This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
Re: SSE arguments alignment
- From: Jan Hubicka <jh at suse dot cz>
- To: Ian Ollmann <iano at cco dot caltech dot edu>
- Cc: Richard Henderson <rth at redhat dot com>, Jan Hubicka <jh at suse dot cz>,hubicka at gcc dot gnu dot org, gcc-bugs at gcc dot gnu dot org, gcc-prs at gcc dot gnu dot org,gcc-gnats at gcc dot gnu dot org, bernds at redhat dot com
- Date: Fri, 11 Oct 2002 21:45:19 +0200
- Subject: Re: SSE arguments alignment
- References: <20021011163421.GA2202@redhat.com> <Pine.SGI.4.40.0210111133310.15767-100000@helix2.caltech.edu>
Ian,
I've reopened the bugreport, hope Bernd will have time to take a look at
this soon.
> On Fri, 11 Oct 2002, Richard Henderson wrote:
>
> > On Fri, Oct 11, 2002 at 02:48:15PM +0200, Jan Hubicka wrote:
> > > Yes, that is the bug - outgoing operands are always aligned to 32bit
> > > only as ia32 ABI mandates. I am not quite sure how this should be
> > > hanled, as we need to increase the alignment of only SSE operands
> > > (probably structure containing SSE operand too, but structure containing
> > > other 128bit or 64bit aligned field should not get aligned).
> >
> > Err, this was already handled, I thought. Apparently not.
> > Bernd, did that stuff get left on a branch somewhere?
>
> Great! What about support for MOVDQA, MOVDQU, PSRLDQ and PSLLDQ? As far as
> I can tell, these seem to be missing from both the GCC __builtin_ia32_*
> set of intrinsics and also xmmintrin.h.
I am running out of time today. Can you please put this into another
bugerport and assign it to me so it don't get lost?
Honza
>
> Thanks!
>
> Ian
>
> ---------------------------------------------------
> Ian Ollmann, Ph.D. iano@cco.caltech.edu
> ---------------------------------------------------