<div dir="ltr">I'm wondering if it makes sense to instead supply a bc math library.  I would think it would be easier to maintain and debug, and should still give you all of the benefits.  You could just link with it early in the optimization pipeline to ensure inlining.  This may also make it easier to maintain SIMD functions for multiple backends.</div>
<div class="gmail_extra"><br><br><div class="gmail_quote">On Sun, Jan 27, 2013 at 8:49 AM, Hal Finkel <span dir="ltr"><<a href="mailto:hfinkel@anl.gov" target="_blank">hfinkel@anl.gov</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div class="HOEnZb"><div class="h5">----- Original Message -----<br>
> From: "Dimitri Tcaciuc" <<a href="mailto:dtcaciuc@gmail.com">dtcaciuc@gmail.com</a>><br>
> To: <a href="mailto:llvmdev@cs.uiuc.edu">llvmdev@cs.uiuc.edu</a><br>
> Sent: Sunday, January 27, 2013 3:42:42 AM<br>
> Subject: [LLVMdev] SIMD trigonometry/logarithms?<br>
><br>
><br>
><br>
> Hi everyone,<br>
><br>
><br>
> I was looking at loop vectorizer code and wondered if there was any<br>
> current or planned effort to introduce SIMD implementations of<br>
> sin/cos/exp/log intrinsics (in particular for x86-64 backend)?<br>
<br>
</div></div>Ralf Karrenberg had implemented some of these as part of his whole-function vectorization project:<br>
<a href="https://github.com/karrenberg/wfv/blob/master/src/utils/nativeSSEMathFunctions.hpp" target="_blank">https://github.com/karrenberg/wfv/blob/master/src/utils/nativeSSEMathFunctions.hpp</a><br>
<a href="https://github.com/karrenberg/wfv/blob/master/src/utils/nativeAVXMathFunctions.hpp" target="_blank">https://github.com/karrenberg/wfv/blob/master/src/utils/nativeAVXMathFunctions.hpp</a><br>
<br>
Opinions on pulling these into the X86 backend?<br>
<br>
 -Hal<br>
<br>
><br>
><br>
> Cheers,<br>
><br>
><br>
><br>
><br>
> Dimitri.<br>
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><br>
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</blockquote></div><br><br clear="all"><div><br></div>-- <br><br><div>Thanks,</div><div><br></div><div>Justin Holewinski</div>
</div>