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

- // MIR for `foo::{closure#0}::{closure#0}` before StateTransform
+ // MIR for `foo::{closure#0}::{closure#0}` after StateTransform
  
- fn foo::{closure#0}::{closure#0}(_1: {async block@$DIR/async_fn.rs:21:13: 21:18}, _2: std::future::ResumeTy) -> u32
- yields ()
-  {
+ fn foo::{closure#0}::{closure#0}(_1: Pin<&mut {async block@$DIR/async_fn.rs:21:13: 21:18}>, _2: &mut Context<'_>) -> Poll<u32> {
+     coroutine layout {
+         variant_fields = {
+             Unresumed(0): [],
+             Returned (1): [],
+             Panicked (2): [],
+         }
+         storage_conflicts = BitMatrix(0x0) {}
+     }
      debug _task_context => _2;
-     debug y => (*(_1.0: &u32));
-     debug z => (*(_1.1: &u32));
-     let mut _0: u32;
+     debug y => (*((*_9).0: &u32));
+     debug z => (*((*_9).1: &u32));
+     let mut _0: std::task::Poll<u32>;
      let mut _3: u32;
      let mut _4: u32;
      let mut _5: &u32;
      let mut _6: &u32;
+     let mut _7: u32;
+     let mut _8: u32;
+     let mut _9: &mut {async block@$DIR/async_fn.rs:21:13: 21:18};
  
      bb0: {
-         StorageLive(_3);
-         _5 = no_retag copy (_1.0: &u32);
-         _3 = copy (*_5);
-         StorageLive(_4);
-         _6 = no_retag copy (_1.1: &u32);
-         _4 = copy (*_6);
-         _0 = Add(move _3, move _4);
-         StorageDead(_4);
-         StorageDead(_3);
-         drop(_1) -> [return: bb1, unwind: bb2];
+         _9 = copy (_1.0: &mut {async block@$DIR/async_fn.rs:21:13: 21:18});
+         _8 = discriminant((*_9));
+         switchInt(move _8) -> [0: bb5, 1: bb3, otherwise: bb4];
      }
  
      bb1: {
+         _0 = Poll::<u32>::Ready(move _7);
+         discriminant((*_9)) = 1;
          return;
      }
  
-     bb2 (cleanup): {
-         resume;
+     bb2: {
+         goto -> bb1;
+     }
+ 
+     bb3: {
+         assert(const false, "`async fn` resumed after completion") -> [success: bb3, unwind continue];
+     }
+ 
+     bb4: {
+         unreachable;
+     }
+ 
+     bb5: {
+         StorageLive(_3);
+         _5 = no_retag copy ((*_9).0: &u32);
+         _3 = copy (*_5);
+         StorageLive(_4);
+         _6 = no_retag copy ((*_9).1: &u32);
+         _4 = copy (*_6);
+         _7 = Add(move _3, move _4);
+         StorageDead(_4);
+         StorageDead(_3);
+         goto -> bb2;
      }
  }