Refactor ScriptData class for cached compile data.

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/bootstrapper.h"
 #include "src/codegen.h"
@@ skipping 13 matching lines @@
 #include "src/scanner-character-streams.h"
 #include "src/scopeinfo.h"
 #include "src/scopes.h"
 #include "src/typing.h"
 #include "src/vm-state-inl.h"
 
 namespace v8 {
 namespace internal {
 
 
+ScriptData::ScriptData(const byte* data, int length)
+    : owns_data_(false), data_(data), length_(length) {
+  if (!IsAligned(reinterpret_cast<intptr_t>(data), kPointerAlignment)) {
+    byte* copy = NewArray<byte>(length);
+    ASSERT(IsAligned(reinterpret_cast<intptr_t>(data_), kPointerAlignment));
+    CopyBytes(copy, data, length);
+    data_ = copy;
+    AcquireDataOwnership();
+  }
+}
+
+
 CompilationInfo::CompilationInfo(Handle<Script> script,
                                  Zone* zone)
     : flags_(StrictModeField::encode(SLOPPY)),
       script_(script),
       osr_ast_id_(BailoutId::None()),
       parameter_count_(0),
       this_has_uses_(true),
       optimization_id_(-1),
       ast_value_factory_(NULL),
       ast_value_factory_owned_(false) {
@@ skipping 1280 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