[PATCH] add inputs to auto-libm-test-in yielding larger errors

[Joseph Myers]

On Mon, 30 Nov 2020, Paul Zimmermann wrote:

>        Dear Joseph,
> 
> submitted as https://sourceware.org/bugzilla/show_bug.cgi?id=26982, and a
> similar one for tgamma (https://sourceware.org/bugzilla/show_bug.cgi?id=26983).

Thanks.  It would be interesting to know if similar cases can be found for 
other floating-point formats (inputs with large errors for different 
formats could go in the same bugs rather than needing a separate bug for 
each format) as that might affect how many implementations need to get 
similar fixes.  You've done exhaustive searches for float.  But have you 
looked for such large errors for these functions for ldbl-96 (x86 extended 
precision) or ldbl-128 (binary128), for example?  (Or for ldbl-128ibm, 
with the larger threshold of permitted errors there and the definition of 
ulps that treats it like a format with exactly 106 bits of precision.)

-- 
Joseph S. Myers
joseph@codesourcery.com