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Switch to SmallVector in SimpleRegisterCoalescing for a 3.5% speedup on 403.gcc.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125728 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Cameron Zwarich 2011-02-17 06:52:07 +00:00
parent 61a733434d
commit 2598b1f4ac
1 changed files with 3 additions and 3 deletions
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6
lib/CodeGen/SimpleRegisterCoalescing.cpp
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@ -1425,9 +1425,9 @@ void SimpleRegisterCoalescing::CopyCoalesceInMBB(MachineBasicBlock *MBB,
std::vector<CopyRec> &TryAgain) { std::vector<CopyRec> &TryAgain) {
DEBUG(dbgs() << MBB->getName() << ":\n"); DEBUG(dbgs() << MBB->getName() << ":\n");
std::vector<CopyRec> VirtCopies; SmallVector<CopyRec, 8> VirtCopies;
std::vector<CopyRec> PhysCopies; SmallVector<CopyRec, 8> PhysCopies;
std::vector<CopyRec> ImpDefCopies; SmallVector<CopyRec, 8> ImpDefCopies;
for (MachineBasicBlock::iterator MII = MBB->begin(), E = MBB->end(); for (MachineBasicBlock::iterator MII = MBB->begin(), E = MBB->end();
MII != E;) { MII != E;) {
MachineInstr *Inst = MII++; MachineInstr *Inst = MII++;