[Bug tree-optimization/109274] [13 Regression] ice in in_chain_p, at gimple-range-gori.cc:119 starting with r13-6787-g0963cb5fde158cce986

[rguenth at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109274

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
(gdb) p *vrel_ptr
$4 = {related = VREL_VARYING, name1 = <tree 0x0>, name2 = <tree 0x0>}

and we pass on NULL here:

666           if (op1_in_chain)
667             res = in_chain_p (vrel_ptr->op1 (), op1)
668                   && in_chain_p (vrel_ptr->op2 (), op1);

very likely a duplicate.