From 1fcb475271571659f15b7a47ef0d4de30d7cc680 Mon Sep 17 00:00:00 2001
From: Keith Yeung <kungfukeith11@gmail.com>
Date: Mon, 21 May 2018 21:45:15 -0700
Subject: [PATCH] Micro-optimization on PR#50697

---
 src/librustc_mir/borrow_check/mod.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/librustc_mir/borrow_check/mod.rs b/src/librustc_mir/borrow_check/mod.rs
index 5d6d4619c5e..4ec75d3b5ec 100644
--- a/src/librustc_mir/borrow_check/mod.rs
+++ b/src/librustc_mir/borrow_check/mod.rs
@@ -1853,6 +1853,7 @@ fn add_used_mut<'d>(
                     for index in ii {
                         if flow_state.ever_inits.contains(index) {
                             self.used_mut.insert(*local);
+                            break;
                         }
                     }
                 }
-- 
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