Transfer physical register spill info when load / store folding happens.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48246 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp
index 7931804..d7c5544 100644
--- a/lib/CodeGen/LiveIntervalAnalysis.cpp
+++ b/lib/CodeGen/LiveIntervalAnalysis.cpp
@@ -779,6 +779,7 @@
       vrm.virtFolded(Reg, MI, fmi, (VirtRegMap::ModRef)MRInfo);
     vrm.transferSpillPts(MI, fmi);
     vrm.transferRestorePts(MI, fmi);
+    vrm.transferEmergencySpills(MI, fmi);
     mi2iMap_.erase(MI);
     i2miMap_[InstrIdx /InstrSlots::NUM] = fmi;
     mi2iMap_[fmi] = InstrIdx;