[Bug tree-optimization/114999] A few missing optimizations due to `a - b` and `b - a` not being detected as negatives of each other

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114999

--- Comment #11 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Jennifer Schmitz from comment #10)

See PR 113265 for a start of a patch. I didn't have time to finish it up yet.