================
@@ -321,6 +321,51 @@ bool isExprToGetCheckedPtrCapableMember(const clang::Expr 
*E) {
   return result && *result;
 }
 
+bool isAllocInit(const Expr *E, const Expr **InnerExpr) {
+  auto *ObjCMsgExpr = dyn_cast<ObjCMessageExpr>(E);
+  if (auto *POE = dyn_cast<PseudoObjectExpr>(E)) {
+    if (unsigned ExprCount = POE->getNumSemanticExprs()) {
+      auto *Expr = POE->getSemanticExpr(ExprCount - 1)->IgnoreParenCasts();
----------------
steakhal wrote:

Could `ExprCount - 1` underflow in this context?

https://github.com/llvm/llvm-project/pull/161019
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