From a4b7ed7a42c716ab9f05e351f003d589124fd55d Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 17 Apr 2024 14:18:58 +0200
Subject: Adding upstream version 1.68.2+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 tests/codegen/noalias-rwlockreadguard.rs | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 tests/codegen/noalias-rwlockreadguard.rs

(limited to 'tests/codegen/noalias-rwlockreadguard.rs')

diff --git a/tests/codegen/noalias-rwlockreadguard.rs b/tests/codegen/noalias-rwlockreadguard.rs
new file mode 100644
index 000000000..7f7b46c85
--- /dev/null
+++ b/tests/codegen/noalias-rwlockreadguard.rs
@@ -0,0 +1,14 @@
+// compile-flags: -O -C no-prepopulate-passes -Z mutable-noalias=yes
+
+#![crate_type = "lib"]
+
+use std::sync::{RwLock, RwLockReadGuard};
+
+// Make sure that `RwLockReadGuard` does not get a `noalias` attribute, because
+// the `RwLock` might alias writes after it is dropped.
+
+// CHECK-LABEL: @maybe_aliased(
+// CHECK-NOT: noalias
+// CHECK-SAME: %_data
+#[no_mangle]
+pub unsafe fn maybe_aliased(_: RwLockReadGuard<'_, i32>, _data: &RwLock<i32>) {}
-- 
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