Mark Code objects as not optimizable if their FunctionLiteral contains unoptimizable AST nodes.

src/full-codegen.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 295 matching lines @@
   FullCodeGenerator cgen(&masm, info);
   cgen.Generate();
   if (cgen.HasStackOverflow()) {
     ASSERT(!isolate->has_pending_exception());
     return false;
   }
   unsigned table_offset = cgen.EmitStackCheckTable();
 
   Code::Flags flags = Code::ComputeFlags(Code::FUNCTION);
   Handle<Code> code = CodeGenerator::MakeCodeEpilogue(&masm, flags, info);
-  code->set_optimizable(info->IsOptimizable());
+  code->set_optimizable(info->IsOptimizable() &&
+                        !info->function()->flags()->Contains(kDontOptimize));
   code->set_self_optimization_header(cgen.has_self_optimization_header_);
   cgen.PopulateDeoptimizationData(code);
   cgen.PopulateTypeFeedbackInfo(code);
   cgen.PopulateTypeFeedbackCells(code);
   code->set_has_deoptimization_support(info->HasDeoptimizationSupport());
   code->set_handler_table(*cgen.handler_table());
 #ifdef ENABLE_DEBUGGER_SUPPORT
   code->set_has_debug_break_slots(
       info->isolate()->debugger()->IsDebuggerActive());
   code->set_compiled_optimizable(info->IsOptimizable());
@@ skipping 1094 matching lines @@
   }
 
   return false;
 }
 
 
 #undef __
 
 
 } }  // namespace v8::internal