1 // RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t 2>&1 | FileCheck %s
7 void *MemCpyThread(void *a
) {
8 memcpy((int*)a
, z
, 16);
9 barrier_wait(&barrier
);
13 void *MemSetThread(void *a
) {
14 barrier_wait(&barrier
);
15 memset((int*)a
, 0, 16);
20 barrier_init(&barrier
, 2);
22 // Race on x between memcpy and memset
23 pthread_create(&t
[0], NULL
, MemCpyThread
, x
);
24 pthread_create(&t
[1], NULL
, MemSetThread
, x
);
25 pthread_join(t
[0], NULL
);
26 pthread_join(t
[1], NULL
);
27 fprintf(stderr
, "PASS\n");
31 // CHECK: WARNING: ThreadSanitizer: data race
32 // CHECK: #0 {{.*}}memset
33 // CHECK: #{{[12]}} MemSetThread
34 // CHECK: Previous write
35 // CHECK: #0 {{.*mem(cpy|move)}}
36 // CHECK: #{{[12]}} MemCpyThread