test/Analysis/PR46264.cpp

// RUN: %clang_analyze_cc1 -analyzer-checker=core -verify %s

// rdar://problem/64202361

struct A {
  int a;
  struct {
    struct {
      int b;
      union {
        int c;
      };
    };
  };
};

int testCrash() {
  int *x = 0;
  int A::*ap = &A::a;

  if (ap)      // no crash
    return *x; // expected-warning{{Dereference of null pointer (loaded from variable 'x')}}

  return 10;
}

int testIndirectCrash() {
  int *x = 0;
  int A::*cp = &A::c;

  if (cp)      // no crash
    return *x; // expected-warning{{Dereference of null pointer (loaded from variable 'x')}}

  return 10;
}