3 ms·
I think the real answer is that the DCE optimizer understands that y is assigned the same address in x, x never changes (after arithmetic cancels out), y never
by oso2k 12y ago
I think the real answer is that the DCE optimizer understands that y is assigned the same address in x, x never changes (after arithmetic cancels out), y never changes, and then the difference between y & x becomes 0.
- TheLoneWolfling 12y agoYep. And you can apply the same logic to the grandparent comment.