fn := mapfn(mapaccess2[fast], t, false)
		call = mkcall1(fn, fn.Type().ResultsTuple(), init, reflectdata.IndexMapRType(base.Pos, r), r.X, key)
	} else {
		fn := mapfn("mapaccess2_fat", t, true)
		z := reflectdata.ZeroAddr(w)
		call = mkcall1(fn, fn.Type().ResultsTuple(), init, reflectdata.IndexMapRType(base.Pos, r), r.X, key, z)
	}

	// mapaccess2* returns a typed bool, but due to spec changes,

	var mapFn ir.Node
	switch {
	case n.Assigned:
		mapFn = mapfn(mapassign[fast], t, false)
	case t.Elem().Size() > abi.ZeroValSize:
		args = append(args, reflectdata.ZeroAddr(t.Elem().Size()))
		mapFn = mapfn("mapaccess1_fat", t, true)
	default:
		mapFn = mapfn(mapaccess1[fast], t, false)
	}
	call := mkcall1(mapFn, nil, init, args...)
	call.SetType(types.NewPtr(t.Elem()))