src/test/mir-opt/simplify-arm/rustc.id_result.SimplifyArmIdentity.diff

   1 - // MIR for `id_result` before SimplifyArmIdentity
   2 + // MIR for `id_result` after SimplifyArmIdentity
   3
   4   fn id_result(_1: std::result::Result<u8, i32>) -> std::result::Result<u8, i32> {
   5       debug r => _1;                       // in scope 0 at $DIR/simplify-arm.rs:16:14: 16:15
   6       let mut _0: std::result::Result<u8, i32>; // return place in scope 0 at $DIR/simplify-arm.rs:16:37: 16:52
   7       let mut _2: isize;                   // in scope 0 at $DIR/simplify-arm.rs:18:9: 18:14
   8       let _3: u8;                          // in scope 0 at $DIR/simplify-arm.rs:18:12: 18:13
   9       let mut _4: u8;                      // in scope 0 at $DIR/simplify-arm.rs:18:21: 18:22
  10       let _5: i32;                         // in scope 0 at $DIR/simplify-arm.rs:19:13: 19:14
  11       let mut _6: i32;                     // in scope 0 at $DIR/simplify-arm.rs:19:23: 19:24
  12       scope 1 {
  13           debug x => _3;                   // in scope 1 at $DIR/simplify-arm.rs:18:12: 18:13
  14       }
  15       scope 2 {
  16           debug y => _5;                   // in scope 2 at $DIR/simplify-arm.rs:19:13: 19:14
  17       }
  18
  19       bb0: {
  20           _2 = discriminant(_1);           // scope 0 at $DIR/simplify-arm.rs:18:9: 18:14
  21           switchInt(move _2) -> [0_isize: bb3, 1_isize: bb1, otherwise: bb2]; // scope 0 at $DIR/simplify-arm.rs:18:9: 18:14
  22       }
  23
  24       bb1: {
  25           StorageLive(_5);                 // scope 0 at $DIR/simplify-arm.rs:19:13: 19:14
  26           _5 = ((_1 as Err).0: i32);       // scope 0 at $DIR/simplify-arm.rs:19:13: 19:14
  27           StorageLive(_6);                 // scope 2 at $DIR/simplify-arm.rs:19:23: 19:24
  28           _6 = _5;                         // scope 2 at $DIR/simplify-arm.rs:19:23: 19:24
  29           ((_0 as Err).0: i32) = move _6;  // scope 2 at $DIR/simplify-arm.rs:19:19: 19:25
  30           discriminant(_0) = 1;            // scope 2 at $DIR/simplify-arm.rs:19:19: 19:25
  31           StorageDead(_6);                 // scope 2 at $DIR/simplify-arm.rs:19:24: 19:25
  32           StorageDead(_5);                 // scope 0 at $DIR/simplify-arm.rs:19:24: 19:25
  33           goto -> bb4;                     // scope 0 at $DIR/simplify-arm.rs:17:5: 20:6
  34       }
  35
  36       bb2: {
  37           unreachable;                     // scope 0 at $DIR/simplify-arm.rs:17:11: 17:12
  38       }
  39
  40       bb3: {
  41           StorageLive(_3);                 // scope 0 at $DIR/simplify-arm.rs:18:12: 18:13
  42           _3 = ((_1 as Ok).0: u8);         // scope 0 at $DIR/simplify-arm.rs:18:12: 18:13
  43           StorageLive(_4);                 // scope 1 at $DIR/simplify-arm.rs:18:21: 18:22
  44           _4 = _3;                         // scope 1 at $DIR/simplify-arm.rs:18:21: 18:22
  45           ((_0 as Ok).0: u8) = move _4;    // scope 1 at $DIR/simplify-arm.rs:18:18: 18:23
  46           discriminant(_0) = 0;            // scope 1 at $DIR/simplify-arm.rs:18:18: 18:23
  47           StorageDead(_4);                 // scope 1 at $DIR/simplify-arm.rs:18:22: 18:23
  48           StorageDead(_3);                 // scope 0 at $DIR/simplify-arm.rs:18:22: 18:23
  49           goto -> bb4;                     // scope 0 at $DIR/simplify-arm.rs:17:5: 20:6
  50       }
  51
  52       bb4: {
  53           return;                          // scope 0 at $DIR/simplify-arm.rs:21:2: 21:2
  54       }
  55   }
  56