diff options
Diffstat (limited to 'gcc/tree-vrp.c')
| -rw-r--r-- | gcc/tree-vrp.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/gcc/tree-vrp.c b/gcc/tree-vrp.c index b8b6967..da11dfb 100644 --- a/gcc/tree-vrp.c +++ b/gcc/tree-vrp.c @@ -4150,8 +4150,11 @@ vrp_prop::check_array_ref (location_t location, tree ref, up_bound_p1 = int_const_binop (TRUNC_DIV_EXPR, maxbound, eltsize); - up_bound = int_const_binop (MINUS_EXPR, up_bound_p1, - build_int_cst (ptrdiff_type_node, 1)); + if (up_bound_p1 != NULL_TREE) + up_bound = int_const_binop (MINUS_EXPR, up_bound_p1, + build_int_cst (ptrdiff_type_node, 1)); + else + up_bound = NULL_TREE; } } else |