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  1. JDK
  2. JDK-8236443

Issues with specializing vector register type for phi operand with generic operands

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    • 14
    • b32
    • x86

        While merging the vectorIntrinsics with generic operands, we came across an issue:
        If the vector operand is a phi node then Matcher::specialize_vector_operand(MachNode* m, uint idx) is not able to specialize vector register type and throws an assert that phi is not a Mach node.
        This problem was not seen on jdk mainline, mostly because vector phi nodes usually don't occur there as auto-vectorization is limited to single basic block counted loops.

              jbhateja Jatin Bhateja
              sviswanathan Sandhya Viswanathan
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