Hi, On Sat, Sep 02, 2017 at 11:55:34AM -0400, Jeffrey Walton wrote: > Please forgive my ignorance. I'm trying to determine if GCC supports > Power8 extensions like vpmsum. Search is returning GCC docs as the top > hits at https://www.google.com/search?q=gcc+altivec+vpmsum. > > The problem is, none of the results include vpmsum. I'm not sure > what's broken with Google search. Maybe I used the wrong finger to > press enter. > > Does GCC support the Power8 extensions like vpmsum? Yes, since GCC 6 I believe. vec_pmsum_be is the portable intrinsic, and __builtin_crypto_vpmsum* are GCC-specific. Segher
