JDK-8272706 : Java impl and Compiler IR changes for masked vector operations.
  • Type: Sub-task
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 18
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • OS: generic
  • CPU: generic
  • Submitted: 2021-08-19
  • Updated: 2021-11-15
  • Resolved: 2021-11-15
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tbdFixed
Description
- Re-organize vector API java implementation to use single C2 compiler intrinsic entry point for both masked and non-masked operations.
- Pass an explicit mask object (and associated class instance) to various vector intrinsic routines.
- Change existing vector API specific inline expansion routines (LibraryCallKit::inline_vector_*) to generate masked IR nodes for targets which support predicated vector instruction (SVE/AVX512) else generate appropriate graph shape using VectorBlend operation.