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

[Nikita Popov via llvm-commits]

nikic wrote:

Looks like the hwasan build bot with this commit passed: https://lab.llvm.org/buildbot/#/builders/55/builds/2229

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