[llvm] [DA] Infer nsw on validated fixed-size delinearized subscripts (PR #201882)

[Nikita Popov via llvm-commits]

nikic wrote:

It's possible that this old patch I have lying around would help: https://github.com/llvm/llvm-project/commit/987117fd7ae9aef83e1551faa8c8cd0a96a2c90a

https://github.com/llvm/llvm-project/pull/201882