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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

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        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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                  Updated:
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