From owner-freebsd-performance@FreeBSD.ORG  Wed Jun 15 19:08:30 2011
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Date: Wed, 15 Jun 2011 19:36:54 +0100
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From: Doug Rabson <dfr@rabson.org>
To: "Hartmann, O." <ohartman@zedat.fu-berlin.de>
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Cc: "freebsd-performance@freebsd.org" <freebsd-performance@freebsd.org>,
	FreeBSD Current <freebsd-current@freebsd.org>
Subject: Re: FreeBSD 9.0-CUR/amd64 CLANG: howto use gcc __builtin_ia32?
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You could try using the standard <xmmintrin.h> header - that has inline
functions which should cover all the SSE instructions.

On 12 June 2011 17:43, Hartmann, O. <ohartman@zedat.fu-berlin.de> wrote:

> I use some numerical code utilizing the SIMD units of modern X86
> architectures. Code compiles well using gcc/gcc46,
> but clang does not know about the __builtin_ia32_xxxxx() statements. How to
> treat those in clang and how to make
> C code compiling with clang utilizing those __builtin_ia32 statements?
>
> Thanks,
> Oliver
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