Hi Everyone, 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? Thanks in advance, Jeff