src/test/mir-opt/while_let_loops.change_loop_body.ConstProp.32bit.diff

   1 - // MIR for `change_loop_body` before ConstProp
   2 + // MIR for `change_loop_body` after ConstProp
   3
   4   fn change_loop_body() -> () {
   5       let mut _0: ();                      // return place in scope 0 at $DIR/while_let_loops.rs:5:27: 5:27
   6       let mut _1: i32;                     // in scope 0 at $DIR/while_let_loops.rs:6:9: 6:15
   7       let mut _2: ();                      // in scope 0 at $DIR/while_let_loops.rs:5:1: 11:2
   8       let mut _3: std::option::Option<u32>; // in scope 0 at $DIR/while_let_loops.rs:7:28: 7:32
   9       let mut _4: isize;                   // in scope 0 at $DIR/while_let_loops.rs:7:15: 7:25
  10       let mut _5: !;                       // in scope 0 at $DIR/while_let_loops.rs:7:33: 10:6
  11       let mut _6: !;                       // in scope 0 at $DIR/while_let_loops.rs:7:5: 10:6
  12       let _7: ();                          // in scope 0 at $DIR/while_let_loops.rs:7:5: 10:6
  13       let mut _8: !;                       // in scope 0 at $DIR/while_let_loops.rs:7:5: 10:6
  14       scope 1 {
  15           debug _x => _1;                  // in scope 1 at $DIR/while_let_loops.rs:6:9: 6:15
  16           scope 2 {
  17           }
  18       }
  19
  20       bb0: {
  21           StorageLive(_1);                 // scope 0 at $DIR/while_let_loops.rs:6:9: 6:15
  22           _1 = const 0_i32;                // scope 0 at $DIR/while_let_loops.rs:6:18: 6:19
  23           StorageLive(_3);                 // scope 2 at $DIR/while_let_loops.rs:7:28: 7:32
  24           Deinit(_3);                      // scope 2 at $DIR/while_let_loops.rs:7:28: 7:32
  25           discriminant(_3) = 0;            // scope 2 at $DIR/while_let_loops.rs:7:28: 7:32
  26 -         _4 = discriminant(_3);           // scope 2 at $DIR/while_let_loops.rs:7:15: 7:25
  27 -         switchInt(move _4) -> [1_isize: bb1, otherwise: bb3]; // scope 2 at $DIR/while_let_loops.rs:7:15: 7:25
  28 +         _4 = const 0_isize;              // scope 2 at $DIR/while_let_loops.rs:7:15: 7:25
  29 +         switchInt(const 0_isize) -> [1_isize: bb1, otherwise: bb3]; // scope 2 at $DIR/while_let_loops.rs:7:15: 7:25
  30       }
  31
  32       bb1: {
  33           switchInt(((_3 as Some).0: u32)) -> [0_u32: bb2, otherwise: bb3]; // scope 2 at $DIR/while_let_loops.rs:7:15: 7:25
  34       }
  35
  36       bb2: {
  37           _1 = const 1_i32;                // scope 2 at $DIR/while_let_loops.rs:8:9: 8:15
  38           nop;                             // scope 2 at $DIR/while_let_loops.rs:9:9: 9:14
  39           goto -> bb4;                     // scope 2 at $DIR/while_let_loops.rs:9:9: 9:14
  40       }
  41
  42       bb3: {
  43           StorageLive(_7);                 // scope 1 at $DIR/while_let_loops.rs:7:5: 10:6
  44           nop;                             // scope 1 at $DIR/while_let_loops.rs:7:5: 10:6
  45           StorageDead(_7);                 // scope 1 at $DIR/while_let_loops.rs:10:5: 10:6
  46           goto -> bb4;                     // scope 1 at no-location
  47       }
  48
  49       bb4: {
  50           StorageDead(_3);                 // scope 1 at $DIR/while_let_loops.rs:10:5: 10:6
  51           StorageDead(_1);                 // scope 0 at $DIR/while_let_loops.rs:11:1: 11:2
  52           return;                          // scope 0 at $DIR/while_let_loops.rs:11:2: 11:2
  53       }
  54   }
  55