1 // RUN: %clang_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s 2 3 #include "test.h" 4 5 int *mem; 6 Thread(void * x)7void *Thread(void *x) { 8 mem[0] = 42; 9 barrier_wait(&barrier); 10 return NULL; 11 } 12 main()13int main() { 14 barrier_init(&barrier, 2); 15 mem = (int*)malloc(100); 16 pthread_t t; 17 pthread_create(&t, 0, Thread, 0); 18 barrier_wait(&barrier); 19 free(mem); 20 pthread_join(t, NULL); 21 return 0; 22 } 23 24 // CHECK: WARNING: ThreadSanitizer: data race 25 // CHECK: Write of size 8 at {{.*}} by main thread{{.*}}: 26 // CHECK: #0 free 27 // CHECK: #{{(1|2)}} main 28 // CHECK: Previous write of size 4 at {{.*}} by thread T1{{.*}}: 29 // CHECK: #0 Thread 30