forked from OSchip/llvm-project
31 lines
679 B
C++
31 lines
679 B
C++
// RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
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#include <pthread.h>
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#include <stdio.h>
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extern "C" void AnnotateIgnoreSyncBegin(const char*, int);
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extern "C" void AnnotateIgnoreSyncEnd(const char*, int);
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int Global;
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pthread_mutex_t Mutex = PTHREAD_MUTEX_INITIALIZER;
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void *Thread(void *x) {
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AnnotateIgnoreSyncBegin(0, 0);
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pthread_mutex_lock(&Mutex);
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Global++;
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pthread_mutex_unlock(&Mutex);
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AnnotateIgnoreSyncEnd(0, 0);
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return 0;
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}
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int main() {
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pthread_t t;
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pthread_create(&t, 0, Thread, 0);
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pthread_mutex_lock(&Mutex);
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Global++;
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pthread_mutex_unlock(&Mutex);
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pthread_join(t, 0);
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}
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// CHECK: WARNING: ThreadSanitizer: data race
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