2015-12-05 17:27, Mike Sowka: > Thanks for the pointers Thomas. Here is a signed-off patch > re-submission with some explanation, to the best of my experience.
Thanks, it is really well detailed. It would have been perfect with -v2 --in-reply-to :) > Irrelevant of the target, the preprocessor #ifdef SSE2 for the > grinder_pipe_exists function is inadequate since the __mm_testz_si128 > function requires SSE4.1, PTEST instruction described in > https://en.wikipedia.org/wiki/SSE4#SSE4.1 (I do no have better spec > reference). I have bumped the preprocessor #ifdef to require SSE4. > > The Atom N2600 does not have SSE4, http://ark.intel.com/products/58916, > and so I had trouble building rte_sched with optimized version of > grinder_pipe_exists, with following: > error: inlining failed in call to always_inline _mm_testz_si128?: > target specific option mismatch > > GCC 4.9 correctly identifies my target as not having SSE4, and with > provided patch builds the non-optimized version of grinder_pipe_exists. > > > Signed-off-by: Mike Sowka <msowka at gmail.com> Applied, thanks
