1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/expr.c b/gcc/expr.c
index 5ad38cd..e96fe58 100644
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -1020,7 +1020,8 @@ convert_move (to, from, unsignedp)
 	    if (((can_extend_p (to_mode, intermediate, unsignedp)
 		  != CODE_FOR_nothing)
 		 || (GET_MODE_SIZE (to_mode) < GET_MODE_SIZE (intermediate)
-		     && TRULY_NOOP_TRUNCATION (to_mode, intermediate)))
+		     && TRULY_NOOP_TRUNCATION (GET_MODE_BITSIZE (to_mode),
+					       GET_MODE_BITSIZE (intermediate))))
 		&& (can_extend_p (intermediate, from_mode, unsignedp)
 		    != CODE_FOR_nothing))
 	      {