__builtin_ctzll 72 lib/lzo/lzo1x_compress.c ir += __builtin_ctzll(dv64) >> 3; __builtin_ctzll 180 lib/lzo/lzo1x_compress.c m_len += (unsigned) __builtin_ctzll(v) / 8; __builtin_ctzll 894 lib/zstd/compress.c return (__builtin_ctzll((U64)val) >> 3);