[clang] [analyzer] Fix uninitialized base class with initializer list when ctor is not declared in the base class (#70464) (PR #70792)

[Ella Ma via cfe-commits]

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@@ -0,0 +1,69 @@
+// Refer issue 70464 for more details.
+//
+// When the base class does not have a declared constructor, the base
+// initializer in the constructor of the derived class should use the given
+// initializer list to finish the initialization of the base class.
+//
+// Also testing base constructor and delegate constructor to make sure this
+// change will not break these two cases when a CXXConstructExpr is available.
+
+// RUN: %clang_analyze_cc1 %s -verify -analyzer-checker=core,debug.ExprInspection
+
+void clang_analyzer_dump(int);
+
+namespace init_list {
+
+struct foo {
+  int foox;
+};
+
+class bar : public foo {
+public:
+  bar() : foo{42} {
+    // The dereference to this->foox below should be initialized properly.
+    clang_analyzer_dump(this->foox); // expected-warning{{42 S32b}}
+  }
+};
+
+void entry() { bar test; }
+
+} // namespace init_list
+
+namespace base_ctor_call {
+
+void clang_analyzer_dump(int);
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Snape3058 wrote:

I forgot to remove this after merging three original input files.

https://github.com/llvm/llvm-project/pull/70792