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/* { dg-do run } */
#define numwords 2
typedef struct {
unsigned words[numwords];
} Child;
typedef struct {
Child child;
} Parent;
Parent my_or(Parent x, const Parent *y) {
const Child *y_child = &y->child;
for (int i = 0; i < numwords; i++) {
x.child.words[i] |= y_child->words[i];
}
return x;
}
int main() {
Parent bs[4];
__builtin_memset(bs, 0, sizeof(bs));
bs[0].child.words[0] = 1;
for (int i = 1; i <= 3; i++) {
bs[i] = my_or(bs[i], &bs[i - 1]);
}
if (bs[2].child.words[0] != 1)
__builtin_abort ();
return 0;
}
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