defer func() {
		text := "panic while printing panic value"
		switch r := recover().(type) {
		case nil:
			// nothing to do
		case string:
			throw(text + ": " + r)
		default:
			throw(text + ": type " + toRType(efaceOf(&r)._type).string())
		}
	}()
	for p != nil {
		switch v := p.arg.(type) {
		case error:
			p.arg = v.Error()
		case stringer:
			p.arg = v.String()
		}

const UserArenaChunkBytes = userArenaChunkBytes

type UserArena struct {
	arena *userArena
}

func NewUserArena() *UserArena {
	return &UserArena{newUserArena()}
}

func (a *UserArena) New(out *any) {
	i := efaceOf(out)
	typ := i._type
	if typ.Kind_&abi.KindMask != abi.Pointer {
		panic("new result of non-ptr type")
	}
	typ = (*ptrtype)(unsafe.Pointer(typ)).Elem

// only in a very limited callee of reflectcall, the stackArgs are copied, and
// regArgs is only used in the reflectcall frame.
//
//go:noescape
func reflectcall(stackArgsType *_type, fn, stackArgs unsafe.Pointer, stackArgsSize, stackRetOffset, frameSize uint32, regArgs *abi.RegArgs)

// procyield should be an internal detail,
// but widely used packages access it using linkname.

Go struct types are not supported; use a C struct type.
Go array types are not supported; use a C pointer.

Go functions that take arguments of type string may be called with the
C type _GoString_, described above. The _GoString_ type will be
automatically defined in the preamble. Note that there is no way for C
code to create a value of this type; this is only useful for passing
string values from Go to C and back to Go.

	}
	keyPEM := pem.EncodeToMemory(&pem.Block{Type: "PRIVATE KEY", Bytes: keyDER})
	tmpl := &x509.Certificate{
		SerialNumber: big.NewInt(1),
		Subject:      pkix.Name{CommonName: "test"},
	}
	certDER, err := x509.CreateCertificate(rand.Reader, tmpl, tmpl, key.Public(), key)
	if err != nil {
		t.Fatal(err)
	}
	certPEM := pem.EncodeToMemory(&pem.Block{Type: "CERTIFICATE", Bytes: certDER})

	FLDPD	(26*8)(R20), (F10, F11)
	FLDPD	(28*8)(R20), (F12, F13)
	FLDPD	(30*8)(R20), (F14, F15)
	RET

// reflectcall: call a function with the given argument list
// func call(stackArgsType *_type, f *FuncVal, stackArgs *byte, stackArgsSize, stackRetOffset, frameSize uint32, regArgs *abi.RegArgs).
// we don't have variable-sized frames, so we use a small number

			if pname, ptype := extractName(x, p.tok == _Comma); pname != nil && (ptype != nil || p.tok != _Rbrack) {
				// d.Name "[" pname ...
				// d.Name "[" pname ptype ...
				// d.Name "[" pname ptype "," ...
				d.TParamList = p.paramList(pname, ptype, _Rbrack, true) // ptype may be nil
				d.Alias = p.gotAssign()
				d.Type = p.typeOrNil()
			} else {
				// d.Name "[" pname "]" ...
				// d.Name "[" x ...

	return f
}

// A TypeInfo contains information for a symbol
// that contains a runtime._type.
type TypeInfo struct {
	Type interface{} // a *cmd/compile/internal/types.Type
}

func (s *LSym) NewTypeInfo() *TypeInfo {
	if s.Extra != nil {
		panic(fmt.Sprintf("invalid use of LSym - NewTypeInfo with Extra of type %T", *s.Extra))
	}
	t := new(TypeInfo)
	s.Extra = new(interface{})
	*s.Extra = t
	return t

	return
}

var methodValueCallFrameObjs [1]stackObjectRecord // initialized in stackobjectinit

func stkobjinit() {
	var abiRegArgsEface any = abi.RegArgs{}
	abiRegArgsType := efaceOf(&abiRegArgsEface)._type
	if abiRegArgsType.Kind_&abi.KindGCProg != 0 {
		throw("abiRegArgsType needs GC Prog, update methodValueCallFrameObjs")
	}
	// Set methodValueCallFrameObjs[0].gcdataoff so that

	if !ptr.Type.IsPtr() || !types.Identical(n.Type(), ptr.Type.Elem()) {
		base.FatalfAt(n.Pos(), "setHeapaddr %L with type %v", n, ptr.Type)
	}

	// Declare variable to hold address.
	sym := &types.Sym{Name: "&" + n.Sym().Name, Pkg: types.LocalPkg}
	addr := s.curfn.NewLocal(pos, sym, types.NewPtr(n.Type()))
	addr.SetUsed(true)
	types.CalcSize(addr.Type())

	if n.Class == ir.PPARAMOUT {