JDK-8284964 : Add new vector operation for compress and expand bits
  • Type: Sub-task
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: tbd
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2022-04-18
  • Updated: 2022-04-26
  • Resolved: 2022-04-26
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Other
tbdFixed
Related Reports
Blocks :  
JDK-8283892 - Compress and expand bits
Relates :  
JDK-8283598 - [vectorapi] Add new vector operation for compress and expand bits
Description
Expand the supported set of bitwise integral lanewise operations to compress and expand bits.

These two operations are analogous to the cross-lane _compress_  and _expand_ operations, except that they map bits rather than entire lanes.  (For more information on bitwise _compress_ and _expand_ see §7-4 and §7-5 of [_Hacker's Delight_](https://en.wikipedia.org/wiki/Hacker's_Delight) by Henry S. Warren, Addison-Wesley, 2013.)