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  1. JDK
  2. JDK-8287984

AArch64: [vector] Make all bits set vector sharable for match rules

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    • b05
    • aarch64

    Description

      There are optimized rules for vector not/and_not in neon and sve, like:
      ```
        match(Set dst (XorV src (ReplicateB m1)));
        match(Set dst (XorV src (ReplicateS m1)));
        match(Set dst (XorV src (ReplicateI m1)));
      ```

      And the rules for vector mask in sve like:

      match(Set pd (AndVMask pn (XorVMask pm (MaskAll m1))));

      It can be influenced if "MaskAll" or "Replicate" is not single used.

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              xgong Xiaohong Gong (Inactive)
              xgong Xiaohong Gong (Inactive)
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