1 files changed, 4 insertions, 1 deletions
diff --git a/gcc/expr.c b/gcc/expr.c
index c013785..2f58cd2 100644
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -4643,7 +4643,10 @@ store_constructor (tree exp, rtx target, int cleared, HOST_WIDE_INT size)
 				       highest_pow2_factor (offset));
 	    }
 
-	  if (TREE_READONLY (field))
+	  /* If the constructor has been cleared, setting RTX_UNCHANGING_P
+	     on the MEM might lead to scheduling the clearing after the
+	     store.  */
+	  if (TREE_READONLY (field) && !cleared)
 	    {
 	      if (GET_CODE (to_rtx) == MEM)
 		to_rtx = copy_rtx (to_rtx);