xref: /aosp_15_r20/external/compiler-rt/test/tsan/simple_race.c (revision 7c3d14c8b49c529e04be81a3ce6f5cc23712e4c6) 
1*7c3d14c8STreehugger Robot // RUN: %clang_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
2*7c3d14c8STreehugger Robot #include "test.h"
3*7c3d14c8STreehugger Robot 
4*7c3d14c8STreehugger Robot int Global;
5*7c3d14c8STreehugger Robot 
Thread1(void * x)6*7c3d14c8STreehugger Robot void *Thread1(void *x) {
7*7c3d14c8STreehugger Robot   barrier_wait(&barrier);
8*7c3d14c8STreehugger Robot   Global = 42;
9*7c3d14c8STreehugger Robot   return NULL;
10*7c3d14c8STreehugger Robot }
11*7c3d14c8STreehugger Robot 
Thread2(void * x)12*7c3d14c8STreehugger Robot void *Thread2(void *x) {
13*7c3d14c8STreehugger Robot   Global = 43;
14*7c3d14c8STreehugger Robot   barrier_wait(&barrier);
15*7c3d14c8STreehugger Robot   return NULL;
16*7c3d14c8STreehugger Robot }
17*7c3d14c8STreehugger Robot 
main()18*7c3d14c8STreehugger Robot int main() {
19*7c3d14c8STreehugger Robot   barrier_init(&barrier, 2);
20*7c3d14c8STreehugger Robot   pthread_t t[2];
21*7c3d14c8STreehugger Robot   pthread_create(&t[0], NULL, Thread1, NULL);
22*7c3d14c8STreehugger Robot   pthread_create(&t[1], NULL, Thread2, NULL);
23*7c3d14c8STreehugger Robot   pthread_join(t[0], NULL);
24*7c3d14c8STreehugger Robot   pthread_join(t[1], NULL);
25*7c3d14c8STreehugger Robot   return 0;
26*7c3d14c8STreehugger Robot }
27*7c3d14c8STreehugger Robot 
28*7c3d14c8STreehugger Robot // CHECK: WARNING: ThreadSanitizer: data race
29*7c3d14c8STreehugger Robot 
30