> > Hi, > > On 9/16/06, Dorit Nuzman <[EMAIL PROTECTED]> wrote: . > > >so the stuff in tree-ssa-forwprop:eliminate_unnecessary_casts in > > autovect-branch is supposed to go under this tree-combiner pass as well, or > >do you plan to merge it to mainline some time? > > > tree-ssa-forwprop:eliminate_unncessary_casts approach is > considered not appropriate for mainline (because > tree-combiner will take care of it.) so I do not plan to merge > it to mainline. I discussed this with tree-ssa folks when we > were chasing gzip performance. They preferred to wait for > tree-combiner instead of gaining gzip performance improvement > using this short term approach.
The Tree combiner is semi dead as I have other work to do now. But I hear PRE is able to do some stuff like this (and already does for some simple testcases). -- Pinski
