xref: /aosp_15_r20/external/compiler-rt/test/tsan/suppress_same_stacks.cc (revision 7c3d14c8b49c529e04be81a3ce6f5cc23712e4c6) 
1*7c3d14c8STreehugger Robot // RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
2*7c3d14c8STreehugger Robot #include <pthread.h>
3*7c3d14c8STreehugger Robot 
4*7c3d14c8STreehugger Robot volatile int N;  // Prevent loop unrolling.
5*7c3d14c8STreehugger Robot int **data;
6*7c3d14c8STreehugger Robot 
Thread1(void * x)7*7c3d14c8STreehugger Robot void *Thread1(void *x) {
8*7c3d14c8STreehugger Robot   for (int i = 0; i < N; i++)
9*7c3d14c8STreehugger Robot     data[i][0] = 42;
10*7c3d14c8STreehugger Robot   return 0;
11*7c3d14c8STreehugger Robot }
12*7c3d14c8STreehugger Robot 
main()13*7c3d14c8STreehugger Robot int main() {
14*7c3d14c8STreehugger Robot   N = 4;
15*7c3d14c8STreehugger Robot   data = new int*[N];
16*7c3d14c8STreehugger Robot   for (int i = 0; i < N; i++)
17*7c3d14c8STreehugger Robot     data[i] = new int;
18*7c3d14c8STreehugger Robot   pthread_t t;
19*7c3d14c8STreehugger Robot   pthread_create(&t, 0, Thread1, 0);
20*7c3d14c8STreehugger Robot   Thread1(0);
21*7c3d14c8STreehugger Robot   pthread_join(t, 0);
22*7c3d14c8STreehugger Robot   for (int i = 0; i < N; i++)
23*7c3d14c8STreehugger Robot     delete data[i];
24*7c3d14c8STreehugger Robot   delete[] data;
25*7c3d14c8STreehugger Robot }
26*7c3d14c8STreehugger Robot 
27*7c3d14c8STreehugger Robot // CHECK: ThreadSanitizer: reported 1 warnings
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