[llvm] r237694 - Prevent Cleanup() from running more than once.

[Yaron Keren]

Author: yrnkrn
Date: Tue May 19 08:31:25 2015
New Revision: 237694

URL: http://llvm.org/viewvc/llvm-project?rev=237694&view=rev
Log:
Prevent Cleanup() from running more than once.


Modified:
    llvm/trunk/lib/Support/Windows/Signals.inc

Modified: llvm/trunk/lib/Support/Windows/Signals.inc
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Support/Windows/Signals.inc?rev=237694&r1=237693&r2=237694&view=diff
==============================================================================
--- llvm/trunk/lib/Support/Windows/Signals.inc (original)
+++ llvm/trunk/lib/Support/Windows/Signals.inc Tue May 19 08:31:25 2015
@@ -441,6 +441,9 @@ void llvm::sys::AddSignalHandler(void (*
 }
 
 static void Cleanup() {
+  if (CleanupExecuted)
+    return;
+
   EnterCriticalSection(&CriticalSection);
 
   // Prevent other thread from registering new files and directories for