On Fri, 13 May 2022 08:24:21 GMT, Jatin Bhateja <jbhat...@openjdk.org> wrote:

> LUT should be generated only if UsePopCountInsturction is false 

Should there be `!UsePopCountInsturction` check then?

> restrict the scope of flag to only scalar popcount operation

Interesting. But AArch64 code does cover vector cases which just adds confusion.

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PR: https://git.openjdk.java.net/jdk/pull/8425

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