[Bug tree-optimization/126601] [13/14/15/16/17 Regression] ICE in match_arith_overflow with widen-mul since r11-6580

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126601

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Well, without checking it is a buffer overflow...