1 files changed, 11 insertions, 0 deletions
diff --git a/src/ir/module-splitting.cpp b/src/ir/module-splitting.cpp
index adda1f4a6..777818689 100644
--- a/src/ir/module-splitting.cpp
+++ b/src/ir/module-splitting.cpp
@@ -316,6 +316,7 @@ struct ModuleSplitter {
   void exportImportCalledPrimaryFunctions();
   void setupTablePatching();
   void shareImportableItems();
+  void removeUnusedSecondaryElements();
 
   ModuleSplitter(Module& primary, const Config& config)
     : config(config), secondaryPtr(initSecondary(primary)), primary(primary),
@@ -334,6 +335,7 @@ struct ModuleSplitter {
     exportImportCalledPrimaryFunctions();
     setupTablePatching();
     shareImportableItems();
+    removeUnusedSecondaryElements();
   }
 };
 
@@ -872,6 +874,15 @@ void ModuleSplitter::shareImportableItems() {
   }
 }
 
+void ModuleSplitter::removeUnusedSecondaryElements() {
+  // TODO: It would be better to be more selective about only exporting and
+  // importing those items that the secondary module needs. This would reduce
+  // code size in the primary module as well.
+  PassRunner runner(&secondary);
+  runner.add("remove-unused-module-elements");
+  runner.run();
+}
+
 } // anonymous namespace
 
 Results splitFunctions(Module& primary, const Config& config) {