[llvm] [LLVM][IR] Add support for address space names in DataLayout (PR #170559)

[Nikita Popov via llvm-commits]

https://github.com/nikic approved this pull request.

LGTM. I'm a bit concerned that this will make it harder to create DL-independent test cases. Possibly we'll need an option to disable named address spaces during printing.

https://github.com/llvm/llvm-project/pull/170559