diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp
index 02291d53b6e..12b967ba682 100644
--- a/lib/CodeGen/LiveIntervalAnalysis.cpp
+++ b/lib/CodeGen/LiveIntervalAnalysis.cpp
@@ -619,6 +619,9 @@ void LiveIntervals::computeIntervals() {
         tm_->getInstrInfo()->get(mi->getOpcode());
       DEBUG(std::cerr << MIIndex << "\t" << *mi);
 
+      // FIXME: Why is  this needed?
+      MIIndex = getInstructionIndex(mi);
+      
       // handle implicit defs
       if (tid.ImplicitDefs) {
         for (const unsigned* id = tid.ImplicitDefs; *id; ++id)