https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64055
--- Comment #6 from Ilya Enkovich <enkovich.gnu at gmail dot com> ---
TREE_INT_CST_LOW (maxval) assumes integer constant anyway. Therefore we may
use simpler check. It fixes gnat.dg/derived_aggregate.adb.
diff --git a/gcc/tree-chkp.c b/gcc/tree-chkp.c
index 0fb78cc..84886da 100644
--- a/gcc/tree-chkp.c
+++ b/gcc/tree-chkp.c
@@ -1568,7 +1568,9 @@ chkp_find_bound_slots_1 (const_tree type, bitmap
have_bound,
HOST_WIDE_INT esize = TREE_INT_CST_LOW (TYPE_SIZE (etype));
unsigned HOST_WIDE_INT cur;
- if (!maxval || integer_minus_onep (maxval))
+ if (!maxval
+ || TREE_CODE (maxval) != INTEGER_CST
+ || integer_minus_onep (maxval))
return;
for (cur = 0; cur <= TREE_INT_CST_LOW (maxval); cur++)
