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  1. JDK
  2. JDK-8170328

PPC64: Use andis instead of lis/and

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: P4
    • Resolution: Fixed
    • Affects Version/s: 9
    • Fix Version/s: 9
    • Component/s: hotspot
    • Labels:
      None
    • Subcomponent:
    • Resolved In Build:
      b150
    • CPU:
      ppc
    • OS:
      linux

      Backports

        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

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                • Assignee:
                  gromero Gustavo Romero
                  Reporter:
                  gromero Gustavo Romero
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                  • Created:
                    Updated:
                    Resolved: