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// RUN: %clangxx_asan -O0 %s -o %t
// RUN: not %run %t 2>&1 | FileCheck %s
struct A {
int a[8];
};
int bar(A *a) {
int *volatile ptr = &a->a[0];
return *(ptr - 1);
}
void foo(A a) {
bar(&a);
}
int main() {
foo(A());
}
// CHECK: ERROR: AddressSanitizer: stack-buffer-underflow
// CHECK: READ of size 4 at
// CHECK: is located in stack of thread
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