1 files changed, 5 insertions, 0 deletions
diff --git a/js/src/frontend/BytecodeEmitter.cpp b/js/src/frontend/BytecodeEmitter.cpp
index 7f9fa8a5d..44787dc52 100644
--- a/js/src/frontend/BytecodeEmitter.cpp
+++ b/js/src/frontend/BytecodeEmitter.cpp
@@ -3069,6 +3069,7 @@ BytecodeEmitter::checkSideEffects(ParseNode* pn, bool* answer)
       case PNK_TRUE:
       case PNK_FALSE:
       case PNK_NULL:
+      case PNK_RAW_UNDEFINED:
       case PNK_ELISION:
       case PNK_GENERATOR:
       case PNK_NUMBER:
@@ -6242,6 +6243,9 @@ ParseNode::getConstantValue(ExclusiveContext* cx, AllowConstantObjects allowObje
       case PNK_NULL:
         vp.setNull();
         return true;
+      case PNK_RAW_UNDEFINED:
+        vp.setUndefined();
+        return true;
       case PNK_CALLSITEOBJ:
       case PNK_ARRAY: {
         unsigned count;
@@ -10636,6 +10640,7 @@ BytecodeEmitter::emitTree(ParseNode* pn, EmitLineNumberNote emitLineNote)
       case PNK_TRUE:
       case PNK_FALSE:
       case PNK_NULL:
+      case PNK_RAW_UNDEFINED:
         if (!emit1(pn->getOp()))
             return false;
         break;