[8u-dev] Request for Approval: 8185975: PPC64: Fix vsldoi interface according to the ISA

[Gustavo Romero]

Hi,

Could the following backport be approved please?

"8185975: PPC64: Fix vsldoi interface according to the ISA"

JBS        : https://bugs.openjdk.java.net/browse/JDK-8185975
jdk10/jdk10: http://hg.openjdk.java.net/jdk10/jdk10/hotspot/rev/ef47198688ef
webrev     : http://cr.openjdk.java.net/~gromero/8185975_jdk8u/v1/

It's a tiny fix for a 4-bit field in instruction 'vsldoi'. The field must be
unsigned rather than signed. That change fixes the field in question and adapts
the use of 'vsldoi' when a negative value is being passed to conform to the
fixed 'vsldoi' version.

That change is also necessary for upcoming PPC64 backports and applies cleanly
except for some line offsets.

The copyright date in the changed files were updated (in webrev provided).

Thank you.

Best regards,
Gustavo