[clang] [clang][StaticAnalyzer] Crash on loop unrolling mode (PR #82089)

[via cfe-commits]

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@@ -226,6 +226,17 @@ static bool isPossiblyEscaped(ExplodedNode *N, const DeclRefExpr *DR) {
           return false;
       }
     }
+
+    if (const SwitchStmt *SS = dyn_cast<SwitchStmt>(S)) {
+      for (const Stmt *CB : dyn_cast<CompoundStmt>(SS->getBody())->body()) {
+        for (const Decl *D : dyn_cast<DeclStmt>(CB)->decls()) {
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NagyDonat wrote:

And this will crash on all statements that are within a switch and not `DeclStmt`s (because the `dyn_cast` returns a nullpointer and you're calling a method on it).

https://github.com/llvm/llvm-project/pull/82089