On Sunday, 6 December 2020 at 11:35:17 UTC, Ola Fosheim Grostad
wrote:
On Sunday, 6 December 2020 at 11:27:39 UTC, Max Haughton wrote:
[...]
No, unique doesnt need indirection, neither does ARC, we put
the ref count at a negative offset.
shared_ptr is a fat pointer with the ref count as a separate
object to support existing C libraries, and make weak_ptr easy
to implement. But no need for indirection.
[...]
I think you need a new IR, but it does not have to be used for
code gen, it can point back to the ast nodes that represent ARC
pointer assignments.
One could probably translate the one used in Rust, even.
https://gcc.godbolt.org/z/bnbMeY
