[llvm] [InstCombine] Fold selection between less than zero and one (PR #69961)

[Nikita Popov via llvm-commits]

https://github.com/nikic commented:

Agree with @XChy on how to handle this. That will enable more combinations of predicates to fold.

This is something of a recurring pattern, see https://reviews.llvm.org/D154791 and https://github.com/llvm/llvm-project/pull/68244 for related patches.

https://github.com/llvm/llvm-project/pull/69961