File: 2010-01-13-MemBarrier.c

package info (click to toggle)
swiftlang 6.0.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 2,519,992 kB
  • sloc: cpp: 9,107,863; ansic: 2,040,022; asm: 1,135,751; python: 296,500; objc: 82,456; f90: 60,502; lisp: 34,951; pascal: 19,946; sh: 18,133; perl: 7,482; ml: 4,937; javascript: 4,117; makefile: 3,840; awk: 3,535; xml: 914; fortran: 619; cs: 573; ruby: 573
file content (10 lines) | stat: -rw-r--r-- 279 bytes parent folder | download | duplicates (4) 
1
2
3
4
5
6
7
8
9
10
 
// RUN: %clang_cc1 %s -emit-llvm -o - | FileCheck %s
// rdar://7536390

typedef unsigned __INT32_TYPE__ uint32_t;

unsigned t(uint32_t *ptr, uint32_t val) {
  // CHECK:      @t
  // CHECK: atomicrmw xchg ptr {{.*}} seq_cst, align 4
  return __sync_lock_test_and_set(ptr, val);
}