Do not reserve space for the ColdEdges and NormalEdges vectors.

Discussion and rationale at
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20130520/175698.html

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182653 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Analysis/BranchProbabilityInfo.cpp b/lib/Analysis/BranchProbabilityInfo.cpp
index 54c148ed29303cb0817a6b010ecd4e9e63a38bcf..a6481cf359bfbab8d28037a28e0e55c0a6c71af0 100644 (file)
--- a/lib/Analysis/BranchProbabilityInfo.cpp
+++ b/lib/Analysis/BranchProbabilityInfo.cpp
@@ -222,9 +222,7 @@ bool BranchProbabilityInfo::calcColdCallHeuristics(BasicBlock *BB) {
 
   // Determine which successors are post-dominated by a cold block.
   SmallVector<unsigned, 4> ColdEdges;
-  ColdEdges.reserve(TI->getNumSuccessors());
   SmallVector<unsigned, 4> NormalEdges;
-  NormalEdges.reserve(TI->getNumSuccessors());
   for (succ_iterator I = succ_begin(BB), E = succ_end(BB); I != E; ++I)
     if (PostDominatedByColdCall.count(*I))
       ColdEdges.push_back(I.getSuccessorIndex());