JDK-8154975 : Update for vectorizedMismatch with AVX512
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 9
  • Priority: P3
  • Status: Resolved
  • Resolution: Fixed
  • CPU: x86_64
  • Submitted: 2016-04-22
  • Updated: 2016-05-26
  • Resolved: 2016-04-27
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JDK 9
9 b120Fixed
Related Reports
Relates :  
JDK-8143355 - Update for addition of vectorizedMismatch intrinsic for x86
Description
vectorizedMismatch AVX512 enabled intrinsics. Using mask registers for a tail of the loops.
Comments
Updated Webrev: http://cr.openjdk.java.net/~vdeshpande/8154975/webrev.01/
26-04-2016
Webrev: http://cr.openjdk.java.net/~vdeshpande/8154975/webrev.00/ We see 2x gain with long arrays over current intrinsic in avx2
23-04-2016