Mark Geisert wrote:
[... blah blah ...]

I got tripped up by misspelling and not being able to link clang{,++} programs on my test system. I checked the .o files with objdump: Clang and clang++ both support __builtin_popcountl, but they emit code for the Hackers Delight algorithm rather than using the single-instruction popcnt. Sorry for the confustion [sic].

..mark

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