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| author | Benjamin Kramer <benny.kra@googlemail.com> | 2011-03-08 17:28:36 +0000 |
|---|---|---|
| committer | Benjamin Kramer <benny.kra@googlemail.com> | 2011-03-08 17:28:36 +0000 |
| commit | f337fb2fa8be9100f469650f1e32e8474525672f (patch) | |
| tree | 4806289594c92811f3c5e2137fb197d253bcc6fe /lib/CodeGen/LiveVariables.cpp | |
| parent | db04b81014cadc6ecdbaaa918a89a180511c6855 (diff) | |
| download | llvm-f337fb2fa8be9100f469650f1e32e8474525672f.tar.gz llvm-f337fb2fa8be9100f469650f1e32e8474525672f.tar.bz2 llvm-f337fb2fa8be9100f469650f1e32e8474525672f.tar.xz | |
Reduce vector reallocations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127254 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/LiveVariables.cpp')
| -rw-r--r-- | lib/CodeGen/LiveVariables.cpp | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/lib/CodeGen/LiveVariables.cpp b/lib/CodeGen/LiveVariables.cpp index dd43ef2530..20bad60ded 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<MachineBasicBlock*> OpSuccBlocks; + SmallVector<MachineBasicBlock*, 8> OpSuccBlocks; for (MachineBasicBlock::const_succ_iterator SI = MBB.succ_begin(), E = MBB.succ_end(); SI != E; ++SI) { MachineBasicBlock *SuccMBB = *SI; |