Make sure only one copy of a filter is placed in the

exception handling table if we encounter it multiple
times.  Filters could be folded harder than this, but
that would mean a lot more work for not much gain.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37908 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/CodeGen/MachineModuleInfo.h

@@ -1022,6 +1022,11 @@ private:
   //
   std::vector<unsigned> FilterIds;
 
+  // FilterEnds - List of the indices in FilterIds corresponding to filter
+  // terminators.
+  //
+  std::vector<unsigned> FilterEnds;
+
   // Personalities - Vector of all personality functions ever seen. Used to emit
   // common EH frames.
   std::vector<Function *> Personalities;