[Bug middle-end/81207] [7/8 Regression] tree check fail in simplify_builtin_call

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81207

--- Comment #2 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Apparently in the IR we have
# VUSE <.MEM>
_13 = __builtin_strchr (_12, 39);

(gdb) p vuse
$1 = <var_decl 0x7ffff0061090 .MEM>

and SSA_NAME_DEF_STMT crashes on that.