[llvm-commits] [llvm] r109405 - /llvm/trunk/lib/VMCore/Dominators.cpp

[Dan Gohman]

Author: djg
Date: Mon Jul 26 12:45:33 2010
New Revision: 109405

URL: http://llvm.org/viewvc/llvm-project?rev=109405&view=rev
Log:
Avoid copying and recopying a std::set.

Modified:
    llvm/trunk/lib/VMCore/Dominators.cpp

Modified: llvm/trunk/lib/VMCore/Dominators.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/VMCore/Dominators.cpp?rev=109405&r1=109404&r2=109405&view=diff
==============================================================================
--- llvm/trunk/lib/VMCore/Dominators.cpp (original)
+++ llvm/trunk/lib/VMCore/Dominators.cpp Mon Jul 26 12:45:33 2010
@@ -140,12 +140,8 @@
 
   // NewBBSucc inherits original NewBB frontier.
   DominanceFrontier::iterator NewBBI = find(NewBB);
-  if (NewBBI != end()) {
-    DominanceFrontier::DomSetType NewBBSet = NewBBI->second;
-    DominanceFrontier::DomSetType NewBBSuccSet;
-    NewBBSuccSet.insert(NewBBSet.begin(), NewBBSet.end());
-    addBasicBlock(NewBBSucc, NewBBSuccSet);
-  }
+  if (NewBBI != end())
+    addBasicBlock(NewBBSucc, NewBBI->second);
 
   // If NewBB dominates NewBBSucc, then DF(NewBB) is now going to be the
   // DF(NewBBSucc) without the stuff that the new block does not dominate