// RUN: %clangxx_tsan -O1 %s -o %t && %t 2>&1 | FileCheck %s #include <pthread.h> #include <stdio.h> #include <unistd.h> int Global; void *Thread1(void *x) { sleep(1); Global++; return NULL; } void *Thread2(void *x) { pthread_mutex_t mtx; pthread_mutex_init(&mtx, 0); pthread_mutex_lock(&mtx); Global--; pthread_mutex_unlock(&mtx); pthread_mutex_destroy(&mtx); return NULL; } int main() { pthread_t t[2]; pthread_create(&t[0], NULL, Thread1, NULL); pthread_create(&t[1], NULL, Thread2, NULL); pthread_join(t[0], NULL); pthread_join(t[1], NULL); } // CHECK: WARNING: ThreadSanitizer: data race // CHECK: Write of size 4 at {{.*}} by thread T1: // CHECK: Previous write of size 4 at {{.*}} by thread T2 // CHECK: (mutexes: write [[M1:M[0-9]+]]): // CHECK: Mutex [[M1]] is already destroyed // CHECK-NOT: Mutex {{.*}} created at