[OPENMP] Initial support for 'depend' clause (4.0).

Parsing and sema analysis (without support for array sections in arguments) for 'depend' clause (used in 'task' directive, OpenMP 4.0).

llvm-svn: 240409

1 files changed, 29 insertions, 0 deletions

diff --git a/clang/lib/Sema/TreeTransform.h b/clang/lib/Sema/TreeTransform.h
index 322cb6ccb58..996dd2b0783 100644
--- a/clang/lib/Sema/TreeTransform.h
+++ b/clang/lib/Sema/TreeTransform.h
@@ -1551,6 +1551,19 @@ public:
                                             EndLoc);
   }
 
+  /// \brief Build a new OpenMP 'depend' pseudo clause.
+  ///
+  /// By default, performs semantic analysis to build the new OpenMP clause.
+  /// Subclasses may override this routine to provide different behavior.
+  OMPClause *
+  RebuildOMPDependClause(OpenMPDependClauseKind DepKind, SourceLocation DepLoc,
+                         SourceLocation ColonLoc, ArrayRef<Expr *> VarList,
+                         SourceLocation StartLoc, SourceLocation LParenLoc,
+                         SourceLocation EndLoc) {
+    return getSema().ActOnOpenMPDependClause(DepKind, DepLoc, ColonLoc, VarList,
+                                             StartLoc, LParenLoc, EndLoc);
+  }
+
   /// \brief Rebuild the operand to an Objective-C \@synchronized statement.
   ///
   /// By default, performs semantic analysis to build the new statement.
@@ -7255,6 +7268,22 @@ OMPClause *TreeTransform<Derived>::TransformOMPFlushClause(OMPFlushClause *C) {
                                             C->getLParenLoc(), C->getLocEnd());
 }
 
+template <typename Derived>
+OMPClause *
+TreeTransform<Derived>::TransformOMPDependClause(OMPDependClause *C) {
+  llvm::SmallVector<Expr *, 16> Vars;
+  Vars.reserve(C->varlist_size());
+  for (auto *VE : C->varlists()) {
+    ExprResult EVar = getDerived().TransformExpr(cast<Expr>(VE));
+    if (EVar.isInvalid())
+      return nullptr;
+    Vars.push_back(EVar.get());
+  }
+  return getDerived().RebuildOMPDependClause(
+      C->getDependencyKind(), C->getDependencyLoc(), C->getColonLoc(), Vars,
+      C->getLocStart(), C->getLParenLoc(), C->getLocEnd());
+}
+
 //===----------------------------------------------------------------------===//
 // Expression transformation
 //===----------------------------------------------------------------------===//