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  1. JDK
  2. JDK-8235288

AVX 512 instructions inadvertently used on Xeon for small vector width operations

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    • Subcomponent:
    • Introduced In Version:
      9
    • Resolved In Build:
      b27
    • CPU:
      x86

      Backports

        Description

        For vector replicate and reduction operations vinsert and vextract instructions are used. When UseAVX level is set to 3, these instructions are unnecessarily encoded with 512 bit vector width.

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                • Assignee:
                  sviswanathan Sandhya Viswanathan
                  Reporter:
                  sviswanathan Sandhya Viswanathan
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                  • Created:
                    Updated:
                    Resolved: