S f() {
	S *p;

	p = (S *)(malloc(sizeof(S)));
	p->a[0] = 0;
	return *p;
}
*/
import "C"

// allocateStack extends the stack so that stack copying doesn't
// confuse the msan data structures.
//
//go:noinline
func allocateStack(i int) int {
	if i == 0 {
		return i
	}
	return allocateStack(i - 1)
}

// F1 marks a chunk of stack as uninitialized.