On 06/14/2018 02:32 PM, David Malcolm wrote: > The idea is to later use these macros to mark the > if (dump_enabled_p ()) > parts of the compiler as cold, in the hope of helping non-PGO builds > of gcc. > > I haven't measured it yet, though. > > gcc/ChangeLog: > * system.h (GCC_LIKELY, GCC_UNLIKELY): New macros, adapted from > libgfortran.h. ISTM if we're going to bother with this stuff that we should try to be consistent between glibc and gcc. Anything else seems like utter madness to me.
Jeff
