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