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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2021-04-03 23:52:45 -0300 |
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| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2021-12-13 09:08:07 -0300 |
| commit | 2eb1cd2f47fe6568c539fa105551bb73df8368ec (patch) | |
| tree | 8404bf6b82969a864d916c1bdbda844fad7231e2 /ChangeLog.old | |
| parent | a1d3c9b64266d84736ba8eac96aa864165905b79 (diff) | |
| download | glibc-2eb1cd2f47fe6568c539fa105551bb73df8368ec.tar.gz glibc-2eb1cd2f47fe6568c539fa105551bb73df8368ec.tar.xz glibc-2eb1cd2f47fe6568c539fa105551bb73df8368ec.zip | |
math: Remove powerpc e_hypot
The generic implementation is shows only slight worse performance: POWER10 reciprocal-throughput latency master 8.28478 13.7253 new hypot 7.21945 13.1933 POWER9 reciprocal-throughput latency master 13.4024 14.0967 new hypot 14.8479 15.8061 POWER8 reciprocal-throughput latency master 15.5767 16.8885 new hypot 16.5371 18.4057 One way to improve might to make gcc generate xsmaxdp/xsmindp for fmax/fmin (it onl does for -ffast-math, clang does for default options). Checked on powerpc64-linux-gnu (power8) and powerpc64le-linux-gnu (power9).
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