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Use const reference instead of vector copying.

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llvm-svn: 173497
This commit is contained in:
Jakub Staszak 2013-01-25 21:44:27 +00:00
parent 4e9de7c89b
commit 4fa9ef00c4
1 changed files with 2 additions and 1 deletions
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3
lib/CodeGen/MachineScheduler.cpp
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@ -467,7 +467,8 @@ void ScheduleDAGMI::initRegPressure() {
// Cache the list of excess pressure sets in this region. This will also track
// the max pressure in the scheduled code for these sets.
RegionCriticalPSets.clear();
std::vector<unsigned> RegionPressure = RPTracker.getPressure().MaxSetPressure;
const std::vector<unsigned> &RegionPressure =
RPTracker.getPressure().MaxSetPressure;
for (unsigned i = 0, e = RegionPressure.size(); i < e; ++i) {
unsigned Limit = TRI->getRegPressureSetLimit(i);
DEBUG(dbgs() << TRI->getRegPressureSetName(i)