On Thu, 21 Aug 2014, Richard Earnshaw wrote: > On 19/08/14 15:24, Kito Cheng wrote: > > Hi Richard: > >> Hmm, I'm not sure about this. It might not be used at present, but on: > >> AArch64, with more call-clobbered registers than call-saved registers, I > >> would expect this ought to be a win. The fact that it isn't on today > >> may say more about the way it works than the concept that it's the wrong > >> thing to do in principle. > > > > In my view, calculate cost/profit should be done by register allocator > > instead > > of a target hook/marco is more reasonable since register allocator can > > have more globe view to it, and IRA do it now. > > > > And as Joseph say, no code calling it, so I think it's time to remove it. > > thanks for your comment :) > > Objection withdrawn.
Thanks. The patch is OK. -- Joseph S. Myers jos...@codesourcery.com
