[OpenMP] Parsing and sema support for target update directive

Summary:
This patch is to add parsing and sema support for `target update` directive. Support for the `to` and `from` clauses will be added by a different patch.  This patch also adds support for other clauses that are already implemented upstream and apply to `target update`, e.g. `device` and `if`.

This patch is based on the original post by Kelvin Li.

Reviewers: hfinkel, carlo.bertolli, kkwli0, arpith-jacob, ABataev

Subscribers: caomhin, cfe-commits

Differential Revision: http://reviews.llvm.org/D15944

llvm-svn: 270878

1 files changed, 1 insertions, 0 deletions

diff --git a/clang/lib/CodeGen/CodeGenFunction.h b/clang/lib/CodeGen/CodeGenFunction.h
index 9f0fdd3f1e8..478093aa0aa 100644
--- a/clang/lib/CodeGen/CodeGenFunction.h
+++ b/clang/lib/CodeGen/CodeGenFunction.h
@@ -2380,6 +2380,7 @@ public:
   void EmitOMPTargetDataDirective(const OMPTargetDataDirective &S);
   void EmitOMPTargetEnterDataDirective(const OMPTargetEnterDataDirective &S);
   void EmitOMPTargetExitDataDirective(const OMPTargetExitDataDirective &S);
+  void EmitOMPTargetUpdateDirective(const OMPTargetUpdateDirective &S);
   void EmitOMPTargetParallelDirective(const OMPTargetParallelDirective &S);
   void
   EmitOMPTargetParallelForDirective(const OMPTargetParallelForDirective &S);