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comparison compiler-rt/test/tsan/race_on_barrier2.c @ 150:1d019706d866

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LLVM10
author anatofuz
date Thu, 13 Feb 2020 15:10:13 +0900
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147:c2174574ed3a 150:1d019706d866
1 // RUN: %clang_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
2
3 // pthread barriers are not available on OS X
4 // UNSUPPORTED: darwin
5
6 #include <pthread.h>
7 #include <stdio.h>
8 #include <stddef.h>
9 #include <unistd.h>
10
11 pthread_barrier_t B;
12 int Global;
13
14 void *Thread1(void *x) {
15 if (pthread_barrier_wait(&B) == PTHREAD_BARRIER_SERIAL_THREAD)
16 pthread_barrier_destroy(&B);
17 return NULL;
18 }
19
20 void *Thread2(void *x) {
21 if (pthread_barrier_wait(&B) == PTHREAD_BARRIER_SERIAL_THREAD)
22 pthread_barrier_destroy(&B);
23 return NULL;
24 }
25
26 int main() {
27 pthread_barrier_init(&B, 0, 2);
28 pthread_t t;
29 pthread_create(&t, NULL, Thread1, NULL);
30 Thread2(0);
31 pthread_join(t, NULL);
32 return 0;
33 }
34
35 // CHECK: WARNING: ThreadSanitizer: data race