r213363 - [OPENMP] Initial parsing and sema analysis for 'taskwait' directive.

Alexey Bataev a.bataev at hotmail.com
Fri Jul 18 03:17:15 PDT 2014


Author: abataev
Date: Fri Jul 18 05:17:07 2014
New Revision: 213363

URL: http://llvm.org/viewvc/llvm-project?rev=213363&view=rev
Log:
[OPENMP] Initial parsing and sema analysis for 'taskwait' directive.

Added:
    cfe/trunk/test/OpenMP/taskwait_ast_print.cpp   (with props)
    cfe/trunk/test/OpenMP/taskwait_messages.cpp   (with props)
Modified:
    cfe/trunk/include/clang-c/Index.h
    cfe/trunk/include/clang/AST/DataRecursiveASTVisitor.h
    cfe/trunk/include/clang/AST/RecursiveASTVisitor.h
    cfe/trunk/include/clang/AST/StmtOpenMP.h
    cfe/trunk/include/clang/Basic/OpenMPKinds.def
    cfe/trunk/include/clang/Basic/StmtNodes.td
    cfe/trunk/include/clang/Sema/Sema.h
    cfe/trunk/include/clang/Serialization/ASTBitCodes.h
    cfe/trunk/lib/AST/Stmt.cpp
    cfe/trunk/lib/AST/StmtPrinter.cpp
    cfe/trunk/lib/AST/StmtProfile.cpp
    cfe/trunk/lib/Basic/OpenMPKinds.cpp
    cfe/trunk/lib/CodeGen/CGStmt.cpp
    cfe/trunk/lib/CodeGen/CGStmtOpenMP.cpp
    cfe/trunk/lib/CodeGen/CodeGenFunction.h
    cfe/trunk/lib/Parse/ParseOpenMP.cpp
    cfe/trunk/lib/Parse/ParseStmt.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/lib/StaticAnalyzer/Core/ExprEngine.cpp
    cfe/trunk/test/OpenMP/nesting_of_regions.cpp
    cfe/trunk/tools/libclang/CIndex.cpp
    cfe/trunk/tools/libclang/CXCursor.cpp

Modified: cfe/trunk/include/clang-c/Index.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang-c/Index.h?rev=213363&r1=213362&r2=213363&view=diff
==============================================================================
--- cfe/trunk/include/clang-c/Index.h (original)
+++ cfe/trunk/include/clang-c/Index.h Fri Jul 18 05:17:07 2014
@@ -2179,9 +2179,13 @@ enum CXCursorKind {
    */
   CXCursor_OMPBarrierDirective           = 243,
 
+  /** \brief OpenMP taskwait directive.
+   */
+  CXCursor_OMPTaskwaitDirective          = 244,
+
   /** \brief Windows Structured Exception Handling's leave statement.
    */
-  CXCursor_SEHLeaveStmt                  = 244,
+  CXCursor_SEHLeaveStmt                  = 245,
 
   CXCursor_LastStmt                      = CXCursor_SEHLeaveStmt,
 

Modified: cfe/trunk/include/clang/AST/DataRecursiveASTVisitor.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/AST/DataRecursiveASTVisitor.h?rev=213363&r1=213362&r2=213363&view=diff
==============================================================================
--- cfe/trunk/include/clang/AST/DataRecursiveASTVisitor.h (original)
+++ cfe/trunk/include/clang/AST/DataRecursiveASTVisitor.h Fri Jul 18 05:17:07 2014
@@ -2315,6 +2315,9 @@ DEF_TRAVERSE_STMT(OMPTaskyieldDirective,
 DEF_TRAVERSE_STMT(OMPBarrierDirective,
                   { TRY_TO(TraverseOMPExecutableDirective(S)); })
 
+DEF_TRAVERSE_STMT(OMPTaskwaitDirective,
+                  { TRY_TO(TraverseOMPExecutableDirective(S)); })
+
 // OpenMP clauses.
 template <typename Derived>
 bool RecursiveASTVisitor<Derived>::TraverseOMPClause(OMPClause *C) {

Modified: cfe/trunk/include/clang/AST/RecursiveASTVisitor.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/AST/RecursiveASTVisitor.h?rev=213363&r1=213362&r2=213363&view=diff
==============================================================================
--- cfe/trunk/include/clang/AST/RecursiveASTVisitor.h (original)
+++ cfe/trunk/include/clang/AST/RecursiveASTVisitor.h Fri Jul 18 05:17:07 2014
@@ -2337,6 +2337,9 @@ DEF_TRAVERSE_STMT(OMPTaskyieldDirective,
 DEF_TRAVERSE_STMT(OMPBarrierDirective,
                   { TRY_TO(TraverseOMPExecutableDirective(S)); })
 
+DEF_TRAVERSE_STMT(OMPTaskwaitDirective,
+                  { TRY_TO(TraverseOMPExecutableDirective(S)); })
+
 // OpenMP clauses.
 template <typename Derived>
 bool RecursiveASTVisitor<Derived>::TraverseOMPClause(OMPClause *C) {

Modified: cfe/trunk/include/clang/AST/StmtOpenMP.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/AST/StmtOpenMP.h?rev=213363&r1=213362&r2=213363&view=diff
==============================================================================
--- cfe/trunk/include/clang/AST/StmtOpenMP.h (original)
+++ cfe/trunk/include/clang/AST/StmtOpenMP.h Fri Jul 18 05:17:07 2014
@@ -862,6 +862,50 @@ public:
   }
 };
 
+/// \brief This represents '#pragma omp taskwait' directive.
+///
+/// \code
+/// #pragma omp taskwait
+/// \endcode
+///
+class OMPTaskwaitDirective : public OMPExecutableDirective {
+  friend class ASTStmtReader;
+  /// \brief Build directive with the given start and end location.
+  ///
+  /// \param StartLoc Starting location of the directive kind.
+  /// \param EndLoc Ending location of the directive.
+  ///
+  OMPTaskwaitDirective(SourceLocation StartLoc, SourceLocation EndLoc)
+      : OMPExecutableDirective(this, OMPTaskwaitDirectiveClass, OMPD_taskwait,
+                               StartLoc, EndLoc, 0, 0) {}
+
+  /// \brief Build an empty directive.
+  ///
+  explicit OMPTaskwaitDirective()
+      : OMPExecutableDirective(this, OMPTaskwaitDirectiveClass, OMPD_taskwait,
+                               SourceLocation(), SourceLocation(), 0, 0) {}
+
+public:
+  /// \brief Creates directive.
+  ///
+  /// \param C AST context.
+  /// \param StartLoc Starting location of the directive kind.
+  /// \param EndLoc Ending Location of the directive.
+  ///
+  static OMPTaskwaitDirective *
+  Create(const ASTContext &C, SourceLocation StartLoc, SourceLocation EndLoc);
+
+  /// \brief Creates an empty directive.
+  ///
+  /// \param C AST context.
+  ///
+  static OMPTaskwaitDirective *CreateEmpty(const ASTContext &C, EmptyShell);
+
+  static bool classof(const Stmt *T) {
+    return T->getStmtClass() == OMPTaskwaitDirectiveClass;
+  }
+};
+
 } // end namespace clang
 
 #endif

Modified: cfe/trunk/include/clang/Basic/OpenMPKinds.def
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/OpenMPKinds.def?rev=213363&r1=213362&r2=213363&view=diff
==============================================================================
--- cfe/trunk/include/clang/Basic/OpenMPKinds.def (original)
+++ cfe/trunk/include/clang/Basic/OpenMPKinds.def Fri Jul 18 05:17:07 2014
@@ -67,6 +67,7 @@ OPENMP_DIRECTIVE(single)
 OPENMP_DIRECTIVE(master)
 OPENMP_DIRECTIVE(taskyield)
 OPENMP_DIRECTIVE(barrier)
+OPENMP_DIRECTIVE(taskwait)
 OPENMP_DIRECTIVE_EXT(parallel_for, "parallel for")
 OPENMP_DIRECTIVE_EXT(parallel_sections, "parallel sections")
 

Modified: cfe/trunk/include/clang/Basic/StmtNodes.td
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/StmtNodes.td?rev=213363&r1=213362&r2=213363&view=diff
==============================================================================
--- cfe/trunk/include/clang/Basic/StmtNodes.td (original)
+++ cfe/trunk/include/clang/Basic/StmtNodes.td Fri Jul 18 05:17:07 2014
@@ -190,3 +190,4 @@ def OMPParallelSectionsDirective : DStmt
 def OMPTaskDirective : DStmt<OMPExecutableDirective>;
 def OMPTaskyieldDirective : DStmt<OMPExecutableDirective>;
 def OMPBarrierDirective : DStmt<OMPExecutableDirective>;
+def OMPTaskwaitDirective : DStmt<OMPExecutableDirective>;

Modified: cfe/trunk/include/clang/Sema/Sema.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Sema/Sema.h?rev=213363&r1=213362&r2=213363&view=diff
==============================================================================
--- cfe/trunk/include/clang/Sema/Sema.h (original)
+++ cfe/trunk/include/clang/Sema/Sema.h Fri Jul 18 05:17:07 2014
@@ -7374,6 +7374,9 @@ public:
   /// \brief Called on well-formed '\#pragma omp barrier'.
   StmtResult ActOnOpenMPBarrierDirective(SourceLocation StartLoc,
                                          SourceLocation EndLoc);
+  /// \brief Called on well-formed '\#pragma omp taskwait'.
+  StmtResult ActOnOpenMPTaskwaitDirective(SourceLocation StartLoc,
+                                         SourceLocation EndLoc);
 
   OMPClause *ActOnOpenMPSingleExprClause(OpenMPClauseKind Kind,
                                          Expr *Expr,

Modified: cfe/trunk/include/clang/Serialization/ASTBitCodes.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Serialization/ASTBitCodes.h?rev=213363&r1=213362&r2=213363&view=diff
==============================================================================
--- cfe/trunk/include/clang/Serialization/ASTBitCodes.h (original)
+++ cfe/trunk/include/clang/Serialization/ASTBitCodes.h Fri Jul 18 05:17:07 2014
@@ -1352,6 +1352,7 @@ namespace clang {
       STMT_OMP_TASK_DIRECTIVE,
       STMT_OMP_TASKYIELD_DIRECTIVE,
       STMT_OMP_BARRIER_DIRECTIVE,
+      STMT_OMP_TASKWAIT_DIRECTIVE,
 
       // ARC
       EXPR_OBJC_BRIDGED_CAST,     // ObjCBridgedCastExpr

Modified: cfe/trunk/lib/AST/Stmt.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/AST/Stmt.cpp?rev=213363&r1=213362&r2=213363&view=diff
==============================================================================
--- cfe/trunk/lib/AST/Stmt.cpp (original)
+++ cfe/trunk/lib/AST/Stmt.cpp Fri Jul 18 05:17:07 2014
@@ -1603,3 +1603,17 @@ OMPBarrierDirective *OMPBarrierDirective
   return new (Mem) OMPBarrierDirective();
 }
 
+OMPTaskwaitDirective *OMPTaskwaitDirective::Create(const ASTContext &C,
+                                                   SourceLocation StartLoc,
+                                                   SourceLocation EndLoc) {
+  void *Mem = C.Allocate(sizeof(OMPTaskwaitDirective));
+  OMPTaskwaitDirective *Dir = new (Mem) OMPTaskwaitDirective(StartLoc, EndLoc);
+  return Dir;
+}
+
+OMPTaskwaitDirective *OMPTaskwaitDirective::CreateEmpty(const ASTContext &C,
+                                                        EmptyShell) {
+  void *Mem = C.Allocate(sizeof(OMPTaskwaitDirective));
+  return new (Mem) OMPTaskwaitDirective();
+}
+

Modified: cfe/trunk/lib/AST/StmtPrinter.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/AST/StmtPrinter.cpp?rev=213363&r1=213362&r2=213363&view=diff
==============================================================================
--- cfe/trunk/lib/AST/StmtPrinter.cpp (original)
+++ cfe/trunk/lib/AST/StmtPrinter.cpp Fri Jul 18 05:17:07 2014
@@ -860,6 +860,11 @@ void StmtPrinter::VisitOMPBarrierDirecti
   PrintOMPExecutableDirective(Node);
 }
 
+void StmtPrinter::VisitOMPTaskwaitDirective(OMPTaskwaitDirective *Node) {
+  Indent() << "#pragma omp taskwait";
+  PrintOMPExecutableDirective(Node);
+}
+
 //===----------------------------------------------------------------------===//
 //  Expr printing methods.
 //===----------------------------------------------------------------------===//

Modified: cfe/trunk/lib/AST/StmtProfile.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/AST/StmtProfile.cpp?rev=213363&r1=213362&r2=213363&view=diff
==============================================================================
--- cfe/trunk/lib/AST/StmtProfile.cpp (original)
+++ cfe/trunk/lib/AST/StmtProfile.cpp Fri Jul 18 05:17:07 2014
@@ -415,6 +415,10 @@ void StmtProfiler::VisitOMPBarrierDirect
   VisitOMPExecutableDirective(S);
 }
 
+void StmtProfiler::VisitOMPTaskwaitDirective(const OMPTaskwaitDirective *S) {
+  VisitOMPExecutableDirective(S);
+}
+
 void StmtProfiler::VisitExpr(const Expr *S) {
   VisitStmt(S);
 }

Modified: cfe/trunk/lib/Basic/OpenMPKinds.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Basic/OpenMPKinds.cpp?rev=213363&r1=213362&r2=213363&view=diff
==============================================================================
--- cfe/trunk/lib/Basic/OpenMPKinds.cpp (original)
+++ cfe/trunk/lib/Basic/OpenMPKinds.cpp Fri Jul 18 05:17:07 2014
@@ -259,6 +259,7 @@ bool clang::isAllowedClauseForDirective(
   case OMPD_master:
   case OMPD_taskyield:
   case OMPD_barrier:
+  case OMPD_taskwait:
     break;
   }
   return false;

Modified: cfe/trunk/lib/CodeGen/CGStmt.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGStmt.cpp?rev=213363&r1=213362&r2=213363&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/CGStmt.cpp (original)
+++ cfe/trunk/lib/CodeGen/CGStmt.cpp Fri Jul 18 05:17:07 2014
@@ -212,6 +212,9 @@ void CodeGenFunction::EmitStmt(const Stm
   case Stmt::OMPBarrierDirectiveClass:
     EmitOMPBarrierDirective(cast<OMPBarrierDirective>(*S));
     break;
+  case Stmt::OMPTaskwaitDirectiveClass:
+    EmitOMPTaskwaitDirective(cast<OMPTaskwaitDirective>(*S));
+    break;
   }
 }
 

Modified: cfe/trunk/lib/CodeGen/CGStmtOpenMP.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGStmtOpenMP.cpp?rev=213363&r1=213362&r2=213363&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/CGStmtOpenMP.cpp (original)
+++ cfe/trunk/lib/CodeGen/CGStmtOpenMP.cpp Fri Jul 18 05:17:07 2014
@@ -116,3 +116,7 @@ void CodeGenFunction::EmitOMPBarrierDire
   llvm_unreachable("CodeGen for 'omp barrier' is not supported yet.");
 }
 
+void CodeGenFunction::EmitOMPTaskwaitDirective(const OMPTaskwaitDirective &) {
+  llvm_unreachable("CodeGen for 'omp taskwait' is not supported yet.");
+}
+

Modified: cfe/trunk/lib/CodeGen/CodeGenFunction.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CodeGenFunction.h?rev=213363&r1=213362&r2=213363&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/CodeGenFunction.h (original)
+++ cfe/trunk/lib/CodeGen/CodeGenFunction.h Fri Jul 18 05:17:07 2014
@@ -1933,6 +1933,7 @@ public:
   void EmitOMPTaskDirective(const OMPTaskDirective &S);
   void EmitOMPTaskyieldDirective(const OMPTaskyieldDirective &S);
   void EmitOMPBarrierDirective(const OMPBarrierDirective &S);
+  void EmitOMPTaskwaitDirective(const OMPTaskwaitDirective &S);
 
   //===--------------------------------------------------------------------===//
   //                         LValue Expression Emission

Modified: cfe/trunk/lib/Parse/ParseOpenMP.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Parse/ParseOpenMP.cpp?rev=213363&r1=213362&r2=213363&view=diff
==============================================================================
--- cfe/trunk/lib/Parse/ParseOpenMP.cpp (original)
+++ cfe/trunk/lib/Parse/ParseOpenMP.cpp Fri Jul 18 05:17:07 2014
@@ -85,6 +85,7 @@ Parser::DeclGroupPtrTy Parser::ParseOpen
   case OMPD_task:
   case OMPD_taskyield:
   case OMPD_barrier:
+  case OMPD_taskwait:
   case OMPD_for:
   case OMPD_sections:
   case OMPD_section:
@@ -109,8 +110,8 @@ Parser::DeclGroupPtrTy Parser::ParseOpen
 ///       executable-directive:
 ///         annot_pragma_openmp 'parallel' | 'simd' | 'for' | 'sections' |
 ///         'section' | 'single' | 'master' | 'parallel for' |
-///         'parallel sections' | 'task' | 'taskyield' | 'barrier' {clause}
-///         annot_pragma_openmp_end
+///         'parallel sections' | 'task' | 'taskyield' | 'barrier' | 'taskwait'
+///         {clause} annot_pragma_openmp_end
 ///
 StmtResult
 Parser::ParseOpenMPDeclarativeOrExecutableDirective(bool StandAloneAllowed) {
@@ -148,6 +149,7 @@ Parser::ParseOpenMPDeclarativeOrExecutab
     break;
   case OMPD_taskyield:
   case OMPD_barrier:
+  case OMPD_taskwait:
     if (!StandAloneAllowed) {
       Diag(Tok, diag::err_omp_immediate_directive)
           << getOpenMPDirectiveName(DKind);

Modified: cfe/trunk/lib/Parse/ParseStmt.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Parse/ParseStmt.cpp?rev=213363&r1=213362&r2=213363&view=diff
==============================================================================
--- cfe/trunk/lib/Parse/ParseStmt.cpp (original)
+++ cfe/trunk/lib/Parse/ParseStmt.cpp Fri Jul 18 05:17:07 2014
@@ -804,7 +804,6 @@ StmtResult Parser::ParseCompoundStatemen
 ///         declaration
 /// [GNU]   '__extension__' declaration
 ///         statement
-/// [OMP]   openmp-directive            [TODO]
 ///
 /// [GNU] label-declarations:
 /// [GNU]   label-declaration
@@ -813,10 +812,6 @@ StmtResult Parser::ParseCompoundStatemen
 /// [GNU] label-declaration:
 /// [GNU]   '__label__' identifier-list ';'
 ///
-/// [OMP] openmp-directive:             [TODO]
-/// [OMP]   barrier-directive
-/// [OMP]   flush-directive
-///
 StmtResult Parser::ParseCompoundStatement(bool isStmtExpr,
                                           unsigned ScopeFlags) {
   assert(Tok.is(tok::l_brace) && "Not a compount stmt!");

Modified: cfe/trunk/lib/Sema/SemaOpenMP.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Sema/SemaOpenMP.cpp?rev=213363&r1=213362&r2=213363&view=diff
==============================================================================
--- cfe/trunk/lib/Sema/SemaOpenMP.cpp (original)
+++ cfe/trunk/lib/Sema/SemaOpenMP.cpp Fri Jul 18 05:17:07 2014
@@ -1052,6 +1052,14 @@ void Sema::ActOnOpenMPRegionStart(OpenMP
                              Params);
     break;
   }
+  case OMPD_taskwait: {
+    Sema::CapturedParamNameType Params[] = {
+        std::make_pair(StringRef(), QualType()) // __context with shared vars
+    };
+    ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
+                             Params);
+    break;
+  }
   case OMPD_threadprivate:
     llvm_unreachable("OpenMP Directive is not allowed");
   case OMPD_unknown:
@@ -1078,6 +1086,7 @@ bool CheckNestingOfRegions(Sema &SemaRef
   // | parallel         | task            | *                                  |
   // | parallel         | taskyield       | *                                  |
   // | parallel         | barrier         | *                                  |
+  // | parallel         | taskwait        | *                                  |
   // +------------------+-----------------+------------------------------------+
   // | for              | parallel        | *                                  |
   // | for              | for             | +                                  |
@@ -1091,6 +1100,7 @@ bool CheckNestingOfRegions(Sema &SemaRef
   // | for              | task            | *                                  |
   // | for              | taskyield       | *                                  |
   // | for              | barrier         | +                                  |
+  // | for              | taskwait        | *                                  |
   // +------------------+-----------------+------------------------------------+
   // | master           | parallel        | *                                  |
   // | master           | for             | +                                  |
@@ -1104,6 +1114,7 @@ bool CheckNestingOfRegions(Sema &SemaRef
   // | master           | task            | *                                  |
   // | master           | taskyield       | *                                  |
   // | master           | barrier         | +                                  |
+  // | master           | taskwait        | *                                  |
   // +------------------+-----------------+------------------------------------+
   // | simd             | parallel        |                                    |
   // | simd             | for             |                                    |
@@ -1117,6 +1128,7 @@ bool CheckNestingOfRegions(Sema &SemaRef
   // | simd             | task            |                                    |
   // | simd             | taskyield       |                                    |
   // | simd             | barrier         |                                    |
+  // | simd             | taskwait        |                                    |
   // +------------------+-----------------+------------------------------------+
   // | sections         | parallel        | *                                  |
   // | sections         | for             | +                                  |
@@ -1130,6 +1142,7 @@ bool CheckNestingOfRegions(Sema &SemaRef
   // | sections         | task            | *                                  |
   // | sections         | taskyield       | *                                  |
   // | sections         | barrier         | +                                  |
+  // | sections         | taskwait        | *                                  |
   // +------------------+-----------------+------------------------------------+
   // | section          | parallel        | *                                  |
   // | section          | for             | +                                  |
@@ -1143,6 +1156,7 @@ bool CheckNestingOfRegions(Sema &SemaRef
   // | section          | task            | *                                  |
   // | section          | taskyield       | *                                  |
   // | section          | barrier         | +                                  |
+  // | section          | taskwait        | *                                  |
   // +------------------+-----------------+------------------------------------+
   // | single           | parallel        | *                                  |
   // | single           | for             | +                                  |
@@ -1156,6 +1170,7 @@ bool CheckNestingOfRegions(Sema &SemaRef
   // | single           | task            | *                                  |
   // | single           | taskyield       | *                                  |
   // | single           | barrier         | +                                  |
+  // | single           | taskwait        | *                                  |
   // +------------------+-----------------+------------------------------------+
   // | parallel for     | parallel        | *                                  |
   // | parallel for     | for             | +                                  |
@@ -1169,6 +1184,7 @@ bool CheckNestingOfRegions(Sema &SemaRef
   // | parallel for     | task            | *                                  |
   // | parallel for     | taskyield       | *                                  |
   // | parallel for     | barrier         | +                                  |
+  // | parallel for     | taskwait        | *                                  |
   // +------------------+-----------------+------------------------------------+
   // | parallel sections| parallel        | *                                  |
   // | parallel sections| for             | +                                  |
@@ -1182,6 +1198,7 @@ bool CheckNestingOfRegions(Sema &SemaRef
   // | parallel sections| task            | *                                  |
   // | parallel sections| taskyield       | *                                  |
   // | parallel sections| barrier         | +                                  |
+  // | parallel sections| taskwait        | *                                  |
   // +------------------+-----------------+------------------------------------+
   // | task             | parallel        | *                                  |
   // | task             | for             | +                                  |
@@ -1195,6 +1212,7 @@ bool CheckNestingOfRegions(Sema &SemaRef
   // | task             | task            | *                                  |
   // | task             | taskyield       | *                                  |
   // | task             | barrier         | +                                  |
+  // | task             | taskwait        | *                                  |
   // +------------------+-----------------+------------------------------------+
   if (Stack->getCurScope()) {
     auto ParentRegion = Stack->getParentDirective();
@@ -1351,6 +1369,13 @@ StmtResult Sema::ActOnOpenMPExecutableDi
            "No associated statement allowed for 'omp barrier' directive");
     Res = ActOnOpenMPBarrierDirective(StartLoc, EndLoc);
     break;
+  case OMPD_taskwait:
+    assert(ClausesWithImplicit.empty() &&
+           "No clauses are allowed for 'omp taskwait' directive");
+    assert(AStmt == nullptr &&
+           "No associated statement allowed for 'omp taskwait' directive");
+    Res = ActOnOpenMPTaskwaitDirective(StartLoc, EndLoc);
+    break;
   case OMPD_threadprivate:
     llvm_unreachable("OpenMP Directive is not allowed");
   case OMPD_unknown:
@@ -2104,6 +2129,11 @@ StmtResult Sema::ActOnOpenMPBarrierDirec
   return OMPBarrierDirective::Create(Context, StartLoc, EndLoc);
 }
 
+StmtResult Sema::ActOnOpenMPTaskwaitDirective(SourceLocation StartLoc,
+                                              SourceLocation EndLoc) {
+  return OMPTaskwaitDirective::Create(Context, StartLoc, EndLoc);
+}
+
 OMPClause *Sema::ActOnOpenMPSingleExprClause(OpenMPClauseKind Kind, Expr *Expr,
                                              SourceLocation StartLoc,
                                              SourceLocation LParenLoc,

Modified: cfe/trunk/lib/Sema/TreeTransform.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Sema/TreeTransform.h?rev=213363&r1=213362&r2=213363&view=diff
==============================================================================
--- cfe/trunk/lib/Sema/TreeTransform.h (original)
+++ cfe/trunk/lib/Sema/TreeTransform.h Fri Jul 18 05:17:07 2014
@@ -6579,6 +6579,17 @@ TreeTransform<Derived>::TransformOMPBarr
   return Res;
 }
 
+template <typename Derived>
+StmtResult
+TreeTransform<Derived>::TransformOMPTaskwaitDirective(OMPTaskwaitDirective *D) {
+  DeclarationNameInfo DirName;
+  getDerived().getSema().StartOpenMPDSABlock(OMPD_taskwait, DirName, nullptr,
+                                             D->getLocStart());
+  StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
+  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  return Res;
+}
+
 //===----------------------------------------------------------------------===//
 // OpenMP clause transformation
 //===----------------------------------------------------------------------===//

Modified: cfe/trunk/lib/Serialization/ASTReaderStmt.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Serialization/ASTReaderStmt.cpp?rev=213363&r1=213362&r2=213363&view=diff
==============================================================================
--- cfe/trunk/lib/Serialization/ASTReaderStmt.cpp (original)
+++ cfe/trunk/lib/Serialization/ASTReaderStmt.cpp Fri Jul 18 05:17:07 2014
@@ -2000,6 +2000,11 @@ void ASTStmtReader::VisitOMPBarrierDirec
   VisitOMPExecutableDirective(D);
 }
 
+void ASTStmtReader::VisitOMPTaskwaitDirective(OMPTaskwaitDirective *D) {
+  VisitStmt(D);
+  VisitOMPExecutableDirective(D);
+}
+
 //===----------------------------------------------------------------------===//
 // ASTReader Implementation
 //===----------------------------------------------------------------------===//
@@ -2542,6 +2547,10 @@ Stmt *ASTReader::ReadStmtFromStream(Modu
       S = OMPBarrierDirective::CreateEmpty(Context, Empty);
       break;
 
+    case STMT_OMP_TASKWAIT_DIRECTIVE:
+      S = OMPTaskwaitDirective::CreateEmpty(Context, Empty);
+      break;
+
     case EXPR_CXX_OPERATOR_CALL:
       S = new (Context) CXXOperatorCallExpr(Context, Empty);
       break;

Modified: cfe/trunk/lib/Serialization/ASTWriterStmt.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Serialization/ASTWriterStmt.cpp?rev=213363&r1=213362&r2=213363&view=diff
==============================================================================
--- cfe/trunk/lib/Serialization/ASTWriterStmt.cpp (original)
+++ cfe/trunk/lib/Serialization/ASTWriterStmt.cpp Fri Jul 18 05:17:07 2014
@@ -1903,6 +1903,12 @@ void ASTStmtWriter::VisitOMPBarrierDirec
   Code = serialization::STMT_OMP_BARRIER_DIRECTIVE;
 }
 
+void ASTStmtWriter::VisitOMPTaskwaitDirective(OMPTaskwaitDirective *D) {
+  VisitStmt(D);
+  VisitOMPExecutableDirective(D);
+  Code = serialization::STMT_OMP_TASKWAIT_DIRECTIVE;
+}
+
 //===----------------------------------------------------------------------===//
 // ASTWriter Implementation
 //===----------------------------------------------------------------------===//

Modified: cfe/trunk/lib/StaticAnalyzer/Core/ExprEngine.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/StaticAnalyzer/Core/ExprEngine.cpp?rev=213363&r1=213362&r2=213363&view=diff
==============================================================================
--- cfe/trunk/lib/StaticAnalyzer/Core/ExprEngine.cpp (original)
+++ cfe/trunk/lib/StaticAnalyzer/Core/ExprEngine.cpp Fri Jul 18 05:17:07 2014
@@ -743,6 +743,7 @@ void ExprEngine::Visit(const Stmt *S, Ex
     case Stmt::OMPTaskDirectiveClass:
     case Stmt::OMPTaskyieldDirectiveClass:
     case Stmt::OMPBarrierDirectiveClass:
+    case Stmt::OMPTaskwaitDirectiveClass:
       llvm_unreachable("Stmt should not be in analyzer evaluation loop");
 
     case Stmt::ObjCSubscriptRefExprClass:

Modified: cfe/trunk/test/OpenMP/nesting_of_regions.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/OpenMP/nesting_of_regions.cpp?rev=213363&r1=213362&r2=213363&view=diff
==============================================================================
--- cfe/trunk/test/OpenMP/nesting_of_regions.cpp (original)
+++ cfe/trunk/test/OpenMP/nesting_of_regions.cpp Fri Jul 18 05:17:07 2014
@@ -56,6 +56,11 @@ void foo() {
 #pragma omp barrier
     bar();
   }
+#pragma omp parallel
+  {
+#pragma omp taskwait
+    bar();
+  }
 
 // SIMD DIRECTIVE
 #pragma omp simd
@@ -134,6 +139,11 @@ void foo() {
 #pragma omp barrier // expected-error {{OpenMP constructs may not be nested inside a simd region}}
     bar();
   }
+#pragma omp simd
+  for (int i = 0; i < 10; ++i) {
+#pragma omp taskwait // expected-error {{OpenMP constructs may not be nested inside a simd region}}
+    bar();
+  }
 
 // FOR DIRECTIVE
 #pragma omp for
@@ -231,6 +241,11 @@ void foo() {
 #pragma omp barrier // expected-error {{region cannot be closely nested inside 'for' region}}
     bar();
   }
+#pragma omp for
+  for (int i = 0; i < 10; ++i) {
+#pragma omp taskwait
+    bar();
+  }
 
 // SECTIONS DIRECTIVE
 #pragma omp sections
@@ -329,6 +344,10 @@ void foo() {
   {
 #pragma omp barrier // expected-error {{region cannot be closely nested inside 'sections' region}}
   }
+#pragma omp sections
+  {
+#pragma omp taskwait
+  }
 
 // SECTION DIRECTIVE
 #pragma omp section // expected-error {{orphaned 'omp section' directives are prohibited, it must be closely nested to a sections region}}
@@ -457,6 +476,14 @@ void foo() {
       bar();
     }
   }
+#pragma omp sections
+  {
+#pragma omp section
+    {
+#pragma omp taskwait
+      bar();
+    }
+  }
 
 // SINGLE DIRECTIVE
 #pragma omp single
@@ -545,6 +572,11 @@ void foo() {
 #pragma omp barrier // expected-error {{region cannot be closely nested inside 'single' region}}
     bar();
   }
+#pragma omp single
+  {
+#pragma omp taskwait
+    bar();
+  }
 
 // MASTER DIRECTIVE
 #pragma omp master
@@ -633,6 +665,11 @@ void foo() {
 #pragma omp barrier // expected-error {{region cannot be closely nested inside 'master' region}}
     bar();
   }
+#pragma omp master
+  {
+#pragma omp taskwait
+    bar();
+  }
 
 // PARALLEL FOR DIRECTIVE
 #pragma omp parallel for
@@ -730,6 +767,11 @@ void foo() {
 #pragma omp barrier // expected-error {{region cannot be closely nested inside 'parallel for' region}}
     bar();
   }
+#pragma omp parallel for
+  for (int i = 0; i < 10; ++i) {
+#pragma omp taskwait
+    bar();
+  }
 
 // PARALLEL SECTIONS DIRECTIVE
 #pragma omp parallel sections
@@ -825,6 +867,10 @@ void foo() {
   {
 #pragma omp barrier // expected-error {{region cannot be closely nested inside 'parallel sections' region}}
   }
+#pragma omp parallel sections
+  {
+#pragma omp taskwait
+  }
 
 // TASK DIRECTIVE
 #pragma omp task
@@ -875,6 +921,11 @@ void foo() {
 #pragma omp barrier // expected-error {{region cannot be closely nested inside 'task' region}}
     bar();
   }
+#pragma omp task
+  {
+#pragma omp taskwait
+    bar();
+  }
 }
 
 void foo() {
@@ -932,6 +983,11 @@ void foo() {
 #pragma omp barrier
     bar();
   }
+#pragma omp parallel
+  {
+#pragma omp taskwait
+    bar();
+  }
 
 // SIMD DIRECTIVE
 #pragma omp simd
@@ -1003,6 +1059,11 @@ void foo() {
 #pragma omp barrier // expected-error {{OpenMP constructs may not be nested inside a simd region}}
     bar();
   }
+#pragma omp simd
+  for (int i = 0; i < 10; ++i) {
+#pragma omp taskwait // expected-error {{OpenMP constructs may not be nested inside a simd region}}
+    bar();
+  }
 
 // FOR DIRECTIVE
 #pragma omp for
@@ -1091,6 +1152,11 @@ void foo() {
 #pragma omp barrier // expected-error {{region cannot be closely nested inside 'for' region}}
     bar();
   }
+#pragma omp for
+  for (int i = 0; i < 10; ++i) {
+#pragma omp taskwait
+    bar();
+  }
 
 // SECTIONS DIRECTIVE
 #pragma omp sections
@@ -1178,6 +1244,10 @@ void foo() {
 #pragma omp barrier // expected-error {{region cannot be closely nested inside 'sections' region}}
     bar();
   }
+#pragma omp sections
+  {
+#pragma omp taskwait
+  }
 
 // SECTION DIRECTIVE
 #pragma omp section // expected-error {{orphaned 'omp section' directives are prohibited, it must be closely nested to a sections region}}
@@ -1306,6 +1376,14 @@ void foo() {
       bar();
     }
   }
+#pragma omp sections
+  {
+#pragma omp section
+    {
+#pragma omp taskwait
+      bar();
+    }
+  }
 
 // SINGLE DIRECTIVE
 #pragma omp single
@@ -1389,6 +1467,11 @@ void foo() {
 #pragma omp barrier // expected-error {{region cannot be closely nested inside 'single' region}}
     bar();
   }
+#pragma omp single
+  {
+#pragma omp taskwait
+    bar();
+  }
 
 // MASTER DIRECTIVE
 #pragma omp master
@@ -1477,6 +1560,11 @@ void foo() {
 #pragma omp barrier // expected-error {{region cannot be closely nested inside 'master' region}}
     bar();
   }
+#pragma omp master
+  {
+#pragma omp taskwait
+    bar();
+  }
 
 // PARALLEL FOR DIRECTIVE
 #pragma omp parallel for
@@ -1573,6 +1661,11 @@ void foo() {
 #pragma omp barrier // expected-error {{region cannot be closely nested inside 'parallel for' region}}
     bar();
   }
+#pragma omp parallel for
+  for (int i = 0; i < 10; ++i) {
+#pragma omp taskwait
+    bar();
+  }
 
 // PARALLEL SECTIONS DIRECTIVE
 #pragma omp parallel sections
@@ -1666,6 +1759,10 @@ void foo() {
   {
 #pragma omp barrier // expected-error {{region cannot be closely nested inside 'parallel sections' region}}
   }
+#pragma omp parallel sections
+  {
+#pragma omp taskwait
+  }
 
 // TASK DIRECTIVE
 #pragma omp task
@@ -1716,6 +1813,11 @@ void foo() {
 #pragma omp barrier // expected-error {{region cannot be closely nested inside 'task' region}}
     bar();
   }
+#pragma omp task
+  {
+#pragma omp taskwait
+    bar();
+  }
   return foo<int>();
 }
 

Added: cfe/trunk/test/OpenMP/taskwait_ast_print.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/OpenMP/taskwait_ast_print.cpp?rev=213363&view=auto
==============================================================================
--- cfe/trunk/test/OpenMP/taskwait_ast_print.cpp (added)
+++ cfe/trunk/test/OpenMP/taskwait_ast_print.cpp Fri Jul 18 05:17:07 2014
@@ -0,0 +1,32 @@
+// RUN: %clang_cc1 -verify -fopenmp=libiomp5 -ast-print %s | FileCheck %s
+// RUN: %clang_cc1 -fopenmp=libiomp5 -x c++ -std=c++11 -emit-pch -o %t %s
+// RUN: %clang_cc1 -fopenmp=libiomp5 -std=c++11 -include-pch %t -fsyntax-only -verify %s -ast-print | FileCheck %s
+// expected-no-diagnostics
+
+#ifndef HEADER
+#define HEADER
+
+void foo() {}
+
+template <class T>
+T tmain(T argc) {
+  static T a;
+#pragma omp taskwait
+  return a + argc;
+}
+// CHECK:      static int a;
+// CHECK-NEXT: #pragma omp taskwait
+// CHECK:      static char a;
+// CHECK-NEXT: #pragma omp taskwait
+// CHECK:      static T a;
+// CHECK-NEXT: #pragma omp taskwait
+
+int main(int argc, char **argv) {
+  static int a;
+// CHECK: static int a;
+#pragma omp taskwait
+  // CHECK-NEXT: #pragma omp taskwait
+  return tmain(argc) + tmain(argv[0][0]) + a;
+}
+
+#endif

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Added: cfe/trunk/test/OpenMP/taskwait_messages.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/OpenMP/taskwait_messages.cpp?rev=213363&view=auto
==============================================================================
--- cfe/trunk/test/OpenMP/taskwait_messages.cpp (added)
+++ cfe/trunk/test/OpenMP/taskwait_messages.cpp Fri Jul 18 05:17:07 2014
@@ -0,0 +1,110 @@
+// RUN: %clang_cc1 -verify -fopenmp=libiomp5 -ferror-limit 100 %s
+
+template <class T>
+T tmain(T argc) {
+#pragma omp taskwait
+  ;
+#pragma omp taskwait untied  // expected-error {{unexpected OpenMP clause 'untied' in directive '#pragma omp taskwait'}}
+#pragma omp taskwait unknown // expected-warning {{extra tokens at the end of '#pragma omp taskwait' are ignored}}
+  if (argc)
+#pragma omp taskwait // expected-error {{'#pragma omp taskwait' cannot be an immediate substatement}}
+    if (argc) {
+#pragma omp taskwait
+    }
+  while (argc)
+#pragma omp taskwait // expected-error {{'#pragma omp taskwait' cannot be an immediate substatement}}
+    while (argc) {
+#pragma omp taskwait
+    }
+  do
+#pragma omp taskwait // expected-error {{'#pragma omp taskwait' cannot be an immediate substatement}}
+    while (argc)
+      ;
+  do {
+#pragma omp taskwait
+  } while (argc);
+  switch (argc)
+#pragma omp taskwait // expected-error {{'#pragma omp taskwait' cannot be an immediate substatement}}
+    switch (argc)
+    case 1:
+#pragma omp taskwait // expected-error {{'#pragma omp taskwait' cannot be an immediate substatement}}
+  switch (argc)
+  case 1: {
+#pragma omp taskwait
+  }
+  switch (argc) {
+#pragma omp taskwait
+  case 1:
+#pragma omp taskwait // expected-error {{'#pragma omp taskwait' cannot be an immediate substatement}}
+    break;
+  default: {
+#pragma omp taskwait
+  } break;
+  }
+  for (;;)
+#pragma omp taskwait // expected-error {{'#pragma omp taskwait' cannot be an immediate substatement}}
+    for (;;) {
+#pragma omp taskwait
+    }
+label:
+#pragma omp taskwait // expected-error {{'#pragma omp taskwait' cannot be an immediate substatement}}
+label1 : {
+#pragma omp taskwait
+}
+
+  return T();
+}
+
+int main(int argc, char **argv) {
+#pragma omp taskwait
+  ;
+#pragma omp taskwait untied  // expected-error {{unexpected OpenMP clause 'untied' in directive '#pragma omp taskwait'}}
+#pragma omp taskwait unknown // expected-warning {{extra tokens at the end of '#pragma omp taskwait' are ignored}}
+  if (argc)
+#pragma omp taskwait // expected-error {{'#pragma omp taskwait' cannot be an immediate substatement}}
+    if (argc) {
+#pragma omp taskwait
+    }
+  while (argc)
+#pragma omp taskwait // expected-error {{'#pragma omp taskwait' cannot be an immediate substatement}}
+    while (argc) {
+#pragma omp taskwait
+    }
+  do
+#pragma omp taskwait // expected-error {{'#pragma omp taskwait' cannot be an immediate substatement}}
+    while (argc)
+      ;
+  do {
+#pragma omp taskwait
+  } while (argc);
+  switch (argc)
+#pragma omp taskwait // expected-error {{'#pragma omp taskwait' cannot be an immediate substatement}}
+    switch (argc)
+    case 1:
+#pragma omp taskwait // expected-error {{'#pragma omp taskwait' cannot be an immediate substatement}}
+  switch (argc)
+  case 1: {
+#pragma omp taskwait
+  }
+  switch (argc) {
+#pragma omp taskwait
+  case 1:
+#pragma omp taskwait // expected-error {{'#pragma omp taskwait' cannot be an immediate substatement}}
+    break;
+  default: {
+#pragma omp taskwait
+  } break;
+  }
+  for (;;)
+#pragma omp taskwait // expected-error {{'#pragma omp taskwait' cannot be an immediate substatement}}
+    for (;;) {
+#pragma omp taskwait
+    }
+label:
+#pragma omp taskwait // expected-error {{'#pragma omp taskwait' cannot be an immediate substatement}}
+label1 : {
+#pragma omp taskwait
+}
+
+  return tmain(argc);
+}

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Modified: cfe/trunk/tools/libclang/CIndex.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/tools/libclang/CIndex.cpp?rev=213363&r1=213362&r2=213363&view=diff
==============================================================================
--- cfe/trunk/tools/libclang/CIndex.cpp (original)
+++ cfe/trunk/tools/libclang/CIndex.cpp Fri Jul 18 05:17:07 2014
@@ -1866,6 +1866,7 @@ public:
   void VisitOMPTaskDirective(const OMPTaskDirective *D);
   void VisitOMPTaskyieldDirective(const OMPTaskyieldDirective *D);
   void VisitOMPBarrierDirective(const OMPBarrierDirective *D);
+  void VisitOMPTaskwaitDirective(const OMPTaskwaitDirective *D);
 
 private:
   void AddDeclarationNameInfo(const Stmt *S);
@@ -2352,6 +2353,10 @@ void EnqueueVisitor::VisitOMPBarrierDire
   VisitOMPExecutableDirective(D);
 }
 
+void EnqueueVisitor::VisitOMPTaskwaitDirective(const OMPTaskwaitDirective *D) {
+  VisitOMPExecutableDirective(D);
+}
+
 void CursorVisitor::EnqueueWorkList(VisitorWorkList &WL, const Stmt *S) {
   EnqueueVisitor(WL, MakeCXCursor(S, StmtParent, TU,RegionOfInterest)).Visit(S);
 }
@@ -4048,6 +4053,8 @@ CXString clang_getCursorKindSpelling(enu
     return cxstring::createRef("OMPTaskyieldDirective");
   case CXCursor_OMPBarrierDirective:
     return cxstring::createRef("OMPBarrierDirective");
+  case CXCursor_OMPTaskwaitDirective:
+    return cxstring::createRef("OMPTaskwaitDirective");
   }
 
   llvm_unreachable("Unhandled CXCursorKind");

Modified: cfe/trunk/tools/libclang/CXCursor.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/tools/libclang/CXCursor.cpp?rev=213363&r1=213362&r2=213363&view=diff
==============================================================================
--- cfe/trunk/tools/libclang/CXCursor.cpp (original)
+++ cfe/trunk/tools/libclang/CXCursor.cpp Fri Jul 18 05:17:07 2014
@@ -553,6 +553,9 @@ CXCursor cxcursor::MakeCXCursor(const St
   case Stmt::OMPBarrierDirectiveClass:
     K = CXCursor_OMPBarrierDirective;
     break;
+  case Stmt::OMPTaskwaitDirectiveClass:
+    K = CXCursor_OMPTaskwaitDirective;
+    break;
   }
 
   CXCursor C = { K, 0, { Parent, S, TU } };





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