{"false", UntypedBool, constant.MakeBool(false)},
	{"iota", UntypedInt, constant.MakeInt64(0)},
}

func defPredeclaredConsts() {
	for _, c := range predeclaredConsts {
		def(NewConst(nopos, nil, c.name, Typ[c.kind], c.val))
	}
}

func defPredeclaredNil() {
	def(&Nil{object{name: "nil", typ: Typ[UntypedNil], color_: black}})
}

// A builtinId is the id of a builtin function.

		return true
	}
	// match: (SGTconst [c] (MOVBreg _))
	// cond: 0x7f < c
	// result: (MOVVconst [1])
	for {
		c := auxIntToInt64(v.AuxInt)
		if v_0.Op != OpLOONG64MOVBreg || !(0x7f < c) {
			break
		}
		v.reset(OpLOONG64MOVVconst)
		v.AuxInt = int64ToAuxInt(1)
		return true
	}
	// match: (SGTconst [c] (MOVBreg _))
	// cond: c <= -0x80
	// result: (MOVVconst [0])
	for {

// A Const represents a declared constant.
type Const struct {
	object
	val constant.Value
}

// NewConst returns a new constant with value val.
// The remaining arguments set the attributes found with all Objects.
func NewConst(pos syntax.Pos, pkg *Package, name string, typ Type, val constant.Value) *Const {
	return &Const{object{nil, pos, pkg, name, typ, 0, colorFor(typ), nopos}, val}
}

	if !f && n.isGenericIntConst() {
		po.newconst(n)
		i, f = po.values[n.ID]
	}
	return i, f
}

// newconst creates a node for a constant. It links it to other constants, so
// that n<=5 is detected true when n<=3 is known to be true.
// TODO: this is O(N), fix it.
func (po *poset) newconst(n *Value) {
	if !n.isGenericIntConst() {
		panic("newconst on non-constant")
	}

// A Const represents a declared constant.
type Const struct {
	object
	val constant.Value
}

// NewConst returns a new constant with value val.
// The remaining arguments set the attributes found with all Objects.
func NewConst(pos token.Pos, pkg *Package, name string, typ Type, val constant.Value) *Const {
	return &Const{object{nil, pos, pkg, name, typ, 0, colorFor(typ), nopos}, val}
}

		return true
	}
	// match: (SGTconst [c] (MOVBreg _))
	// cond: 0x7f < c
	// result: (MOVVconst [1])
	for {
		c := auxIntToInt64(v.AuxInt)
		if v_0.Op != OpMIPS64MOVBreg || !(0x7f < c) {
			break
		}
		v.reset(OpMIPS64MOVVconst)
		v.AuxInt = int64ToAuxInt(1)
		return true
	}
	// match: (SGTconst [c] (MOVBreg _))
	// cond: c <= -0x80
	// result: (MOVVconst [0])
	for {

	fninfo := ls.Func()
	fninfo.GCArgs, fninfo.GCLocals = lv.emit()

	p := pp.Prog(obj.AFUNCDATA)
	p.From.SetConst(rtabi.FUNCDATA_ArgsPointerMaps)
	p.To.Type = obj.TYPE_MEM
	p.To.Name = obj.NAME_EXTERN
	p.To.Sym = fninfo.GCArgs

	p = pp.Prog(obj.AFUNCDATA)
	p.From.SetConst(rtabi.FUNCDATA_LocalsPointerMaps)
	p.To.Type = obj.TYPE_MEM
	p.To.Name = obj.NAME_EXTERN
	p.To.Sym = fninfo.GCLocals

	v_0 := v.Args[0]
	// match: (SLWconst [s] (MOVWZreg w))
	// result: (SLWconst [s] w)
	for {
		s := auxIntToInt64(v.AuxInt)
		if v_0.Op != OpPPC64MOVWZreg {
			break
		}
		w := v_0.Args[0]
		v.reset(OpPPC64SLWconst)
		v.AuxInt = int64ToAuxInt(s)
		v.AddArg(w)
		return true
	}
	// match: (SLWconst [c] z:(MOVBZreg x))
	// cond: z.Uses == 1 && c < 8

		return true
	}
	// match: (SUBconst (MOVDconst [d]) [c])
	// result: (MOVDconst [d-int64(c)])
	for {
		c := auxIntToInt32(v.AuxInt)
		if v_0.Op != OpS390XMOVDconst {
			break
		}
		d := auxIntToInt64(v_0.AuxInt)
		v.reset(OpS390XMOVDconst)
		v.AuxInt = int64ToAuxInt(d - int64(c))
		return true
	}
	// match: (SUBconst (SUBconst x [d]) [c])
	// cond: is32Bit(-int64(c)-int64(d))

			if val&mask == val || (val>>(shift+16) == -1 && (val>>shift)<<shift == val) {
				// Rewrite this value into MOVD $const>>shift, Rto; SLD $shift, Rto
				q := obj.Appendp(p, c.newprog)
				q.As = ASLD
				q.From.SetConst(int64(shift))
				q.To = p.To
				p.From.Offset >>= shift
				p = q
			} else if isPPC64DoublewordRotateMask(val) {
				// This constant is a mask value, generate MOVD $-1, Rto; RLDIC Rto, ^me, mb, Rto