https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96789

--- Comment #9 from Kewen Lin <linkw at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #8)
> (In reply to Kewen Lin from comment #7)
> > Two questions in mind, need to dig into it further:
> >   1) from the assembly of scalar/vector code, I don't see any stores needed
> > into temp array d (array diff in pixel_sub_wxh), but when modeling we
> > consider the stores.
> 
> Because when modeling they are still there.  There's no good way around this.
> 

I noticed the stores get eliminated during FRE.  Can we consider running FRE
once just before SLP? a bad idea due to compilation time?

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