> > > But yes, the VIEW_CONVERT "stripping" is a bit fragile and I don't > > > remember what exactly we gain from it (when not done on registers). > > > > I guess gain is really limited to Ada - there are very few cases we do VCE > > otherwise. (I think we could do more of them). We can make > > useless_type_conversion NOP/CONVERT only. That in fact makes quite a sense > > because those are types with gimple operations on it. Perhaps also VCE on > > vectors, but not VCE in general. > > FWIW that's fine with me. Yes, Ada tends to generate a lot of VCEs but I try > to get rid of the useless ones as much as I can so assistance from the middle- > end is not really required. I'll test Richard's patch and install it if the > outcome is positive (unless you want to do the vector thing right away).
Lets go with this patch and hopefully stabilize the tree. I don't think the vector conversions represent an important case. Honza > > -- > Eric Botcazou
