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- // MIR for `foo` before SimplifyLocals
+ // MIR for `foo` after SimplifyLocals
  
  fn foo() -> () {
      let mut _0: ();                      // return place in scope 0 at $DIR/simplify_locals_fixedpoint.rs:+0:13: +0:13
      let mut _1: (std::option::Option<u8>, std::option::Option<T>); // in scope 0 at $DIR/simplify_locals_fixedpoint.rs:+1:30: +1:69
      let mut _2: std::option::Option<u8>; // in scope 0 at $DIR/simplify_locals_fixedpoint.rs:+1:31: +1:49
      let mut _3: std::option::Option<T>;  // in scope 0 at $DIR/simplify_locals_fixedpoint.rs:+1:51: +1:68
      let mut _4: isize;                   // in scope 0 at $DIR/simplify_locals_fixedpoint.rs:+1:22: +1:26
      let mut _5: isize;                   // in scope 0 at $DIR/simplify_locals_fixedpoint.rs:+1:13: +1:20
-     let mut _7: bool;                    // in scope 0 at $DIR/simplify_locals_fixedpoint.rs:+2:12: +2:20
-     let mut _8: u8;                      // in scope 0 at $DIR/simplify_locals_fixedpoint.rs:+2:12: +2:13
      scope 1 {
          debug a => _6;                   // in scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:18: +1:19
          let _6: u8;                      // in scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:18: +1:19
      }
  
      bb0: {
          StorageLive(_1);                 // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:30: +1:69
          StorageLive(_2);                 // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:31: +1:49
          Deinit(_2);                      // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:31: +1:49
          discriminant(_2) = 0;            // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:31: +1:49
          StorageLive(_3);                 // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:51: +1:68
          Deinit(_3);                      // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:51: +1:68
          discriminant(_3) = 0;            // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:51: +1:68
          Deinit(_1);                      // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:30: +1:69
          (_1.0: std::option::Option<u8>) = move _2; // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:30: +1:69
          (_1.1: std::option::Option<T>) = move _3; // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:30: +1:69
          StorageDead(_3);                 // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:68: +1:69
          StorageDead(_2);                 // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:68: +1:69
          _5 = discriminant((_1.0: std::option::Option<u8>)); // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:12: +1:27
          switchInt(move _5) -> [1_isize: bb1, otherwise: bb3]; // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:12: +1:27
      }
  
      bb1: {
          _4 = discriminant((_1.1: std::option::Option<T>)); // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:12: +1:27
          switchInt(move _4) -> [0_isize: bb2, otherwise: bb3]; // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:12: +1:27
      }
  
      bb2: {
          StorageLive(_6);                 // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:18: +1:19
          _6 = (((_1.0: std::option::Option<u8>) as Some).0: u8); // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:18: +1:19
-         StorageLive(_7);                 // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+2:12: +2:20
-         StorageLive(_8);                 // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+2:12: +2:13
-         _8 = _6;                         // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+2:12: +2:13
-         _7 = Gt(move _8, const 42_u8);   // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+2:12: +2:20
-         StorageDead(_8);                 // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+2:19: +2:20
-         StorageDead(_7);                 // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+4:9: +4:10
          StorageDead(_6);                 // scope 0 at $DIR/simplify_locals_fixedpoint.rs:+5:5: +5:6
          goto -> bb3;                     // scope 0 at $DIR/simplify_locals_fixedpoint.rs:+1:5: +5:6
      }
  
      bb3: {
          drop(_1) -> bb4;                 // scope 0 at $DIR/simplify_locals_fixedpoint.rs:+6:1: +6:2
      }
  
      bb4: {
          StorageDead(_1);                 // scope 0 at $DIR/simplify_locals_fixedpoint.rs:+6:1: +6:2
          return;                          // scope 0 at $DIR/simplify_locals_fixedpoint.rs:+6:2: +6:2
      }
  }