1 // RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s 2 #include "test.h" 3 4 void *Thread1(void *x) { 5 int *p = (int*)x; 6 p[0] = 1; 7 barrier_wait(&barrier); 8 return NULL; 9 } 10 11 void *Thread2(void *x) { 12 barrier_wait(&barrier); 13 char *p = (char*)x; 14 p[2] = 1; 15 return NULL; 16 } 17 18 int main() { 19 barrier_init(&barrier, 2); 20 int *data = new int(42); 21 print_address("ptr1=", 1, data); 22 print_address("ptr2=", 1, (char*)data + 2); 23 pthread_t t[2]; 24 pthread_create(&t[0], NULL, Thread1, data); 25 pthread_create(&t[1], NULL, Thread2, data); 26 pthread_join(t[0], NULL); 27 pthread_join(t[1], NULL); 28 delete data; 29 } 30 31 // CHECK: ptr1=[[PTR1:0x[0-9,a-f]+]] 32 // CHECK: ptr2=[[PTR2:0x[0-9,a-f]+]] 33 // CHECK: WARNING: ThreadSanitizer: data race 34 // CHECK: Write of size 1 at [[PTR2]] by thread T2: 35 // CHECK: Previous write of size 4 at [[PTR1]] by thread T1: 36
