node := work[len(work)-1]
		work = work[:len(work)-1]

		switch node.op {
		case Work:
			b := node.block

			// First, see if we're dominated by an explicit nil check.
			if len(b.Preds) == 1 {
				p := b.Preds[0].b
				if p.Kind == BlockIf && p.Controls[0].Op == OpIsNonNil && p.Succs[0].b == b {
					if ptr := p.Controls[0].Args[0]; nonNilValues[ptr.ID] == nil {
						nonNilValues[ptr.ID] = ptr

//		do something
//	      nxt = inc + ind
//		goto loop
//
//	 exit_loop:
func findIndVar(f *Func) []indVar {
	var iv []indVar
	sdom := f.Sdom()

	for _, b := range f.Blocks {
		if b.Kind != BlockIf || len(b.Preds) != 2 {
			continue
		}

		var ind *Value   // induction variable
		var init *Value  // starting value
		var limit *Value // ending value

		// Check that the control if it either ind </<= limit or limit </<= ind.

        p.configure { }

        then:
        def e = thrown(IllegalStateException)
        e.message == 'Cannot add actions to this collection as it has already been realized.'
    }

    def "fires finalize event for element with name after configuration has completed"() {
        def action1 = Mock(Action)
        def action2 = Mock(Action)
        def finalAction = Mock(Action)
        def binary1 = Stub(SwiftBinary)

	config := b.Func.Config
	typ := config.Types.Uintptr // type of all argument values
	nargs := len(args)

	// TODO (register args) this is a bit of a hack.
	inRegs := b.Func.ABIDefault == b.Func.ABI1 && len(config.intParamRegs) >= 3

	if !inRegs {
		// Store arguments to the appropriate stack slot.
		off := config.ctxt.Arch.FixedFrameSize
		for _, arg := range args {

		if len(args) == 0 {
			args = append(args, "st0")
		}

	case FPTAN, FSINCOS, FUCOMPP, FCOMPP, FYL2X, FPATAN, FXTRACT, FPREM1, FPREM, FYL2XP1, FSCALE:
		if len(args) == 0 {
			args = []string{"st0", "st1"}
		}

	case FST, FSTP, FISTTP, FIST, FISTP, FBSTP:
		if len(args) == 1 {
			args = append(args, "st0")
		}

	"FMOVL",
	"FMOVLP",
	"FMOVV",
	"FMOVVP",
	"FMOVW",
	"FMOVWP",
	"FMOVX",
	"FMOVXP",
	"FMULD",
	"FMULDP",
	"FMULF",
	"FMULL",
	"FMULW",
	"FNOP",
	"FPATAN",
	"FPREM",
	"FPREM1",
	"FPTAN",
	"FRNDINT",
	"FRSTOR",
	"FSAVE",
	"FSCALE",
	"FSIN",
	"FSINCOS",
	"FSQRT",
	"FSTCW",
	"FSTENV",
	"FSTSW",
	"FSUBD",
	"FSUBDP",
	"FSUBF",
	"FSUBL",

func TestGetArticleForNoun(t *testing.T) {
	tests := []struct {
		noun    string
		padding string
		want    string
	}{
		{
			noun:    "Frog",
			padding: " ",
			want:    " a ",
		},
		{
			noun:    "frogs",
			padding: " ",
			want:    " ",
		},
		{
			noun:    "apple",
			padding: "",
			want:    "an",
		},
		{
			noun:    "Apples",
			padding: " ",
			want:    " ",
		},
		{

    }
  }
}

/**
 * Attempts to exhaust this, returning true if successful. This is useful when reading a complete
 * source is helpful, such as when doing so completes a cache body or frees a socket connection for
 * reuse.
 */
internal fun Source.discard(
  timeout: Int,
  timeUnit: TimeUnit,
): Boolean =
  try {
    this.skipAll(timeout, timeUnit)
  } catch (_: IOException) {

	if cleanFuzzcache {
		fuzzDir := cache.Default().FuzzDir()
		if err := sh.RemoveAll(fuzzDir); err != nil {
			base.Error(err)
		}
	}
}

var cleaned = map[*load.Package]bool{}

// TODO: These are dregs left by Makefile-based builds.
// Eventually, can stop deleting these.
var cleanDir = map[string]bool{
	"_test": true,
	"_obj":  true,
}

var cleanFile = map[string]bool{
	"_testmain.go": true,

}

func PtracePokeText(pid int, addr uintptr, data []byte) (count int, err error) {
	return PtraceIO(PIOD_WRITE_I, pid, addr, data, SizeofLong)
}

func PtraceSetRegs(pid int, regs *Reg) (err error) {
	return ptracePtr(PT_SETREGS, pid, unsafe.Pointer(regs), 0)
}

func PtraceSingleStep(pid int) (err error) {
	return ptrace(PT_STEP, pid, 1, 0)
}

func Dup3(oldfd, newfd, flags int) error {