[llvm] [DataLayout] Introduce DataLayout::getPointerAddressSize(AS) (PR #137412)

[Alexander Richardson via llvm-commits]

arichardson wrote:

> What's the difference between `addr` and `size`? (And what is `size` anyway?)

Some pointer types can be larger than the underlying address space (e.g. CHERI capabilities where the size of the pointer is 2*addr) since there is additional metadata. For most "normal" architectures both of these will be the same.



https://github.com/llvm/llvm-project/pull/137412