mirror of https://github.com/rust-lang/rust
15 lines
445 B
Rust
15 lines
445 B
Rust
//@ 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>) {}
|