On Mon, Feb 22, 2010 at 1:06 PM, Janis Johnson <janis...@us.ibm.com> wrote: > If you can reproduce the problem with a small, self-contained test then > please file a bug report. It might be possible to issue a warning or > to detect that the loop should not be vectorized. If not, maybe the > compiler should disable vectorization for -fno-strict-aliasing.
It is not an aliasing issue but an alignment issue. Anyways this is most likely the same as http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43009 . Thanks, Andrew Pinski