RFR: JDK-8302040: Port fdlibm sqrt to Java

Thu Feb 23 23:36:00 UTC 2023

The wheel of FDLIBM porting turns a notch and sqrt comes into play.

While the sqrt operation usually has a hardware implementation that is intrinsified, for completeness a software implementation should be available as well.

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Commit messages:
 - JDK-8302040: Port fdlibm sqrt to Java

Changes: https://git.openjdk.org/jdk/pull/12736/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=12736&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8302040
  Stats: 865 lines in 6 files changed: 861 ins; 0 del; 4 mod
  Patch: https://git.openjdk.org/jdk/pull/12736.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/12736/head:pull/12736

PR: https://git.openjdk.org/jdk/pull/12736