Add phase zone to CompilationInfo and use it in GVN pass.

src/compiler.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 35 matching lines @@
 #include "runtime-profiler.h"
 #include "scanner-character-streams.h"
 #include "scopeinfo.h"
 #include "scopes.h"
 #include "vm-state-inl.h"
 
 namespace v8 {
 namespace internal {
 
 
-CompilationInfo::CompilationInfo(Handle<Script> script, Zone* zone)
+CompilationInfo::CompilationInfo(Handle<Script> script,
+                                 Zone* zone,
+                                 Zone* phase_zone)
     : flags_(LanguageModeField::encode(CLASSIC_MODE)),
       script_(script),
       osr_ast_id_(BailoutId::None()) {
-  Initialize(script->GetIsolate(), BASE, zone);
+  Initialize(script->GetIsolate(), BASE, zone, phase_zone);
 }
 
 
 CompilationInfo::CompilationInfo(Handle<SharedFunctionInfo> shared_info,
-                                 Zone* zone)
+                                 Zone* zone,
+                                 Zone* phase_zone)
     : flags_(LanguageModeField::encode(CLASSIC_MODE) | IsLazy::encode(true)),
       shared_info_(shared_info),
       script_(Handle<Script>(Script::cast(shared_info->script()))),
       osr_ast_id_(BailoutId::None()) {
-  Initialize(script_->GetIsolate(), BASE, zone);
+  Initialize(script_->GetIsolate(), BASE, zone, phase_zone);
 }
 
 
-CompilationInfo::CompilationInfo(Handle<JSFunction> closure, Zone* zone)
+CompilationInfo::CompilationInfo(Handle<JSFunction> closure,
+                                 Zone* zone,
+                                 Zone* phase_zone)
     : flags_(LanguageModeField::encode(CLASSIC_MODE) | IsLazy::encode(true)),
       closure_(closure),
       shared_info_(Handle<SharedFunctionInfo>(closure->shared())),
       script_(Handle<Script>(Script::cast(shared_info_->script()))),
       context_(closure->context()),
       osr_ast_id_(BailoutId::None()) {
-  Initialize(script_->GetIsolate(), BASE, zone);
+  Initialize(script_->GetIsolate(), BASE, zone, phase_zone);
 }
 
 
 CompilationInfo::CompilationInfo(HydrogenCodeStub* stub,
-                                 Isolate* isolate, Zone* zone)
+                                 Isolate* isolate,
+                                 Zone* zone,
+                                 Zone* phase_zone)
     : flags_(LanguageModeField::encode(CLASSIC_MODE) |
              IsLazy::encode(true)),
       osr_ast_id_(BailoutId::None()) {
-  Initialize(isolate, STUB, zone);
+  Initialize(isolate, STUB, zone, phase_zone);
   code_stub_ = stub;
 }
 
 
-void CompilationInfo::Initialize(Isolate* isolate, Mode mode, Zone* zone) {
+void CompilationInfo::Initialize(Isolate* isolate,
+                                 Mode mode,
+                                 Zone* zone,
+                                 Zone* phase_zone) {
   isolate_ = isolate;
   function_ = NULL;
   scope_ = NULL;
   global_scope_ = NULL;
   extension_ = NULL;
   pre_parse_data_ = NULL;
   zone_ = zone;
+  phase_zone_ = phase_zone;
   deferred_handles_ = NULL;
   code_stub_ = NULL;
   prologue_offset_ = kPrologueOffsetNotSet;
   opt_count_ = shared_info().is_null() ? 0 : shared_info()->opt_count();
   no_frame_ranges_ = isolate->cpu_profiler()->is_profiling()
                    ? new List<OffsetRange>(2) : NULL;
   for (int i = 0; i < DependentCode::kGroupCount; i++) {
     dependent_maps_[i] = NULL;
   }
   if (mode == STUB) {
@@ skipping 1087 matching lines @@
     }
   }
 
   GDBJIT(AddCode(Handle<String>(shared->DebugName()),
                  Handle<Script>(info->script()),
                  Handle<Code>(info->code()),
                  info));
 }
 
 } }  // namespace v8::internal