diff --git a/test/tools/llvm-cov/comma-in-coverage-object-filename.test b/test/tools/llvm-cov/comma-in-coverage-object-filename.test
new file mode 100644
index 00000000000..0bcd3d175ac
--- /dev/null
+++ b/test/tools/llvm-cov/comma-in-coverage-object-filename.test
@@ -0,0 +1,3 @@
+RUN: llvm-cov show %t -instr-profile %t -dump-collected-objects -object a,b | FileCheck %s
+
+CHECK: a,b
diff --git a/tools/llvm-cov/CodeCoverage.cpp b/tools/llvm-cov/CodeCoverage.cpp
index b3c895b44a6..cd3dbc44a66 100644
--- a/tools/llvm-cov/CodeCoverage.cpp
+++ b/tools/llvm-cov/CodeCoverage.cpp
@@ -544,8 +544,11 @@ int CodeCoverageTool::run(Command Cmd, int argc, const char **argv) {
       cl::Positional, cl::desc("Covered executable or object file."));
 
   cl::list<std::string> CovFilenames(
-      "object", cl::desc("Coverage executable or object file"), cl::ZeroOrMore,
-      cl::CommaSeparated);
+      "object", cl::desc("Coverage executable or object file"), cl::ZeroOrMore);
+
+  cl::opt<bool> DebugDumpCollectedObjects(
+      "dump-collected-objects", cl::Optional, cl::Hidden,
+      cl::desc("Show the collected coverage object files"));
 
   cl::list<std::string> InputSourceFiles(
       cl::Positional, cl::desc("<Source files>"), cl::ZeroOrMore);
@@ -668,6 +671,12 @@ int CodeCoverageTool::run(Command Cmd, int argc, const char **argv) {
       ::exit(1);
     }
 
+    if (DebugDumpCollectedObjects) {
+      for (StringRef OF : ObjectFilenames)
+        outs() << OF << '\n';
+      ::exit(0);
+    }
+
     ViewOpts.Format = Format;
     switch (ViewOpts.Format) {
     case CoverageViewOptions::OutputFormat::Text: