TensorShape x_shape({1, 2, 3});
  std::vector<Output> xs;
  xs.push_back(Placeholder(scope_, DT_FLOAT, Placeholder::Shape(x_shape)));
  xs.push_back(Placeholder(scope_, DT_FLOAT, Placeholder::Shape(x_shape)));
  auto y = Stack(scope_, xs, Stack::Axis(1));
  TensorShape y_shape({1, 2, 2, 3});
  RunTest(xs, {x_shape, x_shape}, {y}, {y_shape});
}

TEST_F(ArrayGradTest, UnstackGrad_Axis0) {
  TensorShape x_shape({4, 2, 3});

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	SYS___ERF_B                         = 0x4C4 // 1220
	SYS___ERFC_B                        = 0x4C5 // 1221
	SYS___EXPM1_B                       = 0x4C6 // 1222
	SYS___FABS_B                        = 0x4C7 // 1223
	SYS_FINITE                          = 0x4C8 // 1224
	SYS___FLOOR_B                       = 0x4C9 // 1225
	SYS___FREXP_B                       = 0x4CA // 1226
	SYS___ILOGB_B                       = 0x4CB // 1227

stderr '^go: m1_22_0'${/}'go.mod requires go >= 1.22.0 \(running go 1.21; GOTOOLCHAIN=local\)$'
env GOTOOLCHAIN=auto
go work use ./m1_22_0
stderr '^go: m1_22_0'${/}'go.mod requires go >= 1.22.0; switching to go1.22.9$'
grep '^go 1.22.0$' go.work
grep '^toolchain go1.22.9$' go.work

# work use with an even newer module should bump go again.
go work use ./m1_22_1
! stderr switching
grep '^go 1.22.1$' go.work

stderr '^go: cannot load module m1_22_1 listed in go.work file: m1_22_1'${/}'go.mod requires go >= 1.22.1 \(running go 1.21; GOTOOLCHAIN=local\)$'
env GOTOOLCHAIN=auto
go work sync
stderr '^go: m1_22_1'${/}'go.mod requires go >= 1.22.1; switching to go1.22.9$'
grep '^go 1.22.1$' go.work
grep '^toolchain go1.22.9$' go.work

// 12: 9 | fib(x - 1) - fib(x - 2) | value   : int
// 12:13 | x                   | var     : int
// 12:13 | x - 1               | value   : int
// 12:15 | 1                   | value   : int = 1
// 12:20 | fib                 | value   : func(x int) int
// 12:20 | fib(x - 2)          | value   : int
// 12:24 | x                   | var     : int
// 12:24 | x - 2               | value   : int

...

  - [Changelog since v1.22.3](#changelog-since-v1223)
  - [Changes by Kind](#changes-by-kind-12)
    - [Feature](#feature-5)
    - [Failing Test](#failing-test)
    - [Bug or Regression](#bug-or-regression-12)
  - [Dependencies](#dependencies-13)
    - [Added](#added-13)
    - [Changed](#changed-13)
    - [Removed](#removed-13)
- [v1.22.3](#v1223)
  - [Downloads for v1.22.3](#downloads-for-v1223)

	1222: {region: 0x36, script: 0x5b, flags: 0x0},
	1223: {region: 0x61, script: 0x5b, flags: 0x0},
	1224: {region: 0xd2, script: 0x5b, flags: 0x0},
	1225: {region: 0x1, script: 0x5b, flags: 0x0},
	1226: {region: 0x107, script: 0x5b, flags: 0x0},
	1227: {region: 0x6b, script: 0x5b, flags: 0x0},
	1228: {region: 0x130, script: 0x5b, flags: 0x0},
	1229: {region: 0x166, script: 0x5b, flags: 0x0},

	// 12: 9 | fib(x-1) - fib(x-2) | value   : int
	// 12:13 | x                   | var     : int
	// 12:13 | x - 1               | value   : int
	// 12:15 | 1                   | value   : int = 1
	// 12:20 | fib                 | value   : func(x int) int
	// 12:20 | fib(x - 2)          | value   : int
	// 12:24 | x                   | var     : int
	// 12:24 | x - 2               | value   : int