JDK-8005419 : Improve intrinsics code performance on x86 by using AVX2
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: compiler
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • OS: generic
  • CPU: x86
  • Submitted: 2012-12-21
  • Updated: 2013-06-26
  • Resolved: 2013-01-09
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JDK 7 JDK 8 Other
7u40Fixed 8Fixed hs24Fixed
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Description
Use AVX2 wide YMM registers and new instructions in arraycopy stubs, string intrinsics, clear array code.
Comments
Use this RFE to improve string intrinsics. Use separate (linked) RFEs for other optimizations.
2012-12-27