[FFmpeg-devel] [PATCH] avutil/intmath: use bzhi gcc builtin in av_mod_uintp2()

[Carl Eugen Hoyos]

On Friday 26 June 2015 09:52:31 pm James Almer wrote:

> +#if AV_GCC_VERSION_AT_LEAST(5,1)
> +#define av_mod_uintp2 __builtin_ia32_bzhi_si

Since there are compilers != gcc that define GCC 
(for example icc), this needs a configure check imo.

What is the advantage over the inline version?

Carl Eugen