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  1. JDK
  2. JDK-8277508

need to check has_predicated_vectors before calling scalable_predicate_reg_slots

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    • b26

    Description

      A separate set of predicate registers is not mandatory for an implementation of scalable vectors. It will cause a failure in some platform which supports scalable vectors without explicit predicated registers, like riscv. Other call sites are all checked except in Matcher::init_first_stack_mask().

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              yadongwang Yadong Wang
              yadongwang Yadong Wang
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