1 files changed, 2 insertions, 0 deletions
diff --git a/lib/CodeGen/RegAllocLinearScan.cpp b/lib/CodeGen/RegAllocLinearScan.cpp
index 18fd118259..947a6c74bd 100644
--- a/lib/CodeGen/RegAllocLinearScan.cpp
+++ b/lib/CodeGen/RegAllocLinearScan.cpp
@@ -97,6 +97,7 @@ namespace {
       initializeCalculateSpillWeightsPass(*PassRegistry::getPassRegistry());
       initializePreAllocSplittingPass(*PassRegistry::getPassRegistry());
       initializeLiveStacksPass(*PassRegistry::getPassRegistry());
+      initializeMachineDominatorTreePass(*PassRegistry::getPassRegistry());
       initializeMachineLoopInfoPass(*PassRegistry::getPassRegistry());
       initializeVirtRegMapPass(*PassRegistry::getPassRegistry());
       initializeMachineDominatorTreePass(*PassRegistry::getPassRegistry());
@@ -208,6 +209,7 @@ namespace {
       AU.addPreserved<MachineLoopInfo>();
       AU.addRequired<VirtRegMap>();
       AU.addPreserved<VirtRegMap>();
+      AU.addRequiredID(MachineDominatorsID);
       AU.addPreservedID(MachineDominatorsID);
       MachineFunctionPass::getAnalysisUsage(AU);
     }