[llvm-commits] [llvm] r153949 - /llvm/trunk/lib/VMCore/Metadata.cpp

[Bill Wendling]

Author: void
Date: Tue Apr  3 05:50:09 2012
New Revision: 153949

URL: http://llvm.org/viewvc/llvm-project?rev=153949&view=rev
Log:
Reserve space for the eventual filling of the vector. This gives a small speedup.

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

Modified: llvm/trunk/lib/VMCore/Metadata.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/VMCore/Metadata.cpp?rev=153949&r1=153948&r2=153949&view=diff
==============================================================================
--- llvm/trunk/lib/VMCore/Metadata.cpp (original)
+++ llvm/trunk/lib/VMCore/Metadata.cpp Tue Apr  3 05:50:09 2012
@@ -551,17 +551,16 @@
          getContext().pImpl->MetadataStore.count(this) &&
          "Shouldn't have called this");
   const LLVMContextImpl::MDMapTy &Info =
-  getContext().pImpl->MetadataStore.find(this)->second;
+    getContext().pImpl->MetadataStore.find(this)->second;
   assert(!Info.empty() && "Shouldn't have called this");
-  
+  Result.reserve(Info.size());
   Result.append(Info.begin(), Info.end());
-  
+
   // Sort the resulting array so it is stable.
   if (Result.size() > 1)
     array_pod_sort(Result.begin(), Result.end());
 }
 
-
 /// clearMetadataHashEntries - Clear all hashtable-based metadata from
 /// this instruction.
 void Instruction::clearMetadataHashEntries() {