[llvm] [RemoveDIs][DebugInfo] Handle DPVAssign in most transforms (PR #78986)

[Orlando Cazalet-Hyams via llvm-commits]

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@@ -1594,6 +1594,10 @@ static void fixupDebugInfoPostExtraction(Function &OldFunc, Function &NewFunc,
         DPVsToDelete.push_back(&DPV);
         continue;
       }
+      if (DPV.isDbgAssign() && IsInvalidLocation(DPV.getAddress())) {
+        DPVsToDelete.push_back(&DPV);
+        continue;
+      }
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OCHyams wrote:

there's a comment a few lines up that needs deleting `// FIXME: support dbg.assign form of DPValues.`

https://github.com/llvm/llvm-project/pull/78986