dtor-derived-class.cpp
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// RUN: %clangxx_msan %s -O0 -fsanitize=memory -fsanitize-memory-use-after-dtor -o %t && MSAN_OPTIONS=poison_in_dtor=1 %run %t >%t.out 2>&1
// RUN: %clangxx_msan %s -O1 -fsanitize=memory -fsanitize-memory-use-after-dtor -o %t && MSAN_OPTIONS=poison_in_dtor=1 %run %t >%t.out 2>&1
// RUN: %clangxx_msan %s -O2 -fsanitize=memory -fsanitize-memory-use-after-dtor -o %t && MSAN_OPTIONS=poison_in_dtor=1 %run %t >%t.out 2>&1
#include <sanitizer/msan_interface.h>
#include <assert.h>
struct Base {
int x;
Base() { x = 5; }
virtual ~Base() {}
};
struct Derived : public Base {
int y;
Derived() { y = 10; }
~Derived() {}
};
int main() {
Derived *d = new Derived();
d->~Derived();
// Verify that local pointer is unpoisoned, and that the object's
// members are.
assert(__msan_test_shadow(&d, sizeof(d)) == -1);
assert(__msan_test_shadow(&d->x, sizeof(d->x)) != -1);
assert(__msan_test_shadow(&d->y, sizeof(d->y)) != -1);
Base *b = new Derived();
b->~Base();
// Verify that local pointer is unpoisoned, and that the object's
// members are.
assert(__msan_test_shadow(&b, sizeof(b)) == -1);
assert(__msan_test_shadow(&b->x, sizeof(b->x)) != -1);
return 0;
}