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Re: [PATCH] gcc.dg/vect/vect-77a.c: xfail for lp64






Richard Henderson <rth@redhat.com> wrote on 22/12/2004 21:28:40:

> On Wed, Dec 22, 2004 at 05:17:18PM +0200, Dorit Naishlos wrote:
> > actually we would still fail to vectorize for sparc and alpha because
of
> > lack of alignment support.
>
> No, alpha fails because of lp64-ness.  We've got misalignment support.
>
> > The reason this testcase gets vectorized on
> > i?86-*-* and x86_64-*-* is that this test uses -mmmx for which
misaligned
> > accesses are modeled (as opposed to -msse*).
>
> Actually, it fails on x86_64 becuase 64-bit implies sse, which we're
> not turning off.

oh.
sorry for the wrong diagnosis...

> And I have a patch to implement misalignment support
> for sse

!!

> (which I'm not totally happy with), and then x86_64 fails
> because of lp64-ness.
>
>
>
> r~

dorit


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