and_star.opt_mutable.InstCombine.diff

- // MIR for `opt_mutable` before InstCombine
+ // MIR for `opt_mutable` after InstCombine
  
  fn opt_mutable(_1: &mut [u8]) -> () {
      debug dst => _1;                     // in scope 0 at $DIR/and_star.rs:2:16: 2:19
      let mut _0: ();                      // return place in scope 0 at $DIR/and_star.rs:2:32: 2:32
      let _2: std::option::Option<&mut u8>; // in scope 0 at $DIR/and_star.rs:3:5: 3:19
      let mut _3: &mut [u8];               // in scope 0 at $DIR/and_star.rs:3:5: 3:8
      let mut _6: usize;                   // in scope 0 at $DIR/and_star.rs:3:5: 3:19
      scope 1 {
          debug self => _3;                // in scope 1 at $SRC_DIR/core/src/slice/mod.rs:LL:COL
          debug index => _6;               // in scope 1 at $SRC_DIR/core/src/slice/mod.rs:LL:COL
          let mut _4: usize;               // in scope 1 at $DIR/and_star.rs:3:5: 3:19
          let mut _5: &mut [u8];           // in scope 1 at $DIR/and_star.rs:3:5: 3:19
      }
  
      bb0: {
          StorageLive(_2);                 // scope 0 at $DIR/and_star.rs:3:5: 3:19
          StorageLive(_3);                 // scope 0 at $DIR/and_star.rs:3:5: 3:8
-         _3 = &mut (*_1);                 // scope 0 at $DIR/and_star.rs:3:5: 3:8
+         _3 = _1;                         // scope 0 at $DIR/and_star.rs:3:5: 3:8
          StorageLive(_6);                 // scope 0 at $DIR/and_star.rs:3:5: 3:19
          _6 = const 0_usize;              // scope 0 at $DIR/and_star.rs:3:5: 3:19
          StorageLive(_4);                 // scope 1 at $SRC_DIR/core/src/slice/mod.rs:LL:COL
          _4 = move _6;                    // scope 1 at $SRC_DIR/core/src/slice/mod.rs:LL:COL
          StorageLive(_5);                 // scope 1 at $SRC_DIR/core/src/slice/mod.rs:LL:COL
          _5 = _3;                         // scope 1 at $SRC_DIR/core/src/slice/mod.rs:LL:COL
          _2 = <usize as SliceIndex<[u8]>>::get_mut(move _4, move _5) -> bb1; // scope 1 at $SRC_DIR/core/src/slice/mod.rs:LL:COL
                                           // mir::Constant
                                           // + span: $SRC_DIR/core/src/slice/mod.rs:LL:COL
                                           // + literal: Const { ty: for<'r> fn(usize, &'r mut [u8]) -> std::option::Option<&'r mut <usize as std::slice::SliceIndex<[u8]>>::Output> {<usize as std::slice::SliceIndex<[u8]>>::get_mut}, val: Value(Scalar(<ZST>)) }
      }
  
      bb1: {
          StorageDead(_5);                 // scope 1 at $SRC_DIR/core/src/slice/mod.rs:LL:COL
          StorageDead(_4);                 // scope 1 at $SRC_DIR/core/src/slice/mod.rs:LL:COL
          StorageDead(_6);                 // scope 0 at $DIR/and_star.rs:3:5: 3:19
          StorageDead(_3);                 // scope 0 at $DIR/and_star.rs:3:18: 3:19
          StorageDead(_2);                 // scope 0 at $DIR/and_star.rs:3:19: 3:20
          _0 = const ();                   // scope 0 at $DIR/and_star.rs:2:32: 4:2
          return;                          // scope 0 at $DIR/and_star.rs:4:2: 4:2
      }
  }