1 files changed, 6 insertions, 6 deletions
diff --git a/src/wasm-interpreter.h b/src/wasm-interpreter.h
index a22bb6e54..65a4417c8 100644
--- a/src/wasm-interpreter.h
+++ b/src/wasm-interpreter.h
@@ -1388,13 +1388,13 @@ public:
     NOTE_ENTER("BrOnCast");
     WASM_UNREACHABLE("TODO (gc): br_on_cast");
   }
-  Flow visitRttCanon(RttCanon* curr) {
-    NOTE_ENTER("RttCanon");
-    WASM_UNREACHABLE("TODO (gc): rtt.canon");
-  }
+  Flow visitRttCanon(RttCanon* curr) { return Literal(curr->type); }
   Flow visitRttSub(RttSub* curr) {
-    NOTE_ENTER("RttSub");
-    WASM_UNREACHABLE("TODO (gc): rtt.sub");
+    Flow parent = this->visit(curr->parent);
+    if (parent.breaking()) {
+      return parent;
+    }
+    return Literal(curr->type);
   }
   Flow visitStructNew(StructNew* curr) {
     NOTE_ENTER("StructNew");