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Re: Missing SSE Intrinsics?
- From: Ian Lance Taylor <iant at google dot com>
- To: David Greene <dag at cray dot com>
- Cc: gcc-help at gcc dot gnu dot org
- Date: Fri, 09 Oct 2009 18:04:57 -0700
- Subject: Re: Missing SSE Intrinsics?
- References: <200910091621.18748.dag@cray.com>
David Greene <dag@cray.com> writes:
> The X86 SSE intrinsics are documented here:
>
> http://gcc.gnu.org/onlinedocs/gcc-4.4.1/gcc/X86-Built_002din-Functions.html#X86-Built_002din-Functions
>
> In particular, this list includes __builtin_ia32_movddup.
...
> I found this message that indicates it's gone:
>
> http://gcc.gnu.org/ml/gcc-help/2005-12/msg00148.html
>
> So is it gone?
Yes.
> If so, why is it still documented?
It's a bug.
> And where are the xmmintrinsics documented?
On Intel's web site. gcc implements the intrinsics that Intel defined
for SSE and friends.
Ian