tests/mir-opt/coroutine/async_fn.build_aggregate-{closure#0}.StateTransform.diff

- // MIR for `build_aggregate::{closure#0}` before StateTransform
+ // MIR for `build_aggregate::{closure#0}` after StateTransform
  
- fn build_aggregate::{closure#0}(_1: {async fn body of build_aggregate()}, _2: std::future::ResumeTy) -> u32
- yields ()
-  {
+ fn build_aggregate::{closure#0}(_1: Pin<&mut {async fn body of build_aggregate()}>, _2: &mut Context<'_>) -> Poll<u32> {
+     coroutine layout {
+         field _s0: u32;
+         field _s1: u32;
+         field _s2: u32;
+         field _s3: {async fn body of add()};
+         field _s4: {async fn body of add()};
+         variant_fields = {
+             Unresumed(0): [],
+             Returned (1): [],
+             Panicked (2): [],
+             Suspend0 (3): [_s0, _s1, _s3],
+             Suspend1 (4): [_s2, _s4],
+         }
+         storage_conflicts = BitMatrix(5x5) {(_s0, _s0), (_s0, _s1), (_s0, _s2), (_s0, _s3), (_s0, _s4), (_s1, _s0), (_s1, _s1), (_s1, _s2), (_s1, _s3), (_s1, _s4), (_s2, _s0), (_s2, _s1), (_s2, _s2), (_s2, _s3), (_s2, _s4), (_s3, _s0), (_s3, _s1), (_s3, _s2), (_s3, _s3), (_s4, _s0), (_s4, _s1), (_s4, _s2), (_s4, _s4)}
+     }
      debug _task_context => _2;
-     debug a => (_1.0: u32);
-     debug b => (_1.1: u32);
-     debug c => (_1.2: u32);
-     debug d => (_1.3: u32);
-     let mut _0: u32;
+     debug a => ((*_51).0: u32);
+     debug b => ((*_51).1: u32);
+     debug c => ((*_51).2: u32);
+     debug d => ((*_51).3: u32);
+     let mut _0: std::task::Poll<u32>;
      let _3: u32;
      let mut _8: u32;
      let mut _9: {async fn body of add()};
      let mut _10: {async fn body of add()};
      let mut _11: u32;
      let mut _12: u32;
      let mut _14: ();
      let _15: ();
      let mut _16: std::task::Poll<u32>;
      let mut _17: std::pin::Pin<&mut {async fn body of add()}>;
      let mut _18: &mut {async fn body of add()};
      let mut _19: &mut {async fn body of add()};
      let mut _20: &mut std::task::Context<'_>;
      let mut _21: &mut std::task::Context<'_>;
-     let mut _22: std::future::ResumeTy;
+     let mut _22: &mut std::task::Context<'_>;
      let mut _23: isize;
      let mut _25: !;
-     let mut _26: std::future::ResumeTy;
+     let mut _26: &mut std::task::Context<'_>;
      let mut _27: ();
      let mut _28: u32;
      let mut _29: {async fn body of add()};
      let mut _30: {async fn body of add()};
      let mut _31: u32;
      let mut _32: u32;
      let _34: ();
      let mut _35: std::task::Poll<u32>;
      let mut _36: std::pin::Pin<&mut {async fn body of add()}>;
      let mut _37: &mut {async fn body of add()};
      let mut _38: &mut {async fn body of add()};
      let mut _39: &mut std::task::Context<'_>;
      let mut _40: &mut std::task::Context<'_>;
-     let mut _41: std::future::ResumeTy;
+     let mut _41: &mut std::task::Context<'_>;
      let mut _42: isize;
      let mut _44: !;
-     let mut _45: std::future::ResumeTy;
+     let mut _45: &mut std::task::Context<'_>;
      let mut _46: ();
      let mut _47: u32;
      let mut _48: u32;
+     let mut _49: u32;
+     let mut _50: u32;
+     let mut _51: &mut {async fn body of build_aggregate()};
      scope 1 {
          debug a => _3;
          let _4: u32;
          scope 2 {
              debug b => _4;
+             coroutine debug c => _s0;
              let _5: u32;
              scope 3 {
-                 debug c => _5;
+                 debug c => (((*_51) as variant#3).0: u32);
+                 coroutine debug d => _s1;
                  let _6: u32;
                  scope 4 {
-                     debug d => _6;
+                     debug d => (((*_51) as variant#3).1: u32);
+                     coroutine debug __awaitee => _s3;
+                     coroutine debug __awaitee => _s4;
                      let _7: (u32, u32);
                      let mut _13: {async fn body of add()};
                      let mut _33: {async fn body of add()};
                      scope 5 {
                          debug x => _7;
                      }
                      scope 6 {
-                         debug __awaitee => _13;
+                         debug __awaitee => (((*_51) as variant#3).2: {async fn body of add()});
                          let _24: u32;
                          scope 7 {
                              debug result => _24;
                          }
                      }
                      scope 8 {
-                         debug __awaitee => _33;
+                         debug __awaitee => (((*_51) as variant#4).1: {async fn body of add()});
                          let _43: u32;
                          scope 9 {
                              debug result => _43;
                          }
                      }
                  }
              }
          }
      }
  
      bb0: {
-         StorageLive(_3);
-         _3 = copy (_1.0: u32);
-         StorageLive(_4);
-         _4 = copy (_1.1: u32);
-         StorageLive(_5);
-         _5 = copy (_1.2: u32);
-         StorageLive(_6);
-         _6 = copy (_1.3: u32);
-         StorageLive(_7);
-         StorageLive(_8);
-         StorageLive(_9);
-         StorageLive(_10);
-         StorageLive(_11);
-         _11 = copy _3;
-         StorageLive(_12);
-         _12 = copy _4;
-         _10 = add(move _11, move _12) -> [return: bb1, unwind: bb49];
+         _51 = copy (_1.0: &mut {async fn body of build_aggregate()});
+         _50 = discriminant((*_51));
+         switchInt(move _50) -> [0: bb49, 1: bb48, 2: bb47, 3: bb45, 4: bb46, otherwise: bb7];
      }
  
      bb1: {
          StorageDead(_12);
          StorageDead(_11);
-         _9 = <{async fn body of add()} as IntoFuture>::into_future(move _10) -> [return: bb2, unwind: bb48];
+         _9 = <{async fn body of add()} as IntoFuture>::into_future(move _10) -> [return: bb2, unwind: bb38];
      }
  
      bb2: {
          StorageDead(_10);
          PlaceMention(_9);
-         StorageLive(_13);
-         _13 = move _9;
+         nop;
+         (((*_51) as variant#3).2: {async fn body of add()}) = move _9;
          goto -> bb3;
      }
  
      bb3: {
          StorageLive(_15);
          StorageLive(_16);
          StorageLive(_17);
          StorageLive(_18);
          StorageLive(_19);
-         _19 = &mut _13;
+         _19 = &mut (((*_51) as variant#3).2: {async fn body of add()});
          _18 = &mut (*_19);
-         _17 = Pin::<&mut {async fn body of add()}>::new_unchecked(move _18) -> [return: bb4, unwind: bb44];
+         _17 = Pin::<&mut {async fn body of add()}>::new_unchecked(move _18) -> [return: bb4, unwind: bb34];
      }
  
      bb4: {
          StorageDead(_18);
          StorageLive(_20);
          StorageLive(_21);
          StorageLive(_22);
          _22 = copy _2;
-         _21 = std::future::get_context::<'_, '_>(move _22) -> [return: bb5, unwind: bb42];
+         _21 = move _22;
+         goto -> bb5;
      }
  
      bb5: {
          _20 = &mut (*_21);
          StorageDead(_22);
-         _16 = <{async fn body of add()} as Future>::poll(move _17, move _20) -> [return: bb6, unwind: bb43];
+         _16 = <{async fn body of add()} as Future>::poll(move _17, move _20) -> [return: bb6, unwind: bb33];
      }
  
      bb6: {
          StorageDead(_21);
          StorageDead(_20);
          StorageDead(_19);
          StorageDead(_17);
          PlaceMention(_16);
          _23 = discriminant(_16);
          switchInt(move _23) -> [0: bb9, 1: bb8, otherwise: bb7];
      }
  
      bb7: {
          unreachable;
      }
  
      bb8: {
          _15 = const ();
          StorageDead(_16);
          StorageDead(_15);
          StorageLive(_26);
          StorageLive(_27);
          _27 = ();
-         _26 = yield(move _27) -> [resume: bb10, drop: bb28];
+         _0 = Poll::<u32>::Pending;
+         StorageDead(_3);
+         StorageDead(_4);
+         StorageDead(_7);
+         StorageDead(_9);
+         StorageDead(_26);
+         StorageDead(_27);
+         discriminant((*_51)) = 3;
+         return;
      }
  
      bb9: {
          StorageLive(_24);
          _24 = copy ((_16 as Ready).0: u32);
-         _8 = copy _24;
+         (((*_51) as variant#4).0: u32) = copy _24;
          StorageDead(_24);
          StorageDead(_16);
          StorageDead(_15);
-         drop(_13) -> [return: bb11, unwind: bb46];
+         drop((((*_51) as variant#3).2: {async fn body of add()})) -> [return: bb11, unwind: bb36];
      }
  
      bb10: {
          StorageDead(_27);
          _2 = move _26;
          StorageDead(_26);
          _14 = const ();
          goto -> bb3;
      }
  
      bb11: {
-         StorageDead(_13);
+         nop;
          StorageLive(_28);
          StorageLive(_29);
          StorageLive(_30);
          StorageLive(_31);
-         _31 = copy _5;
+         _31 = copy (((*_51) as variant#3).0: u32);
          StorageLive(_32);
-         _32 = copy _6;
-         _30 = add(move _31, move _32) -> [return: bb12, unwind: bb39];
+         _32 = copy (((*_51) as variant#3).1: u32);
+         _30 = add(move _31, move _32) -> [return: bb12, unwind: bb30];
      }
  
      bb12: {
          StorageDead(_32);
          StorageDead(_31);
-         _29 = <{async fn body of add()} as IntoFuture>::into_future(move _30) -> [return: bb13, unwind: bb38];
+         _29 = <{async fn body of add()} as IntoFuture>::into_future(move _30) -> [return: bb13, unwind: bb29];
      }
  
      bb13: {
          StorageDead(_30);
          PlaceMention(_29);
-         StorageLive(_33);
-         _33 = move _29;
+         nop;
+         (((*_51) as variant#4).1: {async fn body of add()}) = move _29;
          goto -> bb14;
      }
  
      bb14: {
          StorageLive(_34);
          StorageLive(_35);
          StorageLive(_36);
          StorageLive(_37);
          StorageLive(_38);
-         _38 = &mut _33;
+         _38 = &mut (((*_51) as variant#4).1: {async fn body of add()});
          _37 = &mut (*_38);
-         _36 = Pin::<&mut {async fn body of add()}>::new_unchecked(move _37) -> [return: bb15, unwind: bb35];
+         _36 = Pin::<&mut {async fn body of add()}>::new_unchecked(move _37) -> [return: bb15, unwind: bb26];
      }
  
      bb15: {
          StorageDead(_37);
          StorageLive(_39);
          StorageLive(_40);
          StorageLive(_41);
          _41 = copy _2;
-         _40 = std::future::get_context::<'_, '_>(move _41) -> [return: bb16, unwind: bb33];
+         _40 = move _41;
+         goto -> bb16;
      }
  
      bb16: {
          _39 = &mut (*_40);
          StorageDead(_41);
-         _35 = <{async fn body of add()} as Future>::poll(move _36, move _39) -> [return: bb17, unwind: bb34];
+         _35 = <{async fn body of add()} as Future>::poll(move _36, move _39) -> [return: bb17, unwind: bb25];
      }
  
      bb17: {
          StorageDead(_40);
          StorageDead(_39);
          StorageDead(_38);
          StorageDead(_36);
          PlaceMention(_35);
          _42 = discriminant(_35);
          switchInt(move _42) -> [0: bb19, 1: bb18, otherwise: bb7];
      }
  
      bb18: {
          _34 = const ();
          StorageDead(_35);
          StorageDead(_34);
          StorageLive(_45);
          StorageLive(_46);
          _46 = ();
-         _45 = yield(move _46) -> [resume: bb20, drop: bb25];
+         _0 = Poll::<u32>::Pending;
+         StorageDead(_3);
+         StorageDead(_4);
+         StorageDead(_7);
+         StorageDead(_9);
+         StorageDead(_28);
+         StorageDead(_29);
+         StorageDead(_45);
+         StorageDead(_46);
+         discriminant((*_51)) = 4;
+         return;
      }
  
      bb19: {
          StorageLive(_43);
          _43 = copy ((_35 as Ready).0: u32);
          _28 = copy _43;
          StorageDead(_43);
          StorageDead(_35);
          StorageDead(_34);
-         drop(_33) -> [return: bb21, unwind: bb37];
+         drop((((*_51) as variant#4).1: {async fn body of add()})) -> [return: bb21, unwind: bb28];
      }
  
      bb20: {
          StorageDead(_46);
          _2 = move _45;
          StorageDead(_45);
          _14 = const ();
          goto -> bb14;
      }
  
      bb21: {
-         StorageDead(_33);
-         _7 = (move _8, move _28);
+         nop;
+         _7 = (move (((*_51) as variant#4).0: u32), move _28);
          StorageDead(_28);
-         StorageDead(_8);
+         nop;
          goto -> bb22;
      }
  
      bb22: {
          StorageDead(_29);
          goto -> bb23;
      }
  
      bb23: {
          StorageDead(_9);
          StorageLive(_47);
          _47 = copy (_7.0: u32);
          StorageLive(_48);
          _48 = copy (_7.1: u32);
-         _0 = Add(move _47, move _48);
+         _49 = Add(move _47, move _48);
          StorageDead(_48);
          StorageDead(_47);
          StorageDead(_7);
-         StorageDead(_6);
-         StorageDead(_5);
+         nop;
+         nop;
          StorageDead(_4);
          StorageDead(_3);
-         drop(_1) -> [return: bb24, unwind: bb52];
+         goto -> bb43;
      }
  
      bb24: {
+         _0 = Poll::<u32>::Ready(move _49);
+         discriminant((*_51)) = 1;
          return;
      }
  
-     bb25: {
-         StorageDead(_46);
-         StorageDead(_45);
-         drop(_33) -> [return: bb26, unwind: bb53];
-     }
- 
-     bb26: {
-         StorageDead(_33);
-         StorageDead(_28);
-         StorageDead(_8);
-         goto -> bb27;
-     }
- 
-     bb27: {
-         StorageDead(_29);
-         goto -> bb30;
-     }
- 
-     bb28: {
-         StorageDead(_27);
-         StorageDead(_26);
-         drop(_13) -> [return: bb29, unwind: bb55];
-     }
- 
-     bb29: {
-         StorageDead(_13);
-         StorageDead(_8);
-         goto -> bb30;
-     }
- 
-     bb30: {
-         goto -> bb31;
-     }
- 
-     bb31: {
-         StorageDead(_9);
-         StorageDead(_7);
-         StorageDead(_6);
-         StorageDead(_5);
-         StorageDead(_4);
-         StorageDead(_3);
-         drop(_1) -> [return: bb32, unwind: bb52];
-     }
- 
-     bb32: {
-         coroutine_drop;
-     }
- 
-     bb33 (cleanup): {
-         StorageDead(_41);
-         goto -> bb34;
-     }
- 
-     bb34 (cleanup): {
+     bb25 (cleanup): {
          StorageDead(_40);
          StorageDead(_39);
-         goto -> bb36;
+         goto -> bb27;
      }
  
-     bb35 (cleanup): {
+     bb26 (cleanup): {
          StorageDead(_37);
-         goto -> bb36;
+         goto -> bb27;
      }
  
-     bb36 (cleanup): {
+     bb27 (cleanup): {
          StorageDead(_38);
          StorageDead(_36);
          StorageDead(_35);
          StorageDead(_34);
-         drop(_33) -> [return: bb37, unwind terminate(cleanup)];
+         drop((((*_51) as variant#4).1: {async fn body of add()})) -> [return: bb28, unwind terminate(cleanup)];
      }
  
-     bb37 (cleanup): {
-         StorageDead(_33);
+     bb28 (cleanup): {
+         nop;
          StorageDead(_28);
-         StorageDead(_8);
-         goto -> bb41;
+         nop;
+         goto -> bb32;
      }
  
-     bb38 (cleanup): {
-         goto -> bb40;
+     bb29 (cleanup): {
+         goto -> bb31;
      }
  
-     bb39 (cleanup): {
+     bb30 (cleanup): {
          StorageDead(_32);
          StorageDead(_31);
-         goto -> bb40;
+         goto -> bb31;
      }
  
-     bb40 (cleanup): {
+     bb31 (cleanup): {
          StorageDead(_30);
          StorageDead(_28);
-         StorageDead(_8);
-         goto -> bb41;
+         nop;
+         goto -> bb32;
      }
  
-     bb41 (cleanup): {
+     bb32 (cleanup): {
          StorageDead(_29);
-         goto -> bb47;
+         goto -> bb37;
      }
  
-     bb42 (cleanup): {
-         StorageDead(_22);
-         goto -> bb43;
-     }
- 
-     bb43 (cleanup): {
+     bb33 (cleanup): {
          StorageDead(_21);
          StorageDead(_20);
-         goto -> bb45;
+         goto -> bb35;
      }
  
-     bb44 (cleanup): {
+     bb34 (cleanup): {
          StorageDead(_18);
-         goto -> bb45;
+         goto -> bb35;
      }
  
-     bb45 (cleanup): {
+     bb35 (cleanup): {
          StorageDead(_19);
          StorageDead(_17);
          StorageDead(_16);
          StorageDead(_15);
-         drop(_13) -> [return: bb46, unwind terminate(cleanup)];
+         drop((((*_51) as variant#3).2: {async fn body of add()})) -> [return: bb36, unwind terminate(cleanup)];
      }
  
-     bb46 (cleanup): {
-         StorageDead(_13);
-         StorageDead(_8);
-         goto -> bb47;
+     bb36 (cleanup): {
+         nop;
+         nop;
+         goto -> bb37;
      }
  
-     bb47 (cleanup): {
-         goto -> bb51;
+     bb37 (cleanup): {
+         goto -> bb41;
      }
  
-     bb48 (cleanup): {
-         goto -> bb50;
+     bb38 (cleanup): {
+         goto -> bb40;
      }
  
-     bb49 (cleanup): {
+     bb39 (cleanup): {
          StorageDead(_12);
          StorageDead(_11);
-         goto -> bb50;
+         goto -> bb40;
      }
  
-     bb50 (cleanup): {
+     bb40 (cleanup): {
          StorageDead(_10);
-         StorageDead(_8);
-         goto -> bb51;
+         nop;
+         goto -> bb41;
      }
  
-     bb51 (cleanup): {
+     bb41 (cleanup): {
          StorageDead(_9);
          StorageDead(_7);
-         StorageDead(_6);
-         StorageDead(_5);
+         nop;
+         nop;
          StorageDead(_4);
          StorageDead(_3);
-         drop(_1) -> [return: bb52, unwind terminate(cleanup)];
+         goto -> bb42;
      }
  
-     bb52 (cleanup): {
+     bb42 (cleanup): {
+         goto -> bb44;
+     }
+ 
+     bb43: {
+         goto -> bb24;
+     }
+ 
+     bb44 (cleanup): {
+         discriminant((*_51)) = 2;
          resume;
      }
  
-     bb53 (cleanup): {
-         StorageDead(_33);
-         StorageDead(_28);
-         StorageDead(_8);
-         goto -> bb54;
+     bb45: {
+         StorageLive(_3);
+         StorageLive(_4);
+         StorageLive(_7);
+         StorageLive(_9);
+         StorageLive(_26);
+         StorageLive(_27);
+         _26 = move _2;
+         goto -> bb10;
      }
  
-     bb54 (cleanup): {
-         StorageDead(_29);
-         goto -> bb56;
+     bb46: {
+         StorageLive(_3);
+         StorageLive(_4);
+         StorageLive(_7);
+         StorageLive(_9);
+         StorageLive(_28);
+         StorageLive(_29);
+         StorageLive(_45);
+         StorageLive(_46);
+         _45 = move _2;
+         goto -> bb20;
      }
  
-     bb55 (cleanup): {
-         StorageDead(_13);
-         StorageDead(_8);
-         goto -> bb56;
+     bb47: {
+         assert(const false, "`async fn` resumed after panicking") -> [success: bb47, unwind continue];
      }
  
-     bb56 (cleanup): {
-         goto -> bb57;
+     bb48: {
+         assert(const false, "`async fn` resumed after completion") -> [success: bb48, unwind continue];
      }
  
-     bb57 (cleanup): {
-         StorageDead(_9);
-         StorageDead(_7);
-         StorageDead(_6);
-         StorageDead(_5);
-         StorageDead(_4);
-         StorageDead(_3);
-         drop(_1) -> [return: bb52, unwind terminate(cleanup)];
+     bb49: {
+         StorageLive(_3);
+         _3 = copy ((*_51).0: u32);
+         StorageLive(_4);
+         _4 = copy ((*_51).1: u32);
+         nop;
+         (((*_51) as variant#3).0: u32) = copy ((*_51).2: u32);
+         nop;
+         (((*_51) as variant#3).1: u32) = copy ((*_51).3: u32);
+         StorageLive(_7);
+         nop;
+         StorageLive(_9);
+         StorageLive(_10);
+         StorageLive(_11);
+         _11 = copy _3;
+         StorageLive(_12);
+         _12 = copy _4;
+         _10 = add(move _11, move _12) -> [return: bb1, unwind: bb39];
      }
  }