xref: /aosp_15_r20/external/compiler-rt/test/tsan/race_stress.cc (revision 7c3d14c8b49c529e04be81a3ce6f5cc23712e4c6) 
1*7c3d14c8STreehugger Robot // RUN: %clangxx_tsan -O1 %s -o %t && not %run %t 2>&1 | FileCheck %s
2*7c3d14c8STreehugger Robot #include "test.h"
3*7c3d14c8STreehugger Robot 
4*7c3d14c8STreehugger Robot const int kThreads = 16;
5*7c3d14c8STreehugger Robot const int kIters = 1000;
6*7c3d14c8STreehugger Robot 
7*7c3d14c8STreehugger Robot volatile int X = 0;
8*7c3d14c8STreehugger Robot 
thr(void * arg)9*7c3d14c8STreehugger Robot void *thr(void *arg) {
10*7c3d14c8STreehugger Robot   for (int i = 0; i < kIters; i++)
11*7c3d14c8STreehugger Robot     X++;
12*7c3d14c8STreehugger Robot   return 0;
13*7c3d14c8STreehugger Robot }
14*7c3d14c8STreehugger Robot 
main()15*7c3d14c8STreehugger Robot int main() {
16*7c3d14c8STreehugger Robot   pthread_t th[kThreads];
17*7c3d14c8STreehugger Robot   for (int i = 0; i < kThreads; i++)
18*7c3d14c8STreehugger Robot     pthread_create(&th[i], 0, thr, 0);
19*7c3d14c8STreehugger Robot   for (int i = 0; i < kThreads; i++)
20*7c3d14c8STreehugger Robot     pthread_join(th[i], 0);
21*7c3d14c8STreehugger Robot   fprintf(stderr, "DONE\n");
22*7c3d14c8STreehugger Robot }
23*7c3d14c8STreehugger Robot 
24*7c3d14c8STreehugger Robot // CHECK: ThreadSanitizer: data race
25*7c3d14c8STreehugger Robot // CHECK: DONE
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