[Bug tree-optimization/121762] pass_fold_builtins and pass_optimize_widening_mul and pass_gimple_isel should be merged or moved other places

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121762

--- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
>BUILT_IN_CONSTANT_P -> forwprop with late set (zero)

I have a patch in testing for this. It moves it to gimple_fold instead but
still with late set.