[llvm] [IPSCCP] Infer attributes on arguments (PR #107114)

[Nikita Popov via llvm-commits]

nikic wrote:

@rnk It's a work in progress :) See https://github.com/llvm/llvm-project/pull/105195 and https://github.com/llvm/llvm-project/pull/110040.

https://github.com/llvm/llvm-project/pull/107114