[llvm] [InstCombine] Fix pointer replacement in `foldSelectValueEquivalence` (PR #161701)

[Yingwei Zheng via llvm-commits]

dtcxzyw wrote:

> Maybe I'm missing something, but at least from the tests, aren't the three canReplacePointersIfEqual being invoked on the same pointers all the times? Couldn't this be done only once?

It is not commutative. You can always replace a pointer with a known dereferencable one.


https://github.com/llvm/llvm-project/pull/161701