buildCacheKey == thirdBuildCacheKey
        }
    }

    def "tracks different tasks"() {
        given:
        buildScript """
            def w1 = tasks.create("w1", WriteProperties) {
                destinationFile = file("w1.properties")
                properties = [v: 1]
            }
            def w2 = tasks.create("w2", WriteProperties) {
                destinationFile = file("w2.properties")

	MOVL x+12(FP), SI
	MOVL s+24(FP), CX
	MOVL (SI)(BX*4), AX	// w1 = x[n-1]
	MOVL $0, DX
	SHLL CX, AX, DX		// w1>>ŝ
	MOVL DX, c+28(FP)

	CMPL BX, $0
	JLE X8a			// i <= 0

	// i > 0
L8:	MOVL AX, DX		// w = w1
	MOVL -4(SI)(BX*4), AX	// w1 = x[i-1]
	SHLL CX, AX, DX		// w<<s | w1>>ŝ
	MOVL DX, (DI)(BX*4)	// z[i] = w<<s | w1>>ŝ
	SUBL $1, BX		// i--
	JG L8			// i > 0

	// i <= 0

	return x + y*z
}

func main() {
	w, x, y := 1.0, 1.0, 1.0
	x = f(x + x/(1<<52))
	w = f(w / (1 << 27))
	y = f(y + y/(1<<52))
	w0 := f(2 * w * (1 - w))
	w1 := f(w * (1 + w))
	x = x + w0*w1
	x = inlineFma(x, w0, w1)
	y = y + f(w0*w1)
	y = y + f(w0*w1)
	fmt.Println(x, y, x-y)

	if x != y {
		os.Exit(1)
	}

func Mul64(x, y uint64) (hi, lo uint64) {
	const mask32 = 1<<32 - 1
	x0 := x & mask32
	x1 := x >> 32
	y0 := y & mask32
	y1 := y >> 32
	w0 := x0 * y0
	t := x1*y0 + w0>>32
	w1 := t & mask32
	w2 := t >> 32
	w1 += x0 * y1
	hi = x1*y1 + w2 + w1>>32
	lo = x * y
	return
}

// Add64 returns the sum with carry of x, y and carry: sum = x + y + carry.
// The carry input must be 0 or 1; otherwise the behavior is undefined.

	MOVQ x+24(FP), R8
	MOVQ s+48(FP), CX
	MOVQ (R8)(BX*8), AX	// w1 = x[n-1]
	MOVQ $0, DX
	SHLQ CX, AX, DX		// w1>>ŝ
	MOVQ DX, c+56(FP)

	CMPQ BX, $0
	JLE X8a			// i <= 0

	// i > 0
L8:	MOVQ AX, DX		// w = w1
	MOVQ -8(R8)(BX*8), AX	// w1 = x[i-1]
	SHLQ CX, AX, DX		// w<<s | w1>>ŝ
	MOVQ DX, (R10)(BX*8)	// z[i] = w<<s | w1>>ŝ
	SUBQ $1, BX		// i--
	JG L8			// i > 0

	// i <= 0

# GO111MODULE=on in GOPATH/src
cd $GOPATH/src
env GO111MODULE=
exec $WORK/testimport$GOEXE gobuild.example.com/x/y/z/w .
stdout w1.go
env GO111MODULE=on
exec $WORK/testimport$GOEXE gobuild.example.com/x/y/z/w .
stdout w1.go
cd w
exec $WORK/testimport$GOEXE gobuild.example.com/x/y/z/w ..
stdout w1.go

# go/build's Import in FindOnly mode should find directories by invoking the go command
#

func (V1) n() {}

// alias receiver types (invalid due to cycles)
type (
	W0 /* ERROR "invalid recursive type" */ = W1
	W1 = (W2)
	W2 = ((W0))
)

func (W0) m() {} // no error expected (due to above cycle error)
func (W1) n() {}

// alias receiver types (invalid due to builtin underlying type)
type (
	B0 = B1
	B1 = B2
	B2 = int
)

replace (
	example.net/w v0.1.0 => ./w1
	example.net/w v0.2.0-pre => ./w2-pre
	example.net/x v0.1.0 => ./x1
	example.net/x v0.2.0-pre => ./x2-pre
	example.net/y v0.1.0 => ./y1
	example.net/y v0.2.0-pre => ./y2-pre
	example.net/z v0.1.0 => ./z1
	example.net/z v0.2.0-pre => ./z2-pre
)
-- w1/go.mod --
module example.net/w

go 1.16

require (
	example.net/y v0.2.0-pre
	example.net/z v0.2.0-pre
)

// CHECK-LABEL: strips_attributes
// CHECK-NOT: tf
func.func @strips_attributes(%arg0: tensor<32x28x28x1xf32> {tf._user_specified_name = "x"},
                             %arg1: tensor<3x3x1x5xf32> {tf._user_specified_name = "w1"},
                             %arg2: tensor<5xf32> {tf._user_specified_name = "b1"},
                             %arg3: tensor<3920x10xf32> {tf._user_specified_name = "w2"},

	ServeConn(srv)                                                    // must return, not loop
}

// Copied from package net.
func myPipe() (*pipe, *pipe) {
	r1, w1 := io.Pipe()
	r2, w2 := io.Pipe()

	return &pipe{r1, w2}, &pipe{r2, w1}
}

type pipe struct {
	*io.PipeReader
	*io.PipeWriter
}

type pipeAddr int

func (pipeAddr) Network() string {
	return "pipe"
}