[llvm] [CodeGen][SDAG] Remove Combiner WorklistMap (PR #92900)

[Jay Foad via llvm-commits]

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@@ -619,6 +619,9 @@ END_TWO_BYTE_PACK()
   /// Unique id per SDNode in the DAG.
   int NodeId = -1;
 
+  /// Index in worklist of DAGCombiner, or -1.
+  int CombinerWorklistIndex = -1;
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jayfoad wrote:

Does this increase the size of the node, or does it fill a hole (when pointers are 64-bit)?

https://github.com/llvm/llvm-project/pull/92900