// RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s #include "test.h" #include char *data = new char[10]; char *data1 = new char[10]; char *data2 = new char[10]; void *Thread1(void *x) { static volatile int size = 1; memcpy(data+5, data1, size); barrier_wait(&barrier); return NULL; } void *Thread2(void *x) { static volatile int size = 4; barrier_wait(&barrier); memcpy(data+3, data2, size); return NULL; } int main() { barrier_init(&barrier, 2); print_address("addr=", 1, &data[5]); pthread_t t[2]; pthread_create(&t[0], NULL, Thread1, NULL); pthread_create(&t[1], NULL, Thread2, NULL); pthread_join(t[0], NULL); pthread_join(t[1], NULL); return 0; } // CHECK: addr=[[ADDR:0x[0-9,a-f]+]] // CHECK: WARNING: ThreadSanitizer: data race // CHECK: Write of size 1 at [[ADDR]] by thread T2: // CHECK: #0 {{(memcpy|memmove)}} // CHECK: #{{[12]}} Thread2 // CHECK: Previous write of size 1 at [[ADDR]] by thread T1: // CHECK: #0 {{(memcpy|memmove)}} // CHECK: #{{[12]}} Thread1