Fix issue 268 by explicitly calling Unuse (to deallocate all contained...

src/codegen.cc

 // Copyright 2007-2008 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 35 matching lines @@
     position_(masm_->current_position()) {
   generator->AddDeferred(this);
   ASSERT(statement_position_ != RelocInfo::kNoPosition);
   ASSERT(position_ != RelocInfo::kNoPosition);
 #ifdef DEBUG
   comment_ = "";
 #endif
 }
 
 
+void CodeGenerator::ClearDeferred() {
+  for (int i = 0; i < deferred_.length(); i++) {
+    deferred_[i]->Clear();
+  }
+}
+
+
 void CodeGenerator::ProcessDeferred() {
   while (!deferred_.is_empty()) {
     DeferredCode* code = deferred_.RemoveLast();
     MacroAssembler* masm = code->masm();
     // Record position of deferred code stub.
     masm->RecordStatementPosition(code->statement_position());
     if (code->position() != RelocInfo::kNoPosition) {
       masm->RecordPosition(code->position());
     }
     // Generate the code.
     Comment cmnt(masm, code->comment());
     code->Generate();
     ASSERT(code->enter()->is_bound());
+    code->Clear();
   }
 }
 
 
 void CodeGenerator::SetFrame(VirtualFrame* new_frame,
                              RegisterFile* non_frame_registers) {
   RegisterFile saved_counts;
   if (has_valid_frame()) {
     frame_->DetachFromCodeGenerator();
     // The remaining register reference counts are the non-frame ones.
@@ skipping 498 matching lines @@
 void ArgumentsAccessStub::Generate(MacroAssembler* masm) {
   switch (type_) {
     case READ_LENGTH: GenerateReadLength(masm); break;
     case READ_ELEMENT: GenerateReadElement(masm); break;
     case NEW_OBJECT: GenerateNewObject(masm); break;
   }
 }
 
 
 } }  // namespace v8::internal