From: Stuart Brady <sdbrady@xxxxxxxxxxxx> Date: Sun, 29 Jan 2006 07:12:42 +0000 > There are versions of hweight*() for sparc64 which use POPC when > ULTRA_HAS_POPULATION_COUNT is defined, but AFAICS, it's never defined. That's right, the problem here is that no chips actually implement the instruction in hardware, it is software emulated, ie. useless :-)
