Index: tools/llvm-dwarfdump/Statistics.cpp
===================================================================
--- tools/llvm-dwarfdump/Statistics.cpp
+++ tools/llvm-dwarfdump/Statistics.cpp
@@ -547,12 +547,16 @@
     VarWithSrcLoc += Stats.NumVarSourceLocations;
   }
 
+  // Windows path may contain special characters.
+  std::string FileFullPath = Filename.str();
+  std::replace(FileFullPath.begin(), FileFullPath.end(), '\\', '/');
+
   // Print summary.
   OS.SetBufferSize(1024);
   OS << "{\"version\":" << Version;
   LLVM_DEBUG(llvm::dbgs() << "Variable location quality metrics\n";
              llvm::dbgs() << "---------------------------------\n");
-  printDatum(OS, "file", Filename.str());
+  printDatum(OS, "file", FileFullPath);
   printDatum(OS, "format", FormatName);
   printDatum(OS, "source functions", NumFunctions);
   printDatum(OS, "source functions with location", NumFuncsWithSrcLoc);