1 files changed, 14 insertions, 1 deletions
diff --git a/deps/v8/src/runtime/runtime-interpreter.cc b/deps/v8/src/runtime/runtime-interpreter.cc
index 9f3897bf64..5889a477c3 100644
--- a/deps/v8/src/runtime/runtime-interpreter.cc
+++ b/deps/v8/src/runtime/runtime-interpreter.cc
@@ -34,6 +34,8 @@ RUNTIME_FUNCTION(Runtime_InterpreterNewClosure) {
       static_cast<PretenureFlag>(pretenured_flag));
 }
 
+#ifdef V8_TRACE_IGNITION
+
 namespace {
 
 void AdvanceToOffsetForTracing(
@@ -109,17 +111,22 @@ void PrintRegisters(std::ostream& os, bool is_input,
 }  // namespace
 
 RUNTIME_FUNCTION(Runtime_InterpreterTraceBytecodeEntry) {
+  if (!FLAG_trace_ignition) {
+    return isolate->heap()->undefined_value();
+  }
+
   SealHandleScope shs(isolate);
   DCHECK_EQ(3, args.length());
   CONVERT_ARG_HANDLE_CHECKED(BytecodeArray, bytecode_array, 0);
   CONVERT_SMI_ARG_CHECKED(bytecode_offset, 1);
   CONVERT_ARG_HANDLE_CHECKED(Object, accumulator, 2);
-  OFStream os(stdout);
 
   int offset = bytecode_offset - BytecodeArray::kHeaderSize + kHeapObjectTag;
   interpreter::BytecodeArrayIterator bytecode_iterator(bytecode_array);
   AdvanceToOffsetForTracing(bytecode_iterator, offset);
   if (offset == bytecode_iterator.current_offset()) {
+    OFStream os(stdout);
+
     // Print bytecode.
     const uint8_t* base_address = bytecode_array->GetFirstBytecodeAddress();
     const uint8_t* bytecode_address = base_address + offset;
@@ -137,6 +144,10 @@ RUNTIME_FUNCTION(Runtime_InterpreterTraceBytecodeEntry) {
 }
 
 RUNTIME_FUNCTION(Runtime_InterpreterTraceBytecodeExit) {
+  if (!FLAG_trace_ignition) {
+    return isolate->heap()->undefined_value();
+  }
+
   SealHandleScope shs(isolate);
   DCHECK_EQ(3, args.length());
   CONVERT_ARG_HANDLE_CHECKED(BytecodeArray, bytecode_array, 0);
@@ -160,6 +171,8 @@ RUNTIME_FUNCTION(Runtime_InterpreterTraceBytecodeExit) {
   return isolate->heap()->undefined_value();
 }
 
+#endif
+
 RUNTIME_FUNCTION(Runtime_InterpreterAdvanceBytecodeOffset) {
   SealHandleScope shs(isolate);
   DCHECK_EQ(2, args.length());