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  1. JDK
  2. JDK-8256058

Improve vector register handling in RegisterMap::pd_location() on x86

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    Details

    • Type: Enhancement
    • Status: Resolved
    • Priority: P3
    • Resolution: Fixed
    • Affects Version/s: 16
    • Fix Version/s: 16
    • Component/s: hotspot
    • Labels:
    • Subcomponent:
    • Resolved In Build:
      b26

      Description

      Frame layout of register saver is quite complex for vector registers: ZMM0-15 are split in 3 parts (XMM, upper YMM, and upper ZMM parts) while ZMM16-31 are stored in-full.

      Instead of reifying that in OopMap for every slot, improve RegisterMap::pd_location() to handle it.

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              Assignee:
              vlivanov Vladimir Ivanov
              Reporter:
              vlivanov Vladimir Ivanov
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                Resolved: