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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:18:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:18:58 +0000 |
commit | a4b7ed7a42c716ab9f05e351f003d589124fd55d (patch) | |
tree | b620cd3f223850b28716e474e80c58059dca5dd4 /tests/codegen/noalias-rwlockreadguard.rs | |
parent | Adding upstream version 1.67.1+dfsg1. (diff) | |
download | rustc-a4b7ed7a42c716ab9f05e351f003d589124fd55d.tar.xz rustc-a4b7ed7a42c716ab9f05e351f003d589124fd55d.zip |
Adding upstream version 1.68.2+dfsg1.upstream/1.68.2+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/codegen/noalias-rwlockreadguard.rs')
-rw-r--r-- | tests/codegen/noalias-rwlockreadguard.rs | 14 |
1 files changed, 14 insertions, 0 deletions
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>) {} |