1 // RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
2 #include <pthread.h>
3 #include <stdlib.h>
4 #include <stdio.h>
5 #include "test.h"
6 
7 void *Thread1(void *p) {
8   *(int*)p = 42;
9   return 0;
10 }
11 
12 void *Thread2(void *p) {
13   *(int*)p = 44;
14   return 0;
15 }
16 
17 void *alloc() {
18   return malloc(99);
19 }
20 
21 void *AllocThread(void* arg) {
22   return alloc();
23 }
24 
25 int main() {
26   void *p = 0;
27   pthread_t t[2];
28   pthread_create(&t[0], 0, AllocThread, 0);
29   pthread_join(t[0], &p);
30   print_address("addr=", 1, p);
31   pthread_create(&t[0], 0, Thread1, (char*)p + 16);
32   pthread_create(&t[1], 0, Thread2, (char*)p + 16);
33   pthread_join(t[0], 0);
34   pthread_join(t[1], 0);
35   return 0;
36 }
37 
38 // CHECK: addr=[[ADDR:0x[0-9,a-f]+]]
39 // CHECK: WARNING: ThreadSanitizer: data race
40 // ...
41 // CHECK: Location is heap block of size 99 at [[ADDR]] allocated by thread T1:
42 // CHCEK:     #0 malloc
43 // CHECK:     #{{1|2}} alloc
44 // CHECK:     #{{2|3}} AllocThread
45 // ...
46 // CHECK:   Thread T1 (tid={{.*}}, finished) created by main thread at:
47 // CHECK:     #0 pthread_create
48 // CHECK:     #1 main
49