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From: Paolo Bonzini <bonzini@gnu.org>
To: DJ Delorie <dj@redhat.com>
Cc: Andrew Pinski <pinskia@gmail.com>, gcc@gcc.gnu.org
Subject: Re: opaque vector types?
Date: Wed, 06 May 2009 09:08:00 -0000	[thread overview]
Message-ID: <4A01537D.5030405@gnu.org> (raw)
In-Reply-To: <xnmy9qvj51.fsf@greed.delorie.com>

DJ Delorie wrote:
> Andrew Pinski <pinskia@gmail.com> writes:
>> You could do what the rs6000 back-end does for the altivec builtins
>> and resolve them while the parser is run (the SPU back-end does the
>> same thing too).  Yes there are opaque vector types, you just use
>> build_opaque_vector_type instead of build_vector_type.
> 
> Thanks, I'll look at those.  Any way to prototype such functions in C ?

If the opaque vector type is exported as say __v4si_opaque__ that would
be simply

extern __v4si_opaque__ my_and (__v4si_opaque__, __v4si_opaque__);

Opaque vector types are not available via attributes, but that could be
easily added.

Paolo

  reply	other threads:[~2009-05-06  9:08 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-05-06  6:04 DJ Delorie
2009-05-06  6:11 ` Andrew Pinski
2009-05-06  6:29   ` DJ Delorie
2009-05-06  9:08     ` Paolo Bonzini [this message]
2009-05-08 21:05     ` Michael Meissner
2009-06-10 13:00 ` Paul Brook

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