[llvm] [FuncComp] Compare MDNodes in cmpMetadata using cmpMDNode. (PR #128878)

[Nikita Popov via llvm-commits]

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@@ -207,22 +212,51 @@ int FunctionComparator::cmpMetadata(const Metadata *L,
 
   auto *CL = dyn_cast<ConstantAsMetadata>(L);
   auto *CR = dyn_cast<ConstantAsMetadata>(R);
-  if (CL == CR)
-    return 0;
-  if (!CL)
+  if (CL && CR) {
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nikic wrote:

Was this supposed to be?
```suggestion
  if (CL || CR) {
```

https://github.com/llvm/llvm-project/pull/128878