hanchenye-llvm-project/compiler-rt/test/tsan/sleep_sync2.cc

25 lines
477 B
C++

// RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
#include "test.h"
int X = 0;
void *Thread(void *p) {
X = 42;
barrier_wait(&barrier);
return 0;
}
int main() {
barrier_init(&barrier, 2);
pthread_t t;
sleep(1); // must not appear in the report
pthread_create(&t, 0, Thread, 0);
barrier_wait(&barrier);
X = 43;
pthread_join(t, 0);
return 0;
}
// CHECK: WARNING: ThreadSanitizer: data race
// CHECK-NOT: As if synchronized via sleep