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-rw-r--r--src/tools/miri/src/helpers.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/tools/miri/src/helpers.rs b/src/tools/miri/src/helpers.rs
index 958ed50496b..70971cdc20e 100644
--- a/src/tools/miri/src/helpers.rs
+++ b/src/tools/miri/src/helpers.rs
@@ -968,6 +968,7 @@ impl<'mir, 'tcx> MiriMachine<'mir, 'tcx> {
         self.threads.active_thread_ref().top_user_relevant_frame()
     }
 
+    /// This is the source of truth for the `is_user_relevant` flag in our `FrameExtra`.
     pub fn is_user_relevant(&self, frame: &Frame<'mir, 'tcx, Provenance>) -> bool {
         let def_id = frame.instance.def_id();
         (def_id.is_local() || self.local_crates.contains(&def_id.krate))