src/test/mir-opt/const_prop/const_prop_fails_gracefully/rustc.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/const_prop_fails_gracefully.rs:5:11: 5:11
   6       let _1: usize;                       // in scope 0 at $DIR/const_prop_fails_gracefully.rs:7:9: 7:10
   7       let mut _2: *const i32;              // in scope 0 at $DIR/const_prop_fails_gracefully.rs:7:13: 7:30
   8       let _3: &i32;                        // in scope 0 at $DIR/const_prop_fails_gracefully.rs:7:13: 7:16
   9       let _4: ();                          // in scope 0 at $DIR/const_prop_fails_gracefully.rs:8:5: 8:12
  10       let mut _5: usize;                   // in scope 0 at $DIR/const_prop_fails_gracefully.rs:8:10: 8:11
  11       scope 1 {
  12           debug x => _1;                   // in scope 1 at $DIR/const_prop_fails_gracefully.rs:7:9: 7:10
  13       }
  14
  15       bb0: {
  16           StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/const_prop_fails_gracefully.rs:7:9: 7:10
  17           StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/const_prop_fails_gracefully.rs:7:13: 7:30
  18           StorageLive(_3);                 // bb0[2]: scope 0 at $DIR/const_prop_fails_gracefully.rs:7:13: 7:16
  19           _3 = const main::FOO;            // bb0[3]: scope 0 at $DIR/const_prop_fails_gracefully.rs:7:13: 7:16
  20                                            // ty::Const
  21                                            // + ty: &i32
  22                                            // + val: Unevaluated(DefId(0:5 ~ const_prop_fails_gracefully[317d]::main[0]::FOO[0]), [], None)
  23                                            // mir::Constant
  24                                            // + span: $DIR/const_prop_fails_gracefully.rs:7:13: 7:16
  25                                            // + literal: Const { ty: &i32, val: Unevaluated(DefId(0:5 ~ const_prop_fails_gracefully[317d]::main[0]::FOO[0]), [], None) }
  26           _2 = &raw const (*_3);           // bb0[4]: scope 0 at $DIR/const_prop_fails_gracefully.rs:7:13: 7:16
  27           _1 = move _2 as usize (Misc);    // bb0[5]: scope 0 at $DIR/const_prop_fails_gracefully.rs:7:13: 7:39
  28           StorageDead(_2);                 // bb0[6]: scope 0 at $DIR/const_prop_fails_gracefully.rs:7:38: 7:39
  29           StorageDead(_3);                 // bb0[7]: scope 0 at $DIR/const_prop_fails_gracefully.rs:7:39: 7:40
  30           StorageLive(_4);                 // bb0[8]: scope 1 at $DIR/const_prop_fails_gracefully.rs:8:5: 8:12
  31           StorageLive(_5);                 // bb0[9]: scope 1 at $DIR/const_prop_fails_gracefully.rs:8:10: 8:11
  32           _5 = _1;                         // bb0[10]: scope 1 at $DIR/const_prop_fails_gracefully.rs:8:10: 8:11
  33           _4 = const read(move _5) -> bb1; // bb0[11]: scope 1 at $DIR/const_prop_fails_gracefully.rs:8:5: 8:12
  34                                            // ty::Const
  35                                            // + ty: fn(usize) {read}
  36                                            // + val: Value(Scalar(<ZST>))
  37                                            // mir::Constant
  38                                            // + span: $DIR/const_prop_fails_gracefully.rs:8:5: 8:9
  39                                            // + literal: Const { ty: fn(usize) {read}, val: Value(Scalar(<ZST>)) }
  40       }
  41
  42       bb1: {
  43           StorageDead(_5);                 // bb1[0]: scope 1 at $DIR/const_prop_fails_gracefully.rs:8:11: 8:12
  44           StorageDead(_4);                 // bb1[1]: scope 1 at $DIR/const_prop_fails_gracefully.rs:8:12: 8:13
  45           _0 = const ();                   // bb1[2]: scope 0 at $DIR/const_prop_fails_gracefully.rs:5:11: 9:2
  46                                            // ty::Const
  47                                            // + ty: ()
  48                                            // + val: Value(Scalar(<ZST>))
  49                                            // mir::Constant
  50                                            // + span: $DIR/const_prop_fails_gracefully.rs:5:11: 9:2
  51                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
  52           StorageDead(_1);                 // bb1[3]: scope 0 at $DIR/const_prop_fails_gracefully.rs:9:1: 9:2
  53           return;                          // bb1[4]: scope 0 at $DIR/const_prop_fails_gracefully.rs:9:2: 9:2
  54       }
  55   }
  56