Andrew Pinski wrote:
On 8/15/07, Zack Weinberg <[EMAIL PROTECTED]> wrote:Is popcount really slow on PowerPC? (Compared to clz?)popcount is really popcount in bytes and then you do a multiple to get the real popcount. This is why it is slower than count leading zeros. Also popcount does not exist in most powerpc's while count leading zeros exist in all.
Makes sense. I don't suppose I could persuade you to teach rs6000 RTX_COSTS about clz and popcount...?
zw
