1 files changed, 15 insertions, 0 deletions
diff --git a/src/wasm/literal.cpp b/src/wasm/literal.cpp
index 4edaf8039..b7cf5084e 100644
--- a/src/wasm/literal.cpp
+++ b/src/wasm/literal.cpp
@@ -55,6 +55,9 @@ Literal::Literal(const Literal& other) : type(other.type) {
     } else {
       new (&exn) std::unique_ptr<ExceptionPackage>();
     }
+  } else if (other.isGCData()) {
+    // Avoid calling the destructor on an uninitialized value
+    new (&gcData) std::shared_ptr<Literals>(other.gcData);
   } else if (type.isFunction()) {
     func = other.func;
   } else {
@@ -189,6 +192,11 @@ ExceptionPackage Literal::getExceptionPackage() const {
   return *exn;
 }
 
+std::shared_ptr<Literals> Literal::getGCData() const {
+  assert(isGCData());
+  return gcData;
+}
+
 Literal Literal::castToF32() {
   assert(type == Type::i32);
   Literal ret(Type::f32);
@@ -428,6 +436,13 @@ std::ostream& operator<<(std::ostream& o, Literal literal) {
     } else {
       o << "funcref(" << literal.getFunc() << ")";
     }
+  } else if (literal.isGCData()) {
+    auto data = literal.getGCData();
+    if (data) {
+      o << "[ref " << *data << ']';
+    } else {
+      o << "[ref null " << literal.type << ']';
+    }
   } else {
     TODO_SINGLE_COMPOUND(literal.type);
     switch (literal.type.getBasic()) {