[PATCH] D104381: [analyzer] Added a test case for PR46264

[Denys Petrov via Phabricator via cfe-commits]

This revision was landed with ongoing or failed builds.
This revision was automatically updated to reflect the committed changes.
Closed by commit rGe76c008c906a: [analyzer] Added a test case for PR46264 (authored by ASDenysPetrov).

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D104381/new/

https://reviews.llvm.org/D104381

Files:
  clang/test/Analysis/diagnostics/PR46264.cpp


Index: clang/test/Analysis/diagnostics/PR46264.cpp
===================================================================
--- /dev/null
+++ clang/test/Analysis/diagnostics/PR46264.cpp
@@ -0,0 +1,36 @@
+// RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-output=text -verify %s
+
+// PR46264
+// This case shall not crash with an assertion failure about void* dereferening.
+// The crash has been last seen on commit
+// `3ed8ebc2f6b8172bed48cc5986d3b7af4cfca1bc` from 24.05.2020.
+namespace ns1 {
+namespace a {
+class b {
+public:
+  typedef int b::*c;
+  operator c() { return d ? &b::d : 0; }
+  // expected-note at -1{{'?' condition is true}}
+  // expected-note at -2{{Assuming field 'd' is not equal to 0}}
+  // expected-note at -3{{Returning value, which participates in a condition later}}
+  int d;
+};
+} // namespace a
+using a::b;
+class e {
+  void f();
+  void g();
+  b h;
+};
+void e::f() {
+  e *i;
+  // expected-note at -1{{'i' declared without an initial value}}
+  if (h)
+    // expected-note at -1{{Taking true branch}}
+    // expected-note at -2{{'b::operator int ns1::a::b::*'}}
+    // expected-note at -3{{Returning from 'b::operator int ns1::a::b::*'}}
+    i->g();
+  // expected-note at -1{{Called C++ object pointer is uninitialized}}
+  // expected-warning at -2{{Called C++ object pointer is uninitialized}}
+}
+} // namespace ns1


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