Hi Animesh,
Le 26/11/2018 à 14:23, Animesh Trivedi a écrit : > > * C++ bitmap code can be optimized further by using the unsigned integers > than "int64_t" for bitmap checks, and eliminating the kBitmap. See here > https://godbolt.org/z/deq0_q - compare the size of the assembly code. And > the performance measurements in the blog show up to 50% performance gains. > Alternatively if signed to unsigned upgrade is not possible (perhaps in > every language), then in the C++ code, we should use the bitmap operations > directory ( `<<3` for division by 8, and ` & 0x7` for modulo by 8 > operation), instead of `/` and `%`. Thank you for noticing this. Switching to unsigned (and do a static_cast to unsigned) sounds good to me. Regards Antoine.
