https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111655
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
The match pattern which causes the issue:
(simplify
/* signbit(x) -> 0 if x is nonnegative. */
(SIGNBIT tree_expr_nonnegative_p@0)
{ integer_zero_node; })
