[llvm] [InstCombine] handle trunc to i1 in foldLogOpOfMaskedICmps. (PR #128861)

[Andreas Jonson via llvm-commits]

andjo403 wrote:

> This regression is still outstanding: https://alive2.llvm.org/ce/z/4tZwjg Can you pre-commit this test?

have added a reduced version of the test in https://github.com/llvm/llvm-project/commit/16573315d986568641e536c37c84fcc5dd161bf6 

https://github.com/llvm/llvm-project/pull/128861