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

[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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aengelke wrote:

This fills 4 padding bytes, the size of an SDNode remains unchanged at 88 bytes (x86-64).

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