1 files changed, 1 insertions, 0 deletions
diff --git a/gcc/expr.c b/gcc/expr.c
index 04ef5ad..86dc1b6 100644
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -5459,6 +5459,7 @@ expand_assignment (tree to, tree from, bool nontemporal)
 	      /* If to_rtx is a promoted subreg, we need to zero or sign
 		 extend the value afterwards.  */
 	      if (TREE_CODE (to) == MEM_REF
+		  && TYPE_MODE (TREE_TYPE (from)) != BLKmode
 		  && !REF_REVERSE_STORAGE_ORDER (to)
 		  && known_eq (bitpos, 0)
 		  && known_eq (bitsize, GET_MODE_BITSIZE (GET_MODE (to_rtx))))