[llvm] [X86][SelectionDAG] - Add support for llvm.canonicalize intrinsic (PR #106370)

[Matt Arsenault via llvm-commits]

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@@ -57976,6 +57977,124 @@ static SDValue combineINTRINSIC_VOID(SDNode *N, SelectionDAG &DAG,
   return SDValue();
 }
 
+SDValue combineConstantCanonicalize(SDNode *Node, SelectionDAG &DAG) {
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arsenm wrote:

This would best be an APFloat->APFloat function free of the DAG machinery 

https://github.com/llvm/llvm-project/pull/106370