[Bug target/125907] Missed Optimization (x86 bit-test `bt`)

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125907

--- Comment #1 from Drea Pinski <pinskia at gcc dot gnu.org> ---
Created attachment 64806
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=64806&action=edit
Full testcase