1 files changed, 1 insertions, 19 deletions
diff --git a/lib/CodeGen/RegAllocGreedy.cpp b/lib/CodeGen/RegAllocGreedy.cpp
index f4f1bf2bf0..0d54c8e408 100644
--- a/lib/CodeGen/RegAllocGreedy.cpp
+++ b/lib/CodeGen/RegAllocGreedy.cpp
@@ -337,6 +337,7 @@ void RAGreedy::getAnalysisUsage(AnalysisUsage &AU) const {
   AU.addRequired<AliasAnalysis>();
   AU.addPreserved<AliasAnalysis>();
   AU.addRequired<LiveIntervals>();
+  AU.addPreserved<LiveIntervals>();
   AU.addRequired<SlotIndexes>();
   AU.addPreserved<SlotIndexes>();
   AU.addRequired<LiveDebugVariables>();
@@ -1753,25 +1754,6 @@ bool RAGreedy::runOnMachineFunction(MachineFunction &mf) {
 
   allocatePhysRegs();
   addMBBLiveIns(MF);
-  LIS->addKillFlags();
-
-  // Run rewriter
-  {
-    NamedRegionTimer T("Rewriter", TimerGroupName, TimePassesIsEnabled);
-    VRM->rewrite(Indexes);
-  }
-
-  // Write out new DBG_VALUE instructions.
-  {
-    NamedRegionTimer T("Emit Debug Info", TimerGroupName, TimePassesIsEnabled);
-    DebugVars->emitDebugValues(VRM);
-  }
-
-  // All machine operands and other references to virtual registers have been
-  // replaced. Remove the virtual registers and release all the transient data.
-  VRM->clearAllVirt();
-  MRI->clearVirtRegs();
   releaseMemory();
-
   return true;
 }