Mark by_ref mem_ref in build_receiver_ref as non-trapping

2015-11-21  Tom de Vries  <tom@codesourcery.com>

	* omp-low.c (build_receiver_ref): Mark by_ref mem_ref as non-trapping.

---
 gcc/omp-low.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/gcc/omp-low.c b/gcc/omp-low.c
index 830db75..78f2853 100644
--- a/gcc/omp-low.c
+++ b/gcc/omp-low.c
@@ -1249,7 +1249,10 @@ build_receiver_ref (tree var, bool by_ref, omp_context *ctx)
   TREE_THIS_NOTRAP (x) = 1;
   x = omp_build_component_ref (x, field);
   if (by_ref)
-    x = build_simple_mem_ref (x);
+    {
+      x = build_simple_mem_ref (x);
+      TREE_THIS_NOTRAP (x) = 1;
+    }
 
   return x;
 }