src/test/mir-opt/simplify_try.try_identity.DestinationPropagation.diff

- // MIR for `try_identity` before DestinationPropagation
+ // MIR for `try_identity` after DestinationPropagation
  
  fn try_identity(_1: std::result::Result<u32, i32>) -> std::result::Result<u32, i32> {
      debug x => _1;                       // in scope 0 at $DIR/simplify_try.rs:7:17: 7:18
      let mut _0: std::result::Result<u32, i32>; // return place in scope 0 at $DIR/simplify_try.rs:7:41: 7:57
      let _2: u32;                         // in scope 0 at $DIR/simplify_try.rs:8:9: 8:10
      let mut _3: std::result::Result<u32, i32>; // in scope 0 at $DIR/simplify_try.rs:8:13: 8:15
      let mut _4: std::result::Result<u32, i32>; // in scope 0 at $DIR/simplify_try.rs:8:13: 8:14
      let mut _5: isize;                   // in scope 0 at $DIR/simplify_try.rs:8:14: 8:15
      let _6: i32;                         // in scope 0 at $DIR/simplify_try.rs:8:14: 8:15
      let mut _7: !;                       // in scope 0 at $DIR/simplify_try.rs:8:14: 8:15
      let mut _8: i32;                     // in scope 0 at $DIR/simplify_try.rs:8:14: 8:15
      let mut _9: i32;                     // in scope 0 at $DIR/simplify_try.rs:8:14: 8:15
      let _10: u32;                        // in scope 0 at $DIR/simplify_try.rs:8:13: 8:15
      let mut _11: u32;                    // in scope 0 at $DIR/simplify_try.rs:9:8: 9:9
      scope 1 {
          debug y => ((_0 as Ok).0: u32);  // in scope 1 at $DIR/simplify_try.rs:8:9: 8:10
      }
      scope 2 {
          debug err => ((_0 as Err).0: i32); // in scope 2 at $DIR/simplify_try.rs:8:14: 8:15
          scope 3 {
              scope 7 {
                  debug t => ((_0 as Err).0: i32); // in scope 7 at $SRC_DIR/core/src/convert/mod.rs:LL:COL
              }
              scope 8 {
                  debug v => ((_0 as Err).0: i32); // in scope 8 at $SRC_DIR/core/src/result.rs:LL:COL
                  let mut _12: i32;        // in scope 8 at $DIR/simplify_try.rs:8:13: 8:15
              }
          }
      }
      scope 4 {
          debug val => ((_0 as Ok).0: u32); // in scope 4 at $DIR/simplify_try.rs:8:13: 8:15
          scope 5 {
          }
      }
      scope 6 {
-         debug self => _4;                // in scope 6 at $SRC_DIR/core/src/result.rs:LL:COL
+         debug self => _0;                // in scope 6 at $SRC_DIR/core/src/result.rs:LL:COL
      }
  
      bb0: {
          StorageLive(_2);                 // scope 0 at $DIR/simplify_try.rs:8:9: 8:10
-         StorageLive(_3);                 // scope 0 at $DIR/simplify_try.rs:8:13: 8:15
-         StorageLive(_4);                 // scope 0 at $DIR/simplify_try.rs:8:13: 8:14
-         _4 = _1;                         // scope 0 at $DIR/simplify_try.rs:8:13: 8:14
-         _3 = move _4;                    // scope 6 at $SRC_DIR/core/src/result.rs:LL:COL
-         StorageDead(_4);                 // scope 0 at $DIR/simplify_try.rs:8:14: 8:15
-         _5 = discriminant(_3);           // scope 0 at $DIR/simplify_try.rs:8:14: 8:15
+         nop;                             // scope 0 at $DIR/simplify_try.rs:8:13: 8:15
+         nop;                             // scope 0 at $DIR/simplify_try.rs:8:13: 8:14
+         _0 = _1;                         // scope 0 at $DIR/simplify_try.rs:8:13: 8:14
+         nop;                             // scope 6 at $SRC_DIR/core/src/result.rs:LL:COL
+         nop;                             // scope 0 at $DIR/simplify_try.rs:8:14: 8:15
+         _5 = discriminant(_0);           // scope 0 at $DIR/simplify_try.rs:8:14: 8:15
          goto -> bb1;                     // scope 0 at $DIR/simplify_try.rs:8:14: 8:15
      }
  
      bb1: {
-         _0 = move _3;                    // scope 1 at $DIR/simplify_try.rs:9:5: 9:10
-         StorageDead(_3);                 // scope 0 at $DIR/simplify_try.rs:8:15: 8:16
+         nop;                             // scope 1 at $DIR/simplify_try.rs:9:5: 9:10
+         nop;                             // scope 0 at $DIR/simplify_try.rs:8:15: 8:16
          StorageDead(_2);                 // scope 0 at $DIR/simplify_try.rs:10:1: 10:2
          return;                          // scope 0 at $DIR/simplify_try.rs:10:2: 10:2
      }
  }