compiler: enable optimizer for function literals

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/v8.h"
 
 #include "src/compiler.h"
 
 #include "src/ast-numbering.h"
 #include "src/ast-this-access-visitor.h"
@@ skipping 1220 matching lines @@
 
     Debug::RecordEvalCaller(script);
 
     shared_info = CompileToplevel(&info);
 
     if (shared_info.is_null()) {
       return MaybeHandle<JSFunction>();
     } else {
       // Explicitly disable optimization for eval code. We're not yet prepared
       // to handle eval-code in the optimizing compiler.
-      shared_info->DisableOptimization(kEval);
+      if (restriction != ONLY_SINGLE_FUNCTION_LITERAL) {
+        shared_info->DisableOptimization(kEval);
+      }
 
       // If caller is strict mode, the result must be in strict mode as well.
       DCHECK(strict_mode == SLOPPY || shared_info->strict_mode() == STRICT);
       if (!shared_info->dont_cache()) {
         compilation_cache->PutEval(source, outer_info, context, shared_info,
                                    scope_position);
       }
     }
   } else if (shared_info->ic_age() != isolate->heap()->global_ic_age()) {
     shared_info->ResetForNewContext(isolate->heap()->global_ic_age());
@@ skipping 324 matching lines @@
   AllowHandleDereference allow_deref;
   bool tracing_on = info()->IsStub()
       ? FLAG_trace_hydrogen_stubs
       : (FLAG_trace_hydrogen &&
          info()->closure()->PassesFilter(FLAG_trace_hydrogen_filter));
   return (tracing_on &&
       base::OS::StrChr(const_cast<char*>(FLAG_trace_phase), name_[0]) != NULL);
 }
 
 } }  // namespace v8::internal