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  1. JDK
  2. JDK-8241484

Optimizing vector logic not operation

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    • Icon: Enhancement Enhancement
    • Resolution: Unresolved
    • Icon: P4 P4
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      - Current Implementation of vector logic not operation performs a Xor operation between the input vector and Broadcasted -1 value which is read from an externally initialized memory.
      - The broadcast operation can be made efficient by replacing a read from external memory (which may cause a cache miss) over non-AVX3 targets.
      - Over AVX3 a single ternary logic instruction is sufficient to replace complete pattern involving Xor and broadcast operation.

            jbhateja Jatin Bhateja
            jbhateja Jatin Bhateja
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