DSAVarData getTopDSA(VarDecl *D);
>>>>>>>>> +  /// \brief Returns data-sharing attributes for the specified
>>>>>>>>> declaration.
>>>>>>>>> +  DSAVarData getImplicitDSA(VarDecl *D);
>>>>>>>>> +
>>>>>>>>> +  /// \brief Returns currently analyzed directive.
>>>>>>>>> +  OpenMPDirectiveKind getCurrentDirective() const {
>>>>>>>>> +    return Stack.back().Directive;
>>>>>>>>> +  }
>>>>>>>>> +
>>>>>>>>> +  /// \brief Set default data sharing attribute to none.
>>>>>>>>> +  void setDefaultDSANone() { Stack.back().DefaultAttr = DSA_none;
>>>>>>>>> }
>>>>>>>>> +  /// \brief Set default data sharing attribute to shared.
>>>>>>>>> +  void setDefaultDSAShared() { Stack.back().DefaultAttr =
>>>>>>>>> DSA_shared; }
>>>>>>>>> +
>>>>>>>>> +  DefaultDataSharingAttributes getDefaultDSA() const {
>>>>>>>>> +    return Stack.back().DefaultAttr;
>>>>>>>>> +  }
>>>>>>>>> +
>>>>>>>>> +  Scope *getCurScope() { return Stack.back().CurScope; }
>>>>>>>>> +};
>>>>>>>>> +} // end anonymous namespace.
>>>>>>>>> +
>>>>>>>>> +DSAStackTy::DSAVarData
>>>>>>>>> DSAStackTy::getDSA(StackTy::reverse_iterator Iter,
>>>>>>>>> +                                          VarDecl *D) {
>>>>>>>>> +  DSAVarData DVar;
>>>>>>>>> +  if (Iter == Stack.rend() - 1) {
>>>>>>>>> +    // OpenMP [2.9.1.1, Data-sharing Attribute Rules for
>>>>>>>>> Variables Referenced
>>>>>>>>> +    // in a region but not in construct]
>>>>>>>>> +    //  File-scope or namespace-scope variables referenced in
>>>>>>>>> called routines
>>>>>>>>> +    //  in the region are shared unless they appear in a
>>>>>>>>> threadprivate
>>>>>>>>> +    //  directive.
>>>>>>>>> +    // TODO
>>>>>>>>> +    if (!D->isFunctionOrMethodVarDecl())
>>>>>>>>> +      DVar.CKind = OMPC_shared;
>>>>>>>>> +
>>>>>>>>> +    return DVar;
>>>>>>>>> +  }
>>>>>>>>> +  DVar.DKind = Iter->Directive;
>>>>>>>>> +  // Explicitly specified attributes and local variables with
>>>>>>>>> predetermined
>>>>>>>>> +  // attributes.
>>>>>>>>> +  if (Iter->SharingMap.count(D)) {
>>>>>>>>> +    DVar.RefExpr = Iter->SharingMap[D].RefExpr;
>>>>>>>>> +    DVar.CKind = Iter->SharingMap[D].Attributes;
>>>>>>>>> +    return DVar;
>>>>>>>>> +  }
>>>>>>>>> +
>>>>>>>>> +  // OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables
>>>>>>>>> Referenced
>>>>>>>>> +  // in a Construct, C/C++, implicitly determined, p.1]
>>>>>>>>> +  //  In a parallel or task construct, the data-sharing
>>>>>>>>> attributes of these
>>>>>>>>> +  //  variables are determined by the default clause, if present.
>>>>>>>>> +  switch (Iter->DefaultAttr) {
>>>>>>>>> +  case DSA_shared:
>>>>>>>>> +    DVar.CKind = OMPC_shared;
>>>>>>>>> +    return DVar;
>>>>>>>>> +  case DSA_none:
>>>>>>>>> +    return DVar;
>>>>>>>>> +  case DSA_unspecified:
>>>>>>>>> +    // OpenMP [2.9.1.1, Data-sharing Attribute Rules for
>>>>>>>>> Variables Referenced
>>>>>>>>> +    // in a Construct, implicitly determined, p.2]
>>>>>>>>> +    //  In a parallel construct, if no default clause is present,
>>>>>>>>> these
>>>>>>>>> +    //  variables are shared.
>>>>>>>>> +    if (DVar.DKind == OMPD_parallel) {
>>>>>>>>> +      DVar.CKind = OMPC_shared;
>>>>>>>>> +      return DVar;
>>>>>>>>> +    }
>>>>>>>>> +
>>>>>>>>> +    // OpenMP [2.9.1.1, Data-sharing Attribute Rules for
>>>>>>>>> Variables Referenced
>>>>>>>>> +    // in a Construct, implicitly determined, p.4]
>>>>>>>>> +    //  In a task construct, if no default clause is present, a
>>>>>>>>> variable that in
>>>>>>>>> +    //  the enclosing context is determined to be shared by all
>>>>>>>>> implicit tasks
>>>>>>>>> +    //  bound to the current team is shared.
>>>>>>>>> +    // TODO
>>>>>>>>> +    if (DVar.DKind == OMPD_task) {
>>>>>>>>> +      DSAVarData DVarTemp;
>>>>>>>>> +      for (StackTy::reverse_iterator I = Iter + 1,
>>>>>>>>> +                                     EE = Stack.rend() - 1;
>>>>>>>>> +           I != EE; ++I) {
>>>>>>>>> +        // OpenMP [2.9.1.1, Data-sharing Attribute Rules for
>>>>>>>>> Variables Referenced
>>>>>>>>> +        // in a Construct, implicitly determined, p.6]
>>>>>>>>> +        //  In a task construct, if no default clause is present,
>>>>>>>>> a variable
>>>>>>>>> +        //  whose data-sharing attribute is not determined by the
>>>>>>>>> rules above is
>>>>>>>>> +        //  firstprivate.
>>>>>>>>> +        DVarTemp = getDSA(I, D);
>>>>>>>>> +        if (DVarTemp.CKind != OMPC_shared) {
>>>>>>>>> +          DVar.RefExpr = 0;
>>>>>>>>> +          DVar.DKind = OMPD_task;
>>>>>>>>> +          DVar.CKind = OMPC_unknown;
>>>>>>>>> +          // TODO: should return OMPC_firstprivate
>>>>>>>>> +          return DVar;
>>>>>>>>> +        }
>>>>>>>>> +        if (I->Directive == OMPD_parallel) break;
>>>>>>>>> +      }
>>>>>>>>> +      DVar.DKind = OMPD_task;
>>>>>>>>> +      // TODO: Should return OMPC_firstprivate instead of
>>>>>>>>> OMPC_unknown.
>>>>>>>>> +      DVar.CKind =
>>>>>>>>> +        (DVarTemp.CKind == OMPC_unknown) ? OMPC_unknown :
>>>>>>>>> OMPC_shared;
>>>>>>>>> +      return DVar;
>>>>>>>>> +    }
>>>>>>>>> +  }
>>>>>>>>> +  // OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables
>>>>>>>>> Referenced
>>>>>>>>> +  // in a Construct, implicitly determined, p.3]
>>>>>>>>> +  //  For constructs other than task, if no default clause is
>>>>>>>>> present, these
>>>>>>>>> +  //  variables inherit their data-sharing attributes from the
>>>>>>>>> enclosing
>>>>>>>>> +  //  context.
>>>>>>>>> +  return getDSA(Iter + 1, D);
>>>>>>>>> +}
>>>>>>>>> +
>>>>>>>>> +void DSAStackTy::addDSA(VarDecl *D, DeclRefExpr *E,
>>>>>>>>> OpenMPClauseKind A) {
>>>>>>>>> +  if (A == OMPC_threadprivate) {
>>>>>>>>> +    Stack[0].SharingMap[D].Attributes = A;
>>>>>>>>> +    Stack[0].SharingMap[D].RefExpr = E;
>>>>>>>>> +  } else {
>>>>>>>>> +    assert(Stack.size() > 1 && "Data-sharing attributes stack is
>>>>>>>>> empty");
>>>>>>>>> +    Stack.back().SharingMap[D].Attributes = A;
>>>>>>>>> +    Stack.back().SharingMap[D].RefExpr = E;
>>>>>>>>> +  }
>>>>>>>>> +}
>>>>>>>>> +
>>>>>>>>> +bool DSAStackTy::isOpenMPLocal(VarDecl *D) {
>>>>>>>>> +  Scope *CurScope = getCurScope();
>>>>>>>>> +  while (CurScope && !CurScope->isDeclScope(D))
>>>>>>>>> +    CurScope = CurScope->getParent();
>>>>>>>>> +  while (CurScope && !CurScope->isOpenMPDirectiveScope())
>>>>>>>>> +    CurScope = CurScope->getParent();
>>>>>>>>> +  bool isOpenMPLocal = !!CurScope;
>>>>>>>>> +  if (!isOpenMPLocal) {
>>>>>>>>> +    CurScope = getCurScope();
>>>>>>>>> +    while (CurScope && !CurScope->isOpenMPDirectiveScope())
>>>>>>>>> +      CurScope = CurScope->getParent();
>>>>>>>>> +    isOpenMPLocal =
>>>>>>>>> +      CurScope &&
>>>>>>>>> +      isa<CapturedDecl>(D->getDeclContext()) &&
>>>>>>>>> +      static_cast<DeclContext *>(
>>>>>>>>> +
>>>>>>>>>  CurScope->getFnParent()->getEntity())->Encloses(D->getDeclContext());
>>>>>>>>> +  }
>>>>>>>>> +  return isOpenMPLocal;
>>>>>>>>> +}
>>>>>>>>> +
>>>>>>>>> +DSAStackTy::DSAVarData DSAStackTy::getTopDSA(VarDecl *D) {
>>>>>>>>> +  DSAVarData DVar;
>>>>>>>>> +
>>>>>>>>> +  // OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables
>>>>>>>>> Referenced
>>>>>>>>> +  // in a Construct, C/C++, predetermined, p.1]
>>>>>>>>> +  //  Variables appearing in threadprivate directives are
>>>>>>>>> threadprivate.
>>>>>>>>> +  if (D->getTLSKind() != VarDecl::TLS_None) {
>>>>>>>>> +    DVar.CKind = OMPC_threadprivate;
>>>>>>>>> +    return DVar;
>>>>>>>>> +  }
>>>>>>>>> +  if (Stack[0].SharingMap.count(D)) {
>>>>>>>>> +    DVar.RefExpr = Stack[0].SharingMap[D].RefExpr;
>>>>>>>>> +    DVar.CKind = OMPC_threadprivate;
>>>>>>>>> +    return DVar;
>>>>>>>>> +  }
>>>>>>>>> +
>>>>>>>>> +  // OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables
>>>>>>>>> Referenced
>>>>>>>>> +  // in a Construct, C/C++, predetermined, p.1]
>>>>>>>>> +  // Variables with automatic storage duration that are declared
>>>>>>>>> in a scope
>>>>>>>>> +  // inside the construct are private.
>>>>>>>>> +  if (isOpenMPLocal(D) && D->isLocalVarDecl() &&
>>>>>>>>> +      (D->getStorageClass() == SC_Auto ||
>>>>>>>>> +       D->getStorageClass() == SC_None)) {
>>>>>>>>> +    DVar.CKind = OMPC_private;
>>>>>>>>> +    return DVar;
>>>>>>>>> +  }
>>>>>>>>> +
>>>>>>>>> +  // OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables
>>>>>>>>> Referenced
>>>>>>>>> +  // in a Construct, C/C++, predetermined, p.4]
>>>>>>>>> +  //  Static data memebers are shared.
>>>>>>>>> +  if (D->isStaticDataMember()) {
>>>>>>>>> +    // Variables with const-qualified type having no mutable
>>>>>>>>> member may be
>>>>>>>>> +    // listed in a firstprivate clause, even if they are static
>>>>>>>>> data members.
>>>>>>>>> +    // TODO:
>>>>>>>>> +    DVar.CKind = OMPC_shared;
>>>>>>>>> +    return DVar;
>>>>>>>>> +  }
>>>>>>>>> +
>>>>>>>>> +  QualType Type =
>>>>>>>>> D->getType().getNonReferenceType().getCanonicalType();
>>>>>>>>> +  bool IsConstant = Type.isConstant(Actions.getASTContext());
>>>>>>>>> +  while (Type->isArrayType()) {
>>>>>>>>> +    QualType ElemType =
>>>>>>>>> cast<ArrayType>(Type.getTypePtr())->getElementType();
>>>>>>>>> +    Type = ElemType.getNonReferenceType().getCanonicalType();
>>>>>>>>> +  }
>>>>>>>>> +  // OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables
>>>>>>>>> Referenced
>>>>>>>>> +  // in a Construct, C/C++, predetermined, p.6]
>>>>>>>>> +  //  Variables with const qualified type having no mutable
>>>>>>>>> member are
>>>>>>>>> +  //  shared.
>>>>>>>>> +  CXXRecordDecl *RD = Actions.getLangOpts().CPlusPlus ?
>>>>>>>>> +                                Type->getAsCXXRecordDecl() : 0;
>>>>>>>>> +  if (IsConstant &&
>>>>>>>>> +      !(Actions.getLangOpts().CPlusPlus && RD &&
>>>>>>>>> RD->hasMutableFields())) {
>>>>>>>>> +    // Variables with const-qualified type having no mutable
>>>>>>>>> member may be
>>>>>>>>> +    // listed in a firstprivate clause, even if they are static
>>>>>>>>> data members.
>>>>>>>>> +    // TODO
>>>>>>>>> +    DVar.CKind = OMPC_shared;
>>>>>>>>> +    return DVar;
>>>>>>>>> +  }
>>>>>>>>> +
>>>>>>>>> +  // OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables
>>>>>>>>> Referenced
>>>>>>>>> +  // in a Construct, C/C++, predetermined, p.7]
>>>>>>>>> +  //  Variables with static storage duration that are declared in
>>>>>>>>> a scope
>>>>>>>>> +  //  inside the construct are shared.
>>>>>>>>> +  if (isOpenMPLocal(D) && D->isStaticLocal()) {
>>>>>>>>> +    DVar.CKind = OMPC_shared;
>>>>>>>>> +    return DVar;
>>>>>>>>> +  }
>>>>>>>>> +
>>>>>>>>> +  // Explicitly specified attributes and local variables with
>>>>>>>>> predetermined
>>>>>>>>> +  // attributes.
>>>>>>>>> +  if (Stack.back().SharingMap.count(D)) {
>>>>>>>>> +    DVar.RefExpr = Stack.back().SharingMap[D].RefExpr;
>>>>>>>>> +    DVar.CKind = Stack.back().SharingMap[D].Attributes;
>>>>>>>>> +  }
>>>>>>>>> +
>>>>>>>>> +  return DVar;
>>>>>>>>> +}
>>>>>>>>> +
>>>>>>>>> +DSAStackTy::DSAVarData DSAStackTy::getImplicitDSA(VarDecl *D) {
>>>>>>>>> +  return getDSA(Stack.rbegin() + 1, D);
>>>>>>>>> +}
>>>>>>>>> +
>>>>>>>>> +void Sema::InitDataSharingAttributesStack() {
>>>>>>>>> +  VarDataSharingAttributesStack = new DSAStackTy(*this);
>>>>>>>>>
>>>>>>>>
>>>>>>>> This is leaked, is that intentional?
>>>>>>>>
>>>>>>>
>>>>>>> It's not leaked. The LSan failure that my magic 8-ball says you're
>>>>>>> looking at stems from not deleting Sema.
>>>>>>>
>>>>>>
>>>>>> Oh, you're right! The "define DSAStack" below confused my grepping.
>>>>>>
>>>>>> I think what's happening then is that the Sema object isn't Bury()d
>>>>>> in the isCurrentFileAST() case. The attached patch fixes this. Does that
>>>>>> look ok?
>>>>>>
>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>>  +}
>>>>>>>>> +
>>>>>>>>> +#define DSAStack static_cast<DSAStackTy
>>>>>>>>> *>(VarDataSharingAttributesStack)
>>>>>>>>> +
>>>>>>>>> +void Sema::DestroyDataSharingAttributesStack() {
>>>>>>>>> +  delete DSAStack;
>>>>>>>>> +}
>>>>>>>>> +
>>>>>>>>> +void Sema::StartOpenMPDSABlock(OpenMPDirectiveKind DKind,
>>>>>>>>> +                               const DeclarationNameInfo &DirName,
>>>>>>>>> +                               Scope *CurScope) {
>>>>>>>>> +  DSAStack->push(DKind, DirName, CurScope);
>>>>>>>>> +  PushExpressionEvaluationContext(PotentiallyEvaluated);
>>>>>>>>> +}
>>>>>>>>> +
>>>>>>>>> +void Sema::EndOpenMPDSABlock(Stmt *CurDirective) {
>>>>>>>>> +  DSAStack->pop();
>>>>>>>>> +  DiscardCleanupsInEvaluationContext();
>>>>>>>>> +  PopExpressionEvaluationContext();
>>>>>>>>> +}
>>>>>>>>> +
>>>>>>>>>  namespace {
>>>>>>>>>
>>>>>>>>>  class VarDeclFilterCCC : public CorrectionCandidateCallback {
>>>>>>>>> @@ -130,6 +449,7 @@ ExprResult Sema::ActOnOpenMPIdExpression
>>>>>>>>>
>>>>>>>>>    QualType ExprType = VD->getType().getNonReferenceType();
>>>>>>>>>    ExprResult DE = BuildDeclRefExpr(VD, ExprType, VK_RValue,
>>>>>>>>> Id.getLoc());
>>>>>>>>> +  DSAStack->addDSA(VD, cast<DeclRefExpr>(DE.get()),
>>>>>>>>> OMPC_threadprivate);
>>>>>>>>>    return DE;
>>>>>>>>>  }
>>>>>>>>>
>>>>>>>>> @@ -192,12 +512,93 @@ OMPThreadPrivateDecl *Sema::CheckOMPThre
>>>>>>>>>                                                 Loc, Vars);
>>>>>>>>>  }
>>>>>>>>>
>>>>>>>>> +namespace {
>>>>>>>>> +class DSAAttrChecker : public StmtVisitor<DSAAttrChecker, void> {
>>>>>>>>> +  DSAStackTy *Stack;
>>>>>>>>> +  Sema &Actions;
>>>>>>>>> +  bool ErrorFound;
>>>>>>>>> +  CapturedStmt *CS;
>>>>>>>>> +public:
>>>>>>>>> +  void VisitDeclRefExpr(DeclRefExpr *E) {
>>>>>>>>> +    if(VarDecl *VD = dyn_cast<VarDecl>(E->getDecl())) {
>>>>>>>>> +      if (VD->isImplicit() && VD->hasAttr<UnusedAttr>()) return;
>>>>>>>>> +      // Skip internally declared variables.
>>>>>>>>> +      if (VD->isLocalVarDecl() && !CS->capturesVariable(VD))
>>>>>>>>> return;
>>>>>>>>> +
>>>>>>>>> +      SourceLocation ELoc = E->getExprLoc();
>>>>>>>>> +
>>>>>>>>> +      OpenMPDirectiveKind DKind = Stack->getCurrentDirective();
>>>>>>>>> +      DSAStackTy::DSAVarData DVar = Stack->getTopDSA(VD);
>>>>>>>>> +      if (DVar.CKind != OMPC_unknown) {
>>>>>>>>> +        if (DKind == OMPD_task && DVar.CKind != OMPC_shared &&
>>>>>>>>> +            DVar.CKind != OMPC_threadprivate && !DVar.RefExpr)
>>>>>>>>> +          // TODO: should be marked as firstprivate.
>>>>>>>>> +          ;
>>>>>>>>> +        return;
>>>>>>>>> +      }
>>>>>>>>> +      // The default(none) clause requires that each variable
>>>>>>>>> that is referenced
>>>>>>>>> +      // in the construct, and does not have a predetermined
>>>>>>>>> data-sharing
>>>>>>>>> +      // attribute, must have its data-sharing attribute
>>>>>>>>> explicitly determined
>>>>>>>>> +      // by being listed in a data-sharing attribute clause.
>>>>>>>>> +      if (DVar.CKind == OMPC_unknown && Stack->getDefaultDSA() ==
>>>>>>>>> DSA_none &&
>>>>>>>>> +          (DKind == OMPD_parallel || DKind == OMPD_task)) {
>>>>>>>>> +        ErrorFound = true;
>>>>>>>>> +        Actions.Diag(ELoc, diag::err_omp_no_dsa_for_variable) <<
>>>>>>>>> VD;
>>>>>>>>> +        return;
>>>>>>>>> +      }
>>>>>>>>> +
>>>>>>>>> +      // OpenMP [2.9.3.6, Restrictions, p.2]
>>>>>>>>> +      //  A list item that appears in a reduction clause of the
>>>>>>>>> innermost
>>>>>>>>> +      //  enclosing worksharing or parallel construct may not be
>>>>>>>>> accessed in an
>>>>>>>>> +      //  explicit task.
>>>>>>>>> +      // TODO:
>>>>>>>>> +
>>>>>>>>> +      // Define implicit data-sharing attributes for task.
>>>>>>>>> +      DVar = Stack->getImplicitDSA(VD);
>>>>>>>>> +      if (DKind == OMPD_task && DVar.CKind != OMPC_shared) {
>>>>>>>>> +        // TODO: should be marked as firstprivate.
>>>>>>>>> +      }
>>>>>>>>> +    }
>>>>>>>>> +  }
>>>>>>>>> +  void VisitOMPExecutableDirective(OMPExecutableDirective *S) {
>>>>>>>>> +    for (ArrayRef<OMPClause *>::iterator I = S->clauses().begin(),
>>>>>>>>> +                                         E = S->clauses().end();
>>>>>>>>> +         I != E; ++I)
>>>>>>>>> +      if (OMPClause *C = *I)
>>>>>>>>> +        for (StmtRange R = C->children(); R; ++R)
>>>>>>>>> +          if (Stmt *Child = *R)
>>>>>>>>> +            Visit(Child);
>>>>>>>>> +  }
>>>>>>>>> +  void VisitStmt(Stmt *S) {
>>>>>>>>> +    for (Stmt::child_iterator I = S->child_begin(), E =
>>>>>>>>> S->child_end();
>>>>>>>>> +         I != E; ++I)
>>>>>>>>> +      if (Stmt *Child = *I)
>>>>>>>>> +        if (!isa<OMPExecutableDirective>(Child))
>>>>>>>>> +          Visit(Child);
>>>>>>>>> +    }
>>>>>>>>> +
>>>>>>>>> +  bool isErrorFound() { return ErrorFound; }
>>>>>>>>> +
>>>>>>>>> +  DSAAttrChecker(DSAStackTy *S, Sema &Actions, CapturedStmt *CS)
>>>>>>>>> +    : Stack(S), Actions(Actions), ErrorFound(false), CS(CS) { }
>>>>>>>>> +};
>>>>>>>>> +}
>>>>>>>>> +
>>>>>>>>>  StmtResult
>>>>>>>>> Sema::ActOnOpenMPExecutableDirective(OpenMPDirectiveKind Kind,
>>>>>>>>>
>>>>>>>>>  ArrayRef<OMPClause *> Clauses,
>>>>>>>>>                                                  Stmt *AStmt,
>>>>>>>>>                                                  SourceLocation
>>>>>>>>> StartLoc,
>>>>>>>>>                                                  SourceLocation
>>>>>>>>> EndLoc) {
>>>>>>>>> +  assert(AStmt && isa<CapturedStmt>(AStmt) && "Captured statement
>>>>>>>>> expected");
>>>>>>>>> +
>>>>>>>>>    StmtResult Res = StmtError();
>>>>>>>>> +
>>>>>>>>> +  // Check default data sharing attributes for referenced
>>>>>>>>> variables.
>>>>>>>>> +  DSAAttrChecker DSAChecker(DSAStack, *this,
>>>>>>>>> cast<CapturedStmt>(AStmt));
>>>>>>>>> +  DSAChecker.Visit(cast<CapturedStmt>(AStmt)->getCapturedStmt());
>>>>>>>>> +  if (DSAChecker.isErrorFound())
>>>>>>>>> +    return StmtError();
>>>>>>>>> +
>>>>>>>>>    switch (Kind) {
>>>>>>>>>    case OMPD_parallel:
>>>>>>>>>      Res = ActOnOpenMPParallelDirective(Clauses, AStmt, StartLoc,
>>>>>>>>> EndLoc);
>>>>>>>>> @@ -231,11 +632,12 @@ OMPClause *Sema::ActOnOpenMPSimpleClause
>>>>>>>>>    OMPClause *Res = 0;
>>>>>>>>>    switch (Kind) {
>>>>>>>>>    case OMPC_default:
>>>>>>>>> -    Res = ActOnOpenMPDefaultClause(
>>>>>>>>> -
>>>>>>>>> static_cast<OpenMPDefaultClauseKind>(Argument),
>>>>>>>>> -                             ArgumentLoc, StartLoc, LParenLoc,
>>>>>>>>> EndLoc);
>>>>>>>>> +    Res =
>>>>>>>>> +
>>>>>>>>>  ActOnOpenMPDefaultClause(static_cast<OpenMPDefaultClauseKind>(Argument),
>>>>>>>>> +                               ArgumentLoc, StartLoc, LParenLoc,
>>>>>>>>> EndLoc);
>>>>>>>>>      break;
>>>>>>>>>    case OMPC_private:
>>>>>>>>> +  case OMPC_shared:
>>>>>>>>>    case OMPC_threadprivate:
>>>>>>>>>    case OMPC_unknown:
>>>>>>>>>    case NUM_OPENMP_CLAUSES:
>>>>>>>>> @@ -272,6 +674,16 @@ OMPClause *Sema::ActOnOpenMPDefaultClaus
>>>>>>>>>        << Values << getOpenMPClauseName(OMPC_default);
>>>>>>>>>      return 0;
>>>>>>>>>    }
>>>>>>>>> +  switch (Kind) {
>>>>>>>>> +  case OMPC_DEFAULT_none:
>>>>>>>>> +    DSAStack->setDefaultDSANone();
>>>>>>>>> +    break;
>>>>>>>>> +  case OMPC_DEFAULT_shared:
>>>>>>>>> +    DSAStack->setDefaultDSAShared();
>>>>>>>>> +    break;
>>>>>>>>> +  default:
>>>>>>>>> +    break;
>>>>>>>>> +  }
>>>>>>>>>    return new (Context) OMPDefaultClause(Kind, KindKwLoc,
>>>>>>>>> StartLoc, LParenLoc,
>>>>>>>>>                                          EndLoc);
>>>>>>>>>  }
>>>>>>>>> @@ -286,6 +698,9 @@ OMPClause *Sema::ActOnOpenMPVarListClaus
>>>>>>>>>    case OMPC_private:
>>>>>>>>>      Res = ActOnOpenMPPrivateClause(VarList, StartLoc, LParenLoc,
>>>>>>>>> EndLoc);
>>>>>>>>>      break;
>>>>>>>>> +  case OMPC_shared:
>>>>>>>>> +    Res = ActOnOpenMPSharedClause(VarList, StartLoc, LParenLoc,
>>>>>>>>> EndLoc);
>>>>>>>>> +    break;
>>>>>>>>>    case OMPC_default:
>>>>>>>>>    case OMPC_threadprivate:
>>>>>>>>>    case OMPC_unknown:
>>>>>>>>> @@ -396,6 +811,29 @@ OMPClause *Sema::ActOnOpenMPPrivateClaus
>>>>>>>>>        }
>>>>>>>>>      }
>>>>>>>>>
>>>>>>>>> +    // OpenMP [2.9.1.1, Data-sharing Attribute Rules for
>>>>>>>>> Variables Referenced
>>>>>>>>> +    // in a Construct]
>>>>>>>>> +    //  Variables with the predetermined data-sharing attributes
>>>>>>>>> may not be
>>>>>>>>> +    //  listed in data-sharing attributes clauses, except for the
>>>>>>>>> cases
>>>>>>>>> +    //  listed below. For these exceptions only, listing a
>>>>>>>>> predetermined
>>>>>>>>> +    //  variable in a data-sharing attribute clause is allowed
>>>>>>>>> and overrides
>>>>>>>>> +    //  the variable's predetermined data-sharing attributes.
>>>>>>>>> +    DSAStackTy::DSAVarData DVar = DSAStack->getTopDSA(VD);
>>>>>>>>> +    if (DVar.CKind != OMPC_unknown && DVar.CKind != OMPC_private)
>>>>>>>>> {
>>>>>>>>> +      Diag(ELoc, diag::err_omp_wrong_dsa)
>>>>>>>>> +         << getOpenMPClauseName(DVar.CKind)
>>>>>>>>> +         << getOpenMPClauseName(OMPC_private);
>>>>>>>>> +      if (DVar.RefExpr) {
>>>>>>>>> +        Diag(DVar.RefExpr->getExprLoc(),
>>>>>>>>> diag::note_omp_explicit_dsa)
>>>>>>>>> +             << getOpenMPClauseName(DVar.CKind);
>>>>>>>>> +      } else {
>>>>>>>>> +        Diag(VD->getLocation(), diag::note_omp_predetermined_dsa)
>>>>>>>>> +             << getOpenMPClauseName(DVar.CKind);
>>>>>>>>> +      }
>>>>>>>>> +      continue;
>>>>>>>>> +    }
>>>>>>>>> +
>>>>>>>>> +    DSAStack->addDSA(VD, DE, OMPC_private);
>>>>>>>>>      Vars.push_back(DE);
>>>>>>>>>    }
>>>>>>>>>
>>>>>>>>> @@ -404,3 +842,65 @@ OMPClause *Sema::ActOnOpenMPPrivateClaus
>>>>>>>>>    return OMPPrivateClause::Create(Context, StartLoc, LParenLoc,
>>>>>>>>> EndLoc, Vars);
>>>>>>>>>  }
>>>>>>>>>
>>>>>>>>> +OMPClause *Sema::ActOnOpenMPSharedClause(ArrayRef<Expr *> VarList,
>>>>>>>>> +                                         SourceLocation StartLoc,
>>>>>>>>> +                                         SourceLocation LParenLoc,
>>>>>>>>> +                                         SourceLocation EndLoc) {
>>>>>>>>> +  SmallVector<Expr *, 8> Vars;
>>>>>>>>> +  for (ArrayRef<Expr *>::iterator I = VarList.begin(), E =
>>>>>>>>> VarList.end();
>>>>>>>>> +       I != E; ++I) {
>>>>>>>>> +    if (*I && isa<DependentScopeDeclRefExpr>(*I)) {
>>>>>>>>> +      // It will be analyzed later.
>>>>>>>>> +      Vars.push_back(*I);
>>>>>>>>> +      continue;
>>>>>>>>> +    }
>>>>>>>>> +
>>>>>>>>> +    SourceLocation ELoc = (*I)->getExprLoc();
>>>>>>>>> +    // OpenMP [2.1, C/C++]
>>>>>>>>> +    //  A list item is a variable name.
>>>>>>>>> +    // OpenMP  [2.9.3.4, Restrictions, p.1]
>>>>>>>>> +    //  A variable that is part of another variable (as an array
>>>>>>>>> or
>>>>>>>>> +    //  structure element) cannot appear in a private clause.
>>>>>>>>> +    DeclRefExpr *DE = dyn_cast<DeclRefExpr>(*I);
>>>>>>>>> +    if (!DE || !isa<VarDecl>(DE->getDecl())) {
>>>>>>>>> +      Diag(ELoc, diag::err_omp_expected_var_name)
>>>>>>>>> +        << (*I)->getSourceRange();
>>>>>>>>> +      continue;
>>>>>>>>> +    }
>>>>>>>>> +    Decl *D = DE->getDecl();
>>>>>>>>> +    VarDecl *VD = cast<VarDecl>(D);
>>>>>>>>> +
>>>>>>>>> +    QualType Type = VD->getType();
>>>>>>>>> +    if (Type->isDependentType() ||
>>>>>>>>> Type->isInstantiationDependentType()) {
>>>>>>>>> +      // It will be analyzed later.
>>>>>>>>> +      Vars.push_back(DE);
>>>>>>>>> +      continue;
>>>>>>>>> +    }
>>>>>>>>> +
>>>>>>>>> +    // OpenMP [2.9.1.1, Data-sharing Attribute Rules for
>>>>>>>>> Variables Referenced
>>>>>>>>> +    // in a Construct]
>>>>>>>>> +    //  Variables with the predetermined data-sharing attributes
>>>>>>>>> may not be
>>>>>>>>> +    //  listed in data-sharing attributes clauses, except for the
>>>>>>>>> cases
>>>>>>>>> +    //  listed below. For these exceptions only, listing a
>>>>>>>>> predetermined
>>>>>>>>> +    //  variable in a data-sharing attribute clause is allowed
>>>>>>>>> and overrides
>>>>>>>>> +    //  the variable's predetermined data-sharing attributes.
>>>>>>>>> +    DSAStackTy::DSAVarData DVar = DSAStack->getTopDSA(VD);
>>>>>>>>> +    if (DVar.CKind != OMPC_unknown && DVar.CKind != OMPC_shared
>>>>>>>>> && DVar.RefExpr) {
>>>>>>>>> +      Diag(ELoc, diag::err_omp_wrong_dsa)
>>>>>>>>> +         << getOpenMPClauseName(DVar.CKind)
>>>>>>>>> +         << getOpenMPClauseName(OMPC_shared);
>>>>>>>>> +      Diag(DVar.RefExpr->getExprLoc(),
>>>>>>>>> diag::note_omp_explicit_dsa)
>>>>>>>>> +           << getOpenMPClauseName(DVar.CKind);
>>>>>>>>> +      continue;
>>>>>>>>> +    }
>>>>>>>>> +
>>>>>>>>> +    DSAStack->addDSA(VD, DE, OMPC_shared);
>>>>>>>>> +    Vars.push_back(DE);
>>>>>>>>> +  }
>>>>>>>>> +
>>>>>>>>> +  if (Vars.empty()) return 0;
>>>>>>>>> +
>>>>>>>>> +  return OMPSharedClause::Create(Context, StartLoc, LParenLoc,
>>>>>>>>> EndLoc, Vars);
>>>>>>>>> +}
>>>>>>>>> +
>>>>>>>>> +#undef DSAStack
>>>>>>>>>
>>>>>>>>> Modified: cfe/trunk/lib/Sema/TreeTransform.h
>>>>>>>>> URL:
>>>>>>>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Sema/TreeTransform.h?rev=190183&r1=190182&r2=190183&view=diff
>>>>>>>>>
>>>>>>>>> ==============================================================================
>>>>>>>>> --- cfe/trunk/lib/Sema/TreeTransform.h (original)
>>>>>>>>> +++ cfe/trunk/lib/Sema/TreeTransform.h Fri Sep  6 13:03:48 2013
>>>>>>>>> @@ -1312,6 +1312,14 @@ public:
>>>>>>>>>                                                EndLoc);
>>>>>>>>>    }
>>>>>>>>>
>>>>>>>>> +  OMPClause *RebuildOMPSharedClause(ArrayRef<Expr *> VarList,
>>>>>>>>> +                                    SourceLocation StartLoc,
>>>>>>>>> +                                    SourceLocation LParenLoc,
>>>>>>>>> +                                    SourceLocation EndLoc) {
>>>>>>>>> +    return getSema().ActOnOpenMPSharedClause(VarList, StartLoc,
>>>>>>>>> LParenLoc,
>>>>>>>>> +                                             EndLoc);
>>>>>>>>> +  }
>>>>>>>>> +
>>>>>>>>>    /// \brief Rebuild the operand to an Objective-C \@synchronized
>>>>>>>>> statement.
>>>>>>>>>    ///
>>>>>>>>>    /// By default, performs semantic analysis to build the new
>>>>>>>>> statement.
>>>>>>>>> @@ -6254,33 +6262,44 @@ TreeTransform<Derived>::TransformSEHHand
>>>>>>>>>  template<typename Derived>
>>>>>>>>>  StmtResult
>>>>>>>>>  TreeTransform<Derived>::TransformOMPParallelDirective(OMPParallelDirective
>>>>>>>>> *D) {
>>>>>>>>> +  DeclarationNameInfo DirName;
>>>>>>>>> +  getSema().StartOpenMPDSABlock(OMPD_parallel, DirName, 0);
>>>>>>>>> +
>>>>>>>>>    // Transform the clauses
>>>>>>>>> -  SmallVector<OMPClause *, 5> TClauses;
>>>>>>>>> +  llvm::SmallVector<OMPClause *, 16> TClauses;
>>>>>>>>>    ArrayRef<OMPClause *> Clauses = D->clauses();
>>>>>>>>>    TClauses.reserve(Clauses.size());
>>>>>>>>>    for (ArrayRef<OMPClause *>::iterator I = Clauses.begin(), E =
>>>>>>>>> Clauses.end();
>>>>>>>>>         I != E; ++I) {
>>>>>>>>>      if (*I) {
>>>>>>>>>        OMPClause *Clause = getDerived().TransformOMPClause(*I);
>>>>>>>>> -      if (!Clause)
>>>>>>>>> +      if (!Clause) {
>>>>>>>>> +        getSema().EndOpenMPDSABlock(0);
>>>>>>>>>          return StmtError();
>>>>>>>>> +      }
>>>>>>>>>        TClauses.push_back(Clause);
>>>>>>>>>      }
>>>>>>>>>      else {
>>>>>>>>>        TClauses.push_back(0);
>>>>>>>>>      }
>>>>>>>>>    }
>>>>>>>>> -  if (!D->getAssociatedStmt())
>>>>>>>>> +  if (!D->getAssociatedStmt()) {
>>>>>>>>> +    getSema().EndOpenMPDSABlock(0);
>>>>>>>>>      return StmtError();
>>>>>>>>> +  }
>>>>>>>>>    StmtResult AssociatedStmt =
>>>>>>>>>      getDerived().TransformStmt(D->getAssociatedStmt());
>>>>>>>>> -  if (AssociatedStmt.isInvalid())
>>>>>>>>> +  if (AssociatedStmt.isInvalid()) {
>>>>>>>>> +    getSema().EndOpenMPDSABlock(0);
>>>>>>>>>      return StmtError();
>>>>>>>>> +  }
>>>>>>>>>
>>>>>>>>> -  return getDerived().RebuildOMPParallelDirective(TClauses,
>>>>>>>>> -
>>>>>>>>>  AssociatedStmt.take(),
>>>>>>>>> -
>>>>>>>>>  D->getLocStart(),
>>>>>>>>> -                                                  D->getLocEnd());
>>>>>>>>> +  StmtResult Res =
>>>>>>>>> getDerived().RebuildOMPParallelDirective(TClauses,
>>>>>>>>> +
>>>>>>>>>  AssociatedStmt.take(),
>>>>>>>>> +
>>>>>>>>>  D->getLocStart(),
>>>>>>>>> +
>>>>>>>>>  D->getLocEnd());
>>>>>>>>> +  getSema().EndOpenMPDSABlock(Res.get());
>>>>>>>>> +  return Res;
>>>>>>>>>  }
>>>>>>>>>
>>>>>>>>>  template<typename Derived>
>>>>>>>>> @@ -6296,7 +6315,7 @@ TreeTransform<Derived>::TransformOMPDefa
>>>>>>>>>  template<typename Derived>
>>>>>>>>>  OMPClause *
>>>>>>>>>  TreeTransform<Derived>::TransformOMPPrivateClause(OMPPrivateClause
>>>>>>>>> *C) {
>>>>>>>>> -  SmallVector<Expr *, 5> Vars;
>>>>>>>>> +  llvm::SmallVector<Expr *, 16> Vars;
>>>>>>>>>    Vars.reserve(C->varlist_size());
>>>>>>>>>    for (OMPVarList<OMPPrivateClause>::varlist_iterator I =
>>>>>>>>> C->varlist_begin(),
>>>>>>>>>                                                        E =
>>>>>>>>> C->varlist_end();
>>>>>>>>> @@ -6312,6 +6331,25 @@ TreeTransform<Derived>::TransformOMPPriv
>>>>>>>>>                                                C->getLocEnd());
>>>>>>>>>  }
>>>>>>>>>
>>>>>>>>> +template<typename Derived>
>>>>>>>>> +OMPClause *
>>>>>>>>> +TreeTransform<Derived>::TransformOMPSharedClause(OMPSharedClause
>>>>>>>>> *C) {
>>>>>>>>> +  llvm::SmallVector<Expr *, 16> Vars;
>>>>>>>>> +  Vars.reserve(C->varlist_size());
>>>>>>>>> +  for (OMPVarList<OMPSharedClause>::varlist_iterator I =
>>>>>>>>> C->varlist_begin(),
>>>>>>>>> +                                                     E =
>>>>>>>>> C->varlist_end();
>>>>>>>>> +       I != E; ++I) {
>>>>>>>>> +    ExprResult EVar = getDerived().TransformExpr(cast<Expr>(*I));
>>>>>>>>> +    if (EVar.isInvalid())
>>>>>>>>> +      return 0;
>>>>>>>>> +    Vars.push_back(EVar.take());
>>>>>>>>> +  }
>>>>>>>>> +  return getDerived().RebuildOMPSharedClause(Vars,
>>>>>>>>> +                                             C->getLocStart(),
>>>>>>>>> +                                             C->getLParenLoc(),
>>>>>>>>> +                                             C->getLocEnd());
>>>>>>>>> +}
>>>>>>>>> +
>>>>>>>>>
>>>>>>>>>  //===----------------------------------------------------------------------===//
>>>>>>>>>  // Expression transformation
>>>>>>>>>
>>>>>>>>>  //===----------------------------------------------------------------------===//
>>>>>>>>>
>>>>>>>>> Modified: cfe/trunk/lib/Serialization/ASTReaderStmt.cpp
>>>>>>>>> URL:
>>>>>>>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Serialization/ASTReaderStmt.cpp?rev=190183&r1=190182&r2=190183&view=diff
>>>>>>>>>
>>>>>>>>> ==============================================================================
>>>>>>>>> --- cfe/trunk/lib/Serialization/ASTReaderStmt.cpp (original)
>>>>>>>>> +++ cfe/trunk/lib/Serialization/ASTReaderStmt.cpp Fri Sep  6
>>>>>>>>> 13:03:48 2013
>>>>>>>>> @@ -1689,6 +1689,9 @@ OMPClause *OMPClauseReader::readClause()
>>>>>>>>>    case OMPC_private:
>>>>>>>>>      C = OMPPrivateClause::CreateEmpty(Context, Record[Idx++]);
>>>>>>>>>      break;
>>>>>>>>> +  case OMPC_shared:
>>>>>>>>> +    C = OMPSharedClause::CreateEmpty(Context, Record[Idx++]);
>>>>>>>>> +    break;
>>>>>>>>>    }
>>>>>>>>>    Visit(C);
>>>>>>>>>    C->setLocStart(Reader->ReadSourceLocation(Record, Idx));
>>>>>>>>> @@ -1708,6 +1711,16 @@ void OMPClauseReader::VisitOMPPrivateCla
>>>>>>>>>    C->setLParenLoc(Reader->ReadSourceLocation(Record, Idx));
>>>>>>>>>    unsigned NumVars = C->varlist_size();
>>>>>>>>>    SmallVector<Expr *, 16> Vars;
>>>>>>>>> +  Vars.reserve(NumVars);
>>>>>>>>> +  for (unsigned i = 0; i != NumVars; ++i)
>>>>>>>>> +    Vars.push_back(Reader->Reader.ReadSubExpr());
>>>>>>>>> +  C->setVarRefs(Vars);
>>>>>>>>> +}
>>>>>>>>> +
>>>>>>>>> +void OMPClauseReader::VisitOMPSharedClause(OMPSharedClause *C) {
>>>>>>>>> +  C->setLParenLoc(Reader->ReadSourceLocation(Record, Idx));
>>>>>>>>> +  unsigned NumVars = C->varlist_size();
>>>>>>>>> +  SmallVector<Expr *, 16> Vars;
>>>>>>>>>    Vars.reserve(NumVars);
>>>>>>>>>    for (unsigned i = 0; i != NumVars; ++i)
>>>>>>>>>      Vars.push_back(Reader->Reader.ReadSubExpr());
>>>>>>>>>
>>>>>>>>> Modified: cfe/trunk/lib/Serialization/ASTWriterStmt.cpp
>>>>>>>>> URL:
>>>>>>>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Serialization/ASTWriterStmt.cpp?rev=190183&r1=190182&r2=190183&view=diff
>>>>>>>>>
>>>>>>>>> ==============================================================================
>>>>>>>>> --- cfe/trunk/lib/Serialization/ASTWriterStmt.cpp (original)
>>>>>>>>> +++ cfe/trunk/lib/Serialization/ASTWriterStmt.cpp Fri Sep  6
>>>>>>>>> 13:03:48 2013
>>>>>>>>> @@ -1703,6 +1703,15 @@ void OMPClauseWriter::VisitOMPPrivateCla
>>>>>>>>>      Writer->Writer.AddStmt(*I);
>>>>>>>>>  }
>>>>>>>>>
>>>>>>>>> +void OMPClauseWriter::VisitOMPSharedClause(OMPSharedClause *C) {
>>>>>>>>> +  Record.push_back(C->varlist_size());
>>>>>>>>> +  Writer->Writer.AddSourceLocation(C->getLParenLoc(), Record);
>>>>>>>>> +  for (OMPVarList<OMPSharedClause>::varlist_iterator I =
>>>>>>>>> C->varlist_begin(),
>>>>>>>>> +                                                     E =
>>>>>>>>> C->varlist_end();
>>>>>>>>> +       I != E; ++I)
>>>>>>>>> +    Writer->Writer.AddStmt(*I);
>>>>>>>>> +}
>>>>>>>>> +
>>>>>>>>>
>>>>>>>>>  //===----------------------------------------------------------------------===//
>>>>>>>>>  // OpenMP Directives.
>>>>>>>>>
>>>>>>>>>  //===----------------------------------------------------------------------===//
>>>>>>>>>
>>>>>>>>> Modified: cfe/trunk/test/OpenMP/openmp_common.c
>>>>>>>>> URL:
>>>>>>>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/test/OpenMP/openmp_common.c?rev=190183&r1=190182&r2=190183&view=diff
>>>>>>>>>
>>>>>>>>> ==============================================================================
>>>>>>>>> --- cfe/trunk/test/OpenMP/openmp_common.c (original)
>>>>>>>>> +++ cfe/trunk/test/OpenMP/openmp_common.c Fri Sep  6 13:03:48 2013
>>>>>>>>> @@ -1,4 +1,4 @@
>>>>>>>>> -// RUN: %clang_cc1 -triple x86_64-apple-macos10.7.0 -verify
>>>>>>>>> -fopenmp -ferror-limit 100 -o - %s
>>>>>>>>> +// RUN: %clang_cc1 -verify -fopenmp -ferror-limit 100 -o - %s
>>>>>>>>>
>>>>>>>>>  #pragma omp // expected-error {{expected an OpenMP directive}}
>>>>>>>>>  #pragma omp unknown_directive // expected-error {{expected an
>>>>>>>>> OpenMP directive}}
>>>>>>>>>
>>>>>>>>> Modified: cfe/trunk/test/OpenMP/parallel_default_messages.cpp
>>>>>>>>> URL:
>>>>>>>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/test/OpenMP/parallel_default_messages.cpp?rev=190183&r1=190182&r2=190183&view=diff
>>>>>>>>>
>>>>>>>>> ==============================================================================
>>>>>>>>> --- cfe/trunk/test/OpenMP/parallel_default_messages.cpp (original)
>>>>>>>>> +++ cfe/trunk/test/OpenMP/parallel_default_messages.cpp Fri Sep  6
>>>>>>>>> 13:03:48 2013
>>>>>>>>> @@ -1,4 +1,4 @@
>>>>>>>>> -// RUN: %clang_cc1 -triple x86_64-apple-macos10.7.0 -verify
>>>>>>>>> -fopenmp -ferror-limit 100 -o - %s
>>>>>>>>> +// RUN: %clang_cc1 -verify -fopenmp -ferror-limit 100 -o - %s
>>>>>>>>>
>>>>>>>>>  void foo();
>>>>>>>>>
>>>>>>>>> @@ -11,5 +11,11 @@ int main(int argc, char **argv) {
>>>>>>>>>    #pragma omp parallel default (x) // expected-error {{expected
>>>>>>>>> 'none' or 'shared' in OpenMP clause 'default'}}
>>>>>>>>>    foo();
>>>>>>>>>
>>>>>>>>> +  #pragma omp parallel default(none)
>>>>>>>>> +  ++argc; // expected-error {{variable 'argc' must have
>>>>>>>>> explicitly specified data sharing attributes}}
>>>>>>>>> +
>>>>>>>>> +  #pragma omp parallel default(none)
>>>>>>>>> +  #pragma omp parallel default(shared)
>>>>>>>>> +  ++argc;
>>>>>>>>>    return 0;
>>>>>>>>>  }
>>>>>>>>>
>>>>>>>>> Added: cfe/trunk/test/OpenMP/parallel_messages.cpp
>>>>>>>>> URL:
>>>>>>>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/test/OpenMP/parallel_messages.cpp?rev=190183&view=auto
>>>>>>>>>
>>>>>>>>> ==============================================================================
>>>>>>>>> --- cfe/trunk/test/OpenMP/parallel_messages.cpp (added)
>>>>>>>>> +++ cfe/trunk/test/OpenMP/parallel_messages.cpp Fri Sep  6
>>>>>>>>> 13:03:48 2013
>>>>>>>>> @@ -0,0 +1,49 @@
>>>>>>>>> +// RUN: %clang_cc1 -verify -fopenmp -ferror-limit 100 -o - %s
>>>>>>>>> +
>>>>>>>>> +void foo() {
>>>>>>>>> +}
>>>>>>>>> +
>>>>>>>>> +#pragma omp parallel // expected-error {{unexpected OpenMP
>>>>>>>>> directive '#pragma omp parallel'}}
>>>>>>>>> +
>>>>>>>>> +int main(int argc, char **argv) {
>>>>>>>>> +  #pragma omp parallel
>>>>>>>>> +  #pragma omp parallel unknown() // expected-warning {{extra
>>>>>>>>> tokens at the end of '#pragma omp parallel' are ignored}}
>>>>>>>>> +  foo();
>>>>>>>>> +  L1:
>>>>>>>>> +    foo();
>>>>>>>>> +  #pragma omp parallel
>>>>>>>>> +  ;
>>>>>>>>> +  #pragma omp parallel
>>>>>>>>> +  {
>>>>>>>>> +    goto L1; // expected-error {{use of undeclared label 'L1'}}
>>>>>>>>> +    argc++;
>>>>>>>>> +  }
>>>>>>>>> +
>>>>>>>>> +  for (int i = 0; i < 10; ++i) {
>>>>>>>>> +    switch(argc) {
>>>>>>>>> +     case (0):
>>>>>>>>> +      #pragma omp parallel
>>>>>>>>> +      {
>>>>>>>>> +        foo();
>>>>>>>>> +        break; // expected-error {{'break' statement not in loop
>>>>>>>>> or switch statement}}
>>>>>>>>> +        continue; // expected-error {{'continue' statement not in
>>>>>>>>> loop statement}}
>>>>>>>>> +      }
>>>>>>>>> +      default:
>>>>>>>>> +       break;
>>>>>>>>> +    }
>>>>>>>>> +  }
>>>>>>>>> +  #pragma omp parallel default(none)
>>>>>>>>> +  ++argc; // expected-error {{variable 'argc' must have
>>>>>>>>> explicitly specified data sharing attributes}}
>>>>>>>>> +
>>>>>>>>> +  goto L2; // expected-error {{use of undeclared label 'L2'}}
>>>>>>>>> +  #pragma omp parallel
>>>>>>>>> +  L2:
>>>>>>>>> +  foo();
>>>>>>>>> +  #pragma omp parallel
>>>>>>>>> +  {
>>>>>>>>> +    return 1; // expected-error {{cannot return from OpenMP
>>>>>>>>> region}}
>>>>>>>>> +  }
>>>>>>>>> +
>>>>>>>>> +  return 0;
>>>>>>>>> +}
>>>>>>>>> +
>>>>>>>>>
>>>>>>>>> Propchange: cfe/trunk/test/OpenMP/parallel_messages.cpp
>>>>>>>>>
>>>>>>>>> ------------------------------------------------------------------------------
>>>>>>>>>     svn:eol-style = native
>>>>>>>>>
>>>>>>>>> Propchange: cfe/trunk/test/OpenMP/parallel_messages.cpp
>>>>>>>>>
>>>>>>>>> ------------------------------------------------------------------------------
>>>>>>>>>     svn:keywords = Author Date Id Rev URL
>>>>>>>>>
>>>>>>>>> Propchange: cfe/trunk/test/OpenMP/parallel_messages.cpp
>>>>>>>>>
>>>>>>>>> ------------------------------------------------------------------------------
>>>>>>>>>     svn:mime-type = text/plain
>>>>>>>>>
>>>>>>>>> Modified: cfe/trunk/test/OpenMP/parallel_private_messages.cpp
>>>>>>>>> URL:
>>>>>>>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/test/OpenMP/parallel_private_messages.cpp?rev=190183&r1=190182&r2=190183&view=diff
>>>>>>>>>
>>>>>>>>> ==============================================================================
>>>>>>>>> --- cfe/trunk/test/OpenMP/parallel_private_messages.cpp (original)
>>>>>>>>> +++ cfe/trunk/test/OpenMP/parallel_private_messages.cpp Fri Sep  6
>>>>>>>>> 13:03:48 2013
>>>>>>>>> @@ -1,4 +1,4 @@
>>>>>>>>> -// RUN: %clang_cc1 -triple x86_64-apple-macos10.7.0 -verify
>>>>>>>>> -fopenmp -ferror-limit 100 %s
>>>>>>>>> +// RUN: %clang_cc1 -verify -fopenmp -ferror-limit 100 %s
>>>>>>>>>
>>>>>>>>>  void foo() {
>>>>>>>>>  }
>>>>>>>>> @@ -13,7 +13,7 @@ class S2 {
>>>>>>>>>    mutable int a;
>>>>>>>>>  public:
>>>>>>>>>    S2():a(0) { }
>>>>>>>>> -  static float S2s;
>>>>>>>>> +  static float S2s; // expected-note {{predetermined as shared}}
>>>>>>>>>  };
>>>>>>>>>  const S2 b;
>>>>>>>>>  const S2 ba[5];
>>>>>>>>> @@ -22,9 +22,9 @@ class S3 {
>>>>>>>>>  public:
>>>>>>>>>    S3():a(0) { }
>>>>>>>>>  };
>>>>>>>>> -const S3 c;
>>>>>>>>> -const S3 ca[5];
>>>>>>>>> -extern const int f;
>>>>>>>>> +const S3 c; // expected-note {{predetermined as shared}}
>>>>>>>>> +const S3 ca[5]; // expected-note {{predetermined as shared}}
>>>>>>>>> +extern const int f; // expected-note {{predetermined as shared}}
>>>>>>>>>  class S4 { // expected-note {{'S4' declared here}}
>>>>>>>>>    int a;
>>>>>>>>>    S4();
>>>>>>>>> @@ -38,9 +38,12 @@ public:
>>>>>>>>>    S5(int v):a(v) { }
>>>>>>>>>  };
>>>>>>>>>
>>>>>>>>> +int threadvar;
>>>>>>>>> +#pragma omp threadprivate(threadvar) // expected-note {{defined
>>>>>>>>> as threadprivate or thread local}}
>>>>>>>>> +
>>>>>>>>>  int main(int argc, char **argv) {
>>>>>>>>> -  const int d = 5;
>>>>>>>>> -  const int da[5] = { 0 };
>>>>>>>>> +  const int d = 5; // expected-note {{predetermined as shared}}
>>>>>>>>> +  const int da[5] = { 0 }; // expected-note {{predetermined as
>>>>>>>>> shared}}
>>>>>>>>>    S4 e(4); // expected-note {{'e' defined here}}
>>>>>>>>>    S5 g(5); // expected-note {{'g' defined here}}
>>>>>>>>>    int i;
>>>>>>>>> @@ -53,13 +56,14 @@ int main(int argc, char **argv) {
>>>>>>>>>    #pragma omp parallel private (argc > 0 ? argv[1] : argv[2]) //
>>>>>>>>> expected-error {{expected variable name}}
>>>>>>>>>    #pragma omp parallel private (argc argv) // expected-error
>>>>>>>>> {{expected ',' or ')' in 'private' clause}}
>>>>>>>>>    #pragma omp parallel private (S1) // expected-error {{'S1' does
>>>>>>>>> not refer to a value}}
>>>>>>>>> -  #pragma omp parallel private (a, b, c, d, f) // expected-error
>>>>>>>>> {{a private variable with incomplete type 'S1'}}
>>>>>>>>> +  #pragma omp parallel private (a, b, c, d, f) // expected-error
>>>>>>>>> {{a private variable with incomplete type 'S1'}} expected-error 3 {{shared
>>>>>>>>> variable cannot be private}}
>>>>>>>>>    #pragma omp parallel private (argv[1]) // expected-error
>>>>>>>>> {{expected variable name}}
>>>>>>>>>    #pragma omp parallel private(ba)
>>>>>>>>> -  #pragma omp parallel private(ca)
>>>>>>>>> -  #pragma omp parallel private(da)
>>>>>>>>> -  #pragma omp parallel private(S2::S2s)
>>>>>>>>> +  #pragma omp parallel private(ca) // expected-error {{shared
>>>>>>>>> variable cannot be private}}
>>>>>>>>> +  #pragma omp parallel private(da) // expected-error {{shared
>>>>>>>>> variable cannot be private}}
>>>>>>>>> +  #pragma omp parallel private(S2::S2s) // expected-error
>>>>>>>>> {{shared variable cannot be private}}
>>>>>>>>>    #pragma omp parallel private(e, g) // expected-error 2
>>>>>>>>> {{private variable must have an accessible, unambiguous default
>>>>>>>>> constructor}}
>>>>>>>>> +  #pragma omp parallel private(threadvar) // expected-error
>>>>>>>>> {{threadprivate or thread local variable cannot be private}}
>>>>>>>>>    foo();
>>>>>>>>>    #pragma omp parallel private(i)
>>>>>>>>>    #pragma omp parallel private(j) // expected-error {{arguments
>>>>>>>>> of OpenMP clause 'private' cannot be of reference type 'int &'}}
>>>>>>>>>
>>>>>>>>> Added: cfe/trunk/test/OpenMP/parallel_shared_messages.cpp
>>>>>>>>> URL:
>>>>>>>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/test/OpenMP/parallel_shared_messages.cpp?rev=190183&view=auto
>>>>>>>>>
>>>>>>>>> ==============================================================================
>>>>>>>>> --- cfe/trunk/test/OpenMP/parallel_shared_messages.cpp (added)
>>>>>>>>> +++ cfe/trunk/test/OpenMP/parallel_shared_messages.cpp Fri Sep  6
>>>>>>>>> 13:03:48 2013
>>>>>>>>> @@ -0,0 +1,77 @@
>>>>>>>>> +// RUN: %clang_cc1 -verify -fopenmp -ferror-limit 100 %s
>>>>>>>>> +
>>>>>>>>> +void foo() {
>>>>>>>>> +}
>>>>>>>>> +
>>>>>>>>> +bool foobool(int argc) {
>>>>>>>>> +  return argc;
>>>>>>>>> +}
>>>>>>>>> +
>>>>>>>>> +struct S1; // expected-note {{declared here}}
>>>>>>>>> +extern S1 a;
>>>>>>>>> +class S2 {
>>>>>>>>> +  mutable int a;
>>>>>>>>> +public:
>>>>>>>>> +  S2():a(0) { }
>>>>>>>>> +  S2(S2 &s2):a(s2.a) { }
>>>>>>>>> +};
>>>>>>>>> +const S2 b;
>>>>>>>>> +const S2 ba[5];
>>>>>>>>> +class S3 {
>>>>>>>>> +  int a;
>>>>>>>>> +public:
>>>>>>>>> +  S3():a(0) { }
>>>>>>>>> +  S3(S3 &s3):a(s3.a) { }
>>>>>>>>> +};
>>>>>>>>> +const S3 c;
>>>>>>>>> +const S3 ca[5];
>>>>>>>>> +extern const int f;
>>>>>>>>> +class S4 {
>>>>>>>>> +  int a;
>>>>>>>>> +  S4();
>>>>>>>>> +  S4(const S4 &s4);
>>>>>>>>> +public:
>>>>>>>>> +  S4(int v):a(v) { }
>>>>>>>>> +};
>>>>>>>>> +class S5 {
>>>>>>>>> +  int a;
>>>>>>>>> +  S5():a(0) {}
>>>>>>>>> +  S5(const S5 &s5):a(s5.a) { }
>>>>>>>>> +public:
>>>>>>>>> +  S5(int v):a(v) { }
>>>>>>>>> +};
>>>>>>>>> +
>>>>>>>>> +S3 h;
>>>>>>>>> +#pragma omp threadprivate(h) // expected-note {{defined as
>>>>>>>>> threadprivate or thread local}}
>>>>>>>>> +
>>>>>>>>> +int main(int argc, char **argv) {
>>>>>>>>> +  const int d = 5;
>>>>>>>>> +  const int da[5] = { 0 };
>>>>>>>>> +  S4 e(4);
>>>>>>>>> +  S5 g(5);
>>>>>>>>> +  int i;
>>>>>>>>> +  int &j = i;
>>>>>>>>> +  #pragma omp parallel shared // expected-error {{expected '('
>>>>>>>>> after 'shared'}}
>>>>>>>>> +  #pragma omp parallel shared ( // expected-error {{expected
>>>>>>>>> expression}} expected-error {{expected ')'}} expected-note {{to match this
>>>>>>>>> '('}}
>>>>>>>>> +  #pragma omp parallel shared () // expected-error {{expected
>>>>>>>>> expression}}
>>>>>>>>> +  #pragma omp parallel shared (argc // expected-error {{expected
>>>>>>>>> ')'}} expected-note {{to match this '('}}
>>>>>>>>> +  #pragma omp parallel shared (argc, // expected-error {{expected
>>>>>>>>> expression}} expected-error {{expected ')'}} expected-note {{to match this
>>>>>>>>> '('}}
>>>>>>>>> +  #pragma omp parallel shared (argc > 0 ? argv[1] : argv[2]) //
>>>>>>>>> expected-error {{expected variable name}}
>>>>>>>>> +  #pragma omp parallel shared (argc)
>>>>>>>>> +  #pragma omp parallel shared (S1) // expected-error {{'S1' does
>>>>>>>>> not refer to a value}}
>>>>>>>>> +  #pragma omp parallel shared (a, b, c, d, f)
>>>>>>>>> +  #pragma omp parallel shared (argv[1]) // expected-error
>>>>>>>>> {{expected variable name}}
>>>>>>>>> +  #pragma omp parallel shared(ba)
>>>>>>>>> +  #pragma omp parallel shared(ca)
>>>>>>>>> +  #pragma omp parallel shared(da)
>>>>>>>>> +  #pragma omp parallel shared(e, g)
>>>>>>>>> +  #pragma omp parallel shared(h) // expected-error
>>>>>>>>> {{threadprivate or thread local variable cannot be shared}}
>>>>>>>>> +  #pragma omp parallel private(i), shared(i) // expected-error
>>>>>>>>> {{private variable cannot be shared}} expected-note {{defined as private}}
>>>>>>>>> +  foo();
>>>>>>>>> +  #pragma omp parallel private(i)
>>>>>>>>> +  #pragma omp parallel shared(i)
>>>>>>>>> +  #pragma omp parallel shared(j)
>>>>>>>>> +  foo();
>>>>>>>>> +
>>>>>>>>> +  return 0;
>>>>>>>>> +}
>>>>>>>>>
>>>>>>>>> Propchange: cfe/trunk/test/OpenMP/parallel_shared_messages.cpp
>>>>>>>>>
>>>>>>>>> ------------------------------------------------------------------------------
>>>>>>>>>     svn:eol-style = native
>>>>>>>>>
>>>>>>>>> Propchange: cfe/trunk/test/OpenMP/parallel_shared_messages.cpp
>>>>>>>>>
>>>>>>>>> ------------------------------------------------------------------------------
>>>>>>>>>     svn:keywords = Author Date Id Rev URL
>>>>>>>>>
>>>>>>>>> Propchange: cfe/trunk/test/OpenMP/parallel_shared_messages.cpp
>>>>>>>>>
>>>>>>>>> ------------------------------------------------------------------------------
>>>>>>>>>     svn:mime-type = text/plain
>>>>>>>>>
>>>>>>>>> Modified: cfe/trunk/tools/libclang/CIndex.cpp
>>>>>>>>> URL:
>>>>>>>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/tools/libclang/CIndex.cpp?rev=190183&r1=190182&r2=190183&view=diff
>>>>>>>>>
>>>>>>>>> ==============================================================================
>>>>>>>>> --- cfe/trunk/tools/libclang/CIndex.cpp (original)
>>>>>>>>> +++ cfe/trunk/tools/libclang/CIndex.cpp Fri Sep  6 13:03:48 2013
>>>>>>>>> @@ -1936,6 +1936,9 @@ void OMPClauseEnqueue::VisitOMPDefaultCl
>>>>>>>>>  void OMPClauseEnqueue::VisitOMPPrivateClause(const
>>>>>>>>> OMPPrivateClause *C) {
>>>>>>>>>    PROCESS_OMP_CLAUSE_LIST(OMPPrivateClause, C)
>>>>>>>>>  }
>>>>>>>>> +void OMPClauseEnqueue::VisitOMPSharedClause(const OMPSharedClause
>>>>>>>>> *C) {
>>>>>>>>> +  PROCESS_OMP_CLAUSE_LIST(OMPSharedClause, C)
>>>>>>>>> +}
>>>>>>>>>  #undef PROCESS_OMP_CLAUSE_LIST
>>>>>>>>>  }
>>>>>>>>>  void EnqueueVisitor::EnqueueChildren(const OMPClause *S) {
>>>>>>>>>
>>>>>>>>> Modified: cfe/trunk/tools/libclang/RecursiveASTVisitor.h
>>>>>>>>> URL:
>>>>>>>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/tools/libclang/RecursiveASTVisitor.h?rev=190183&r1=190182&r2=190183&view=diff
>>>>>>>>>
>>>>>>>>> ==============================================================================
>>>>>>>>> --- cfe/trunk/tools/libclang/RecursiveASTVisitor.h (original)
>>>>>>>>> +++ cfe/trunk/tools/libclang/RecursiveASTVisitor.h Fri Sep  6
>>>>>>>>> 13:03:48 2013
>>>>>>>>> @@ -2337,6 +2337,12 @@ bool RecursiveASTVisitor<Derived>::Visit
>>>>>>>>>    return true;
>>>>>>>>>  }
>>>>>>>>>
>>>>>>>>> +template<typename Derived>
>>>>>>>>> +bool
>>>>>>>>> RecursiveASTVisitor<Derived>::VisitOMPSharedClause(OMPSharedClause *C) {
>>>>>>>>> +  PROCESS_OMP_CLAUSE_LIST(OMPSharedClause, C)
>>>>>>>>> +  return true;
>>>>>>>>> +}
>>>>>>>>> +
>>>>>>>>>  #undef PROCESS_OMP_CLAUSE_LIST
>>>>>>>>>
>>>>>>>>>  // FIXME: look at the following tricky-seeming exprs to see if we
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> _______________________________________________
>>>>>>>>> cfe-commits mailing list
>>>>>>>>> cfe-commits at cs.uiuc.edu
>>>>>>>>> http://lists.cs.uiuc.edu/mailman/listinfo/cfe-commits
>>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> _______________________________________________
>>>>>>>> cfe-commits mailing list
>>>>>>>> cfe-commits at cs.uiuc.edu
>>>>>>>> http://lists.cs.uiuc.edu/mailman/listinfo/cfe-commits
>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>
>>>>>
>>>
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