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  1. JDK
  2. JDK-8170039

Change UseAVX < 3 on SKX/KNL to not emit evex vector check

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: P3
    • Resolution: Fixed
    • Affects Version/s: 9
    • Fix Version/s: 9
    • Component/s: hotspot
    • Labels:
      None
    • Subcomponent:
    • Resolved In Build:
      b150
    • OS:
      linux

      Description

      Glibc uses a single convention for save/restore, so when the user asks for UseAVX that excludes EVEX (3), we should offer non EVEX based save/restore for that path by not emitting the EVEX vector check code.

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            • Assignee:
              mcberg Michael Berg
              Reporter:
              mcberg Michael Berg
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