From 477846f491284973f1f3f8b4bf9c6d9deb6ad98e Mon Sep 17 00:00:00 2001
From: nils <48135649+Nilstrieb@users.noreply.github.com>
Date: Fri, 30 Sep 2022 14:11:18 +0200
Subject: [PATCH] Add comment explaining why we flush delayed bugs before
 codegen

---
 compiler/rustc_interface/src/queries.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/compiler/rustc_interface/src/queries.rs b/compiler/rustc_interface/src/queries.rs
index 60ed48d8988..05775f37647 100644
--- a/compiler/rustc_interface/src/queries.rs
+++ b/compiler/rustc_interface/src/queries.rs
@@ -246,6 +246,8 @@ pub fn ongoing_codegen(&'tcx self) -> Result<&Query<Box<dyn Any>>> {
                 // Don't do code generation if there were any errors
                 self.session().compile_status()?;
 
+                // If we have any delayed bugs, for example beacuse we created TyKind::Error earlier,
+                // it's likey that codegen will only cause more ICEs, obscuring the original problem
                 self.session().diagnostic().flush_delayed();
 
                 // Hook for UI tests.