1 files changed, 5 insertions, 1 deletions
diff --git a/src/concurrent/qtconcurrentthreadengine.cpp b/src/concurrent/qtconcurrentthreadengine.cpp
index 5c120d676e..ce02d0c2c9 100644
--- a/src/concurrent/qtconcurrentthreadengine.cpp
+++ b/src/concurrent/qtconcurrentthreadengine.cpp
@@ -3,7 +3,7 @@
 
 #include "qtconcurrentthreadengine.h"
 
-#if !defined(QT_NO_CONCURRENT) || defined(Q_CLANG_QDOC)
+#if !defined(QT_NO_CONCURRENT) || defined(Q_QDOC)
 
 QT_BEGIN_NAMESPACE
 
@@ -63,6 +63,7 @@ void ThreadEngineBarrier::acquire()
             if (count.testAndSetOrdered(localCount, localCount + 1))
                 return;
         }
+        qYieldCpu();
     }
 }
 
@@ -82,6 +83,7 @@ int ThreadEngineBarrier::release()
             if (count.testAndSetOrdered(localCount, localCount - 1))
                 return localCount - 1;
         }
+        qYieldCpu();
     }
 }
 
@@ -98,6 +100,7 @@ void ThreadEngineBarrier::wait()
             semaphore.acquire();
             return;
         }
+        qYieldCpu();
     }
 }
 
@@ -121,6 +124,7 @@ bool ThreadEngineBarrier::releaseUnlessLast()
             if (count.testAndSetOrdered(localCount, localCount - 1))
                 return true;
         }
+        qYieldCpu();
     }
 }