JDK-6941938 : Improve array equals intrinsic on SPARC
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: hs18,9
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • OS: solaris_10
  • CPU: sparc
  • Submitted: 2010-04-08
  • Updated: 2016-05-26
  • Resolved: 2016-04-28
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9 b120Fixed
Related Reports
Relates :  
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().
First prototype: http://cr.openjdk.java.net/~thartmann/6941938/webrev.00/

May be it can help you.