File: noalias-rwlockreadguard.rs

package info (click to toggle)
rustc 1.88.0%2Bdfsg1-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 934,128 kB
  • sloc: xml: 158,127; python: 36,062; javascript: 19,855; sh: 19,700; cpp: 18,947; ansic: 12,993; asm: 4,792; makefile: 690; lisp: 29; perl: 29; ruby: 19; sql: 11
file content (14 lines) | stat: -rw-r--r-- 456 bytes parent folder | download | duplicates (11) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
 
//@ compile-flags: -Copt-level=3 -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>) {}