Reduce the memory used by frame elements from two words to one by...

src/compiler.cc

 // Copyright 2009 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 83 matching lines @@
 }
 
 
 static Handle<JSFunction> MakeFunction(bool is_global,
                                        bool is_eval,
                                        bool is_json,
                                        Handle<Script> script,
                                        Handle<Context> context,
                                        v8::Extension* extension,
                                        ScriptDataImpl* pre_data) {
-  ZoneScope zone_scope(DELETE_ON_EXIT);
+  CompilationZoneScope zone_scope(DELETE_ON_EXIT);

[Kasper Lund, 2009/05/14 11:26:16]

Do you ever have CompilationZoneScope that aren't DELETE_ON_EXIT? You could
remove the constructor parameter...

[Mads Ager (chromium), 2009/05/14 11:42:40]

Done.

 
   // Make sure we have an initial stack limit.
   StackGuard guard;
   PostponeInterruptsScope postpone;
 
   ASSERT(!i::Top::global_context().is_null());
   script->set_context_data((*i::Top::global_context())->data());
 #ifdef ENABLE_DEBUGGER_SUPPORT
   // Notify debugger
   Debugger::OnBeforeCompile(script);
@@ skipping 184 matching lines @@
       CompilationCache::PutEval(source, context, entry, result);
     }
   }
 
   return result;
 }
 
 
 bool Compiler::CompileLazy(Handle<SharedFunctionInfo> shared,
                            int loop_nesting) {
-  ZoneScope zone_scope(DELETE_ON_EXIT);
+  CompilationZoneScope zone_scope(DELETE_ON_EXIT);
 
   // The VM is in the COMPILER state until exiting this function.
   VMState state(COMPILER);
 
   // Make sure we have an initial stack limit.
   StackGuard guard;
   PostponeInterruptsScope postpone;
 
   // Compute name, source code and script data.
   Handle<String> name(String::cast(shared->name()));
@@ skipping 66 matching lines @@
   // Set the expected number of properties for instances.
   SetExpectedNofPropertiesFromEstimate(shared, lit->expected_property_count());
 
   // Check the function has compiled code.
   ASSERT(shared->is_compiled());
   return true;
 }
 
 
 } }  // namespace v8::internal