[llvm] [GISel][CombinerHelper] Combine and(trunc(x), trunc(y)) -> trunc(and(x, y)) (PR #89023)

[Thorsten Schütt via llvm-commits]

tschuett wrote:

You can still put the pattern in MIR and the business logic in the CombinerHelper.

https://github.com/llvm/llvm-project/pull/89023