[Bug tree-optimization/112324] phiopt fail to recog if (b < 0) max = MAX(-b, max); else max = MAX (b, max) into max = MAX (ABS(b), max)

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112324

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Note a simple patch to improve phiopt here does not improve the original code
in openjpeg.

The reason why is due to the code in phiopt here is only operates on the case
where the phi would be the only one. In that case we also have a vop phi which
changes which causes the code not to be done.