From 116172d1802995b2eb4d1c17a7762d9c8840a198 Mon Sep 17 00:00:00 2001
From: hyd-dev <yd-huang@outlook.com>
Date: Tue, 25 May 2021 03:51:41 +0800
Subject: [PATCH] Add a comment

---
 compiler/rustc_mir/src/interpret/terminator.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/compiler/rustc_mir/src/interpret/terminator.rs b/compiler/rustc_mir/src/interpret/terminator.rs
index 305d41f5eeb..1ee56ca3fc5 100644
--- a/compiler/rustc_mir/src/interpret/terminator.rs
+++ b/compiler/rustc_mir/src/interpret/terminator.rs
@@ -319,6 +319,7 @@ fn eval_fn_call(
                     && !self
                         .fn_can_unwind(self.tcx.codegen_fn_attrs(callee_def_id).flags, callee_abi)
                 {
+                    // The callee cannot unwind.
                     unwind = StackPopUnwind::NotAllowed;
                 }