} else {
		useStack(bytes - sizeof x);
	}
}

static DWORD WINAPI threadEntry(LPVOID lpParam) {
	useStack(STACK_SIZE - (128<<10));
	return 0;
}

void bigStack(callback *cb) {
	bigStackCallback = cb;
	HANDLE hThread = CreateThread(NULL, STACK_SIZE, threadEntry, NULL, STACK_SIZE_PARAM_IS_A_RESERVATION, NULL);
	if (hThread == NULL) {
		fprintf(stderr, "CreateThread failed\n");
		exit(1);
	}

	// Next, verify that switching stacks doesn't break callbacks.

	char *stack1 = malloc(STACK_SIZE);
	if (stack1 == NULL) {
		perror("malloc");
		exit(1);
	}

	// Allocate the second stack before freeing the first to ensure we don't get
	// the same address from malloc.
	//
	// Will be freed in stackSwitchThread2.
	stack2 = malloc(STACK_SIZE);
	if (stack1 == NULL) {
		perror("malloc");
		exit(1);
	}

  options->stack_size = 0;
  options->guard_size = 0;
  options->numa_node = -1;
}

TF_Thread* TF_StartThread(const TF_ThreadOptions* options,
                          const char* thread_name, void (*work_func)(void*),
                          void* param) {
  ::tensorflow::ThreadOptions cc_options;
  cc_options.stack_size = options->stack_size;
  cc_options.guard_size = options->guard_size;

	_NOTE_TRIGGER = 0x1000000
)

type rtprio struct {
	_type uint16
	prio  uint16
}

type thrparam struct {
	start_func uintptr
	arg        unsafe.Pointer
	stack_base uintptr
	stack_size uintptr
	tls_base   unsafe.Pointer
	tls_size   uintptr
	child_tid  unsafe.Pointer // *int32
	parent_tid *int32
	flags      int32
	rtp        *rtprio
	spare      [3]uintptr
}

	_NOTE_TRIGGER = 0x1000000
)

type rtprio struct {
	_type uint16
	prio  uint16
}

type thrparam struct {
	start_func uintptr
	arg        unsafe.Pointer
	stack_base uintptr
	stack_size uintptr
	tls_base   unsafe.Pointer
	tls_size   uintptr
	child_tid  unsafe.Pointer // *int64
	parent_tid *int64
	flags      int32
	pad_cgo_0  [4]byte
	rtp        *rtprio
	spare      [3]uintptr
}

	_NOTE_TRIGGER = 0x1000000
)

type rtprio struct {
	_type uint16
	prio  uint16
}

type thrparam struct {
	start_func uintptr
	arg        unsafe.Pointer
	stack_base uintptr
	stack_size uintptr
	tls_base   unsafe.Pointer
	tls_size   uintptr
	child_tid  unsafe.Pointer // *int32
	parent_tid *int32
	flags      int32
	rtp        *rtprio
	spare      [3]uintptr
}

	_NOTE_TRIGGER = 0x1000000
)

type rtprio struct {
	_type uint16
	prio  uint16
}

type thrparam struct {
	start_func uintptr
	arg        unsafe.Pointer
	stack_base uintptr
	stack_size uintptr
	tls_base   unsafe.Pointer
	tls_size   uintptr
	child_tid  unsafe.Pointer // *int64
	parent_tid *int64
	flags      int32
	pad_cgo_0  [4]byte
	rtp        *rtprio
	spare      [3]uintptr
}

	_NOTE_TRIGGER = 0x1000000
)

type rtprio struct {
	_type uint16
	prio  uint16
}

type thrparam struct {
	start_func uintptr
	arg        unsafe.Pointer
	stack_base uintptr
	stack_size uintptr
	tls_base   unsafe.Pointer
	tls_size   uintptr
	child_tid  unsafe.Pointer // *int64
	parent_tid *int64
	flags      int32
	pad_cgo_0  [4]byte
	rtp        *rtprio
	spare      [3]uintptr
}

  %elem = "tf._SomeOp"() : () -> tensor<2xi32>
  // CHECK-NEXT: %[[STACK_VAL:.*]] = "tf.ReadVariableOp"(%[[BUFFER]]) : (tensor<!tf_type.resource<tensor<10x2xi32>>>) -> tensor<10x2xi32>
  // CHECK-NEXT: %[[STACK_SIZE:.*]] = "tf.ReadVariableOp"(%[[SIZE]]) : (tensor<!tf_type.resource<tensor<1xi32>>>) -> tensor<1xi32>
  // CHECK-NEXT: %[[UPDATE_SHAPE:.*]] = "tf.Const"() <{value = dense<[1, 2]> : tensor<2xi32>}> : () -> tensor<2xi32>

	}

	param := thrparam{
		start_func: abi.FuncPCABI0(thr_start),
		arg:        unsafe.Pointer(mp),
		stack_base: mp.g0.stack.lo,
		stack_size: uintptr(stk) - mp.g0.stack.lo,
		child_tid:  nil, // minit will record tid
		parent_tid: nil,
		tls_base:   unsafe.Pointer(&mp.tls[0]),
		tls_size:   unsafe.Sizeof(mp.tls),
	}

	var oset sigset