[llvm] InstCombine/Select: remove redundant code (NFC) (PR #112388)

[Yingwei Zheng via llvm-commits]

https://github.com/dtcxzyw commented:

FYI this piece of code still has (small) code coverage on my dataset.
See also https://dtcxzyw.github.io/llvm-opt-benchmark/coverage/data/zyw/opt/actions-runner/_work/llvm-opt-benchmark/llvm-opt-benchmark/llvm/llvm-project/llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp.html#L1961.

Of course we can just drop them/make the logic simpler :)


https://github.com/llvm/llvm-project/pull/112388