JDK-8005544 : Use 256bit YMM registers in arraycopy stubs on x86
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: compiler
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • CPU: x86
  • Submitted: 2012-12-27
  • Updated: 2022-01-07
  • Resolved: 2013-01-04
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JDK 7 JDK 8 Other
7u40Fixed 8Fixed hs24Fixed
Related Reports
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Relates :  
New x86 processors with AVX2 have wide memory bus and improved memory operations with YMM registers. Use them to copy data in arraycopy stubs.
URL: http://hg.openjdk.java.net/hsx/hsx25/hotspot/rev/e2e6bf86682c User: amurillo Date: 2013-01-11 12:07:43 +0000

URL: http://hg.openjdk.java.net/hsx/hotspot-comp/hotspot/rev/e2e6bf86682c User: kvn Date: 2013-01-04 03:44:27 +0000