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// Check that __asan_poison_memory_region works.
// RUN: %clangxx_asan -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s
//
// Check that we can disable it
// RUN: %env_asan_opts=allow_user_poisoning=0 %run %t
#include <stdlib.h>
extern "C" void __asan_poison_memory_region(void *, size_t);
int main(int argc, char **argv) {
char *x = new char[16];
x[10] = 0;
__asan_poison_memory_region(x, 16);
int res = x[argc * 10]; // BOOOM
// CHECK: ERROR: AddressSanitizer: use-after-poison
// CHECK: main{{.*}}use-after-poison.cc:[[@LINE-2]]
delete [] x;
return res;
}
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