> > Is popcount really slow on PowerPC? (Compared to clz?) Ideally one > would choose between the two expansions based on RTL costs, but the only > architectures it matters for are i386 and powerpc, and neither of them > define the cost of either clz or popcount.
Of course adding a popcount/clz cost into i386 cost tables is easy and probably most correct thing to do :) Honza > > zw
