163a164,180
> /**
> * Returns the bit position of the LSB that is set in the input
> */
> inline int
> findLsbSet(uint64_t val) {
> int lsb = 0;
> if (!val)
> return sizeof(val) * 8;
> if (!bits(val, 31,0)) { lsb += 32; val >>= 32; }
> if (!bits(val, 15,0)) { lsb += 16; val >>= 16; }
> if (!bits(val, 7,0)) { lsb += 8; val >>= 8; }
> if (!bits(val, 3,0)) { lsb += 4; val >>= 4; }
> if (!bits(val, 1,0)) { lsb += 2; val >>= 2; }
> if (!bits(val, 0,0)) { lsb += 1; }
> return lsb;
> }
>