- // MIR for `f` before CopyProp
+ // MIR for `f` after CopyProp
  
  fn f() -> bool {
      let mut _0: bool;                    // return place in scope 0 at $DIR/borrowed_local.rs:+0:11: +0:15
      let mut _1: u8;                      // in scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL
      let mut _2: &u8;                     // in scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL
      let mut _3: u8;                      // in scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL
      let mut _4: &u8;                     // in scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL
  
      bb0: {
          _1 = const 5_u8;                 // scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL
          _2 = &_1;                        // scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL
          _3 = _1;                         // scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL
          _4 = &_3;                        // scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL
          _0 = cmp_ref(_2, _4) -> bb1;     // scope 0 at $DIR/borrowed_local.rs:+8:13: +8:45
                                           // mir::Constant
                                           // + span: $DIR/borrowed_local.rs:24:29: 24:36
                                           // + literal: Const { ty: for<'a, 'b> fn(&'a u8, &'b u8) -> bool {cmp_ref}, val: Value(<ZST>) }
      }
  
      bb1: {
          _0 = opaque::<u8>(_3) -> bb2;    // scope 0 at $DIR/borrowed_local.rs:+12:13: +12:38
                                           // mir::Constant
                                           // + span: $DIR/borrowed_local.rs:28:28: 28:34
                                           // + literal: Const { ty: fn(u8) -> bool {opaque::<u8>}, val: Value(<ZST>) }
      }
  
      bb2: {
          return;                          // scope 0 at $DIR/borrowed_local.rs:+15:13: +15:21
      }
  }