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diff --git a/src/llvmopencl/ImplicitLoopBarriers.h b/src/llvmopencl/ImplicitLoopBarriers.h
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+// Header for ImplicitLoopBarriers loop pass.
+// 
+// Copyright (c) 2012-2014 Pekka Jääskeläinen / TUT
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+// 
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+#include "llvm/Analysis/LoopPass.h"
+#include <set>
+
+namespace pocl {
+  class ImplicitLoopBarriers : public llvm::LoopPass {
+    
+  public:
+    static char ID;
+    
+  ImplicitLoopBarriers() : LoopPass(ID) {}
+    
+    virtual void getAnalysisUsage(llvm::AnalysisUsage &AU) const;
+    virtual bool runOnLoop(llvm::Loop *L, llvm::LPPassManager &LPM);
+
+  private:
+    llvm::DominatorTree *DT;
+
+    bool ProcessLoop(llvm::Loop *L, llvm::LPPassManager &LPM);
+    bool AddInnerLoopBarrier(llvm::Loop *L, llvm::LPPassManager &LPM);
+
+  };
+}