1 files changed, 21 insertions, 12 deletions
diff --git a/compiler/rustc_mir_transform/src/pass_manager.rs b/compiler/rustc_mir_transform/src/pass_manager.rs
index 5abb2f3d041..a8aba29adcd 100644
--- a/compiler/rustc_mir_transform/src/pass_manager.rs
+++ b/compiler/rustc_mir_transform/src/pass_manager.rs
@@ -83,6 +83,25 @@ pub fn run_passes<'tcx>(
     run_passes_inner(tcx, body, passes, phase_change, true);
 }
 
+pub fn should_run_pass<'tcx, P>(tcx: TyCtxt<'tcx>, pass: &P) -> bool
+where
+    P: MirPass<'tcx> + ?Sized,
+{
+    let name = pass.name();
+
+    let overridden_passes = &tcx.sess.opts.unstable_opts.mir_enable_passes;
+    let overridden =
+        overridden_passes.iter().rev().find(|(s, _)| s == &*name).map(|(_name, polarity)| {
+            trace!(
+                pass = %name,
+                "{} as requested by flag",
+                if *polarity { "Running" } else { "Not running" },
+            );
+            *polarity
+        });
+    overridden.unwrap_or_else(|| pass.is_enabled(&tcx.sess))
+}
+
 fn run_passes_inner<'tcx>(
     tcx: TyCtxt<'tcx>,
     body: &mut Body<'tcx>,
@@ -100,19 +119,9 @@ fn run_passes_inner<'tcx>(
         for pass in passes {
             let name = pass.name();
 
-            let overridden = overridden_passes.iter().rev().find(|(s, _)| s == &*name).map(
-                |(_name, polarity)| {
-                    trace!(
-                        pass = %name,
-                        "{} as requested by flag",
-                        if *polarity { "Running" } else { "Not running" },
-                    );
-                    *polarity
-                },
-            );
-            if !overridden.unwrap_or_else(|| pass.is_enabled(&tcx.sess)) {
+            if !should_run_pass(tcx, *pass) {
                 continue;
-            }
+            };
 
             let dump_enabled = pass.is_mir_dump_enabled();