1*bcaeed49SFangrui Song // RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t 2>&1 | FileCheck %s 2*bcaeed49SFangrui Song 3*bcaeed49SFangrui Song // Also check that atomics instrumentation can be configured by either driver or 4*bcaeed49SFangrui Song // legacy flags: 5*bcaeed49SFangrui Song 6*bcaeed49SFangrui Song // RUN: %clangxx_tsan -O1 %s -o %t -fno-sanitize-thread-atomics && not %deflake %run %t 2>&1 \ 7*bcaeed49SFangrui Song // RUN: | FileCheck --allow-empty --check-prefix=CHECK-NO-ATOMICS %s 8*bcaeed49SFangrui Song // RUN: %clangxx_tsan -O1 %s -o %t -mllvm -tsan-instrument-atomics=0 && not %deflake %run %t 2>&1 \ 9*bcaeed49SFangrui Song // RUN: | FileCheck --allow-empty --check-prefix=CHECK-NO-ATOMICS %s <%t 10*bcaeed49SFangrui Song 11*bcaeed49SFangrui Song #include "test.h" 12*bcaeed49SFangrui Song Thread(void * a)13*bcaeed49SFangrui Songvoid *Thread(void *a) { 14*bcaeed49SFangrui Song __atomic_fetch_add((int*)a, 1, __ATOMIC_SEQ_CST); 15*bcaeed49SFangrui Song barrier_wait(&barrier); 16*bcaeed49SFangrui Song return 0; 17*bcaeed49SFangrui Song } 18*bcaeed49SFangrui Song main()19*bcaeed49SFangrui Songint main() { 20*bcaeed49SFangrui Song barrier_init(&barrier, 2); 21*bcaeed49SFangrui Song int *a = new int(0); 22*bcaeed49SFangrui Song pthread_t t; 23*bcaeed49SFangrui Song pthread_create(&t, 0, Thread, a); 24*bcaeed49SFangrui Song barrier_wait(&barrier); 25*bcaeed49SFangrui Song delete a; 26*bcaeed49SFangrui Song pthread_join(t, 0); 27*bcaeed49SFangrui Song } 28*bcaeed49SFangrui Song 29*bcaeed49SFangrui Song // CHECK: WARNING: ThreadSanitizer: data race 30*bcaeed49SFangrui Song 31*bcaeed49SFangrui Song // CHECK-NO-ATOMICS-NOT: WARNING: ThreadSanitizer: data race 32