[llvm] [AArch64] Sanitise pow inputs using a target DAG combine (PR #192958)

[Paul Walker via llvm-commits]

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@@ -27763,6 +27714,65 @@ static SDValue trySwapVSelectOperands(SDNode *N, SelectionDAG &DAG) {
                      {InverseSetCC, SelectB, SelectA});
 }
 
+static SDValue performVselectPowCombine(SDNode *N,
+                                        TargetLowering::DAGCombinerInfo &DCI) {
+  SDValue Cond = N->getOperand(0);
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paulwalker-arm wrote:

Worth an assert to verify N is a select?

https://github.com/llvm/llvm-project/pull/192958