[llvm-commits] [llvm] r106591 - /llvm/trunk/lib/Transforms/Utils/CloneModule.cpp

Devang Patel dpatel at apple.com
Tue Jun 22 15:50:42 PDT 2010


Author: dpatel
Date: Tue Jun 22 17:50:42 2010
New Revision: 106591

URL: http://llvm.org/viewvc/llvm-project?rev=106591&view=rev
Log:
While cloning a module, clone metadata attached with instructions.

Modified:
    llvm/trunk/lib/Transforms/Utils/CloneModule.cpp

Modified: llvm/trunk/lib/Transforms/Utils/CloneModule.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Utils/CloneModule.cpp?rev=106591&r1=106590&r2=106591&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Utils/CloneModule.cpp (original)
+++ llvm/trunk/lib/Transforms/Utils/CloneModule.cpp Tue Jun 22 17:50:42 2010
@@ -133,6 +133,21 @@
     NamedMDNode::Create(New->getContext(), NMD.getName(),
                         MDs.data(), MDs.size(), New);
   }
-  
+
+  // Update metadata attach with instructions.
+  for (Module::iterator MI = New->begin(), ME = New->end(); MI != ME; ++MI)   
+    for (Function::iterator FI = MI->begin(), FE = MI->end(); 
+         FI != FE; ++FI)
+      for (BasicBlock::iterator BI = FI->begin(), BE = FI->end(); 
+           BI != BE; ++BI) {
+        SmallVector<std::pair<unsigned, MDNode *>, 4 > MDs;
+        BI->getAllMetadata(MDs);
+        for (SmallVector<std::pair<unsigned, MDNode *>, 4>::iterator 
+               MDI = MDs.begin(), MDE = MDs.end(); MDI != MDE; ++MDI) {
+          Value *MappedValue = MapValue(MDI->second, ValueMap);
+          if (MDI->second != MappedValue && MappedValue)
+            BI->setMetadata(MDI->first, cast<MDNode>(MappedValue));
+        }
+      }
   return New;
 }





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