R16
	R17
	R18
	R19
	R20
	R21
	R22
	R23
	R24
	R25
	R26
	R27
	R28
	R29
	R30
	R31
	F0
	F1
	F2
	F3
	F4
	F5
	F6
	F7
	F8
	F9
	F10
	F11
	F12
	F13
	F14
	F15
	F16
	F17
	F18
	F19
	F20
	F21
	F22
	F23
	F24
	F25
	F26
	F27
	F28
	F29
	F30
	F31
	V0 // VSX extension, F0 is V0[0:63].

	"R6",
	"R7",
	"R8",
	"R9",
	"R10",
	"R11",
	"R12",
	"R13",
	"R14",
	"R15",

	"F0",
	"F1",
	"F2",
	"F3",
	"F4",
	"F5",
	"F6",
	"F7",
	"F8",
	"F9",
	"F10",
	"F11",
	"F12",
	"F13",
	"F14",
	"F15",

	"F16",
	"F17",
	"F18",
	"F19",
	"F20",
	"F21",
	"F22",
	"F23",
	"F24",
	"F25",
	"F26",
	"F27",
	"F28",
	"F29",
	"F30",
	"F31",

	CLFEBR	F15, R1                // b39c501f
	CLFDBR	F14, R2                // b39d502e
	CLGEBR	F13, R3                // b3ac503d
	CLGDBR	F12, R4                // b3ad504c

	FMOVS	$0, F11                // b37400b0
	FMOVD	$0, F12                // b37500c0
	FMOVS	(R1)(R2*1), F0         // 78021000
	FMOVS	n-8(SP), F15           // 78f0f010
	FMOVD	-9999999(R8)(R9*1), F8 // c0a1ff67698141aa9000688a8000

	y := x[:] // ERROR "removed nil check"
	return y
}

// See issue 42673.
func f10(p **int) int {
	return * // ERROR "removed nil check"
	/* */
	*p // ERROR "removed nil check"
}

func f11(x []byte) {
	p := (*[0]byte)(x)
	_ = *p // ERROR "generated nil check"
	q := (*[4]byte)(x)
	_ = *q // ERROR "removed nil check"

	z[i] = y // ERROR "write barrier"
	i++
	return z[:i]
}

func f9(x *interface{}, v *byte) {
	*x = v // ERROR "write barrier"
}

func f10(x *byte, f func(interface{})) {
	f(x)
}

func f11(x *unsafe.Pointer, y unsafe.Pointer) {
	*x = unsafe.Pointer(uintptr(y) + 1) // ERROR "write barrier"
}

func f12(x []*int, y *int) []*int {
	// write barrier for storing y in x's underlying array

	{"F0", "F0"},
	{"F1", "F1"},
	{"F2", "F2"},
	{"F3", "F3"},
	{"F4", "F4"},
	{"F5", "F5"},
	{"F6", "F6"},
	{"F7", "F7"},
	{"F8", "F8"},
	{"F9", "F9"},
	{"F10", "F10"},
	{"F11", "F11"},
	{"F12", "F12"},
	{"F13", "F13"},
	{"F14", "F14"},
	{"F15", "F15"},
	{"V0", "V0"},
	{"V1", "V1"},
	{"V2", "V2"},
	{"V3", "V3"},
	{"V4", "V4"},
	{"V5", "V5"},
	{"V6", "V6"},

		// an element in a struct, with a type conversion.
		name:    "sliceok4",
		c:       `typedef void* PV11; void f11(PV11 p) {}`,
		imports: []string{"unsafe"},
		support: `type S11 struct { p *int; a [4]byte }`,
		body:    `i := 0; p := &S11{p:&i}; C.f11(C.PV11(unsafe.Pointer(&p.a[0])))`,
		fail:    false,
	},
	{
		// Passing the address of a static variable with no
		// pointers doesn't matter.

	// R28 = REGSB not used in regalloc
	"SP",  // aka R29
	"g",   // aka R30
	"R31", // aka REGLINK

	"F0",
	"F1",
	"F2",
	"F3",
	"F4",
	"F5",
	"F6",
	"F7",
	"F8",
	"F9",
	"F10",
	"F11",
	"F12",
	"F13",
	"F14",
	"F15",
	"F16",
	"F17",
	"F18",
	"F19",
	"F20",
	"F21",
	"F22",
	"F23",
	"F24",
	"F25",
	"F26",
	"F27",
	"F28",
	"F29",
	"F30",
	"F31",

  private static final ImmutableSet<String> VALID_NAME =
      ImmutableSet.of(
          "foo.com",
          "f-_-o.cOM",
          "f--1.com",
          "f11-1.com",
          "www",
          "abc.a23",
          "biz.com.ua",
          "x",
          "fOo",
          "f--o",
          "f_a",
          "foo.net.us\uFF61ocm",
          "woo.com.",

        assertEquals("01", webConfig.getId());
        assertTrue(webConfig instanceof WebConfig);
        final CrawlingConfig fileConfig = crawlingConfigHelper.getCrawlingConfig("F11");
        assertEquals("11", fileConfig.getId());
        assertTrue(fileConfig instanceof FileConfig);
        final CrawlingConfig dataConfig = crawlingConfigHelper.getCrawlingConfig("D21");