Roland Scheidegger <srol...@vmware.com> writes: > Hi, > > the address reg in tgsi is quite a nuisance. glsl-to-tgsi code assumes > that indirections can only be done through the address reg and has quite > some extra code to deal with this. Even though hardware and apis which > worked like that are definitely old by now. > Thus, I'm proposing the address reg be nuked. I am however not quite > sure what the implications for drivers are, other than I'm certain > llvmpipe can handle that already. > For that reason, I suspect at least initially a new cap bit would be > required so glsl-to-tgsi would skip the extra code. I tend to think > longer term it would be great if it could be nuked completely, I am > however not sure if that is easily done with drivers for old hw (such as > r300) - I guess if necessary we could keep operations such as ARL (or > even ARR though clearly not UARL!) and just define them to be usable > with temp regs.
Yes, please, let's kill ARL.
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