tests/mir-opt/const_prop/ref_deref.main.ConstProp.diff

   1 - // MIR for `main` before ConstProp
   2 + // MIR for `main` after ConstProp
   3
   4   fn main() -> () {
   5       let mut _0: ();                      // return place in scope 0 at $DIR/ref_deref.rs:+0:11: +0:11
   6       let _1: i32;                         // in scope 0 at $DIR/ref_deref.rs:+1:5: +1:10
   7       let mut _2: &i32;                    // in scope 0 at $DIR/ref_deref.rs:+1:6: +1:10
   8       let _3: i32;                         // in scope 0 at $DIR/ref_deref.rs:+1:8: +1:9
   9       let mut _4: &i32;                    // in scope 0 at $DIR/ref_deref.rs:+1:6: +1:10
  10
  11       bb0: {
  12           StorageLive(_1);                 // scope 0 at $DIR/ref_deref.rs:+1:5: +1:10
  13           StorageLive(_2);                 // scope 0 at $DIR/ref_deref.rs:+1:6: +1:10
  14           _4 = const _;                    // scope 0 at $DIR/ref_deref.rs:+1:6: +1:10
  15                                            // mir::Constant
  16                                            // + span: $DIR/ref_deref.rs:6:6: 6:10
  17                                            // + literal: Const { ty: &i32, val: Unevaluated(main, [], Some(promoted[0])) }
  18           _2 = _4;                         // scope 0 at $DIR/ref_deref.rs:+1:6: +1:10
  19 -         _1 = (*_2);                      // scope 0 at $DIR/ref_deref.rs:+1:5: +1:10
  20 +         _1 = const 4_i32;                // scope 0 at $DIR/ref_deref.rs:+1:5: +1:10
  21           StorageDead(_2);                 // scope 0 at $DIR/ref_deref.rs:+1:10: +1:11
  22           StorageDead(_1);                 // scope 0 at $DIR/ref_deref.rs:+1:10: +1:11
  23           nop;                             // scope 0 at $DIR/ref_deref.rs:+0:11: +2:2
  24           return;                          // scope 0 at $DIR/ref_deref.rs:+2:2: +2:2
  25       }
  26   }
  27