JDK-8272359 : X86: Backend support for optimizing vector masked operations over AVX512 target.
  • Type: Sub-task
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 18
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • CPU: x86
  • Submitted: 2021-08-12
  • Updated: 2021-11-15
  • Resolved: 2021-11-15
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Related Reports
Relates :  
JDK-8262356 - Optimize existing masked operation support for AVX-512.
Description
Extend existing C2 compiler backed to support vector masking operations for AVX512.
  - Register allocation support for opmask registers [K1-K7] (already integrated into mainline JDK-8262355).
  - New instruction selection patterns for masked operations.
  - Relevant support in macro-assembler and assembler.