Re: Using POPCNT and other advanced bit manipulation instructions

>>>>> "Andres" == Andres Freund <andres(at)anarazel(dot)de> writes:

>> It's likely to be hard to tell, given the amount of pink from the
>> Ryu patch. If Andrew is not planning to clean that up PDQ,

Besides crake (x-version), fulmar (icc) and lorikeet (cygwin), I hope
the rest of the known failures should pass on the next cycle; the
mac/ppc failures are because we redefine "bool" in a way that broke the
upstream code's c99 assumptions, and the rest are numerical instability
in ts_rank.

>> I'd suggest reverting that patch pending having some repairs for it.

Andres> I'd assume that breaking bit counting would cause distinct
Andres> enough damage (compile time or crashes). That's not to say that
Andres> reverting ryu shouldn't be considered (although I'm not that
Andres> bothered by cross version, ia64 and cygwin failures, especially
Andres> because the latter two might be hard to come by outside the
Andres> bf).

IA64 is working fine as far as I can see (specifically, anole is
passing); it's ICC on x86_64 that broke (fulmar).

--
Andrew (irc:RhodiumToad)