b0 := NewWriterSize(&w0, 1234)
	b0.WriteString(strings.Repeat("x", 1000))
	if w0 != 0 {
		t.Fatalf("write 1000 'x's: got %d writes, want 0", w0)
	}
	b0.WriteString(strings.Repeat("x", 200))
	if w0 != 0 {
		t.Fatalf("write 1200 'x's: got %d writes, want 0", w0)
	}
	io.Copy(b0, onlyReader{strings.NewReader(strings.Repeat("x", 30))})
	if w0 != 0 {

func TestRepeat(t *testing.T) {
	for _, tt := range RepeatTests {
		tin := []byte(tt.in)
		tout := []byte(tt.out)
		a := Repeat(tin, tt.count)
		if !Equal(a, tout) {
			t.Errorf("Repeat(%q, %d) = %q; want %q", tin, tt.count, a, tout)
			continue
		}
	}
}

func repeat(b []byte, count int) (err error) {
	defer func() {
		if r := recover(); r != nil {
			switch v := r.(type) {
			case error:

			// type and source locations of constant strings)
			// like the second arg in the call below:
			//
			//     myfunction(42, "foo")
			//
			// If a var has no name we won't see attempts to
			// refer to it via "C.<name>", so skip these vars
			//
			// See issue 53000 for more context.
			if name == "" {
				break
			}
			typOff, _ := e.Val(dwarf.AttrType).(dwarf.Offset)
			if typOff == 0 {

	MSR	R4, PMXEVTYPER_EL0                 // 249d1bd5
	MRS	REVIDR_EL1, R29                    // dd0038d5
	MRS	RMR_EL1, R4                        // 44c038d5
	MSR	R0, RMR_EL1                        // 40c018d5
	MRS	RVBAR_EL1, R7                      // 27c038d5
	MRS	SCTLR_EL1, R8                      // 081038d5
	MSR	R0, SCTLR_EL1                      // 001018d5
	MRS	SCTLR_EL1, R30                     // 1e1038d5