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authorWilco Dijkstra <Wilco.Dijkstra@arm.com>2021-11-30 16:29:25 -0300
committerAdhemerval Zanella <adhemerval.zanella@linaro.org>2021-12-13 09:02:34 -0300
commitccfa865a82c648fde56864ea094f70ee1a8a944b (patch)
tree5d05ad55e786295bb8c49afa244ac9646a8ee98a /math/auto-libm-test-out-log
parent6c848d70383e1dbe932ef41723ac0abfdeec7ca8 (diff)
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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.
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