gcc 4.4.1/linux 64bit: code crashes with -O3, works with -O2

[Andrew Pinski]

On Mon, Feb 22, 2010 at 1:06 PM, Janis Johnson <janis187@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