child_start
node->child_start = node->child_end = node->rover =
node->child_start = node->child_end =
node->rover = node->child_start;
int child_start; /* Array index of the first child node */
child_start(child, "./fpsimd-test");
child_start(child, "./kernel-test");
child_start(child, "./sve-test");
child_start(child, "./ssve-test");
child_start(child, "./za-test");
child_start(child, "./zt-test");