1*bcaeed49SFangrui Song // RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
2*bcaeed49SFangrui Song #include "test.h"
3*bcaeed49SFangrui Song
Thread1(void * x)4*bcaeed49SFangrui Song void *Thread1(void *x) {
5*bcaeed49SFangrui Song int *p = (int*)x;
6*bcaeed49SFangrui Song p[0] = 1;
7*bcaeed49SFangrui Song barrier_wait(&barrier);
8*bcaeed49SFangrui Song return NULL;
9*bcaeed49SFangrui Song }
10*bcaeed49SFangrui Song
Thread2(void * x)11*bcaeed49SFangrui Song void *Thread2(void *x) {
12*bcaeed49SFangrui Song barrier_wait(&barrier);
13*bcaeed49SFangrui Song char *p = (char*)x;
14*bcaeed49SFangrui Song p[2] = 1;
15*bcaeed49SFangrui Song return NULL;
16*bcaeed49SFangrui Song }
17*bcaeed49SFangrui Song
main()18*bcaeed49SFangrui Song int main() {
19*bcaeed49SFangrui Song barrier_init(&barrier, 2);
20*bcaeed49SFangrui Song int *data = new int(42);
21*bcaeed49SFangrui Song print_address("ptr1=", 1, data);
22*bcaeed49SFangrui Song print_address("ptr2=", 1, (char*)data + 2);
23*bcaeed49SFangrui Song pthread_t t[2];
24*bcaeed49SFangrui Song pthread_create(&t[0], NULL, Thread1, data);
25*bcaeed49SFangrui Song pthread_create(&t[1], NULL, Thread2, data);
26*bcaeed49SFangrui Song pthread_join(t[0], NULL);
27*bcaeed49SFangrui Song pthread_join(t[1], NULL);
28*bcaeed49SFangrui Song delete data;
29*bcaeed49SFangrui Song }
30*bcaeed49SFangrui Song
31*bcaeed49SFangrui Song // CHECK: ptr1=[[PTR1:0x[0-9,a-f]+]]
32*bcaeed49SFangrui Song // CHECK: ptr2=[[PTR2:0x[0-9,a-f]+]]
33*bcaeed49SFangrui Song // CHECK: WARNING: ThreadSanitizer: data race
34*bcaeed49SFangrui Song // CHECK: Write of size 1 at [[PTR2]] by thread T2:
35*bcaeed49SFangrui Song // CHECK: Previous write of size 4 at [[PTR1]] by thread T1:
36