[llvm-commits] [llvm] r74129 - /llvm/trunk/lib/Analysis/IPA/Andersens.cpp

[Owen Anderson]

Author: resistor
Date: Wed Jun 24 17:16:52 2009
New Revision: 74129

URL: http://llvm.org/viewvc/llvm-project?rev=74129&view=rev
Log:
Make this thread-safe.

Modified:
    llvm/trunk/lib/Analysis/IPA/Andersens.cpp

Modified: llvm/trunk/lib/Analysis/IPA/Andersens.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Analysis/IPA/Andersens.cpp?rev=74129&r1=74128&r2=74129&view=diff

==============================================================================
--- llvm/trunk/lib/Analysis/IPA/Andersens.cpp (original)
+++ llvm/trunk/lib/Analysis/IPA/Andersens.cpp Wed Jun 24 17:16:52 2009
@@ -65,6 +65,7 @@
 #include "llvm/Analysis/AliasAnalysis.h"
 #include "llvm/Analysis/Passes.h"
 #include "llvm/Support/Debug.h"
+#include "llvm/System/Atomic.h"
 #include "llvm/ADT/Statistic.h"
 #include "llvm/ADT/SparseBitVector.h"
 #include "llvm/ADT/DenseSet.h"
@@ -284,7 +285,8 @@
 
       // Timestamp a node (used for work list prioritization)
       void Stamp() {
-        Timestamp = Counter++;
+        Timestamp = Counter;
+        sys::AtomicIncrement(&Counter);
       }
 
       bool isRep() const {