| 1 | // RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s |
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| 2 | #include "test.h" |
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| 3 | |
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| 4 | int X = 0; |
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| 5 | |
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| 6 | __attribute__((noinline)) void MySleep() { |
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| 7 | sleep(seconds: 1); // the sleep that must appear in the report |
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| 8 | } |
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| 9 | |
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| 10 | void *Thread(void *p) { |
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| 11 | barrier_wait(barrier: &barrier); |
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| 12 | MySleep(); // Assume the main thread has done the write. |
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| 13 | X = 42; |
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| 14 | return 0; |
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| 15 | } |
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| 16 | |
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| 17 | int main() { |
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| 18 | barrier_init(barrier: &barrier, count: 2); |
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| 19 | pthread_t t; |
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| 20 | pthread_create(newthread: &t, attr: 0, start_routine: Thread, arg: 0); |
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| 21 | X = 43; |
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| 22 | barrier_wait(barrier: &barrier); |
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| 23 | pthread_join(th: t, thread_return: 0); |
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| 24 | return 0; |
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| 25 | } |
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| 26 | |
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| 27 | // CHECK: WARNING: ThreadSanitizer: data race |
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| 28 | // ... |
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| 29 | // CHECK: As if synchronized via sleep: |
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| 30 | // CHECK-NEXT: #0 sleep |
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| 31 | // CHECK-NEXT: #1 MySleep |
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| 32 | // CHECK-NEXT: #2 Thread |
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| 33 | |
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