Uploaded image for project: 'JDK'
  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

          Activity

          Show
          thartmann Tobias Hartmann added a comment - http://mail.openjdk.java.net/pipermail/hotspot-compiler-dev/2016-November/024997.html
          Hide
          hgupdate HG Updates added a comment -
          URL: http://hg.openjdk.java.net/jdk9/hs/hotspot/rev/3866c59ee901
          User: mdoerr
          Date: 2016-11-30 09:49:15 +0000
          Show
          hgupdate HG Updates added a comment - URL: http://hg.openjdk.java.net/jdk9/hs/hotspot/rev/3866c59ee901 User: mdoerr Date: 2016-11-30 09:49:15 +0000
          Hide
          hgupdate HG Updates added a comment -
          URL: http://hg.openjdk.java.net/jdk9/jdk9/hotspot/rev/3866c59ee901
          User: lana
          Date: 2016-12-21 16:40:09 +0000
          Show
          hgupdate HG Updates added a comment - URL: http://hg.openjdk.java.net/jdk9/jdk9/hotspot/rev/3866c59ee901 User: lana Date: 2016-12-21 16:40:09 +0000

            People

            • Assignee:
              gromero Gustavo Romero
              Reporter:
              gromero Gustavo Romero
            • Votes:
              0 Vote for this issue
              Watchers:
              3 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved: