Set NextMII after issuing a physical register spill.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48263 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/VirtRegMap.cpp b/lib/CodeGen/VirtRegMap.cpp
index cabc6ba..9e46c00 100644
--- a/lib/CodeGen/VirtRegMap.cpp
+++ b/lib/CodeGen/VirtRegMap.cpp
@@ -1082,6 +1082,7 @@
         VRM.addSpillSlotUse(SS, LoadMI);
         ++NumPSpills;
       }
+      NextMII = next(MII);
     }
 
     // Insert restores here if asked to.