mmx/sse builtins

mmx/sse builtins

[Matthieu Godet]

Hi,

I'm currently trying to use mmx/sse builtins with gcc version 4.1.2.

But I realised that the function __builtin_ia32_loadaps wasn't available any 
more, as a few other functions.

With gcc version 3.4.2, __builtin_ia32_loadaps is available but the version 
seems to have quite a lot of bugs with the builtins in general.

Is there a "good" version I could use ? Are there some people working on the 
mmx/sse builtins ?

Thanks,
Matthieu

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Re: mmx/sse builtins

[Brian Budge]

A most excellent question.  I'd like to add my own on top of that:  It
appears that with 4.1.x, the xmmintrin.h, pmmintrin.h, etc... are
missing.  Will they be back?

  Brian

On 6/28/06, Matthieu Godet <matthieu.godet.work@hotmail.com> wrote:
>
> Hi,
>
> I'm currently trying to use mmx/sse builtins with gcc version 4.1.2.
>
> But I realised that the function __builtin_ia32_loadaps wasn't available any
> more, as a few other functions.
>
> With gcc version 3.4.2, __builtin_ia32_loadaps is available but the version
> seems to have quite a lot of bugs with the builtins in general.
>
> Is there a "good" version I could use ? Are there some people working on the
> mmx/sse builtins ?
>
> Thanks,
> Matthieu
>
> _________________________________________________________________
> Express yourself instantly with MSN Messenger! Download today it's FREE!
> http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/
>
>

Re: mmx/sse builtins

[Tim Prince]

Brian Budge wrote:
> A most excellent question.  I'd like to add my own on top of that:  It
> appears that with 4.1.x, the xmmintrin.h, pmmintrin.h, etc... are
> missing.  Will they be back?
> 

If you mean you've noticed the tendency of gcc programmers to use 
alternates for code which requires data types from those headers when 
compiled with commercial compilers, I doubt the trend will reverse.
As those headers appear in my gcc-4.2 installations, I don't think you 
mean you suspect they will be removed from gcc.

Re: mmx/sse builtins

[Brian Budge]

err... oops.  I guess my slocate database was out of date, they're still there.

Sorry for the noise.

Anyway, Matthieu, since the *mmintrin* files seem to be sticking
around, I'd suggest you use those instead of the __builtins for
SSE/MMX.

  Brian

On 6/28/06, Tim Prince <timothyprince@sbcglobal.net> wrote:
> Brian Budge wrote:
> > A most excellent question.  I'd like to add my own on top of that:  It
> > appears that with 4.1.x, the xmmintrin.h, pmmintrin.h, etc... are
> > missing.  Will they be back?
> >
>
> If you mean you've noticed the tendency of gcc programmers to use
> alternates for code which requires data types from those headers when
> compiled with commercial compilers, I doubt the trend will reverse.
> As those headers appear in my gcc-4.2 installations, I don't think you
> mean you suspect they will be removed from gcc.
>

Re: mmx/sse builtins

[Ian Lance Taylor]

"Brian Budge" <brian.budge@gmail.com> writes:

> Anyway, Matthieu, since the *mmintrin* files seem to be sticking
> around, I'd suggest you use those instead of the __builtins for
> SSE/MMX.

Yes, the plan of record is to support the same set of builtins as the
Intel compiler, which means mmintrin.h, etc.  There is some
documentation available on the Intel site; there is currently,
unfortunately, no correct documentation in the gcc manual.

Ian