Re: lvx versus lxvd2x on power8

2017-04-11 Thread Bill Schmidt
Hi Igor, (Apologies for not threading this, I haven't received my digest for this list yet) You wrote: >I recently checked this old discussion about when/why to use lxvd2x instead of >lvsl/lvx/vperm/lvx to load elements from memory to vector: >https://gcc.gnu.org/ml/gcc/2015-03/msg00135.ht

lvx versus lxvd2x on power8

2017-04-10 Thread Igor Henrique Soares Nunes
Hi all, I recently checked this old discussion about when/why to use lxvd2x instead of lvsl/lvx/vperm/lvx to load elements from memory to vector: https://gcc.gnu.org/ml/gcc/2015-03/msg00135.html I had the same doubt and I was also concerned how performance influences on these approaches. So th