Produce a code cache if the embedder asks for one

src/compiler.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/compiler.h"
 
 #include <algorithm>
 
 #include "src/ast/ast-numbering.h"
 #include "src/ast/prettyprinter.h"
@@ skipping 1313 matching lines @@
       // Deserializer failed. Fall through to compile.
     }
   }
 
   base::ElapsedTimer timer;
   if (FLAG_profile_deserialization && FLAG_serialize_toplevel &&
       compile_options == ScriptCompiler::kProduceCodeCache) {
     timer.Start();
   }
 
-  if (!maybe_result.ToHandle(&result)) {
-    // No cache entry found. Compile the script.
+  if (!maybe_result.ToHandle(&result) ||
+      (FLAG_serialize_toplevel &&
+       compile_options == ScriptCompiler::kProduceCodeCache)) {
+    // No cache entry found, or embedder wants a code cache. Compile the script.
 
     // Create a script object describing the script to be compiled.
     Handle<Script> script = isolate->factory()->NewScript(source);
     if (natives == NATIVES_CODE) {
       script->set_type(Script::TYPE_NATIVE);
       script->set_hide_source(true);
     } else if (natives == EXTENSION_CODE) {
       script->set_type(Script::TYPE_EXTENSION);
       script->set_hide_source(true);
     }
@@ skipping 317 matching lines @@
     MaybeHandle<Code> code;
     if (cached.code != nullptr) code = handle(cached.code);
     Handle<Context> native_context(function->context()->native_context());
     SharedFunctionInfo::AddToOptimizedCodeMap(shared, native_context, code,
                                               literals, BailoutId::None());
   }
 }
 
 }  // namespace internal
 }  // namespace v8