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Tag Archives: Intrinsics

Java Intrinsics and Performance

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The original question was How to count the number of 1’s a number will have in binary? I included a performance comparison of using Integer.bitCount() which can be turned into an intrinic i.e. a single machine code instruction POPCNT and the Java code which does the same thing. Question How do I count the number of 1’s a number will ...

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