procedure List.18 (List.160, List.161, List.162):
    let List.575 : U64 = 0i64;
    let List.576 : U64 = CallByName List.6 List.160;
    let List.574 : [<r>C {}, C *self {{}, []}] = CallByName List.92 List.160 List.161 List.162 List.575 List.576;
    ret List.574;

procedure List.6 (#Attr.2):
    let List.585 : U64 = lowlevel ListLenU64 #Attr.2;
    ret List.585;

procedure List.66 (#Attr.2, #Attr.3):
    let List.584 : [] = lowlevel ListGetUnsafe #Attr.2 #Attr.3;
    ret List.584;

procedure List.92 (#Derived_gen.11, #Derived_gen.12, #Derived_gen.13, #Derived_gen.14, #Derived_gen.15):
    joinpoint List.577 List.163 List.164 List.165 List.166 List.167:
        let List.579 : Int1 = CallByName Num.22 List.166 List.167;
        if List.579 then
            let List.583 : [] = CallByName List.66 List.163 List.166;
            let List.168 : [<r>C {}, C *self {{}, []}] = CallByName Test.29 List.164 List.583 List.165;
            let List.582 : U64 = 1i64;
            let List.581 : U64 = CallByName Num.51 List.166 List.582;
            jump List.577 List.163 List.168 List.165 List.581 List.167;
        else
            dec List.163;
            ret List.164;
    in
    inc #Derived_gen.11;
    jump List.577 #Derived_gen.11 #Derived_gen.12 #Derived_gen.13 #Derived_gen.14 #Derived_gen.15;

procedure Num.22 (#Attr.2, #Attr.3):
    let Num.280 : Int1 = lowlevel NumLt #Attr.2 #Attr.3;
    ret Num.280;

procedure Num.51 (#Attr.2, #Attr.3):
    let Num.279 : U64 = lowlevel NumAddWrap #Attr.2 #Attr.3;
    ret Num.279;

procedure Test.10 (Test.69, #Attr.12):
    let Test.72 : {} = UnionAtIndex (Id 0) (Index 0) #Attr.12;
    let #Derived_gen.18 : Int1 = lowlevel RefCountIsUnique #Attr.12;
    if #Derived_gen.18 then
        free #Attr.12;
        ret Test.72;
    else
        decref #Attr.12;
        ret Test.72;

procedure Test.10 (Test.69, #Attr.12):
    let Test.80 : {} = UnionAtIndex (Id 0) (Index 0) #Attr.12;
    ret Test.80;

procedure Test.14 (Test.45, #Attr.12):
    let Test.55 : {{}, []} = UnionAtIndex (Id 1) (Index 1) #Attr.12;
    let Test.54 : [<r>C {}, C *self {{}, []}] = UnionAtIndex (Id 1) (Index 0) #Attr.12;
    joinpoint #Derived_gen.19:
        let Test.50 : {} = Struct {};
        let Test.51 : U8 = GetTagId Test.54;
        joinpoint Test.52 Test.15:
            let Test.16 : [C {}, C []] = CallByName Test.20 Test.15 Test.55;
            let Test.48 : {} = Struct {};
            let Test.49 : U8 = GetTagId Test.16;
            switch Test.49:
                case 0:
                    let Test.47 : {} = CallByName Test.10 Test.48 Test.16;
                    ret Test.47;
            
                default:
                    let Test.47 : {} = CallByName Test.25 Test.48 Test.16;
                    ret Test.47;
            
        in
        switch Test.51:
            case 0:
                let Test.53 : {} = CallByName Test.10 Test.50 Test.54;
                jump Test.52 Test.53;
        
            default:
                let Test.53 : {} = CallByName Test.14 Test.50 Test.54;
                jump Test.52 Test.53;
        
    in
    let #Derived_gen.20 : Int1 = lowlevel RefCountIsUnique #Attr.12;
    if #Derived_gen.20 then
        free #Attr.12;
        jump #Derived_gen.19;
    else
        inc Test.54;
        decref #Attr.12;
        jump #Derived_gen.19;

procedure Test.20 (Test.21, Test.18):
    let Test.23 : [C {}, C []] = CallByName Test.32 Test.21 Test.18;
    ret Test.23;

procedure Test.25 (Test.59, #Attr.12):
    let Test.63 : [] = UnionAtIndex (Id 1) (Index 0) #Attr.12;
    let Test.62 : Str = "voided tag constructor is unreachable";
    Crash Test.62

procedure Test.29 (Test.30, Test.31, Test.28):
    let Test.42 : {{}, []} = Struct {Test.28, Test.31};
    let Test.41 : [<r>C {}, C *self {{}, []}] = CallByName Test.5 Test.30 Test.42;
    ret Test.41;

procedure Test.3 (Test.9):
    let Test.68 : [<r>C {}, C *self {{}, []}] = TagId(0) Test.9;
    ret Test.68;

procedure Test.3 (Test.9):
    let Test.76 : [C {}, C []] = TagId(0) Test.9;
    ret Test.76;

procedure Test.32 (Test.64, #Attr.12):
    let Test.31 : [] = StructAtIndex 1 #Attr.12;
    let Test.28 : {} = StructAtIndex 0 #Attr.12;
    let Test.66 : [C {}, C []] = CallByName Test.33 Test.31;
    ret Test.66;

procedure Test.33 (Test.73):
    let Test.75 : {} = Struct {};
    let Test.74 : [C {}, C []] = CallByName Test.3 Test.75;
    ret Test.74;

procedure Test.4 (Test.12, Test.13):
    let Test.46 : [<r>C {}, C *self {{}, []}] = TagId(1) Test.12 Test.13;
    ret Test.46;

procedure Test.5 (Test.17, Test.18):
    let Test.19 : [<r>C {}, C *self {{}, []}] = CallByName Test.4 Test.17 Test.18;
    ret Test.19;

procedure Test.6 (Test.27, Test.28):
    let Test.67 : {} = Struct {};
    let Test.38 : [<r>C {}, C *self {{}, []}] = CallByName Test.3 Test.67;
    let Test.37 : [<r>C {}, C *self {{}, []}] = CallByName List.18 Test.27 Test.38 Test.28;
    ret Test.37;

procedure Test.81 (Test.82):
    let Test.83 : {{}, []} = UnionAtIndex (Id 0) (Index 0) Test.82;
    dec Test.82;
    let Test.84 : {} = StructAtIndex 0 Test.83;
    ret Test.84;

procedure Test.85 (Test.86):
    let Test.87 : {{}, []} = UnionAtIndex (Id 0) (Index 0) Test.86;
    dec Test.86;
    let Test.88 : [] = StructAtIndex 1 Test.87;
    ret Test.88;

procedure Test.89 (Test.91, #Attr.12):
    let Test.92 : U8 = GetTagId #Attr.12;
    switch Test.92:
        case 0:
            let Test.90 : {} = CallByName Test.10 Test.91 #Attr.12;
            ret Test.90;
    
        default:
            let Test.90 : {} = CallByName Test.14 Test.91 #Attr.12;
            ret Test.90;
    

procedure Test.0 ():
    let Test.35 : List [] = Array [];
    let Test.36 : {} = Struct {};
    let Test.34 : [<r>C {}, C *self {{}, []}] = CallByName Test.6 Test.35 Test.36;
    dec Test.35;
    ret Test.34;