1 files changed, 8 insertions, 2 deletions
diff --git a/src/pass.h b/src/pass.h
index cc63971fe..bc9b3edde 100644
--- a/src/pass.h
+++ b/src/pass.h
@@ -39,9 +39,14 @@ struct PassRegistry {
   typedef std::function<Pass*()> Creator;
 
   void registerPass(const char* name, const char* description, Creator create);
+  // Register a pass that's used for internal testing. These passes do not show
+  // up in --help.
+  void
+  registerTestPass(const char* name, const char* description, Creator create);
   std::unique_ptr<Pass> createPass(std::string name);
   std::vector<std::string> getRegisteredNames();
   std::string getPassDescription(std::string name);
+  bool isPassHidden(std::string name);
 
 private:
   void registerPasses();
@@ -49,9 +54,10 @@ private:
   struct PassInfo {
     std::string description;
     Creator create;
+    bool hidden;
     PassInfo() = default;
-    PassInfo(std::string description, Creator create)
-      : description(description), create(create) {}
+    PassInfo(std::string description, Creator create, bool hidden = false)
+      : description(description), create(create), hidden(hidden) {}
   };
   std::map<std::string, PassInfo> passInfos;
 };