1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/expr.c b/gcc/expr.c
index 4815c88..aeff2ca 100644
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -2131,7 +2131,7 @@ emit_group_store (rtx orig_dst, rtx src, tree type ATTRIBUTE_UNUSED, int ssize)
 	  /* Make sure not to write past the end of the struct.  */
 	  store_bit_field (dest,
 			   adj_bytelen * BITS_PER_UNIT, bytepos * BITS_PER_UNIT,
-			   bytepos * BITS_PER_UNIT, ssize * BITS_PER_UNIT,
+			   bytepos * BITS_PER_UNIT, ssize * BITS_PER_UNIT - 1,
 			   VOIDmode, tmps[i]);
 	}