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Replace some unnecessary vector copies with references.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190770 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Benjamin Kramer
2013-09-15 22:04:42 +00:00
parent 766f25306a
commit 94ee55d4b3
6 changed files with 8 additions and 10 deletions
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lib/CodeGen/MachineLICM.cpp
+2 -2
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@@ -502,7 +502,7 @@ void MachineLICM::HoistRegionPostRA() {
// Walk the entire region, count number of defs for each register, and
// collect potential LICM candidates.
const std::vector<MachineBasicBlock*> Blocks = CurLoop->getBlocks();
const std::vector<MachineBasicBlock *> &Blocks = CurLoop->getBlocks();
for (unsigned i = 0, e = Blocks.size(); i != e; ++i) {
MachineBasicBlock *BB = Blocks[i];
@@ -584,7 +584,7 @@ void MachineLICM::HoistRegionPostRA() {
/// AddToLiveIns - Add register 'Reg' to the livein sets of BBs in the current
/// loop, and make sure it is not killed by any instructions in the loop.
void MachineLICM::AddToLiveIns(unsigned Reg) {
const std::vector<MachineBasicBlock*> Blocks = CurLoop->getBlocks();
const std::vector<MachineBasicBlock *> &Blocks = CurLoop->getBlocks();
for (unsigned i = 0, e = Blocks.size(); i != e; ++i) {
MachineBasicBlock *BB = Blocks[i];
if (!BB->isLiveIn(Reg))