From a4f2a311db7622f73d6c0fa29ac0397064a75686 Mon Sep 17 00:00:00 2001
From: Michael Goulet <michael@errs.io>
Date: Wed, 28 Aug 2024 18:28:46 -0400
Subject: [PATCH 1/3] Don't ICE when dumping MIR of a synthetic coroutine body

---
 compiler/rustc_middle/src/mir/pretty.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/compiler/rustc_middle/src/mir/pretty.rs b/compiler/rustc_middle/src/mir/pretty.rs
index 9906be60e3e95..a98e6943d68ee 100644
--- a/compiler/rustc_middle/src/mir/pretty.rs
+++ b/compiler/rustc_middle/src/mir/pretty.rs
@@ -612,7 +612,9 @@ fn write_mir_sig(tcx: TyCtxt<'_>, body: &Body<'_>, w: &mut dyn io::Write) -> io:
     let def_id = body.source.def_id();
     let kind = tcx.def_kind(def_id);
     let is_function = match kind {
-        DefKind::Fn | DefKind::AssocFn | DefKind::Ctor(..) => true,
+        DefKind::Fn | DefKind::AssocFn | DefKind::Ctor(..) | DefKind::SyntheticCoroutineBody => {
+            true
+        }
         _ => tcx.is_closure_like(def_id),
     };
     match (kind, body.source.promoted) {

From 5525043ac8b2b84239198778e6bb87f4dba98a7b Mon Sep 17 00:00:00 2001
From: Michael Goulet <michael@errs.io>
Date: Wed, 28 Aug 2024 18:20:49 -0400
Subject: [PATCH 2/3] Rename dump of coroutine by-move-body to be more
 consistent, adjust test

---
 .../rustc_mir_transform/src/coroutine/by_move_body.rs  |  2 +-
 ...losure#0}-{closure#0}.built.after.panic-unwind.mir} |  4 ++--
 ...losure#0}-{closure#0}.built.after.panic-unwind.mir} |  8 ++++----
 ...ure#0}.coroutine_closure_by_move.0.panic-unwind.mir |  6 +++---
 ...losure#0}-{closure#0}.built.after.panic-unwind.mir} |  4 ++--
 ...losure#1}-{closure#0}.built.after.panic-unwind.mir} |  4 ++--
 ...ure#1}.coroutine_closure_by_move.0.panic-unwind.mir |  6 +++---
 ...sure#1}.coroutine_closure_by_ref.0.panic-unwind.mir |  6 +++---
 tests/mir-opt/async_closure_shims.rs                   | 10 ++++++----
 9 files changed, 26 insertions(+), 24 deletions(-)
 rename tests/mir-opt/{async_closure_shims.main-{closure#0}-{closure#0}-{closure#0}.coroutine_by_move.0.panic-unwind.mir => async_closure_shims.main-{closure#0}-{closure#0}-{closure#0}-{closure#0}.built.after.panic-unwind.mir} (78%)
 rename tests/mir-opt/{async_closure_shims.main-{closure#0}-{closure#0}-{closure#0}.coroutine_by_move.0.panic-abort.mir => async_closure_shims.main-{closure#0}-{closure#0}-{closure#0}.built.after.panic-unwind.mir} (81%)
 rename tests/mir-opt/{async_closure_shims.main-{closure#0}-{closure#1}-{closure#0}.coroutine_by_move.0.panic-unwind.mir => async_closure_shims.main-{closure#0}-{closure#1}-{closure#0}-{closure#0}.built.after.panic-unwind.mir} (79%)
 rename tests/mir-opt/{async_closure_shims.main-{closure#0}-{closure#1}-{closure#0}.coroutine_by_move.0.panic-abort.mir => async_closure_shims.main-{closure#0}-{closure#1}-{closure#0}.built.after.panic-unwind.mir} (86%)

diff --git a/compiler/rustc_mir_transform/src/coroutine/by_move_body.rs b/compiler/rustc_mir_transform/src/coroutine/by_move_body.rs
index ebe8d2eff4ff3..79cdca5d937fd 100644
--- a/compiler/rustc_mir_transform/src/coroutine/by_move_body.rs
+++ b/compiler/rustc_mir_transform/src/coroutine/by_move_body.rs
@@ -207,11 +207,11 @@ pub fn coroutine_by_move_body_def_id<'tcx>(
 
     let mut by_move_body = body.clone();
     MakeByMoveBody { tcx, field_remapping, by_move_coroutine_ty }.visit_body(&mut by_move_body);
-    dump_mir(tcx, false, "coroutine_by_move", &0, &by_move_body, |_, _| Ok(()));
 
     let body_def = tcx.create_def(coroutine_def_id, kw::Empty, DefKind::SyntheticCoroutineBody);
     by_move_body.source =
         mir::MirSource::from_instance(InstanceKind::Item(body_def.def_id().to_def_id()));
+    dump_mir(tcx, false, "built", &"after", &by_move_body, |_, _| Ok(()));
 
     // Inherited from the by-ref coroutine.
     body_def.codegen_fn_attrs(tcx.codegen_fn_attrs(coroutine_def_id).clone());
diff --git a/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#0}-{closure#0}.coroutine_by_move.0.panic-unwind.mir b/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#0}-{closure#0}-{closure#0}.built.after.panic-unwind.mir
similarity index 78%
rename from tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#0}-{closure#0}.coroutine_by_move.0.panic-unwind.mir
rename to tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#0}-{closure#0}-{closure#0}.built.after.panic-unwind.mir
index 1f5bb551b8e01..80def6c89a190 100644
--- a/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#0}-{closure#0}.coroutine_by_move.0.panic-unwind.mir
+++ b/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#0}-{closure#0}-{closure#0}.built.after.panic-unwind.mir
@@ -1,6 +1,6 @@
-// MIR for `main::{closure#0}::{closure#0}::{closure#0}` 0 coroutine_by_move
+// MIR for `main::{closure#0}::{closure#0}::{closure#0}::{closure#0}` after built
 
-fn main::{closure#0}::{closure#0}::{closure#0}(_1: {async closure body@$DIR/async_closure_shims.rs:53:53: 56:10}, _2: ResumeTy) -> ()
+fn main::{closure#0}::{closure#0}::{closure#0}::{closure#0}(_1: {async closure body@$DIR/async_closure_shims.rs:55:53: 58:10}, _2: ResumeTy) -> ()
 yields ()
  {
     debug _task_context => _2;
diff --git a/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#0}-{closure#0}.coroutine_by_move.0.panic-abort.mir b/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#0}-{closure#0}.built.after.panic-unwind.mir
similarity index 81%
rename from tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#0}-{closure#0}.coroutine_by_move.0.panic-abort.mir
rename to tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#0}-{closure#0}.built.after.panic-unwind.mir
index 1f5bb551b8e01..d273512b91fdb 100644
--- a/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#0}-{closure#0}.coroutine_by_move.0.panic-abort.mir
+++ b/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#0}-{closure#0}.built.after.panic-unwind.mir
@@ -1,11 +1,11 @@
-// MIR for `main::{closure#0}::{closure#0}::{closure#0}` 0 coroutine_by_move
+// MIR for `main::{closure#0}::{closure#0}::{closure#0}` after built
 
-fn main::{closure#0}::{closure#0}::{closure#0}(_1: {async closure body@$DIR/async_closure_shims.rs:53:53: 56:10}, _2: ResumeTy) -> ()
+fn main::{closure#0}::{closure#0}::{closure#0}(_1: {async closure body@$DIR/async_closure_shims.rs:55:53: 58:10}, _2: ResumeTy) -> ()
 yields ()
  {
     debug _task_context => _2;
     debug a => (_1.0: i32);
-    debug b => (_1.1: i32);
+    debug b => (*(_1.1: &i32));
     let mut _0: ();
     let _3: i32;
     scope 1 {
@@ -28,7 +28,7 @@ yields ()
         _4 = &_3;
         FakeRead(ForLet(None), _4);
         StorageLive(_5);
-        _5 = &(_1.1: i32);
+        _5 = &(*(_1.1: &i32));
         FakeRead(ForLet(None), _5);
         _0 = const ();
         StorageDead(_5);
diff --git a/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#0}.coroutine_closure_by_move.0.panic-unwind.mir b/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#0}.coroutine_closure_by_move.0.panic-unwind.mir
index a984845fd2c11..ce1d06ce1d3e9 100644
--- a/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#0}.coroutine_closure_by_move.0.panic-unwind.mir
+++ b/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#0}.coroutine_closure_by_move.0.panic-unwind.mir
@@ -1,10 +1,10 @@
 // MIR for `main::{closure#0}::{closure#0}` 0 coroutine_closure_by_move
 
-fn main::{closure#0}::{closure#0}(_1: {async closure@$DIR/async_closure_shims.rs:53:33: 53:52}, _2: i32) -> {async closure body@$DIR/async_closure_shims.rs:53:53: 56:10} {
-    let mut _0: {async closure body@$DIR/async_closure_shims.rs:53:53: 56:10};
+fn main::{closure#0}::{closure#0}(_1: {async closure@$DIR/async_closure_shims.rs:55:33: 55:52}, _2: i32) -> {async closure body@$DIR/async_closure_shims.rs:55:53: 58:10} {
+    let mut _0: {async closure body@$DIR/async_closure_shims.rs:55:53: 58:10};
 
     bb0: {
-        _0 = {coroutine@$DIR/async_closure_shims.rs:53:53: 56:10 (#0)} { a: move _2, b: move (_1.0: i32) };
+        _0 = {coroutine@$DIR/async_closure_shims.rs:55:53: 58:10 (#0)} { a: move _2, b: move (_1.0: i32) };
         return;
     }
 }
diff --git a/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}-{closure#0}.coroutine_by_move.0.panic-unwind.mir b/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}-{closure#0}-{closure#0}.built.after.panic-unwind.mir
similarity index 79%
rename from tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}-{closure#0}.coroutine_by_move.0.panic-unwind.mir
rename to tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}-{closure#0}-{closure#0}.built.after.panic-unwind.mir
index 17fa93148064f..cea330cf2f7f4 100644
--- a/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}-{closure#0}.coroutine_by_move.0.panic-unwind.mir
+++ b/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}-{closure#0}-{closure#0}.built.after.panic-unwind.mir
@@ -1,6 +1,6 @@
-// MIR for `main::{closure#0}::{closure#1}::{closure#0}` 0 coroutine_by_move
+// MIR for `main::{closure#0}::{closure#1}::{closure#0}::{closure#0}` after built
 
-fn main::{closure#0}::{closure#1}::{closure#0}(_1: {async closure body@$DIR/async_closure_shims.rs:62:48: 65:10}, _2: ResumeTy) -> ()
+fn main::{closure#0}::{closure#1}::{closure#0}::{closure#0}(_1: {async closure body@$DIR/async_closure_shims.rs:64:48: 67:10}, _2: ResumeTy) -> ()
 yields ()
  {
     debug _task_context => _2;
diff --git a/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}-{closure#0}.coroutine_by_move.0.panic-abort.mir b/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}-{closure#0}.built.after.panic-unwind.mir
similarity index 86%
rename from tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}-{closure#0}.coroutine_by_move.0.panic-abort.mir
rename to tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}-{closure#0}.built.after.panic-unwind.mir
index 17fa93148064f..b4765c0b74ca8 100644
--- a/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}-{closure#0}.coroutine_by_move.0.panic-abort.mir
+++ b/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}-{closure#0}.built.after.panic-unwind.mir
@@ -1,6 +1,6 @@
-// MIR for `main::{closure#0}::{closure#1}::{closure#0}` 0 coroutine_by_move
+// MIR for `main::{closure#0}::{closure#1}::{closure#0}` after built
 
-fn main::{closure#0}::{closure#1}::{closure#0}(_1: {async closure body@$DIR/async_closure_shims.rs:62:48: 65:10}, _2: ResumeTy) -> ()
+fn main::{closure#0}::{closure#1}::{closure#0}(_1: {async closure body@$DIR/async_closure_shims.rs:64:48: 67:10}, _2: ResumeTy) -> ()
 yields ()
  {
     debug _task_context => _2;
diff --git a/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}.coroutine_closure_by_move.0.panic-unwind.mir b/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}.coroutine_closure_by_move.0.panic-unwind.mir
index aab9f7b03b9ab..8452c79bf41bb 100644
--- a/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}.coroutine_closure_by_move.0.panic-unwind.mir
+++ b/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}.coroutine_closure_by_move.0.panic-unwind.mir
@@ -1,10 +1,10 @@
 // MIR for `main::{closure#0}::{closure#1}` 0 coroutine_closure_by_move
 
-fn main::{closure#0}::{closure#1}(_1: {async closure@$DIR/async_closure_shims.rs:62:33: 62:47}, _2: i32) -> {async closure body@$DIR/async_closure_shims.rs:62:48: 65:10} {
-    let mut _0: {async closure body@$DIR/async_closure_shims.rs:62:48: 65:10};
+fn main::{closure#0}::{closure#1}(_1: {async closure@$DIR/async_closure_shims.rs:64:33: 64:47}, _2: i32) -> {async closure body@$DIR/async_closure_shims.rs:64:48: 67:10} {
+    let mut _0: {async closure body@$DIR/async_closure_shims.rs:64:48: 67:10};
 
     bb0: {
-        _0 = {coroutine@$DIR/async_closure_shims.rs:62:48: 65:10 (#0)} { a: move _2, b: move (_1.0: &i32) };
+        _0 = {coroutine@$DIR/async_closure_shims.rs:64:48: 67:10 (#0)} { a: move _2, b: move (_1.0: &i32) };
         return;
     }
 }
diff --git a/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}.coroutine_closure_by_ref.0.panic-unwind.mir b/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}.coroutine_closure_by_ref.0.panic-unwind.mir
index 3fdc81791deef..08abe7197224c 100644
--- a/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}.coroutine_closure_by_ref.0.panic-unwind.mir
+++ b/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}.coroutine_closure_by_ref.0.panic-unwind.mir
@@ -1,10 +1,10 @@
 // MIR for `main::{closure#0}::{closure#1}` 0 coroutine_closure_by_ref
 
-fn main::{closure#0}::{closure#1}(_1: &{async closure@$DIR/async_closure_shims.rs:62:33: 62:47}, _2: i32) -> {async closure body@$DIR/async_closure_shims.rs:62:48: 65:10} {
-    let mut _0: {async closure body@$DIR/async_closure_shims.rs:62:48: 65:10};
+fn main::{closure#0}::{closure#1}(_1: &{async closure@$DIR/async_closure_shims.rs:64:33: 64:47}, _2: i32) -> {async closure body@$DIR/async_closure_shims.rs:64:48: 67:10} {
+    let mut _0: {async closure body@$DIR/async_closure_shims.rs:64:48: 67:10};
 
     bb0: {
-        _0 = {coroutine@$DIR/async_closure_shims.rs:62:48: 65:10 (#0)} { a: move _2, b: copy ((*_1).0: &i32) };
+        _0 = {coroutine@$DIR/async_closure_shims.rs:64:48: 67:10 (#0)} { a: move _2, b: copy ((*_1).0: &i32) };
         return;
     }
 }
diff --git a/tests/mir-opt/async_closure_shims.rs b/tests/mir-opt/async_closure_shims.rs
index 57c55ef055cd7..6a3e1d777d808 100644
--- a/tests/mir-opt/async_closure_shims.rs
+++ b/tests/mir-opt/async_closure_shims.rs
@@ -22,7 +22,7 @@ pub fn block_on<T>(fut: impl Future<Output = T>) -> T {
     }
 }
 
-async fn call(f: &mut impl AsyncFn(i32)) {
+async fn call(f: &impl AsyncFn(i32)) {
     f(0).await;
 }
 
@@ -43,10 +43,12 @@ async fn call_normal_mut<F: Future<Output = ()>>(f: &mut impl FnMut(i32) -> F) {
 }
 
 // EMIT_MIR async_closure_shims.main-{closure#0}-{closure#0}.coroutine_closure_by_move.0.mir
-// EMIT_MIR async_closure_shims.main-{closure#0}-{closure#0}-{closure#0}.coroutine_by_move.0.mir
+// EMIT_MIR async_closure_shims.main-{closure#0}-{closure#0}-{closure#0}.built.after.mir
+// EMIT_MIR async_closure_shims.main-{closure#0}-{closure#0}-{closure#0}-{closure#0}.built.after.mir
 // EMIT_MIR async_closure_shims.main-{closure#0}-{closure#1}.coroutine_closure_by_ref.0.mir
 // EMIT_MIR async_closure_shims.main-{closure#0}-{closure#1}.coroutine_closure_by_move.0.mir
-// EMIT_MIR async_closure_shims.main-{closure#0}-{closure#1}-{closure#0}.coroutine_by_move.0.mir
+// EMIT_MIR async_closure_shims.main-{closure#0}-{closure#1}-{closure#0}.built.after.mir
+// EMIT_MIR async_closure_shims.main-{closure#0}-{closure#1}-{closure#0}-{closure#0}.built.after.mir
 pub fn main() {
     block_on(async {
         let b = 2i32;
@@ -54,7 +56,7 @@ pub fn main() {
             let a = &a;
             let b = &b;
         };
-        call(&mut async_closure).await;
+        call(&async_closure).await;
         call_mut(&mut async_closure).await;
         call_once(async_closure).await;
 

From 8860008e7f3bf67c420d2d1ce4bc333c08886eb2 Mon Sep 17 00:00:00 2001
From: Michael Goulet <michael@errs.io>
Date: Wed, 28 Aug 2024 18:27:41 -0400
Subject: [PATCH 3/3] Re-parent the by-move body

---
 .../rustc_mir_transform/src/coroutine/by_move_body.rs  |  3 ++-
 ...closure#0}-{closure#0}-{closure#0}.built.after.mir} |  2 +-
 ...closure#0}-{closure#0}-{closure#1}.built.after.mir} |  4 ++--
 ...ure#0}-{closure#0}.coroutine_closure_by_move.0.mir} |  6 +++---
 ...ure#0}.coroutine_closure_by_move.0.panic-unwind.mir | 10 ----------
 ...closure#0}-{closure#1}-{closure#0}.built.after.mir} |  2 +-
 ...closure#0}-{closure#1}-{closure#1}.built.after.mir} |  4 ++--
 ...ure#0}-{closure#1}.coroutine_closure_by_move.0.mir} |  6 +++---
 ...ure#1}.coroutine_closure_by_move.0.panic-unwind.mir | 10 ----------
 ...sure#0}-{closure#1}.coroutine_closure_by_ref.0.mir} |  6 +++---
 ...sure#1}.coroutine_closure_by_ref.0.panic-unwind.mir | 10 ----------
 tests/mir-opt/async_closure_shims.rs                   |  5 ++---
 12 files changed, 19 insertions(+), 49 deletions(-)
 rename tests/mir-opt/{async_closure_shims.main-{closure#0}-{closure#0}-{closure#0}.built.after.panic-unwind.mir => async_closure_shims.main-{closure#0}-{closure#0}-{closure#0}.built.after.mir} (93%)
 rename tests/mir-opt/{async_closure_shims.main-{closure#0}-{closure#0}-{closure#0}-{closure#0}.built.after.panic-unwind.mir => async_closure_shims.main-{closure#0}-{closure#0}-{closure#1}.built.after.mir} (78%)
 rename tests/mir-opt/{async_closure_shims.main-{closure#0}-{closure#0}.coroutine_closure_by_move.0.panic-abort.mir => async_closure_shims.main-{closure#0}-{closure#0}.coroutine_closure_by_move.0.mir} (60%)
 delete mode 100644 tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#0}.coroutine_closure_by_move.0.panic-unwind.mir
 rename tests/mir-opt/{async_closure_shims.main-{closure#0}-{closure#1}-{closure#0}.built.after.panic-unwind.mir => async_closure_shims.main-{closure#0}-{closure#1}-{closure#0}.built.after.mir} (93%)
 rename tests/mir-opt/{async_closure_shims.main-{closure#0}-{closure#1}-{closure#0}-{closure#0}.built.after.panic-unwind.mir => async_closure_shims.main-{closure#0}-{closure#1}-{closure#1}.built.after.mir} (79%)
 rename tests/mir-opt/{async_closure_shims.main-{closure#0}-{closure#1}.coroutine_closure_by_move.0.panic-abort.mir => async_closure_shims.main-{closure#0}-{closure#1}.coroutine_closure_by_move.0.mir} (60%)
 delete mode 100644 tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}.coroutine_closure_by_move.0.panic-unwind.mir
 rename tests/mir-opt/{async_closure_shims.main-{closure#0}-{closure#1}.coroutine_closure_by_ref.0.panic-abort.mir => async_closure_shims.main-{closure#0}-{closure#1}.coroutine_closure_by_ref.0.mir} (60%)
 delete mode 100644 tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}.coroutine_closure_by_ref.0.panic-unwind.mir

diff --git a/compiler/rustc_mir_transform/src/coroutine/by_move_body.rs b/compiler/rustc_mir_transform/src/coroutine/by_move_body.rs
index 79cdca5d937fd..cf39c136b01a3 100644
--- a/compiler/rustc_mir_transform/src/coroutine/by_move_body.rs
+++ b/compiler/rustc_mir_transform/src/coroutine/by_move_body.rs
@@ -208,7 +208,8 @@ pub fn coroutine_by_move_body_def_id<'tcx>(
     let mut by_move_body = body.clone();
     MakeByMoveBody { tcx, field_remapping, by_move_coroutine_ty }.visit_body(&mut by_move_body);
 
-    let body_def = tcx.create_def(coroutine_def_id, kw::Empty, DefKind::SyntheticCoroutineBody);
+    // This will always be `{closure#1}`, since the original coroutine is `{closure#0}`.
+    let body_def = tcx.create_def(parent_def_id, kw::Empty, DefKind::SyntheticCoroutineBody);
     by_move_body.source =
         mir::MirSource::from_instance(InstanceKind::Item(body_def.def_id().to_def_id()));
     dump_mir(tcx, false, "built", &"after", &by_move_body, |_, _| Ok(()));
diff --git a/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#0}-{closure#0}.built.after.panic-unwind.mir b/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#0}-{closure#0}.built.after.mir
similarity index 93%
rename from tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#0}-{closure#0}.built.after.panic-unwind.mir
rename to tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#0}-{closure#0}.built.after.mir
index d273512b91fdb..7da33b8a094b3 100644
--- a/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#0}-{closure#0}.built.after.panic-unwind.mir
+++ b/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#0}-{closure#0}.built.after.mir
@@ -1,6 +1,6 @@
 // MIR for `main::{closure#0}::{closure#0}::{closure#0}` after built
 
-fn main::{closure#0}::{closure#0}::{closure#0}(_1: {async closure body@$DIR/async_closure_shims.rs:55:53: 58:10}, _2: ResumeTy) -> ()
+fn main::{closure#0}::{closure#0}::{closure#0}(_1: {async closure body@$DIR/async_closure_shims.rs:54:53: 57:10}, _2: ResumeTy) -> ()
 yields ()
  {
     debug _task_context => _2;
diff --git a/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#0}-{closure#0}-{closure#0}.built.after.panic-unwind.mir b/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#0}-{closure#1}.built.after.mir
similarity index 78%
rename from tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#0}-{closure#0}-{closure#0}.built.after.panic-unwind.mir
rename to tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#0}-{closure#1}.built.after.mir
index 80def6c89a190..a21e82ef5b633 100644
--- a/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#0}-{closure#0}-{closure#0}.built.after.panic-unwind.mir
+++ b/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#0}-{closure#1}.built.after.mir
@@ -1,6 +1,6 @@
-// MIR for `main::{closure#0}::{closure#0}::{closure#0}::{closure#0}` after built
+// MIR for `main::{closure#0}::{closure#0}::{closure#1}` after built
 
-fn main::{closure#0}::{closure#0}::{closure#0}::{closure#0}(_1: {async closure body@$DIR/async_closure_shims.rs:55:53: 58:10}, _2: ResumeTy) -> ()
+fn main::{closure#0}::{closure#0}::{closure#1}(_1: {async closure body@$DIR/async_closure_shims.rs:54:53: 57:10}, _2: ResumeTy) -> ()
 yields ()
  {
     debug _task_context => _2;
diff --git a/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#0}.coroutine_closure_by_move.0.panic-abort.mir b/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#0}.coroutine_closure_by_move.0.mir
similarity index 60%
rename from tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#0}.coroutine_closure_by_move.0.panic-abort.mir
rename to tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#0}.coroutine_closure_by_move.0.mir
index a984845fd2c11..c156636099519 100644
--- a/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#0}.coroutine_closure_by_move.0.panic-abort.mir
+++ b/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#0}.coroutine_closure_by_move.0.mir
@@ -1,10 +1,10 @@
 // MIR for `main::{closure#0}::{closure#0}` 0 coroutine_closure_by_move
 
-fn main::{closure#0}::{closure#0}(_1: {async closure@$DIR/async_closure_shims.rs:53:33: 53:52}, _2: i32) -> {async closure body@$DIR/async_closure_shims.rs:53:53: 56:10} {
-    let mut _0: {async closure body@$DIR/async_closure_shims.rs:53:53: 56:10};
+fn main::{closure#0}::{closure#0}(_1: {async closure@$DIR/async_closure_shims.rs:54:33: 54:52}, _2: i32) -> {async closure body@$DIR/async_closure_shims.rs:54:53: 57:10} {
+    let mut _0: {async closure body@$DIR/async_closure_shims.rs:54:53: 57:10};
 
     bb0: {
-        _0 = {coroutine@$DIR/async_closure_shims.rs:53:53: 56:10 (#0)} { a: move _2, b: move (_1.0: i32) };
+        _0 = {coroutine@$DIR/async_closure_shims.rs:54:53: 57:10 (#0)} { a: move _2, b: move (_1.0: i32) };
         return;
     }
 }
diff --git a/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#0}.coroutine_closure_by_move.0.panic-unwind.mir b/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#0}.coroutine_closure_by_move.0.panic-unwind.mir
deleted file mode 100644
index ce1d06ce1d3e9..0000000000000
--- a/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#0}.coroutine_closure_by_move.0.panic-unwind.mir
+++ /dev/null
@@ -1,10 +0,0 @@
-// MIR for `main::{closure#0}::{closure#0}` 0 coroutine_closure_by_move
-
-fn main::{closure#0}::{closure#0}(_1: {async closure@$DIR/async_closure_shims.rs:55:33: 55:52}, _2: i32) -> {async closure body@$DIR/async_closure_shims.rs:55:53: 58:10} {
-    let mut _0: {async closure body@$DIR/async_closure_shims.rs:55:53: 58:10};
-
-    bb0: {
-        _0 = {coroutine@$DIR/async_closure_shims.rs:55:53: 58:10 (#0)} { a: move _2, b: move (_1.0: i32) };
-        return;
-    }
-}
diff --git a/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}-{closure#0}.built.after.panic-unwind.mir b/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}-{closure#0}.built.after.mir
similarity index 93%
rename from tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}-{closure#0}.built.after.panic-unwind.mir
rename to tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}-{closure#0}.built.after.mir
index b4765c0b74ca8..a4a6a535a2313 100644
--- a/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}-{closure#0}.built.after.panic-unwind.mir
+++ b/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}-{closure#0}.built.after.mir
@@ -1,6 +1,6 @@
 // MIR for `main::{closure#0}::{closure#1}::{closure#0}` after built
 
-fn main::{closure#0}::{closure#1}::{closure#0}(_1: {async closure body@$DIR/async_closure_shims.rs:64:48: 67:10}, _2: ResumeTy) -> ()
+fn main::{closure#0}::{closure#1}::{closure#0}(_1: {async closure body@$DIR/async_closure_shims.rs:63:48: 66:10}, _2: ResumeTy) -> ()
 yields ()
  {
     debug _task_context => _2;
diff --git a/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}-{closure#0}-{closure#0}.built.after.panic-unwind.mir b/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}-{closure#1}.built.after.mir
similarity index 79%
rename from tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}-{closure#0}-{closure#0}.built.after.panic-unwind.mir
rename to tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}-{closure#1}.built.after.mir
index cea330cf2f7f4..69bba6f519414 100644
--- a/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}-{closure#0}-{closure#0}.built.after.panic-unwind.mir
+++ b/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}-{closure#1}.built.after.mir
@@ -1,6 +1,6 @@
-// MIR for `main::{closure#0}::{closure#1}::{closure#0}::{closure#0}` after built
+// MIR for `main::{closure#0}::{closure#1}::{closure#1}` after built
 
-fn main::{closure#0}::{closure#1}::{closure#0}::{closure#0}(_1: {async closure body@$DIR/async_closure_shims.rs:64:48: 67:10}, _2: ResumeTy) -> ()
+fn main::{closure#0}::{closure#1}::{closure#1}(_1: {async closure body@$DIR/async_closure_shims.rs:63:48: 66:10}, _2: ResumeTy) -> ()
 yields ()
  {
     debug _task_context => _2;
diff --git a/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}.coroutine_closure_by_move.0.panic-abort.mir b/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}.coroutine_closure_by_move.0.mir
similarity index 60%
rename from tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}.coroutine_closure_by_move.0.panic-abort.mir
rename to tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}.coroutine_closure_by_move.0.mir
index aab9f7b03b9ab..134fe145baeee 100644
--- a/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}.coroutine_closure_by_move.0.panic-abort.mir
+++ b/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}.coroutine_closure_by_move.0.mir
@@ -1,10 +1,10 @@
 // MIR for `main::{closure#0}::{closure#1}` 0 coroutine_closure_by_move
 
-fn main::{closure#0}::{closure#1}(_1: {async closure@$DIR/async_closure_shims.rs:62:33: 62:47}, _2: i32) -> {async closure body@$DIR/async_closure_shims.rs:62:48: 65:10} {
-    let mut _0: {async closure body@$DIR/async_closure_shims.rs:62:48: 65:10};
+fn main::{closure#0}::{closure#1}(_1: {async closure@$DIR/async_closure_shims.rs:63:33: 63:47}, _2: i32) -> {async closure body@$DIR/async_closure_shims.rs:63:48: 66:10} {
+    let mut _0: {async closure body@$DIR/async_closure_shims.rs:63:48: 66:10};
 
     bb0: {
-        _0 = {coroutine@$DIR/async_closure_shims.rs:62:48: 65:10 (#0)} { a: move _2, b: move (_1.0: &i32) };
+        _0 = {coroutine@$DIR/async_closure_shims.rs:63:48: 66:10 (#0)} { a: move _2, b: move (_1.0: &i32) };
         return;
     }
 }
diff --git a/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}.coroutine_closure_by_move.0.panic-unwind.mir b/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}.coroutine_closure_by_move.0.panic-unwind.mir
deleted file mode 100644
index 8452c79bf41bb..0000000000000
--- a/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}.coroutine_closure_by_move.0.panic-unwind.mir
+++ /dev/null
@@ -1,10 +0,0 @@
-// MIR for `main::{closure#0}::{closure#1}` 0 coroutine_closure_by_move
-
-fn main::{closure#0}::{closure#1}(_1: {async closure@$DIR/async_closure_shims.rs:64:33: 64:47}, _2: i32) -> {async closure body@$DIR/async_closure_shims.rs:64:48: 67:10} {
-    let mut _0: {async closure body@$DIR/async_closure_shims.rs:64:48: 67:10};
-
-    bb0: {
-        _0 = {coroutine@$DIR/async_closure_shims.rs:64:48: 67:10 (#0)} { a: move _2, b: move (_1.0: &i32) };
-        return;
-    }
-}
diff --git a/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}.coroutine_closure_by_ref.0.panic-abort.mir b/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}.coroutine_closure_by_ref.0.mir
similarity index 60%
rename from tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}.coroutine_closure_by_ref.0.panic-abort.mir
rename to tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}.coroutine_closure_by_ref.0.mir
index 3fdc81791deef..f267d93bd606c 100644
--- a/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}.coroutine_closure_by_ref.0.panic-abort.mir
+++ b/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}.coroutine_closure_by_ref.0.mir
@@ -1,10 +1,10 @@
 // MIR for `main::{closure#0}::{closure#1}` 0 coroutine_closure_by_ref
 
-fn main::{closure#0}::{closure#1}(_1: &{async closure@$DIR/async_closure_shims.rs:62:33: 62:47}, _2: i32) -> {async closure body@$DIR/async_closure_shims.rs:62:48: 65:10} {
-    let mut _0: {async closure body@$DIR/async_closure_shims.rs:62:48: 65:10};
+fn main::{closure#0}::{closure#1}(_1: &{async closure@$DIR/async_closure_shims.rs:63:33: 63:47}, _2: i32) -> {async closure body@$DIR/async_closure_shims.rs:63:48: 66:10} {
+    let mut _0: {async closure body@$DIR/async_closure_shims.rs:63:48: 66:10};
 
     bb0: {
-        _0 = {coroutine@$DIR/async_closure_shims.rs:62:48: 65:10 (#0)} { a: move _2, b: copy ((*_1).0: &i32) };
+        _0 = {coroutine@$DIR/async_closure_shims.rs:63:48: 66:10 (#0)} { a: move _2, b: copy ((*_1).0: &i32) };
         return;
     }
 }
diff --git a/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}.coroutine_closure_by_ref.0.panic-unwind.mir b/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}.coroutine_closure_by_ref.0.panic-unwind.mir
deleted file mode 100644
index 08abe7197224c..0000000000000
--- a/tests/mir-opt/async_closure_shims.main-{closure#0}-{closure#1}.coroutine_closure_by_ref.0.panic-unwind.mir
+++ /dev/null
@@ -1,10 +0,0 @@
-// MIR for `main::{closure#0}::{closure#1}` 0 coroutine_closure_by_ref
-
-fn main::{closure#0}::{closure#1}(_1: &{async closure@$DIR/async_closure_shims.rs:64:33: 64:47}, _2: i32) -> {async closure body@$DIR/async_closure_shims.rs:64:48: 67:10} {
-    let mut _0: {async closure body@$DIR/async_closure_shims.rs:64:48: 67:10};
-
-    bb0: {
-        _0 = {coroutine@$DIR/async_closure_shims.rs:64:48: 67:10 (#0)} { a: move _2, b: copy ((*_1).0: &i32) };
-        return;
-    }
-}
diff --git a/tests/mir-opt/async_closure_shims.rs b/tests/mir-opt/async_closure_shims.rs
index 6a3e1d777d808..b2168ba0c465b 100644
--- a/tests/mir-opt/async_closure_shims.rs
+++ b/tests/mir-opt/async_closure_shims.rs
@@ -1,6 +1,5 @@
 //@ edition:2021
 // skip-filecheck
-// EMIT_MIR_FOR_EACH_PANIC_STRATEGY
 
 #![feature(async_closure, noop_waker, async_fn_traits)]
 #![allow(unused)]
@@ -44,11 +43,11 @@ async fn call_normal_mut<F: Future<Output = ()>>(f: &mut impl FnMut(i32) -> F) {
 
 // EMIT_MIR async_closure_shims.main-{closure#0}-{closure#0}.coroutine_closure_by_move.0.mir
 // EMIT_MIR async_closure_shims.main-{closure#0}-{closure#0}-{closure#0}.built.after.mir
-// EMIT_MIR async_closure_shims.main-{closure#0}-{closure#0}-{closure#0}-{closure#0}.built.after.mir
+// EMIT_MIR async_closure_shims.main-{closure#0}-{closure#0}-{closure#1}.built.after.mir
 // EMIT_MIR async_closure_shims.main-{closure#0}-{closure#1}.coroutine_closure_by_ref.0.mir
 // EMIT_MIR async_closure_shims.main-{closure#0}-{closure#1}.coroutine_closure_by_move.0.mir
 // EMIT_MIR async_closure_shims.main-{closure#0}-{closure#1}-{closure#0}.built.after.mir
-// EMIT_MIR async_closure_shims.main-{closure#0}-{closure#1}-{closure#0}-{closure#0}.built.after.mir
+// EMIT_MIR async_closure_shims.main-{closure#0}-{closure#1}-{closure#1}.built.after.mir
 pub fn main() {
     block_on(async {
         let b = 2i32;