1 files changed, 17 insertions, 0 deletions
diff --git a/js/src/jit/IonBuilder.cpp b/js/src/jit/IonBuilder.cpp
index af4ca0657..171518d38 100644
--- a/js/src/jit/IonBuilder.cpp
+++ b/js/src/jit/IonBuilder.cpp
@@ -2130,6 +2130,9 @@ IonBuilder::inspectOpcode(JSOp op)
       case JSOP_TOASYNC:
         return jsop_toasync();
 
+      case JSOP_TOASYNCGEN:
+        return jsop_toasyncgen();
+
       case JSOP_TOID:
         return jsop_toid();
 
@@ -13196,6 +13199,20 @@ IonBuilder::jsop_toasync()
 }
 
 bool
+IonBuilder::jsop_toasyncgen()
+{
+    MDefinition* unwrapped = current->pop();
+    MOZ_ASSERT(unwrapped->type() == MIRType::Object);
+
+    MToAsyncGen* ins = MToAsyncGen::New(alloc(), unwrapped);
+
+    current->add(ins);
+    current->push(ins);
+
+    return resumeAfter(ins);
+}
+
+bool
 IonBuilder::jsop_toid()
 {
     // No-op if the index is an integer.