1 files changed, 7 insertions, 0 deletions
diff --git a/src/wasm-interpreter.h b/src/wasm-interpreter.h
index 1d07af46a..e8716efbc 100644
--- a/src/wasm-interpreter.h
+++ b/src/wasm-interpreter.h
@@ -1317,6 +1317,13 @@ public:
     switch (curr->op) {
       case RefIsNull:
         return Literal(value.isNull());
+      case RefIsFunc:
+        return Literal(!value.isNull() && value.type.isFunction());
+      case RefIsData:
+        return Literal(!value.isNull() && value.isGCData());
+      case RefIsI31:
+        return Literal(!value.isNull() &&
+                       value.type.getHeapType() == HeapType::i31);
       default:
         WASM_UNREACHABLE("unimplemented ref.is_*");
     }