| // RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s |
| #include "test.h" |
| |
| void *Thread1(void *x) { |
| barrier_wait(&barrier); |
| int *p = (int*)x; |
| p[0] = 1; |
| return NULL; |
| } |
| |
| void *Thread2(void *x) { |
| char *p = (char*)x; |
| p[2] = 1; |
| barrier_wait(&barrier); |
| return NULL; |
| } |
| |
| int main() { |
| barrier_init(&barrier, 2); |
| int *data = new int(42); |
| print_address("ptr1=", 1, data); |
| print_address("ptr2=", 1, (char*)data + 2); |
| pthread_t t[2]; |
| pthread_create(&t[0], NULL, Thread1, data); |
| pthread_create(&t[1], NULL, Thread2, data); |
| pthread_join(t[0], NULL); |
| pthread_join(t[1], NULL); |
| delete data; |
| } |
| |
| // CHECK: ptr1=[[PTR1:0x[0-9,a-f]+]] |
| // CHECK: ptr2=[[PTR2:0x[0-9,a-f]+]] |
| // CHECK: WARNING: ThreadSanitizer: data race |
| // CHECK: Write of size 4 at [[PTR1]] by thread T1: |
| // CHECK: Previous write of size 1 at [[PTR2]] by thread T2: |