Convert VirtRegMap to a MachineFunctionPass.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66870 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/RegAllocPBQP.cpp b/lib/CodeGen/RegAllocPBQP.cpp
index 767e985..7f699f8 100644
--- a/lib/CodeGen/RegAllocPBQP.cpp
+++ b/lib/CodeGen/RegAllocPBQP.cpp
@@ -799,8 +799,7 @@
   lss = &getAnalysis<LiveStacks>();
   loopInfo = &getAnalysis<MachineLoopInfo>();
 
-  std::auto_ptr<VirtRegMap> vrmAutoPtr(new VirtRegMap(*mf));
-  vrm = vrmAutoPtr.get();
+  vrm = &getAnalysis<VirtRegMap>();
 
   DOUT << "PBQP Register Allocating for " << mf->getFunction()->getName() << "\n";