[llvm] [SelectionDAGISel][WIP] Separate the operand numbers in OPC_EmitNode/MorphNodeTo into their own table. (PR #178722)

[Pengcheng Wang via llvm-commits]

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@@ -1544,9 +1590,14 @@ void llvm::EmitMatcherTable(Matcher *TheMatcher, const CodeGenDAGPatterns &CGP,
 
   MatcherEmitter.EmitHistogram(OS);
 
+  OS << "  static const uint8_t OperandLists[] = {\n";
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wangpc-pp wrote:

We don't have a test for `OperandLists`? Can we add one?

https://github.com/llvm/llvm-project/pull/178722