xref: /aosp_15_r20/external/compiler-rt/test/tsan/heap_race.cc (revision 7c3d14c8b49c529e04be81a3ce6f5cc23712e4c6)
1*7c3d14c8STreehugger Robot // RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
2*7c3d14c8STreehugger Robot #include "test.h"
3*7c3d14c8STreehugger Robot #include <pthread.h>
4*7c3d14c8STreehugger Robot #include <stdio.h>
5*7c3d14c8STreehugger Robot #include <stddef.h>
6*7c3d14c8STreehugger Robot 
Thread(void * a)7*7c3d14c8STreehugger Robot void *Thread(void *a) {
8*7c3d14c8STreehugger Robot   ((int*)a)[0]++;
9*7c3d14c8STreehugger Robot   barrier_wait(&barrier);
10*7c3d14c8STreehugger Robot   return NULL;
11*7c3d14c8STreehugger Robot }
12*7c3d14c8STreehugger Robot 
main()13*7c3d14c8STreehugger Robot int main() {
14*7c3d14c8STreehugger Robot   barrier_init(&barrier, 2);
15*7c3d14c8STreehugger Robot   int *p = new int(42);
16*7c3d14c8STreehugger Robot   pthread_t t;
17*7c3d14c8STreehugger Robot   pthread_create(&t, NULL, Thread, p);
18*7c3d14c8STreehugger Robot   barrier_wait(&barrier);
19*7c3d14c8STreehugger Robot   p[0]++;
20*7c3d14c8STreehugger Robot   pthread_join(t, NULL);
21*7c3d14c8STreehugger Robot   delete p;
22*7c3d14c8STreehugger Robot }
23*7c3d14c8STreehugger Robot 
24*7c3d14c8STreehugger Robot // CHECK: WARNING: ThreadSanitizer: data race
25