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1 // RUN: %clangxx_tsan -O1 %s -o %t && %env_tsan_opts=print_full_thread_history=true %deflake %run %t 2>&1 | FileCheck %s
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2
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3 #include "test.h"
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4
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5 int Global;
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6
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7 void *Thread2(void *x) {
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8 barrier_wait(&barrier);
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9 Global++;
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10 return NULL;
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11 }
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12
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13 void *Thread3(void *x) {
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14 Global--;
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15 barrier_wait(&barrier);
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16 return NULL;
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17 }
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18
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19 void *Thread1(void *x) {
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20 pthread_t t[2];
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21 pthread_create(&t[0], NULL, Thread2, NULL);
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22 pthread_create(&t[1], NULL, Thread3, NULL);
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23 pthread_join(t[0], NULL);
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24 pthread_join(t[1], NULL);
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25 return NULL;
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26 }
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27
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28 int main() {
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29 barrier_init(&barrier, 2);
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30 pthread_t t;
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31 pthread_create(&t, NULL, Thread1, NULL);
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32 pthread_join(t, NULL);
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33 return 0;
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34 }
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35
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36 // CHECK: WARNING: ThreadSanitizer: data race
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37 // CHECK: Thread T2 {{.*}} created by thread T1 at
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38 // CHECK: Thread T3 {{.*}} created by thread T1 at:
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39 // CHECK: Thread T1 {{.*}} created by main thread at:
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40 // CHECK: SUMMARY: ThreadSanitizer: data race{{.*}}
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