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Re: Performance question concerning chicken flonum vs "foreign flonum"

From: Christian Himpe
Subject: Re: Performance question concerning chicken flonum vs "foreign flonum"
Date: Sun, 07 Nov 2021 14:50:22 +0100 (CET)

Dear Felix,

Thank you for the patch. I built the current git head with your patch.
After importing chicken.flonum, I get the following error when calling fp*+:

#;2> (fp*+ 1.0 2.0 3.0)

Error: unbound variable: g18021803

        Call history:

        <syntax>          (fp*+ 1.0 2.0 3.0)
        <eval>    (fp*+ 1.0 2.0 3.0)    <--

But, fp*+ is found:

#;2> (procedure? fp*+)

I performed the following build steps:

git clone git://
cd, mv etc.
patch -p1 < 0001-Add-support-for-fused-multiply-add.patch
make PREFIX=XXX PLATFORM=linux install


Christian schrieb am 2021-11-07:
> Hi!

> Here a patch against the current git HEAD, adding support for "fp*+". Please 
> give it a try, if you want.
> This is experimental, if people consider this worthwhile, I can submit it for 
> adding to the core
> system. Note that you still may need passing extra C-compiler options to 
> enable inlining of
> the fma(3) call.

> cheers,
> felix

Dr. rer. nat. Christian Himpe
University of Münster / Applied Mathematics Münster
Orléans-Ring 10 / 48149 Münster / Germany

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