JDK-8052081 : Optimize code generated by C2 for Intel's Atom processor
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 9
  • Priority: P3
  • Status: Resolved
  • Resolution: Fixed
  • OS: generic
  • CPU: x86
  • Submitted: 2014-07-25
  • Updated: 2015-01-21
  • Resolved: 2014-08-05
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JDK 8 JDK 9
8u40Fixed 9 b28Fixed
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Description
Atom processor does not have AVX unit but it has SSE so we still can do vectorization.
CRC32 assembler code can be modified to use only SSE instructions to execute it on Atom processors too.