fix bug on thread barrier

paddle/math/tests/test_perturbation.cpp

@@ -254,4 +254,10 @@ int main(int argc, char** argv) {
   return RUN_ALL_TESTS();
 }
 
+#else
+
+int main(int argc, char const* argv[]) {
+    return 0;
+}
+
 #endif

paddle/utils/arch/osx/Locks.cpp

@@ -49,7 +49,7 @@ void Semaphore::post() {
 
 class SpinLockPrivate {
 public:
-  SpinLockPrivate(): lock_(0) {}
+  SpinLockPrivate(): lock_(OS_SPINLOCK_INIT) {}
 
   OSSpinLock lock_;
   char padding_[64 - sizeof(OSSpinLock)];  // Padding to cache line size
@@ -92,7 +92,7 @@ public:
   inline bool wait() {
     pthread_mutex_lock(&mutex);
     ++count;
-    if (count > tripCount) {
+    if (count >= tripCount) {
       count = 0;
       pthread_cond_broadcast(&cond);
       pthread_mutex_unlock(&mutex);