[llvm-commits] [llvm] r173497 - /llvm/trunk/lib/CodeGen/MachineScheduler.cpp

[Jakub Staszak]

Author: kuba
Date: Fri Jan 25 15:44:27 2013
New Revision: 173497

URL: http://llvm.org/viewvc/llvm-project?rev=173497&view=rev
Log:
Use const reference instead of vector copying.

Modified:
    llvm/trunk/lib/CodeGen/MachineScheduler.cpp

Modified: llvm/trunk/lib/CodeGen/MachineScheduler.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/MachineScheduler.cpp?rev=173497&r1=173496&r2=173497&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/MachineScheduler.cpp (original)
+++ llvm/trunk/lib/CodeGen/MachineScheduler.cpp Fri Jan 25 15:44:27 2013
@@ -467,7 +467,8 @@
   // 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)