[Mesa-dev] [PATCH] faster util_next_power_of_two() function

[Benjamin Bellec]

Le 06/06/2011 23:54, Roland Scheidegger a écrit :
> Also I believe this builtin requires gcc 3.4 - not sure though if the
> rest of the code compiles on older gcc.
> 
> Roland

Yes I checked, __builtin_clz() appeared first time in GCC 3.4.0
documentation.

Benjamin