[llvm-branch-commits] [llvm] [IR] Introduce the `ptrtoaddr` instruction (PR #139357)

[Alexander Richardson via llvm-branch-commits]

arichardson wrote:

> Is this PR part of a stack or something?

Yes there are follow-up change to make better use of the new instruction but this one can be reviewed standalone. The `spr` tool doesn't auto link related PRs, I can add some comments to link them here.

#139601 #139423

https://github.com/llvm/llvm-project/pull/139357