Emit mementos in crankshaft.

src/hydrogen.h

Index: src/hydrogen.h
diff --git a/src/hydrogen.h b/src/hydrogen.h
index acf1d15d8fb06e824c9521db01e83007b9587623..7858f068f59524e9bd421d50e510995aae26fc8a 100644
--- a/src/hydrogen.h
+++ b/src/hydrogen.h
@@ -1005,37 +1005,6 @@ class HIfContinuation V8_FINAL {
 };
 
 
-class HAllocationMode V8_FINAL BASE_EMBEDDED {
- public:
-  explicit HAllocationMode(Handle<AllocationSite> feedback_site)
-      : current_site_(NULL), feedback_site_(feedback_site),
-        pretenure_flag_(NOT_TENURED) {}
-  explicit HAllocationMode(HValue* current_site)
-      : current_site_(current_site), pretenure_flag_(NOT_TENURED) {}
-  explicit HAllocationMode(PretenureFlag pretenure_flag)
-      : current_site_(NULL), pretenure_flag_(pretenure_flag) {}
-  HAllocationMode()
-      : current_site_(NULL), pretenure_flag_(NOT_TENURED) {}
-
-  HValue* current_site() const { return current_site_; }
-  Handle<AllocationSite> feedback_site() const { return feedback_site_; }
-
-  bool CreateAllocationMementos() const V8_WARN_UNUSED_RESULT {
-    return current_site() != NULL;
-  }
-
-  PretenureFlag GetPretenureMode() const V8_WARN_UNUSED_RESULT {
-    if (!feedback_site().is_null()) return feedback_site()->GetPretenureMode();
-    return pretenure_flag_;
-  }
-
- private:
-  HValue* current_site_;
-  Handle<AllocationSite> feedback_site_;
-  PretenureFlag pretenure_flag_;
-};
-
-
 class HGraphBuilder {
  public:
   explicit HGraphBuilder(CompilationInfo* info)
@@ -2074,6 +2043,8 @@ class HOptimizedGraphBuilder : public HGraphBuilder, public AstVisitor {
   void operator delete(void* pointer, Zone* zone) { }
   void operator delete(void* pointer) { }
 
+  void InitializeAllocationModeForCallNew(CallNew* expr, HAllocationMode* mode);
+
   DEFINE_AST_VISITOR_SUBCLASS_MEMBERS();
 
  protected:
@@ -2261,9 +2232,10 @@ class HOptimizedGraphBuilder : public HGraphBuilder, public AstVisitor {
   bool TryCallApply(Call* expr);
 
   bool TryHandleArrayCall(Call* expr, HValue* function);
-  bool TryHandleArrayCallNew(CallNew* expr, HValue* function);
+  bool TryHandleArrayCallNew(CallNew* expr, HValue* function,
+                             HAllocationMode mode);
   void BuildArrayCall(Expression* expr, int arguments_count, HValue* function,
-                      Handle<AllocationSite> cell);
+                      Handle<AllocationSite> cell, HAllocationMode mode);
 
   enum ArrayIndexOfMode { kFirstIndexOf, kLastIndexOf };
   HValue* BuildArrayIndexOf(HValue* receiver,
@@ -2360,7 +2332,7 @@ class HOptimizedGraphBuilder : public HGraphBuilder, public AstVisitor {
 
   bool IsCallArrayInlineable(int argument_count, Handle<AllocationSite> site);
   void BuildInlinedCallArray(Expression* expression, int argument_count,
-                             Handle<AllocationSite> site);
+                             HAllocationMode mode, Handle<AllocationSite> site);
 
   class PropertyAccessInfo {
    public: