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  1. JDK
  2. JDK-8077838

Recent developments for ppc.

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    Details

    • Type: Enhancement
    • Status: Resolved
    • Priority: P4
    • Resolution: Fixed
    • Affects Version/s: 9
    • Fix Version/s: 9
    • Component/s: hotspot
    • Labels:
      None
    • Subcomponent:
    • Resolved In Build:
      b64
    • CPU:
      ppc

      Backports

        Description

        This change contains a lot of recent developments for ppc, mostly by SAP.
         - Recognition of Power 8 processors (by Tiago Daitx).
         - Support for more new Power 8 instructions.
         - Support for transactional memory. This is implemented but not yet tested
           thoroughly due to limitiations of the OS support. Not enabled.
         - java.lang.math.*Exact intrinsics
         - Some C2 optimizations and fixes:
           * Handling of flag registers. Some instructions would lead to uncompilable
             methods due to not allocatable register patterns.
           * Free some integer registers to use them for allocation. Handle compressed
             oops base as constant.
           * Unscaled class compression.
         - Type profiling fixes.
         

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                Assignee:
                goetz Goetz Lindenmaier
                Reporter:
                goetz Goetz Lindenmaier
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                  Created:
                  Updated:
                  Resolved: