From f337fb2fa8be9100f469650f1e32e8474525672f Mon Sep 17 00:00:00 2001 From: Benjamin Kramer Date: Tue, 8 Mar 2011 17:28:36 +0000 Subject: [PATCH] Reduce vector reallocations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127254 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/LiveVariables.cpp | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/lib/CodeGen/LiveVariables.cpp b/lib/CodeGen/LiveVariables.cpp index dd43ef2530c..20bad60dedd 100644 --- a/lib/CodeGen/LiveVariables.cpp +++ b/lib/CodeGen/LiveVariables.cpp @@ -107,9 +107,7 @@ void LiveVariables::MarkVirtRegAliveInBlock(VarInfo& VRInfo, // Mark the variable known alive in this bb VRInfo.AliveBlocks.set(BBNum); - for (MachineBasicBlock::const_pred_reverse_iterator PI = MBB->pred_rbegin(), - E = MBB->pred_rend(); PI != E; ++PI) - WorkList.push_back(*PI); + WorkList.insert(WorkList.end(), MBB->pred_rbegin(), MBB->pred_rend()); } void LiveVariables::MarkVirtRegAliveInBlock(VarInfo &VRInfo, @@ -707,7 +705,7 @@ bool LiveVariables::isLiveOut(unsigned Reg, const MachineBasicBlock &MBB) { // Loop over all of the successors of the basic block, checking to see if // the value is either live in the block, or if it is killed in the block. - std::vector OpSuccBlocks; + SmallVector OpSuccBlocks; for (MachineBasicBlock::const_succ_iterator SI = MBB.succ_begin(), E = MBB.succ_end(); SI != E; ++SI) { MachineBasicBlock *SuccMBB = *SI; -- 2.34.1