1 files changed, 17 insertions, 0 deletions
diff --git a/js/src/jit/IonBuilder.cpp b/js/src/jit/IonBuilder.cpp
index 171518d38..1e12f5dbe 100644
--- a/js/src/jit/IonBuilder.cpp
+++ b/js/src/jit/IonBuilder.cpp
@@ -2133,6 +2133,9 @@ IonBuilder::inspectOpcode(JSOp op)
       case JSOP_TOASYNCGEN:
         return jsop_toasyncgen();
 
+      case JSOP_TOASYNCITER:
+        return jsop_toasynciter();
+
       case JSOP_TOID:
         return jsop_toid();
 
@@ -13213,6 +13216,20 @@ IonBuilder::jsop_toasyncgen()
 }
 
 bool
+IonBuilder::jsop_toasynciter()
+{
+    MDefinition* unwrapped = current->pop();
+    MOZ_ASSERT(unwrapped->type() == MIRType::Object);
+
+    MToAsyncIter* ins = MToAsyncIter::New(alloc(), unwrapped);
+
+    current->add(ins);
+    current->push(ins);
+
+    return resumeAfter(ins);
+}
+
+bool
 IonBuilder::jsop_toid()
 {
     // No-op if the index is an integer.