[Bug tree-optimization/90447] Missed opportunities to use adc (worse when -1 is involved)

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90447

--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I suspect it was r15-5950.