------- Comment #3 from fxcoudert at gcc dot gnu dot org  2009-05-04 19:37 
-------
About POPCNT and POPPAR, beware! Implementations are much harder than simply
using the GCC __builtin_popcount{,l,ll}: see PR40019 for similar issue with
LEADZ and TRAILZ.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38282

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