On Fri, 5 Aug 2011, Ramana Radhakrishnan wrote: > I've had a couple of conversations about what the intrinsics > behaviour should in such cases with folks. Should we try to match vabs > (vsub) even for intrinsics and generate a vabd or desist from doing > this and generate only what was asked for. My personal preference is > the former but it would be interesting to see what others think .
Intrinsics should generally be considered to have C-level semantics (that may happen to be the same as those of a particular machine instruction), rather than the semantics that they must generate a particular instruction. I.e., the former. -- Joseph S. Myers jos...@codesourcery.com