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Description of problem:

Currently fdlibm optimization is disabled for PPC64, as a consequence StrictMath methods like, but not limited to, sin(), cos(), and tan() perform poorly. 

JBS bug id comprising full discussion and references:
https://bugs.openjdk.java.net/browse/JDK-8170153

How reproducible:
Please refer to "Initial discussion on ML" link for a full discussion and how to reproduce the issue.

Dear maintainer, upstream patch for OpenJDK 9 is reviewed and awaiting Oracle's approval to be merged. Backport to OpenJDK 8 will be requested in the due time but is trivial.

Thanks.

Hi Andrew,

Please, find the patches in question already backported to 8u upstream:

http://hg.openjdk.java.net/jdk8u/jdk8u-dev/rev/fddd627ea372
http://hg.openjdk.java.net/jdk8u/jdk8u-dev/jdk/rev/80927e772b9a

Thanks.

Looks like they're already in the aarch64/jdk8u repo too:

http://hg.openjdk.java.net/aarch64-port/jdk8u/rev/7dc91fd23728
http://hg.openjdk.java.net/aarch64-port/jdk8u/jdk/rev/7c54c63ba667

So we'll pick them up anyway.

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2017:1831