[llvm] [DAGCombiner] Expose CSE for shifts of logic operations (PR #213091)

[Justin Fargnoli via llvm-commits]

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justinfargnoli wrote:

```suggestion
combineShiftOfLogicOp(SDNode *N, TargetLowering::DAGCombinerInfo &DCI) {
```

https://github.com/llvm/llvm-project/pull/213091