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

- // MIR for `main::{closure#0}` before StateTransform
+ // MIR for `main::{closure#0}` after StateTransform
  
- fn main::{closure#0}(_1: {coroutine@$DIR/coroutine.rs:19:5: 19:18}, _2: String) -> ()
- yields (&str, String, &Location<'_>)
-  {
-     debug arg => _2;
-     let mut _0: ();
+ fn main::{closure#0}(_1: Pin<&mut {coroutine@$DIR/coroutine.rs:19:5: 19:18}>, _2: String) -> CoroutineState<(&str, String, &Location<'_>), ()> {
+     coroutine layout {
+         field _s0: String;
+         variant_fields = {
+             Unresumed(0): [],
+             Returned (1): [],
+             Panicked (2): [],
+             Suspend0 (3): [_s0],
+             Suspend1 (4): [_s0],
+         }
+         storage_conflicts = BitMatrix(1x1) {(_s0, _s0)}
+     }
+     debug arg => (((*_18) as variant#4).0: std::string::String);
+     coroutine debug arg => _s0;
+     let mut _0: std::ops::CoroutineState<(&str, std::string::String, &std::panic::Location<'_>), ()>;
      let _3: std::string::String;
      let mut _4: (&str, std::string::String, &std::panic::Location<'_>);
      let mut _5: std::string::String;
      let mut _6: &std::string::String;
      let mut _7: &std::panic::Location<'_>;
      let _8: std::string::String;
      let mut _9: (&str, std::string::String, &std::panic::Location<'_>);
      let mut _10: &str;
      let _11: &str;
      let mut _12: std::string::String;
      let mut _13: &std::string::String;
      let mut _14: &std::panic::Location<'_>;
      let _15: &std::panic::Location<'_>;
+     let mut _16: ();
+     let mut _17: u32;
+     let mut _18: &mut {coroutine@$DIR/coroutine.rs:19:5: 19:18};
  
      bb0: {
-         StorageLive(_3);
-         StorageLive(_4);
-         StorageLive(_5);
-         StorageLive(_6);
-         _6 = &_2;
-         _5 = <String as Clone>::clone(move _6) -> [return: bb1, unwind: bb31];
+         _18 = copy (_1.0: &mut {coroutine@$DIR/coroutine.rs:19:5: 19:18});
+         _17 = discriminant((*_18));
+         switchInt(move _17) -> [0: bb36, 1: bb34, 2: bb33, 3: bb31, 4: bb32, otherwise: bb35];
      }
  
      bb1: {
          StorageDead(_6);
          StorageLive(_7);
-         _7 = Location::<'_>::caller() -> [return: bb2, unwind: bb30];
+         _7 = Location::<'_>::caller() -> [return: bb2, unwind: bb21];
      }
  
      bb2: {
          _4 = (const "first", move _5, move _7);
          StorageDead(_7);
          goto -> bb3;
      }
  
      bb3: {
          StorageDead(_5);
-         _3 = yield(move _4) -> [resume: bb4, drop: bb18];
+         _0 = CoroutineState::<(&str, String, &Location<'_>), ()>::Yielded(move _4);
+         StorageDead(_3);
+         StorageDead(_4);
+         discriminant((*_18)) = 3;
+         return;
      }
  
      bb4: {
          goto -> bb5;
      }
  
      bb5: {
          StorageDead(_4);
-         drop(_3) -> [return: bb6, unwind: bb34];
+         drop(_3) -> [return: bb6, unwind: bb25];
      }
  
      bb6: {
          StorageDead(_3);
          StorageLive(_8);
          StorageLive(_9);
          StorageLive(_10);
          StorageLive(_11);
          _11 = const "second";
          _10 = &(*_11);
          StorageLive(_12);
          StorageLive(_13);
-         _13 = &_2;
-         _12 = <String as Clone>::clone(move _13) -> [return: bb7, unwind: bb28];
+         _13 = &(((*_18) as variant#4).0: std::string::String);
+         _12 = <String as Clone>::clone(move _13) -> [return: bb7, unwind: bb19];
      }
  
      bb7: {
          StorageDead(_13);
          StorageLive(_14);
          StorageLive(_15);
-         _15 = Location::<'_>::caller() -> [return: bb8, unwind: bb24];
+         _15 = Location::<'_>::caller() -> [return: bb8, unwind: bb15];
      }
  
      bb8: {
          _14 = &(*_15);
          _9 = (move _10, move _12, move _14);
          StorageDead(_14);
          goto -> bb9;
      }
  
      bb9: {
          StorageDead(_12);
          StorageDead(_10);
-         _8 = yield(move _9) -> [resume: bb10, drop: bb15];
+         _0 = CoroutineState::<(&str, String, &Location<'_>), ()>::Yielded(move _9);
+         StorageDead(_8);
+         StorageDead(_9);
+         StorageDead(_11);
+         StorageDead(_15);
+         discriminant((*_18)) = 4;
+         return;
      }
  
      bb10: {
          goto -> bb11;
      }
  
      bb11: {
          StorageDead(_9);
-         drop(_8) -> [return: bb12, unwind: bb27];
+         drop(_8) -> [return: bb12, unwind: bb18];
      }
  
      bb12: {
          StorageDead(_15);
          StorageDead(_11);
          StorageDead(_8);
-         _0 = const ();
-         drop(_2) -> [return: bb13, unwind: bb36];
+         _16 = const ();
+         drop((((*_18) as variant#4).0: std::string::String)) -> [return: bb13, unwind: bb27];
      }
  
      bb13: {
-         drop(_1) -> [return: bb14, unwind: bb37];
+         goto -> bb29;
      }
  
      bb14: {
+         _0 = CoroutineState::<(&str, String, &Location<'_>), ()>::Complete(move _16);
+         discriminant((*_18)) = 1;
          return;
      }
  
-     bb15: {
-         goto -> bb16;
+     bb15 (cleanup): {
+         StorageDead(_14);
+         drop(_12) -> [return: bb16, unwind terminate(cleanup)];
      }
  
-     bb16: {
-         StorageDead(_9);
+     bb16 (cleanup): {
+         StorageDead(_12);
+         StorageDead(_10);
          goto -> bb17;
      }
  
-     bb17: {
-         StorageDead(_15);
-         StorageDead(_11);
-         StorageDead(_8);
-         goto -> bb21;
+     bb17 (cleanup): {
+         StorageDead(_9);
+         goto -> bb18;
      }
  
-     bb18: {
-         goto -> bb19;
+     bb18 (cleanup): {
+         StorageDead(_15);
+         goto -> bb20;
      }
  
-     bb19: {
-         StorageDead(_4);
+     bb19 (cleanup): {
+         StorageDead(_13);
+         StorageDead(_12);
+         StorageDead(_10);
+         StorageDead(_9);
          goto -> bb20;
      }
  
-     bb20: {
-         StorageDead(_3);
-         goto -> bb21;
+     bb20 (cleanup): {
+         StorageDead(_11);
+         StorageDead(_8);
+         goto -> bb26;
      }
  
-     bb21: {
-         drop(_2) -> [return: bb22, unwind: bb38];
+     bb21 (cleanup): {
+         StorageDead(_7);
+         drop(_5) -> [return: bb23, unwind terminate(cleanup)];
      }
  
-     bb22: {
-         drop(_1) -> [return: bb23, unwind: bb37];
+     bb22 (cleanup): {
+         StorageDead(_6);
+         goto -> bb23;
      }
  
-     bb23: {
-         coroutine_drop;
+     bb23 (cleanup): {
+         StorageDead(_5);
+         goto -> bb24;
      }
  
      bb24 (cleanup): {
-         StorageDead(_14);
-         drop(_12) -> [return: bb25, unwind terminate(cleanup)];
+         StorageDead(_4);
+         goto -> bb25;
      }
  
      bb25 (cleanup): {
-         StorageDead(_12);
-         StorageDead(_10);
+         StorageDead(_3);
          goto -> bb26;
      }
  
      bb26 (cleanup): {
-         StorageDead(_9);
-         goto -> bb27;
+         drop((((*_18) as variant#4).0: std::string::String)) -> [return: bb27, unwind terminate(cleanup)];
      }
  
      bb27 (cleanup): {
-         StorageDead(_15);
-         goto -> bb29;
+         goto -> bb28;
      }
  
      bb28 (cleanup): {
-         StorageDead(_13);
-         StorageDead(_12);
-         StorageDead(_10);
-         StorageDead(_9);
-         goto -> bb29;
+         goto -> bb30;
      }
  
-     bb29 (cleanup): {
-         StorageDead(_11);
-         StorageDead(_8);
-         goto -> bb35;
+     bb29: {
+         goto -> bb14;
      }
  
      bb30 (cleanup): {
-         StorageDead(_7);
-         drop(_5) -> [return: bb32, unwind terminate(cleanup)];
+         discriminant((*_18)) = 2;
+         resume;
      }
  
-     bb31 (cleanup): {
-         StorageDead(_6);
-         goto -> bb32;
+     bb31: {
+         StorageLive(_3);
+         StorageLive(_4);
+         _3 = move _2;
+         goto -> bb4;
      }
  
-     bb32 (cleanup): {
-         StorageDead(_5);
-         goto -> bb33;
+     bb32: {
+         StorageLive(_8);
+         StorageLive(_9);
+         StorageLive(_11);
+         StorageLive(_15);
+         _8 = move _2;
+         goto -> bb10;
      }
  
-     bb33 (cleanup): {
-         StorageDead(_4);
-         goto -> bb34;
+     bb33: {
+         assert(const false, "coroutine resumed after panicking") -> [success: bb33, unwind continue];
      }
  
-     bb34 (cleanup): {
-         StorageDead(_3);
-         goto -> bb35;
+     bb34: {
+         assert(const false, "coroutine resumed after completion") -> [success: bb34, unwind continue];
      }
  
-     bb35 (cleanup): {
-         drop(_2) -> [return: bb36, unwind terminate(cleanup)];
+     bb35: {
+         unreachable;
      }
  
-     bb36 (cleanup): {
-         drop(_1) -> [return: bb37, unwind terminate(cleanup)];
-     }
- 
-     bb37 (cleanup): {
-         resume;
-     }
- 
-     bb38 (cleanup): {
-         drop(_1) -> [return: bb37, unwind terminate(cleanup)];
+     bb36: {
+         (((*_18) as variant#4).0: std::string::String) = move _2;
+         StorageLive(_3);
+         StorageLive(_4);
+         StorageLive(_5);
+         StorageLive(_6);
+         _6 = &(((*_18) as variant#4).0: std::string::String);
+         _5 = <String as Clone>::clone(move _6) -> [return: bb1, unwind: bb22];
      }
  }
  
  ALLOC0 (size: 6, align: 1) {
      73 65 63 6f 6e 64                               │ second
  }
  
  ALLOC1 (size: 5, align: 1) {
      66 69 72 73 74                                  │ first
  }