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// Verify that -fsanitize=vptr downcast instrumentation works properly
// inside of constexpr.
// { dg-do compile }
// { dg-options "-std=c++11 -fsanitize=vptr" }
struct S {
constexpr S() : a(0) {}
int a;
int f() { return 0; }
virtual int v() { return 0; }
};
struct T : S {
constexpr T() : b(0) {}
int b;
int g() { return 0; }
virtual int v() { return 1; }
constexpr const T *foo() { return (const T *) reinterpret_cast<const S *> (this); }
};
constexpr T t;
constexpr const T *p = t.foo ();
template <typename U>
struct V {
constexpr V() : a(0) {}
int a;
int f() { return 0; }
virtual int v() { return 0; }
};
template <typename U>
struct W : V<U> {
constexpr W() : b(0) {}
int b;
int g() { return 0; }
virtual int v() { return 1; }
constexpr const W<U> *foo() { return (const W<U> *) reinterpret_cast<const V<U> *> (this); }
};
constexpr W<int> w;
constexpr const W<int> *s = w.foo ();
template <typename U>
int foo (void)
{
static constexpr T t;
static constexpr const T *p = t.foo ();
static constexpr W<U> w;
static constexpr const W<U> *s = w.foo ();
return t.b + w.b;
}
int x = foo <char> ();
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