JDK-8170328 : PPC64: Use andis instead of lis/and
  • Type: Bug
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 9
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • OS: linux
  • CPU: ppc
  • Submitted: 2016-11-24
  • Updated: 2018-02-15
  • Resolved: 2016-11-30
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JDK 8 JDK 9
8u162Fixed 9 b150Fixed
Description
On replacing lis/and by a single instruction (andis) it's 
possible to reduce the path length so the program is shorter, and therefore is faster. 

It's related to the discussion started here: 
http://mail.openjdk.java.net/pipermail/hotspot-compiler-dev/2016-October/024664.html
Comments
http://mail.openjdk.java.net/pipermail/hotspot-compiler-dev/2016-November/024997.html
25-11-2016