restrict to coroutines again for perf

tmandry · tmandry · commit 4d04916f1b04 · 2026-04-09T02:05:32.000-04:00
diff --git a/compiler/rustc_mir_transform/src/remove_dead_drops.rs b/compiler/rustc_mir_transform/src/remove_dead_drops.rs
@@ -14,6 +14,10 @@ impl<'tcx> crate::MirPass<'tcx> for RemoveDeadDrops {
     }
 
     fn run_pass(&self, tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) {
+        if body.coroutine.is_none() {
+            return;
+        }
+
         let move_data = MoveData::gather_moves(body, tcx, |_| true);
 
         let mut maybe_init_cursor = MaybeInitializedPlaces::new(tcx, body, &move_data)

Original file line number	Diff line number	Diff line change
`@@ -14,6 +14,10 @@ impl<'tcx> crate::MirPass<'tcx> for RemoveDeadDrops {`
`14`	`14`	`}`
`15`	`15`
`16`	`16`	`fn run_pass(&self, tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) {`
	`17`	`+ if body.coroutine.is_none() {`
	`18`	`+ return;`
	`19`	`+ }`
	`20`	`+`
`17`	`21`	`let move_data = MoveData::gather_moves(body, tcx, \|_\| true);`
`18`	`22`
`19`	`23`	`let mut maybe_init_cursor = MaybeInitializedPlaces::new(tcx, body, &move_data)`