digraph block {
    N0[label="entry"];
    N1[label="exit"];
    N2[label="expr E13::E13b"];
    N3[label="expr 13"];
    N4[label="expr E13::E13b(13)"];
    N5[label="local x"];
    N6[label="stmt let x = E13::E13b(13);"];
    N7[label="local _y"];
    N8[label="stmt let _y;"];
    N9[label="expr x"];
    N10[label="expr match x { E13::E13a => _y = 1, E13::E13b(v) => _y = v + 1, }"];
    N11[label="(dummy_node)"];
    N12[label="pat E13::E13a"];
    N13[label="expr 1"];
    N14[label="expr _y"];
    N15[label="expr _y = 1"];
    N16[label="(dummy_node)"];
    N17[label="local v"];
    N18[label="pat E13::E13b(v)"];
    N19[label="expr v"];
    N20[label="expr 1"];
    N21[label="expr v + 1"];
    N22[label="expr _y"];
    N23[label="expr _y = v + 1"];
    N24[label="block {\l    let x = E13::E13b(13);\l    let _y;\l    match x { E13::E13a => _y = 1, E13::E13b(v) => _y = v + 1, }\l}\l"];
    N0 -> N2;
    N2 -> N3;
    N3 -> N4;
    N4 -> N5;
    N5 -> N6;
    N6 -> N7;
    N7 -> N8;
    N8 -> N9;
    N9 -> N12;
    N12 -> N11;
    N11 -> N13;
    N13 -> N14;
    N14 -> N15;
    N15 -> N10;
    N9 -> N17;
    N17 -> N18;
    N18 -> N16;
    N16 -> N19;
    N19 -> N20;
    N20 -> N21;
    N21 -> N22;
    N22 -> N23;
    N23 -> N10;
    N10 -> N24;
    N24 -> N1;
}