1- // MIR for `identity` before SeparateConstSwitch
2+ // MIR for `identity` after SeparateConstSwitch
3
4  fn identity(_1: Result<i32, i32>) -> Result<i32, i32> {
5      debug x => _1;                       // in scope 0 at $DIR/separate_const_switch.rs:28:13: 28:14
6      let mut _0: std::result::Result<i32, i32>; // return place in scope 0 at $DIR/separate_const_switch.rs:28:37: 28:53
7      let mut _2: i32;                     // in scope 0 at $DIR/separate_const_switch.rs:29:8: 29:10
8      let mut _3: std::ops::ControlFlow<std::result::Result<std::convert::Infallible, i32>, i32>; // in scope 0 at $DIR/separate_const_switch.rs:29:8: 29:10
9      let mut _4: std::result::Result<i32, i32>; // in scope 0 at $DIR/separate_const_switch.rs:29:8: 29:9
10      let mut _5: isize;                   // in scope 0 at $DIR/separate_const_switch.rs:29:9: 29:10
11      let _6: std::result::Result<std::convert::Infallible, i32>; // in scope 0 at $DIR/separate_const_switch.rs:29:9: 29:10
12      let mut _7: !;                       // in scope 0 at $DIR/separate_const_switch.rs:29:9: 29:10
13      let mut _8: std::result::Result<std::convert::Infallible, i32>; // in scope 0 at $DIR/separate_const_switch.rs:29:9: 29:10
14      let _9: i32;                         // in scope 0 at $DIR/separate_const_switch.rs:29:8: 29:10
15      scope 1 {
16          debug residual => _6;            // in scope 1 at $DIR/separate_const_switch.rs:29:9: 29:10
17          scope 2 {
18              scope 8 (inlined <Result<i32, i32> as FromResidual<Result<Infallible, i32>>>::from_residual) { // at $DIR/separate_const_switch.rs:29:8: 29:10
19                  debug residual => _8;    // in scope 8 at $DIR/separate_const_switch.rs:29:8: 29:10
20                  let _16: i32;            // in scope 8 at $DIR/separate_const_switch.rs:29:8: 29:10
21                  let mut _17: i32;        // in scope 8 at $DIR/separate_const_switch.rs:29:8: 29:10
22                  let mut _18: i32;        // in scope 8 at $DIR/separate_const_switch.rs:29:8: 29:10
23                  scope 9 {
24                      debug e => _16;      // in scope 9 at $DIR/separate_const_switch.rs:29:8: 29:10
25                      scope 10 (inlined <i32 as From<i32>>::from) { // at $DIR/separate_const_switch.rs:29:8: 29:10
26                          debug t => _18;  // in scope 10 at $DIR/separate_const_switch.rs:29:8: 29:10
27                      }
28                  }
29              }
30          }
31      }
32      scope 3 {
33          debug val => _9;                 // in scope 3 at $DIR/separate_const_switch.rs:29:8: 29:10
34          scope 4 {
35          }
36      }
37      scope 5 (inlined <Result<i32, i32> as Try>::branch) { // at $DIR/separate_const_switch.rs:29:8: 29:10
38          debug self => _4;                // in scope 5 at $DIR/separate_const_switch.rs:29:8: 29:10
39          let mut _10: isize;              // in scope 5 at $DIR/separate_const_switch.rs:29:8: 29:10
40          let _11: i32;                    // in scope 5 at $DIR/separate_const_switch.rs:29:8: 29:10
41          let mut _12: i32;                // in scope 5 at $DIR/separate_const_switch.rs:29:8: 29:10
42          let _13: i32;                    // in scope 5 at $DIR/separate_const_switch.rs:29:8: 29:10
43          let mut _14: std::result::Result<std::convert::Infallible, i32>; // in scope 5 at $DIR/separate_const_switch.rs:29:8: 29:10
44          let mut _15: i32;                // in scope 5 at $DIR/separate_const_switch.rs:29:8: 29:10
45          scope 6 {
46              debug v => _11;              // in scope 6 at $DIR/separate_const_switch.rs:29:8: 29:10
47          }
48          scope 7 {
49              debug e => _13;              // in scope 7 at $DIR/separate_const_switch.rs:29:8: 29:10
50          }
51      }
52
53      bb0: {
54          StorageLive(_2);                 // scope 0 at $DIR/separate_const_switch.rs:29:8: 29:10
55          StorageLive(_3);                 // scope 0 at $DIR/separate_const_switch.rs:29:8: 29:10
56          StorageLive(_4);                 // scope 0 at $DIR/separate_const_switch.rs:29:8: 29:9
57          _4 = _1;                         // scope 0 at $DIR/separate_const_switch.rs:29:8: 29:9
58          StorageLive(_10);                // scope 0 at $DIR/separate_const_switch.rs:29:8: 29:10
59          _10 = discriminant(_4);          // scope 5 at $DIR/separate_const_switch.rs:29:8: 29:10
60-         switchInt(move _10) -> [0_isize: bb6, 1_isize: bb4, otherwise: bb5]; // scope 5 at $DIR/separate_const_switch.rs:29:8: 29:10
61+         switchInt(move _10) -> [0_isize: bb5, 1_isize: bb3, otherwise: bb4]; // scope 5 at $DIR/separate_const_switch.rs:29:8: 29:10
62      }
63
64      bb1: {
65-         StorageDead(_10);                // scope 0 at $DIR/separate_const_switch.rs:29:8: 29:10
66-         StorageDead(_4);                 // scope 0 at $DIR/separate_const_switch.rs:29:9: 29:10
67-         _5 = discriminant(_3);           // scope 0 at $DIR/separate_const_switch.rs:29:8: 29:10
68-         switchInt(move _5) -> [0_isize: bb2, otherwise: bb3]; // scope 0 at $DIR/separate_const_switch.rs:29:8: 29:10
69-     }
70-
71-     bb2: {
72          StorageLive(_9);                 // scope 0 at $DIR/separate_const_switch.rs:29:8: 29:10
73          _9 = ((_3 as Continue).0: i32);  // scope 0 at $DIR/separate_const_switch.rs:29:8: 29:10
74          _2 = _9;                         // scope 4 at $DIR/separate_const_switch.rs:29:8: 29:10
75          StorageDead(_9);                 // scope 0 at $DIR/separate_const_switch.rs:29:9: 29:10
76          ((_0 as Ok).0: i32) = move _2;   // scope 0 at $DIR/separate_const_switch.rs:29:5: 29:11
77          discriminant(_0) = 0;            // scope 0 at $DIR/separate_const_switch.rs:29:5: 29:11
78          StorageDead(_2);                 // scope 0 at $DIR/separate_const_switch.rs:29:10: 29:11
79          StorageDead(_3);                 // scope 0 at $DIR/separate_const_switch.rs:30:1: 30:2
80          return;                          // scope 0 at $DIR/separate_const_switch.rs:30:2: 30:2
81      }
82
83-     bb3: {
84+     bb2: {
85          StorageLive(_6);                 // scope 0 at $DIR/separate_const_switch.rs:29:9: 29:10
86          _6 = ((_3 as Break).0: std::result::Result<std::convert::Infallible, i32>); // scope 0 at $DIR/separate_const_switch.rs:29:9: 29:10
87          StorageLive(_8);                 // scope 2 at $DIR/separate_const_switch.rs:29:9: 29:10
88          _8 = _6;                         // scope 2 at $DIR/separate_const_switch.rs:29:9: 29:10
89          StorageLive(_16);                // scope 8 at $DIR/separate_const_switch.rs:29:8: 29:10
90          _16 = move ((_8 as Err).0: i32); // scope 8 at $DIR/separate_const_switch.rs:29:8: 29:10
91          StorageLive(_17);                // scope 9 at $DIR/separate_const_switch.rs:29:8: 29:10
92          StorageLive(_18);                // scope 9 at $DIR/separate_const_switch.rs:29:8: 29:10
93          _18 = move _16;                  // scope 9 at $DIR/separate_const_switch.rs:29:8: 29:10
94          _17 = move _18;                  // scope 10 at $DIR/separate_const_switch.rs:29:8: 29:10
95          StorageDead(_18);                // scope 9 at $DIR/separate_const_switch.rs:29:8: 29:10
96          ((_0 as Err).0: i32) = move _17; // scope 9 at $DIR/separate_const_switch.rs:29:8: 29:10
97          discriminant(_0) = 1;            // scope 9 at $DIR/separate_const_switch.rs:29:8: 29:10
98          StorageDead(_17);                // scope 9 at $DIR/separate_const_switch.rs:29:8: 29:10
99          StorageDead(_16);                // scope 8 at $DIR/separate_const_switch.rs:29:8: 29:10
100          StorageDead(_8);                 // scope 2 at $DIR/separate_const_switch.rs:29:9: 29:10
101          StorageDead(_6);                 // scope 0 at $DIR/separate_const_switch.rs:29:9: 29:10
102          StorageDead(_2);                 // scope 0 at $DIR/separate_const_switch.rs:29:10: 29:11
103          StorageDead(_3);                 // scope 0 at $DIR/separate_const_switch.rs:30:1: 30:2
104          return;                          // scope 0 at $DIR/separate_const_switch.rs:30:2: 30:2
105      }
106
107-     bb4: {
108+     bb3: {
109          StorageLive(_13);                // scope 5 at $DIR/separate_const_switch.rs:29:8: 29:10
110          _13 = move ((_4 as Err).0: i32); // scope 5 at $DIR/separate_const_switch.rs:29:8: 29:10
111          StorageLive(_14);                // scope 7 at $DIR/separate_const_switch.rs:29:8: 29:10
112          StorageLive(_15);                // scope 7 at $DIR/separate_const_switch.rs:29:8: 29:10
113          _15 = move _13;                  // scope 7 at $DIR/separate_const_switch.rs:29:8: 29:10
114          ((_14 as Err).0: i32) = move _15; // scope 7 at $DIR/separate_const_switch.rs:29:8: 29:10
115          discriminant(_14) = 1;           // scope 7 at $DIR/separate_const_switch.rs:29:8: 29:10
116          StorageDead(_15);                // scope 7 at $DIR/separate_const_switch.rs:29:8: 29:10
117          ((_3 as Break).0: std::result::Result<std::convert::Infallible, i32>) = move _14; // scope 7 at $DIR/separate_const_switch.rs:29:8: 29:10
118          discriminant(_3) = 1;            // scope 7 at $DIR/separate_const_switch.rs:29:8: 29:10
119          StorageDead(_14);                // scope 7 at $DIR/separate_const_switch.rs:29:8: 29:10
120          StorageDead(_13);                // scope 5 at $DIR/separate_const_switch.rs:29:8: 29:10
121-         goto -> bb1;                     // scope 5 at $DIR/separate_const_switch.rs:29:8: 29:10
122+         StorageDead(_10);                // scope 0 at $DIR/separate_const_switch.rs:29:8: 29:10
123+         StorageDead(_4);                 // scope 0 at $DIR/separate_const_switch.rs:29:9: 29:10
124+         _5 = discriminant(_3);           // scope 0 at $DIR/separate_const_switch.rs:29:8: 29:10
125+         switchInt(move _5) -> [0_isize: bb1, otherwise: bb2]; // scope 0 at $DIR/separate_const_switch.rs:29:8: 29:10
126      }
127
128-     bb5: {
129+     bb4: {
130          unreachable;                     // scope 5 at $DIR/separate_const_switch.rs:29:8: 29:10
131      }
132
133-     bb6: {
134+     bb5: {
135          StorageLive(_11);                // scope 5 at $DIR/separate_const_switch.rs:29:8: 29:10
136          _11 = move ((_4 as Ok).0: i32);  // scope 5 at $DIR/separate_const_switch.rs:29:8: 29:10
137          StorageLive(_12);                // scope 6 at $DIR/separate_const_switch.rs:29:8: 29:10
138          _12 = move _11;                  // scope 6 at $DIR/separate_const_switch.rs:29:8: 29:10
139          ((_3 as Continue).0: i32) = move _12; // scope 6 at $DIR/separate_const_switch.rs:29:8: 29:10
140          discriminant(_3) = 0;            // scope 6 at $DIR/separate_const_switch.rs:29:8: 29:10
141          StorageDead(_12);                // scope 6 at $DIR/separate_const_switch.rs:29:8: 29:10
142          StorageDead(_11);                // scope 5 at $DIR/separate_const_switch.rs:29:8: 29:10
143-         goto -> bb1;                     // scope 5 at $DIR/separate_const_switch.rs:29:8: 29:10
144+         StorageDead(_10);                // scope 0 at $DIR/separate_const_switch.rs:29:8: 29:10
145+         StorageDead(_4);                 // scope 0 at $DIR/separate_const_switch.rs:29:9: 29:10
146+         _5 = discriminant(_3);           // scope 0 at $DIR/separate_const_switch.rs:29:8: 29:10
147+         switchInt(move _5) -> [0_isize: bb1, otherwise: bb2]; // scope 0 at $DIR/separate_const_switch.rs:29:8: 29:10
148      }
149  }
150
151