Vectorization support of Integer.bitCount() already exists but currently the same support is lacking for Long.bitCount(). Similar to the C2 PopCountVI node, we create a C2 PopCountVL node and use vpopcntq x86 instruction to enable vectorized Long.bitCount()
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JDK-8279900 compiler/vectorization/TestPopCountVectorLong.java fails due to vpopcntdq is not supported
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- Resolved
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JDK-8300487 Store cardinality as a field in BitSet
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- Closed
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