[Bug tree-optimization/125652] [14/15/16/17 Regression] wrong code at -O3 on x86_64-linux-gnu

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125652

--- Comment #1 from Drea Pinski <pinskia at gcc dot gnu.org> ---
Created attachment 64656
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=64656&action=edit
testcase that fails all the way back to 14.1.0