On Mon, 18 Aug 2014, Richard Earnshaw wrote: > 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.
Nothing uses it - not just no targets defining it, but no code calling it. If you have a use in future for a target hook doing something suggested by the name of this macro, by all means add one - but there's no point at all in keeping the macro until then. (It should of course be poisoned in system.h when removing it, as standard when removing target macros.) -- Joseph S. Myers jos...@codesourcery.com
