[llvm] [TargetLowering] Prefer selects over usubo if we do the same for ucmp (PR #159889)

[via llvm-commits]

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@@ -9782,7 +9782,8 @@ SDValue TargetLowering::expandABD(SDNode *N, SelectionDAG &DAG) const {
   // flag if the (scalar) type is illegal as this is more likely to legalize
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AZero13 wrote:

Honestly maybe the function should be renamed to be more fitting: it's basically there because on some platforms that have a csel instruction, it's better to use them. 

https://github.com/llvm/llvm-project/pull/159889