undefined | Better HN

0 pointsDylan168074y ago0 comments

"just"? That's 2 additions, 2 shifts, and 2-3 bitwise operations, while the other method is 1 addition, 1 shift, and 2 bitwise operations.

0 comments

I would think optimizing compilers can optimize this expression to the one in the article, but I tried it on godbolt and they don't.

j / k navigate · click thread line to collapse

0 pointsDylan168074y ago0 comments

"just"? That's 2 additions, 2 shifts, and 2-3 bitwise operations, while the other method is 1 addition, 1 shift, and 2 bitwise operations.

I would think optimizing compilers can optimize this expression to the one in the article, but I tried it on godbolt and they don't.

j / k navigate · click thread line to collapse