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| author | Wilco Dijkstra <Wilco.Dijkstra@arm.com> | 2021-11-30 16:29:25 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2021-12-13 09:02:34 -0300 |
| commit | ccfa865a82c648fde56864ea094f70ee1a8a944b (patch) | |
| tree | 5d05ad55e786295bb8c49afa244ac9646a8ee98a /posix/tst-spawn4.c | |
| parent | 6c848d70383e1dbe932ef41723ac0abfdeec7ca8 (diff) | |
| download | glibc-ccfa865a82c648fde56864ea094f70ee1a8a944b.tar.gz glibc-ccfa865a82c648fde56864ea094f70ee1a8a944b.tar.xz glibc-ccfa865a82c648fde56864ea094f70ee1a8a944b.zip | |
math: Improve hypot performance with FMA
Improve hypot performance significantly by using fma when available. The fma version has twice the throughput of the previous version and 70% of the latency. The non-fma version has 30% higher throughput and 10% higher latency. Max ULP error is 0.949 with fma and 0.792 without fma. Passes GLIBC testsuite.
Diffstat (limited to 'posix/tst-spawn4.c')
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