[llvm] [InstCombine] Compare `icmp inttoptr, inttoptr` values directly (PR #107012)

[Nikita Popov via llvm-commits]

nikic wrote:

Please see https://llvm.org/docs/InstCombineContributorGuide.html, esp. the bit about pre-committing tests.

https://github.com/llvm/llvm-project/pull/107012