JDK-8333382 : [s390x] Move population_count implementation out of ad file
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 23
  • Priority: P3
  • Status: Open
  • Resolution: Unresolved
  • OS: linux
  • CPU: s390x
  • Submitted: 2024-06-01
  • Updated: 2024-06-01
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tbdUnresolved
Related Reports
Relates :  
JDK-8331126 - [s390x] secondary_super_cache does not scale well
Description
We need to move popcnt instruction implementation out of s390.ad file as it is required to be required some methods present in JDK-8331126.

Currently z_popcnt instruction will behave differently if used by hardware older than z15, as they don't have Miscellaneous-Instruction- Extensions Facility 3.