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author | Paul Zimmermann <Paul.Zimmermann@inria.fr> | 2021-04-02 08:21:06 +0200 |
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committer | Paul Zimmermann <Paul.Zimmermann@inria.fr> | 2021-04-07 13:23:39 +0200 |
commit | 43576de04afc6a0896a3ecc094e1581069a0652a (patch) | |
tree | 42b35efc19ae2a9f22c354176d83173f74818268 /configure.ac | |
parent | d1a3dcabf2f89233a99a4a9be08f9f407da0b6b4 (diff) | |
download | glibc-43576de04afc6a0896a3ecc094e1581069a0652a.tar.gz glibc-43576de04afc6a0896a3ecc094e1581069a0652a.tar.xz glibc-43576de04afc6a0896a3ecc094e1581069a0652a.zip |
Improve the accuracy of tgamma (BZ #26983)
With this patch, the maximal known error for tgamma is now reduced to 9 ulps for dbl-64, for all rounding modes. Since exhaustive testing is not possible for dbl-64, it might be that there are still cases with an error larger than 9 ulps, but all known cases are fixed (intensive tests were done to find cases with large errors). Tested on x86_64 and powerpc (and by Adhemerval Zanella on aarch64, arm, s390x, sparc, and i686). Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Diffstat (limited to 'configure.ac')
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