[llvm] r185378 - Make PBQP require/preserve MachineLoopInfo - the spiller requires it.

[Lang Hames]

Author: lhames
Date: Mon Jul  1 15:47:47 2013
New Revision: 185378

URL: http://llvm.org/viewvc/llvm-project?rev=185378&view=rev
Log:
Make PBQP require/preserve MachineLoopInfo - the spiller requires it.

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

Modified: llvm/trunk/lib/CodeGen/RegAllocPBQP.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/RegAllocPBQP.cpp?rev=185378&r1=185377&r2=185378&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/RegAllocPBQP.cpp (original)
+++ llvm/trunk/lib/CodeGen/RegAllocPBQP.cpp Mon Jul  1 15:47:47 2013
@@ -43,6 +43,7 @@
 #include "llvm/CodeGen/MachineBlockFrequencyInfo.h"
 #include "llvm/CodeGen/MachineDominators.h"
 #include "llvm/CodeGen/MachineFunctionPass.h"
+#include "llvm/CodeGen/MachineLoopInfo.h"
 #include "llvm/CodeGen/MachineRegisterInfo.h"
 #include "llvm/CodeGen/PBQP/Graph.h"
 #include "llvm/CodeGen/PBQP/HeuristicSolver.h"
@@ -436,6 +437,8 @@ void RegAllocPBQP::getAnalysisUsage(Anal
   au.addPreserved<LiveStacks>();
   au.addRequired<MachineBlockFrequencyInfo>();
   au.addPreserved<MachineBlockFrequencyInfo>();
+  au.addRequired<MachineLoopInfo>();
+  au.addPreserved<MachineLoopInfo>();
   au.addRequired<MachineDominatorTree>();
   au.addPreserved<MachineDominatorTree>();
   au.addRequired<VirtRegMap>();