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(parent: 6687430) | patch

Avoid function call overhead of pg_popcount() in syslogger.c.

Avoid function call overhead of pg_popcount() in syslogger.c.

Instead of calling the pg_popcount() function for a single byte, we
can look up the value in the pg_number_of_ones array.

Discussion: https://postgr.es/m/20240401221117.GB2362108%40nathanxps13

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