})

	// Test ios/amd64 for the iOS simulator.
	if goos == "darwin" && goarch == "amd64" && t.cgoEnabled {
		t.registerTest("GOOS=ios on darwin/amd64",
			&goTest{
				variant:  "amd64ios",
				timeout:  300 * time.Second,
				runTests: "SystemRoots",
				env:      []string{"GOOS=ios", "CGO_ENABLED=1"},
				pkg:      "crypto/x509",
			})
	}

	// GOEXPERIMENT=rangefunc tests

		fpstore    = regInfo{inputs: []regMask{gpspsb, fp, 0}}
		fpstoreidx = regInfo{inputs: []regMask{gpspsb, gpsp, fp, 0}}

		prefreg = regInfo{inputs: []regMask{gpspsbg}}
	)

	var AMD64ops = []opData{
		// {ADD,SUB,MUL,DIV}Sx: floating-point arithmetic
		// x==S for float32, x==D for float64
		// computes arg0 OP arg1