r213735 - [OPENMP] Initial parsing and sema analysis for 'update' clause of 'atomic' directive.

Alexey Bataev a.bataev at hotmail.com
Wed Jul 23 03:25:33 PDT 2014


Author: abataev
Date: Wed Jul 23 05:25:33 2014
New Revision: 213735

URL: http://llvm.org/viewvc/llvm-project?rev=213735&view=rev
Log:
[OPENMP] Initial parsing and sema analysis for 'update' clause of 'atomic' directive.

Modified:
    cfe/trunk/include/clang/AST/DataRecursiveASTVisitor.h
    cfe/trunk/include/clang/AST/OpenMPClause.h
    cfe/trunk/include/clang/AST/RecursiveASTVisitor.h
    cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td
    cfe/trunk/include/clang/Basic/OpenMPKinds.def
    cfe/trunk/include/clang/Sema/Sema.h
    cfe/trunk/lib/AST/StmtPrinter.cpp
    cfe/trunk/lib/AST/StmtProfile.cpp
    cfe/trunk/lib/Basic/OpenMPKinds.cpp
    cfe/trunk/lib/Parse/ParseOpenMP.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/atomic_ast_print.cpp
    cfe/trunk/test/OpenMP/atomic_messages.cpp
    cfe/trunk/test/OpenMP/nesting_of_regions.cpp
    cfe/trunk/tools/libclang/CIndex.cpp

Modified: cfe/trunk/include/clang/AST/DataRecursiveASTVisitor.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/AST/DataRecursiveASTVisitor.h?rev=213735&r1=213734&r2=213735&view=diff
==============================================================================
--- cfe/trunk/include/clang/AST/DataRecursiveASTVisitor.h (original)
+++ cfe/trunk/include/clang/AST/DataRecursiveASTVisitor.h Wed Jul 23 05:25:33 2014
@@ -2431,6 +2431,11 @@ bool RecursiveASTVisitor<Derived>::Visit
 }
 
 template <typename Derived>
+bool RecursiveASTVisitor<Derived>::VisitOMPUpdateClause(OMPUpdateClause *) {
+  return true;
+}
+
+template <typename Derived>
 template <typename T>
 bool RecursiveASTVisitor<Derived>::VisitOMPClauseList(T *Node) {
   for (auto *E : Node->varlists()) {

Modified: cfe/trunk/include/clang/AST/OpenMPClause.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/AST/OpenMPClause.h?rev=213735&r1=213734&r2=213735&view=diff
==============================================================================
--- cfe/trunk/include/clang/AST/OpenMPClause.h (original)
+++ cfe/trunk/include/clang/AST/OpenMPClause.h Wed Jul 23 05:25:33 2014
@@ -827,6 +827,36 @@ public:
   StmtRange children() { return StmtRange(); }
 };
 
+/// \brief This represents 'update' clause in the '#pragma omp atomic'
+/// directive.
+///
+/// \code
+/// #pragma omp atomic update
+/// \endcode
+/// In this example directive '#pragma omp atomic' has 'update' clause.
+///
+class OMPUpdateClause : public OMPClause {
+public:
+  /// \brief Build 'update' clause.
+  ///
+  /// \param StartLoc Starting location of the clause.
+  /// \param EndLoc Ending location of the clause.
+  ///
+  OMPUpdateClause(SourceLocation StartLoc, SourceLocation EndLoc)
+      : OMPClause(OMPC_update, StartLoc, EndLoc) {}
+
+  /// \brief Build an empty clause.
+  ///
+  OMPUpdateClause()
+      : OMPClause(OMPC_update, SourceLocation(), SourceLocation()) {}
+
+  static bool classof(const OMPClause *T) {
+    return T->getClauseKind() == OMPC_update;
+  }
+
+  StmtRange children() { return StmtRange(); }
+};
+
 /// \brief This represents clause 'private' in the '#pragma omp ...' directives.
 ///
 /// \code

Modified: cfe/trunk/include/clang/AST/RecursiveASTVisitor.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/AST/RecursiveASTVisitor.h?rev=213735&r1=213734&r2=213735&view=diff
==============================================================================
--- cfe/trunk/include/clang/AST/RecursiveASTVisitor.h (original)
+++ cfe/trunk/include/clang/AST/RecursiveASTVisitor.h Wed Jul 23 05:25:33 2014
@@ -2453,6 +2453,11 @@ bool RecursiveASTVisitor<Derived>::Visit
 }
 
 template <typename Derived>
+bool RecursiveASTVisitor<Derived>::VisitOMPUpdateClause(OMPUpdateClause *) {
+  return true;
+}
+
+template <typename Derived>
 template <typename T>
 bool RecursiveASTVisitor<Derived>::VisitOMPClauseList(T *Node) {
   for (auto *E : Node->varlists()) {

Modified: cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td?rev=213735&r1=213734&r2=213735&view=diff
==============================================================================
--- cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td (original)
+++ cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td Wed Jul 23 05:25:33 2014
@@ -7154,6 +7154,9 @@ def err_omp_atomic_read_not_expression_s
 def err_omp_atomic_write_not_expression_statement : Error<
   "the statement for 'atomic write' must be an expression statement of form 'x = expr;',"
   " where x is an l-value expression with scalar type">;
+def err_omp_atomic_update_not_expression_statement : Error<
+  "the statement for 'atomic%select{| update}0' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x',"
+  " where x is an l-value expression with scalar type">;
 def err_omp_atomic_several_clauses : Error<
   "directive '#pragma omp atomic' cannot contain more than one 'read', 'write', 'update' or 'capture' clause">;
 def note_omp_atomic_previous_clause : Note<

Modified: cfe/trunk/include/clang/Basic/OpenMPKinds.def
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/OpenMPKinds.def?rev=213735&r1=213734&r2=213735&view=diff
==============================================================================
--- cfe/trunk/include/clang/Basic/OpenMPKinds.def (original)
+++ cfe/trunk/include/clang/Basic/OpenMPKinds.def Wed Jul 23 05:25:33 2014
@@ -103,6 +103,7 @@ OPENMP_CLAUSE(mergeable, OMPMergeableCla
 OPENMP_CLAUSE(flush, OMPFlushClause)
 OPENMP_CLAUSE(read, OMPReadClause)
 OPENMP_CLAUSE(write, OMPWriteClause)
+OPENMP_CLAUSE(update, OMPUpdateClause)
 
 // Clauses allowed for OpenMP directive 'parallel'.
 OPENMP_PARALLEL_CLAUSE(if)
@@ -203,6 +204,7 @@ OPENMP_TASK_CLAUSE(mergeable)
 // TODO More clauses allowed for OpenMP directive 'atomic'.
 OPENMP_ATOMIC_CLAUSE(read)
 OPENMP_ATOMIC_CLAUSE(write)
+OPENMP_ATOMIC_CLAUSE(update)
 
 #undef OPENMP_SCHEDULE_KIND
 #undef OPENMP_PROC_BIND_KIND

Modified: cfe/trunk/include/clang/Sema/Sema.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Sema/Sema.h?rev=213735&r1=213734&r2=213735&view=diff
==============================================================================
--- cfe/trunk/include/clang/Sema/Sema.h (original)
+++ cfe/trunk/include/clang/Sema/Sema.h Wed Jul 23 05:25:33 2014
@@ -7488,6 +7488,9 @@ public:
   /// \brief Called on well-formed 'write' clause.
   OMPClause *ActOnOpenMPWriteClause(SourceLocation StartLoc,
                                     SourceLocation EndLoc);
+  /// \brief Called on well-formed 'update' clause.
+  OMPClause *ActOnOpenMPUpdateClause(SourceLocation StartLoc,
+                                     SourceLocation EndLoc);
 
   OMPClause *
   ActOnOpenMPVarListClause(OpenMPClauseKind Kind, ArrayRef<Expr *> Vars,

Modified: cfe/trunk/lib/AST/StmtPrinter.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/AST/StmtPrinter.cpp?rev=213735&r1=213734&r2=213735&view=diff
==============================================================================
--- cfe/trunk/lib/AST/StmtPrinter.cpp (original)
+++ cfe/trunk/lib/AST/StmtPrinter.cpp Wed Jul 23 05:25:33 2014
@@ -669,6 +669,10 @@ void OMPClausePrinter::VisitOMPReadClaus
 
 void OMPClausePrinter::VisitOMPWriteClause(OMPWriteClause *) { OS << "write"; }
 
+void OMPClausePrinter::VisitOMPUpdateClause(OMPUpdateClause *) {
+  OS << "update";
+}
+
 template<typename T>
 void OMPClausePrinter::VisitOMPClauseList(T *Node, char StartSym) {
   for (typename T::varlist_iterator I = Node->varlist_begin(),

Modified: cfe/trunk/lib/AST/StmtProfile.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/AST/StmtProfile.cpp?rev=213735&r1=213734&r2=213735&view=diff
==============================================================================
--- cfe/trunk/lib/AST/StmtProfile.cpp (original)
+++ cfe/trunk/lib/AST/StmtProfile.cpp Wed Jul 23 05:25:33 2014
@@ -314,6 +314,8 @@ void OMPClauseProfiler::VisitOMPReadClau
 
 void OMPClauseProfiler::VisitOMPWriteClause(const OMPWriteClause *) {}
 
+void OMPClauseProfiler::VisitOMPUpdateClause(const OMPUpdateClause *) {}
+
 template<typename T>
 void OMPClauseProfiler::VisitOMPClauseList(T *Node) {
   for (auto *I : Node->varlists())

Modified: cfe/trunk/lib/Basic/OpenMPKinds.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Basic/OpenMPKinds.cpp?rev=213735&r1=213734&r2=213735&view=diff
==============================================================================
--- cfe/trunk/lib/Basic/OpenMPKinds.cpp (original)
+++ cfe/trunk/lib/Basic/OpenMPKinds.cpp Wed Jul 23 05:25:33 2014
@@ -110,6 +110,7 @@ unsigned clang::getOpenMPSimpleClauseTyp
   case OMPC_flush:
   case OMPC_read:
   case OMPC_write:
+  case OMPC_update:
     break;
   }
   llvm_unreachable("Invalid OpenMP simple clause kind");
@@ -171,6 +172,7 @@ const char *clang::getOpenMPSimpleClause
   case OMPC_flush:
   case OMPC_read:
   case OMPC_write:
+  case OMPC_update:
     break;
   }
   llvm_unreachable("Invalid OpenMP simple clause kind");

Modified: cfe/trunk/lib/Parse/ParseOpenMP.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Parse/ParseOpenMP.cpp?rev=213735&r1=213734&r2=213735&view=diff
==============================================================================
--- cfe/trunk/lib/Parse/ParseOpenMP.cpp (original)
+++ cfe/trunk/lib/Parse/ParseOpenMP.cpp Wed Jul 23 05:25:33 2014
@@ -342,7 +342,8 @@ bool Parser::ParseOpenMPSimpleVarList(Op
 ///       | linear-clause | aligned-clause | collapse-clause |
 ///       lastprivate-clause | reduction-clause | proc_bind-clause |
 ///       schedule-clause | copyin-clause | copyprivate-clause | untied-clause |
-///       mergeable-clause | flush-clause | read-clause | write-clause
+///       mergeable-clause | flush-clause | read-clause | write-clause |
+///       update-clause
 ///
 OMPClause *Parser::ParseOpenMPClause(OpenMPDirectiveKind DKind,
                                      OpenMPClauseKind CKind, bool FirstClause) {
@@ -410,6 +411,7 @@ OMPClause *Parser::ParseOpenMPClause(Ope
   case OMPC_mergeable:
   case OMPC_read:
   case OMPC_write:
+  case OMPC_update:
     // OpenMP [2.7.1, Restrictions, p. 9]
     //  Only one ordered clause can appear on a loop directive.
     // OpenMP [2.7.1, Restrictions, C/C++, p. 4]

Modified: cfe/trunk/lib/Sema/SemaOpenMP.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Sema/SemaOpenMP.cpp?rev=213735&r1=213734&r2=213735&view=diff
==============================================================================
--- cfe/trunk/lib/Sema/SemaOpenMP.cpp (original)
+++ cfe/trunk/lib/Sema/SemaOpenMP.cpp Wed Jul 23 05:25:33 2014
@@ -2389,7 +2389,8 @@ StmtResult Sema::ActOnOpenMPAtomicDirect
   OpenMPClauseKind AtomicKind = OMPC_unknown;
   SourceLocation AtomicKindLoc;
   for (auto *C : Clauses) {
-    if (C->getClauseKind() == OMPC_read || C->getClauseKind() == OMPC_write) {
+    if (C->getClauseKind() == OMPC_read || C->getClauseKind() == OMPC_write ||
+        C->getClauseKind() == OMPC_update) {
       if (AtomicKind != OMPC_unknown) {
         Diag(C->getLocStart(), diag::err_omp_atomic_several_clauses)
             << SourceRange(C->getLocStart(), C->getLocEnd());
@@ -2413,6 +2414,13 @@ StmtResult Sema::ActOnOpenMPAtomicDirect
            diag::err_omp_atomic_write_not_expression_statement);
       return StmtError();
     }
+  } else if (AtomicKind == OMPC_update || AtomicKind == OMPC_unknown) {
+    if (!isa<Expr>(CS->getCapturedStmt())) {
+      Diag(CS->getCapturedStmt()->getLocStart(),
+           diag::err_omp_atomic_update_not_expression_statement)
+          << (AtomicKind == OMPC_update);
+      return StmtError();
+    }
   }
 
   getCurFunction()->setHasBranchProtectedScope();
@@ -2461,6 +2469,7 @@ OMPClause *Sema::ActOnOpenMPSingleExprCl
   case OMPC_flush:
   case OMPC_read:
   case OMPC_write:
+  case OMPC_update:
   case OMPC_unknown:
     llvm_unreachable("Clause is not allowed.");
   }
@@ -2665,6 +2674,7 @@ OMPClause *Sema::ActOnOpenMPSimpleClause
   case OMPC_flush:
   case OMPC_read:
   case OMPC_write:
+  case OMPC_update:
   case OMPC_unknown:
     llvm_unreachable("Clause is not allowed.");
   }
@@ -2782,6 +2792,7 @@ OMPClause *Sema::ActOnOpenMPSingleExprWi
   case OMPC_flush:
   case OMPC_read:
   case OMPC_write:
+  case OMPC_update:
   case OMPC_unknown:
     llvm_unreachable("Clause is not allowed.");
   }
@@ -2867,6 +2878,9 @@ OMPClause *Sema::ActOnOpenMPClause(OpenM
   case OMPC_write:
     Res = ActOnOpenMPWriteClause(StartLoc, EndLoc);
     break;
+  case OMPC_update:
+    Res = ActOnOpenMPUpdateClause(StartLoc, EndLoc);
+    break;
   case OMPC_if:
   case OMPC_final:
   case OMPC_num_threads:
@@ -2923,6 +2937,11 @@ OMPClause *Sema::ActOnOpenMPWriteClause(
   return new (Context) OMPWriteClause(StartLoc, EndLoc);
 }
 
+OMPClause *Sema::ActOnOpenMPUpdateClause(SourceLocation StartLoc,
+                                         SourceLocation EndLoc) {
+  return new (Context) OMPUpdateClause(StartLoc, EndLoc);
+}
+
 OMPClause *Sema::ActOnOpenMPVarListClause(
     OpenMPClauseKind Kind, ArrayRef<Expr *> VarList, Expr *TailExpr,
     SourceLocation StartLoc, SourceLocation LParenLoc, SourceLocation ColonLoc,
@@ -2978,6 +2997,7 @@ OMPClause *Sema::ActOnOpenMPVarListClaus
   case OMPC_threadprivate:
   case OMPC_read:
   case OMPC_write:
+  case OMPC_update:
   case OMPC_unknown:
     llvm_unreachable("Clause is not allowed.");
   }

Modified: cfe/trunk/lib/Sema/TreeTransform.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Sema/TreeTransform.h?rev=213735&r1=213734&r2=213735&view=diff
==============================================================================
--- cfe/trunk/lib/Sema/TreeTransform.h (original)
+++ cfe/trunk/lib/Sema/TreeTransform.h Wed Jul 23 05:25:33 2014
@@ -6775,6 +6775,13 @@ OMPClause *TreeTransform<Derived>::Trans
 
 template <typename Derived>
 OMPClause *
+TreeTransform<Derived>::TransformOMPUpdateClause(OMPUpdateClause *C) {
+  // No need to rebuild this clause, no template-dependent parameters.
+  return C;
+}
+
+template <typename Derived>
+OMPClause *
 TreeTransform<Derived>::TransformOMPPrivateClause(OMPPrivateClause *C) {
   llvm::SmallVector<Expr *, 16> Vars;
   Vars.reserve(C->varlist_size());

Modified: cfe/trunk/lib/Serialization/ASTReaderStmt.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Serialization/ASTReaderStmt.cpp?rev=213735&r1=213734&r2=213735&view=diff
==============================================================================
--- cfe/trunk/lib/Serialization/ASTReaderStmt.cpp (original)
+++ cfe/trunk/lib/Serialization/ASTReaderStmt.cpp Wed Jul 23 05:25:33 2014
@@ -1721,6 +1721,9 @@ OMPClause *OMPClauseReader::readClause()
   case OMPC_write:
     C = new (Context) OMPWriteClause();
     break;
+  case OMPC_update:
+    C = new (Context) OMPUpdateClause();
+    break;
   case OMPC_private:
     C = OMPPrivateClause::CreateEmpty(Context, Record[Idx++]);
     break;
@@ -1819,6 +1822,8 @@ void OMPClauseReader::VisitOMPReadClause
 
 void OMPClauseReader::VisitOMPWriteClause(OMPWriteClause *) {}
 
+void OMPClauseReader::VisitOMPUpdateClause(OMPUpdateClause *) {}
+
 void OMPClauseReader::VisitOMPPrivateClause(OMPPrivateClause *C) {
   C->setLParenLoc(Reader->ReadSourceLocation(Record, Idx));
   unsigned NumVars = C->varlist_size();

Modified: cfe/trunk/lib/Serialization/ASTWriterStmt.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Serialization/ASTWriterStmt.cpp?rev=213735&r1=213734&r2=213735&view=diff
==============================================================================
--- cfe/trunk/lib/Serialization/ASTWriterStmt.cpp (original)
+++ cfe/trunk/lib/Serialization/ASTWriterStmt.cpp Wed Jul 23 05:25:33 2014
@@ -1739,6 +1739,8 @@ void OMPClauseWriter::VisitOMPReadClause
 
 void OMPClauseWriter::VisitOMPWriteClause(OMPWriteClause *) {}
 
+void OMPClauseWriter::VisitOMPUpdateClause(OMPUpdateClause *) {}
+
 void OMPClauseWriter::VisitOMPPrivateClause(OMPPrivateClause *C) {
   Record.push_back(C->varlist_size());
   Writer->Writer.AddSourceLocation(C->getLParenLoc(), Record);

Modified: cfe/trunk/test/OpenMP/atomic_ast_print.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/OpenMP/atomic_ast_print.cpp?rev=213735&r1=213734&r2=213735&view=diff
==============================================================================
--- cfe/trunk/test/OpenMP/atomic_ast_print.cpp (original)
+++ cfe/trunk/test/OpenMP/atomic_ast_print.cpp Wed Jul 23 05:25:33 2014
@@ -15,6 +15,8 @@ T foo(T argc) {
   a = argc;
 #pragma omp atomic write
   a = argc + argc;
+#pragma omp atomic update
+  a = a + argc;
   return T();
 }
 
@@ -25,6 +27,8 @@ T foo(T argc) {
 // CHECK-NEXT: a = argc;
 // CHECK-NEXT: #pragma omp atomic write
 // CHECK-NEXT: a = argc + argc;
+// CHECK-NEXT: #pragma omp atomic update
+// CHECK-NEXT: a = a + argc;
 // CHECK: T a = T();
 // CHECK-NEXT: #pragma omp atomic
 // CHECK-NEXT: a++;
@@ -32,6 +36,8 @@ T foo(T argc) {
 // CHECK-NEXT: a = argc;
 // CHECK-NEXT: #pragma omp atomic write
 // CHECK-NEXT: a = argc + argc;
+// CHECK-NEXT: #pragma omp atomic update
+// CHECK-NEXT: a = a + argc;
 
 int main(int argc, char **argv) {
   int a = 0;
@@ -42,12 +48,16 @@ int main(int argc, char **argv) {
   a = argc;
 #pragma omp atomic write
   a = argc + argc;
+#pragma omp atomic update
+  a = a + argc;
   // CHECK-NEXT: #pragma omp atomic
   // CHECK-NEXT: a++;
   // CHECK-NEXT: #pragma omp atomic read
   // CHECK-NEXT: a = argc;
   // CHECK-NEXT: #pragma omp atomic write
   // CHECK-NEXT: a = argc + argc;
+  // CHECK-NEXT: #pragma omp atomic update
+  // CHECK-NEXT: a = a + argc;
   return foo(a);
 }
 

Modified: cfe/trunk/test/OpenMP/atomic_messages.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/OpenMP/atomic_messages.cpp?rev=213735&r1=213734&r2=213735&view=diff
==============================================================================
--- cfe/trunk/test/OpenMP/atomic_messages.cpp (original)
+++ cfe/trunk/test/OpenMP/atomic_messages.cpp Wed Jul 23 05:25:33 2014
@@ -4,12 +4,14 @@ int foo() {
 L1:
   foo();
 #pragma omp atomic
+// expected-error at +1 {{the statement for 'atomic' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x', where x is an l-value expression with scalar type}}
   {
     foo();
     goto L1; // expected-error {{use of undeclared label 'L1'}}
   }
   goto L2; // expected-error {{use of undeclared label 'L2'}}
 #pragma omp atomic
+// expected-error at +1 {{the statement for 'atomic' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x', where x is an l-value expression with scalar type}}
   {
     foo();
   L2:
@@ -74,6 +76,41 @@ int write() {
 }
 
 template <class T>
+T update() {
+  T a, b = 0;
+// Test for atomic update
+#pragma omp atomic update
+// expected-error at +1 {{the statement for 'atomic update' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x', where x is an l-value expression with scalar type}}
+  ;
+// expected-error at +1 {{directive '#pragma omp atomic' cannot contain more than one 'update' clause}}
+#pragma omp atomic update update
+  a += b;
+
+#pragma omp atomic
+// expected-error at +1 {{the statement for 'atomic' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x', where x is an l-value expression with scalar type}}
+  ;
+
+  return T();
+}
+
+int update() {
+  int a, b = 0;
+// Test for atomic update
+#pragma omp atomic update
+// expected-error at +1 {{the statement for 'atomic update' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x', where x is an l-value expression with scalar type}}
+  ;
+// expected-error at +1 {{directive '#pragma omp atomic' cannot contain more than one 'update' clause}}
+#pragma omp atomic update update
+  a += b;
+
+#pragma omp atomic
+// expected-error at +1 {{the statement for 'atomic' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x', where x is an l-value expression with scalar type}}
+  ;
+
+  return update<int>();
+}
+
+template <class T>
 T mixed() {
   T a, b = T();
 // expected-error at +2 2 {{directive '#pragma omp atomic' cannot contain more than one 'read', 'write', 'update' or 'capture' clause}}
@@ -84,6 +121,10 @@ T mixed() {
 // expected-note at +1 2 {{'write' clause used here}}
 #pragma omp atomic write read
   a = b;
+// expected-error at +2 2 {{directive '#pragma omp atomic' cannot contain more than one 'read', 'write', 'update' or 'capture' clause}}
+// expected-note at +1 2 {{'update' clause used here}}
+#pragma omp atomic update read
+  a += b;
   return T();
 }
 
@@ -97,6 +138,10 @@ int mixed() {
 // expected-note at +1 {{'write' clause used here}}
 #pragma omp atomic write read
   a = b;
+// expected-error at +2 {{directive '#pragma omp atomic' cannot contain more than one 'read', 'write', 'update' or 'capture' clause}}
+// expected-note at +1 {{'write' clause used here}}
+#pragma omp atomic write update
+  a = b;
 // expected-note at +1 {{in instantiation of function template specialization 'mixed<int>' requested here}}
   return mixed<int>();
 }

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=213735&r1=213734&r2=213735&view=diff
==============================================================================
--- cfe/trunk/test/OpenMP/nesting_of_regions.cpp (original)
+++ cfe/trunk/test/OpenMP/nesting_of_regions.cpp Wed Jul 23 05:25:33 2014
@@ -1405,24 +1405,28 @@ void foo() {
 
 // ATOMIC DIRECTIVE
 #pragma omp atomic
+// expected-error at +1 {{the statement for 'atomic' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x', where x is an l-value expression with scalar type}}
   {
 #pragma omp for // expected-error {{OpenMP constructs may not be nested inside an atomic region}}
     for (int i = 0; i < 10; ++i)
       ;
   }
 #pragma omp atomic
+// expected-error at +1 {{the statement for 'atomic' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x', where x is an l-value expression with scalar type}}
   {
 #pragma omp simd // expected-error {{OpenMP constructs may not be nested inside an atomic region}}
     for (int i = 0; i < 10; ++i)
       ;
   }
 #pragma omp atomic
+// expected-error at +1 {{the statement for 'atomic' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x', where x is an l-value expression with scalar type}}
   {
 #pragma omp parallel // expected-error {{OpenMP constructs may not be nested inside an atomic region}}
     for (int i = 0; i < 10; ++i)
       ;
   }
 #pragma omp atomic
+// expected-error at +1 {{the statement for 'atomic' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x', where x is an l-value expression with scalar type}}
   {
 #pragma omp sections // expected-error {{OpenMP constructs may not be nested inside an atomic region}}
     {
@@ -1430,6 +1434,7 @@ void foo() {
     }
   }
 #pragma omp atomic
+// expected-error at +1 {{the statement for 'atomic' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x', where x is an l-value expression with scalar type}}
   {
 #pragma omp section // expected-error {{OpenMP constructs may not be nested inside an atomic region}}
     {
@@ -1437,6 +1442,7 @@ void foo() {
     }
   }
 #pragma omp atomic
+// expected-error at +1 {{the statement for 'atomic' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x', where x is an l-value expression with scalar type}}
   {
 #pragma omp single // expected-error {{OpenMP constructs may not be nested inside an atomic region}}
     {
@@ -1444,6 +1450,7 @@ void foo() {
     }
   }
 #pragma omp atomic
+// expected-error at +1 {{the statement for 'atomic' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x', where x is an l-value expression with scalar type}}
   {
 #pragma omp master // expected-error {{OpenMP constructs may not be nested inside an atomic region}}
     {
@@ -1451,6 +1458,7 @@ void foo() {
     }
   }
 #pragma omp atomic
+// expected-error at +1 {{the statement for 'atomic' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x', where x is an l-value expression with scalar type}}
   {
 #pragma omp critical // expected-error {{OpenMP constructs may not be nested inside an atomic region}}
     {
@@ -1458,12 +1466,14 @@ void foo() {
     }
   }
 #pragma omp atomic
+// expected-error at +1 {{the statement for 'atomic' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x', where x is an l-value expression with scalar type}}
   {
 #pragma omp parallel for // expected-error {{OpenMP constructs may not be nested inside an atomic region}}
     for (int i = 0; i < 10; ++i)
       ;
   }
 #pragma omp atomic
+// expected-error at +1 {{the statement for 'atomic' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x', where x is an l-value expression with scalar type}}
   {
 #pragma omp parallel sections // expected-error {{OpenMP constructs may not be nested inside an atomic region}}
     {
@@ -1471,6 +1481,7 @@ void foo() {
     }
   }
 #pragma omp atomic
+// expected-error at +1 {{the statement for 'atomic' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x', where x is an l-value expression with scalar type}}
   {
 #pragma omp task // expected-error {{OpenMP constructs may not be nested inside an atomic region}}
     {
@@ -1478,31 +1489,37 @@ void foo() {
     }
   }
 #pragma omp atomic
+// expected-error at +1 {{the statement for 'atomic' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x', where x is an l-value expression with scalar type}}
   {
 #pragma omp taskyield // expected-error {{OpenMP constructs may not be nested inside an atomic region}}
     bar();
   }
 #pragma omp atomic
+// expected-error at +1 {{the statement for 'atomic' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x', where x is an l-value expression with scalar type}}
   {
 #pragma omp barrier // expected-error {{OpenMP constructs may not be nested inside an atomic region}}
     bar();
   }
 #pragma omp atomic
+// expected-error at +1 {{the statement for 'atomic' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x', where x is an l-value expression with scalar type}}
   {
 #pragma omp taskwait // expected-error {{OpenMP constructs may not be nested inside an atomic region}}
     bar();
   }
 #pragma omp atomic
+// expected-error at +1 {{the statement for 'atomic' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x', where x is an l-value expression with scalar type}}
   {
 #pragma omp flush // expected-error {{OpenMP constructs may not be nested inside an atomic region}}
     bar();
   }
 #pragma omp atomic
+// expected-error at +1 {{the statement for 'atomic' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x', where x is an l-value expression with scalar type}}
   {
 #pragma omp ordered // expected-error {{OpenMP constructs may not be nested inside an atomic region}}
     bar();
   }
 #pragma omp atomic
+// expected-error at +1 {{the statement for 'atomic' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x', where x is an l-value expression with scalar type}}
   {
 #pragma omp atomic // expected-error {{OpenMP constructs may not be nested inside an atomic region}}
     ++a;
@@ -2746,24 +2763,28 @@ void foo() {
 
 // ATOMIC DIRECTIVE
 #pragma omp atomic
+// expected-error at +1 {{the statement for 'atomic' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x', where x is an l-value expression with scalar type}}
   {
 #pragma omp for // expected-error {{OpenMP constructs may not be nested inside an atomic region}}
     for (int i = 0; i < 10; ++i)
       ;
   }
 #pragma omp atomic
+// expected-error at +1 {{the statement for 'atomic' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x', where x is an l-value expression with scalar type}}
   {
 #pragma omp simd // expected-error {{OpenMP constructs may not be nested inside an atomic region}}
     for (int i = 0; i < 10; ++i)
       ;
   }
 #pragma omp atomic
+// expected-error at +1 {{the statement for 'atomic' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x', where x is an l-value expression with scalar type}}
   {
 #pragma omp parallel // expected-error {{OpenMP constructs may not be nested inside an atomic region}}
     for (int i = 0; i < 10; ++i)
       ;
   }
 #pragma omp atomic
+// expected-error at +1 {{the statement for 'atomic' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x', where x is an l-value expression with scalar type}}
   {
 #pragma omp sections // expected-error {{OpenMP constructs may not be nested inside an atomic region}}
     {
@@ -2771,6 +2792,7 @@ void foo() {
     }
   }
 #pragma omp atomic
+// expected-error at +1 {{the statement for 'atomic' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x', where x is an l-value expression with scalar type}}
   {
 #pragma omp section // expected-error {{OpenMP constructs may not be nested inside an atomic region}}
     {
@@ -2778,6 +2800,7 @@ void foo() {
     }
   }
 #pragma omp atomic
+// expected-error at +1 {{the statement for 'atomic' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x', where x is an l-value expression with scalar type}}
   {
 #pragma omp single // expected-error {{OpenMP constructs may not be nested inside an atomic region}}
     {
@@ -2785,6 +2808,7 @@ void foo() {
     }
   }
 #pragma omp atomic
+// expected-error at +1 {{the statement for 'atomic' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x', where x is an l-value expression with scalar type}}
   {
 #pragma omp master // expected-error {{OpenMP constructs may not be nested inside an atomic region}}
     {
@@ -2792,6 +2816,7 @@ void foo() {
     }
   }
 #pragma omp atomic
+// expected-error at +1 {{the statement for 'atomic' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x', where x is an l-value expression with scalar type}}
   {
 #pragma omp critical // expected-error {{OpenMP constructs may not be nested inside an atomic region}}
     {
@@ -2799,12 +2824,14 @@ void foo() {
     }
   }
 #pragma omp atomic
+// expected-error at +1 {{the statement for 'atomic' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x', where x is an l-value expression with scalar type}}
   {
 #pragma omp parallel for // expected-error {{OpenMP constructs may not be nested inside an atomic region}}
     for (int i = 0; i < 10; ++i)
       ;
   }
 #pragma omp atomic
+// expected-error at +1 {{the statement for 'atomic' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x', where x is an l-value expression with scalar type}}
   {
 #pragma omp parallel sections // expected-error {{OpenMP constructs may not be nested inside an atomic region}}
     {
@@ -2812,6 +2839,7 @@ void foo() {
     }
   }
 #pragma omp atomic
+// expected-error at +1 {{the statement for 'atomic' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x', where x is an l-value expression with scalar type}}
   {
 #pragma omp task // expected-error {{OpenMP constructs may not be nested inside an atomic region}}
     {
@@ -2819,31 +2847,37 @@ void foo() {
     }
   }
 #pragma omp atomic
+// expected-error at +1 {{the statement for 'atomic' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x', where x is an l-value expression with scalar type}}
   {
 #pragma omp taskyield // expected-error {{OpenMP constructs may not be nested inside an atomic region}}
     bar();
   }
 #pragma omp atomic
+// expected-error at +1 {{the statement for 'atomic' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x', where x is an l-value expression with scalar type}}
   {
 #pragma omp barrier // expected-error {{OpenMP constructs may not be nested inside an atomic region}}
     bar();
   }
 #pragma omp atomic
+// expected-error at +1 {{the statement for 'atomic' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x', where x is an l-value expression with scalar type}}
   {
 #pragma omp taskwait // expected-error {{OpenMP constructs may not be nested inside an atomic region}}
     bar();
   }
 #pragma omp atomic
+// expected-error at +1 {{the statement for 'atomic' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x', where x is an l-value expression with scalar type}}
   {
 #pragma omp flush // expected-error {{OpenMP constructs may not be nested inside an atomic region}}
     bar();
   }
 #pragma omp atomic
+// expected-error at +1 {{the statement for 'atomic' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x', where x is an l-value expression with scalar type}}
   {
 #pragma omp ordered // expected-error {{OpenMP constructs may not be nested inside an atomic region}}
     bar();
   }
 #pragma omp atomic
+// expected-error at +1 {{the statement for 'atomic' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x', where x is an l-value expression with scalar type}}
   {
 #pragma omp atomic // expected-error {{OpenMP constructs may not be nested inside an atomic region}}
     ++a;

Modified: cfe/trunk/tools/libclang/CIndex.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/tools/libclang/CIndex.cpp?rev=213735&r1=213734&r2=213735&view=diff
==============================================================================
--- cfe/trunk/tools/libclang/CIndex.cpp (original)
+++ cfe/trunk/tools/libclang/CIndex.cpp Wed Jul 23 05:25:33 2014
@@ -1985,6 +1985,8 @@ void OMPClauseEnqueue::VisitOMPReadClaus
 
 void OMPClauseEnqueue::VisitOMPWriteClause(const OMPWriteClause *) {}
 
+void OMPClauseEnqueue::VisitOMPUpdateClause(const OMPUpdateClause *) {}
+
 template<typename T>
 void OMPClauseEnqueue::VisitOMPClauseList(T *Node) {
   for (const auto *I : Node->varlists())





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