JDK-8273406 : Optimize various masked vector operations for AVX512 target.
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: repo-panama
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • OS: generic
  • CPU: x86
  • Submitted: 2021-09-07
  • Updated: 2021-09-14
  • Resolved: 2021-09-14
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Other
repo-panamaFixed
Related Reports
Relates :  
JDK-8262356 - Optimize existing masked operation support for AVX-512.
Description
-  In continuation to Initial X86 backend support for masked vector operations (JDK-8262356),  extend backed to support following masked operations.
   -   Vector Rotate left/right.
   -   Vector Left/Right Arithmetic/Logical shift with immediate shift count.
   -   Vector SquareRoot operation over Float/Double primitive types.
   -   Optimize VectorMask.not operation.
 -  Enable masking optimizations for X86 KNL target.