Index: lib/ProfileData/Coverage/CoverageMapping.cpp
===================================================================
--- lib/ProfileData/Coverage/CoverageMapping.cpp
+++ lib/ProfileData/Coverage/CoverageMapping.cpp
@@ -207,10 +207,6 @@
   else
     OrigFuncName = getFuncNameWithoutPrefix(OrigFuncName, Record.Filenames[0]);
 
-  // Don't load records for functions we've already seen.
-  if (!FunctionNames.insert(OrigFuncName).second)
-    return Error::success();
-
   CounterMappingContext Ctx(Record.Expressions);
 
   std::vector<uint64_t> Counts;