On Mon, 2011-03-14 at 17:55 +0000, Andrew Stubbs wrote: > On 14/03/11 17:10, Richard Earnshaw wrote: > > Finally, alternatives from an insn are normally selected left-to-right > > from those available in a pattern, all other things being equal. So > > really the A8-only alternative should come after the core registers > > alternatives if its less preferable. > > OK, I can do that, but I'm not exactly sure how far to the right you > want them moved? > > Do you want the onlya8 alternatives moved the the right of all > alternatives without a '?' modifier (so, changing only iordi3_neon and > anddi3_neon)? Or do you mean moving it all the way to the right hand end? > > Or something completely different? > > Andrew > So taking the current adddi3 pattern we have alternatives (in order of preference): not-a8, only-a8, core-regs, core-regs.
I think the order should be: not-a8, core-regs, core-regs, only-a8. R.
