From 218caa410aa38c29984be31a5229b9fa717560ee Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 17 Apr 2024 14:19:13 +0200
Subject: Merging upstream version 1.68.2+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 tests/ui/mir/issue-77911.rs | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 tests/ui/mir/issue-77911.rs

(limited to 'tests/ui/mir/issue-77911.rs')

diff --git a/tests/ui/mir/issue-77911.rs b/tests/ui/mir/issue-77911.rs
new file mode 100644
index 000000000..acf4c2054
--- /dev/null
+++ b/tests/ui/mir/issue-77911.rs
@@ -0,0 +1,15 @@
+// compile-flags: -Z mir-opt-level=3
+// build-pass
+
+use std::fs::File;
+use std::io::{BufRead, BufReader};
+
+fn file_lines() -> impl Iterator<Item = String> {
+    BufReader::new(File::open("").unwrap())
+        .lines()
+        .map(Result::unwrap)
+}
+
+fn main() {
+    for _ in file_lines() {}
+}
-- 
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