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  1. JDK
  2. JDK-6941938

Improve array equals intrinsic on SPARC

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    Details

    • Type: Enhancement
    • Status: Resolved
    • Priority: P4
    • Resolution: Fixed
    • Affects Version/s: hs18, 9
    • Fix Version/s: 9
    • Component/s: hotspot
    • Subcomponent:
    • Resolved In Build:
      b120
    • CPU:
      sparc
    • OS:
      solaris_10

      Description

      MacroAssembler::array_equals() currently emits a 4-byte array comparison loop on SPARC but we can do a 8-byte comparison if the array addresses are doubleword aligned. The intrinsic is used for byte/char Arrays.equals() and String.equals().

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              Assignee:
              thartmann Tobias Hartmann
              Reporter:
              kvn Vladimir Kozlov
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