base.Fatalf("funcStack is non-empty: %v", len(funcStack))
	}
}

// make a new Node off the books.
func TempAt(pos src.XPos, curfn *ir.Func, typ *types.Type) *ir.Name {
	if curfn == nil {
		base.FatalfAt(pos, "no curfn for TempAt")
	}
	if typ == nil {
		base.FatalfAt(pos, "TempAt called with nil type")
	}
	if typ.Kind() == types.TFUNC && typ.Recv() != nil {
		base.FatalfAt(pos, "misuse of method type: %v", typ)

	}
	n.Rhs = []ir.Node{call}
	n.SetOp(ir.OAS2FUNC)

	// don't generate a = *var if a is _
	if ir.IsBlank(a) {
		return walkExpr(typecheck.Stmt(n), init)
	}

	var_ := typecheck.TempAt(base.Pos, ir.CurFunc, types.NewPtr(t.Elem()))
	var_.SetTypecheck(1)
	var_.MarkNonNil() // mapaccess always returns a non-nil pointer

	n.Lhs[0] = var_
	init.Append(walkExpr(n, init))

	if s.hasOpenDefers {
		// Create the deferBits variable and stack slot.  deferBits is a
		// bitmask showing which of the open-coded defers in this function
		// have been activated.
		deferBitsTemp := typecheck.TempAt(src.NoXPos, s.curfn, types.Types[types.TUINT8])
		deferBitsTemp.SetAddrtaken(true)
		s.deferBitsTemp = deferBitsTemp
		// For this value, AuxInt is initialized to zero by default

	var init []ir.Node

	// generate sel-struct
	base.Pos = sellineno
	selv := typecheck.TempAt(base.Pos, ir.CurFunc, types.NewArray(scasetype(), int64(ncas)))
	init = append(init, typecheck.Stmt(ir.NewAssignStmt(base.Pos, selv, nil)))

	// No initialization for order; runtime.selectgo is responsible for that.
	order := typecheck.TempAt(base.Pos, ir.CurFunc, types.NewArray(types.Types[types.TUINT16], 2*int64(ncas)))

	var pc0, pcs ir.Node

// allocated temporary variable of the given type. Statements to
// zero-initialize tmp are appended to init.
func stackTempAddr(init *ir.Nodes, typ *types.Type) *ir.AddrExpr {
	n := typecheck.TempAt(base.Pos, ir.CurFunc, typ)
	n.SetNonMergeable(true)
	return initStackTemp(init, n, nil)
}

// stackBufAddr returns the expression &tmp, where tmp is a newly

	// TODO(khr): assign these temps in order phase so we can reuse them across multiple maplits?
	tmpkey := typecheck.TempAt(base.Pos, ir.CurFunc, m.Type().Key())
	tmpelem := typecheck.TempAt(base.Pos, ir.CurFunc, m.Type().Elem())

	for _, r := range entries {
		r := r.(*ir.KeyExpr)
		index, elem := r.Key, r.Value

		ir.SetPos(index)

		l.SetTypecheck(n.Typecheck())
		return l
	}
	if fromType.IsEmptyInterface() {
		base.Fatalf("OCONVIFACE can't operate on an empty interface")
	}

	// Evaluate the input interface.
	c := typecheck.TempAt(base.Pos, ir.CurFunc, fromType)
	init.Append(ir.NewAssignStmt(base.Pos, c, n.X))

	if toType.IsEmptyInterface() {
		// Implement interface to empty interface conversion:
		//
		// var res *uint8

						next = append(next, embeddedType{typ, concat(e.index, i), e.indirect || isPtr, e.multiples})
					}
				}

			case *Interface:
				// look for a matching method (interface may be a type parameter)
				if i, m := t.typeSet().LookupMethod(pkg, name, foldCase); m != nil {
					assert(m.typ != nil)
					index = concat(e.index, i)
					if obj != nil || e.multiples {

	s.srcName = sw.Tag.(*ir.TypeSwitchGuard).X
	s.srcName = walkExpr(s.srcName, sw.PtrInit())
	s.srcName = copyExpr(s.srcName, s.srcName.Type(), &sw.Compiled)
	s.okName = typecheck.TempAt(base.Pos, ir.CurFunc, types.Types[types.TBOOL])
	s.itabName = typecheck.TempAt(base.Pos, ir.CurFunc, types.Types[types.TUINT8].PtrTo())

	// Get interface descriptor word.
	// For empty interfaces this will be the type.

		goFlag := ""
		if goVersion != MainModules.GoVersion() {
			goFlag = " -go=" + goVersion
		}

		compatFlag := ""
		if compatVersion != gover.Prev(goVersion) {
			compatFlag = " -compat=" + compatVersion
		}
		if suggestUpgrade {
			eDesc := ""
			eFlag := ""
			if suggestEFlag {
				eDesc = ", leaving some packages unresolved"
				eFlag = " -e"
			}