Emit mementos in crankshaft.

src/hydrogen-instructions.h

 // 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.
 
 #ifndef V8_HYDROGEN_INSTRUCTIONS_H_
 #define V8_HYDROGEN_INSTRUCTIONS_H_
 
 #include "src/v8.h"
 
 #include "src/allocation.h"
@@ skipping 2432 matching lines @@
   HCallFunction(HValue* context,
                 HValue* function,
                 int argument_count,
                 CallFunctionFlags flags = NO_CALL_FUNCTION_FLAGS)
       : HBinaryCall(context, function, argument_count), function_flags_(flags) {
   }
   CallFunctionFlags function_flags_;
 };
 
 
+class HAllocationMode V8_FINAL BASE_EMBEDDED {
+ public:
+  HAllocationMode(Handle<AllocationSite> feedback_site,
+                  HValue* current_site = NULL)
+      : current_site_(current_site), 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 HCallNew V8_FINAL : public HBinaryCall {
  public:
-  DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P2(HCallNew, HValue*, int);
+  DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P3(HCallNew, HValue*, int,
+                                              HAllocationMode);
 
   HValue* context() { return first(); }
   HValue* constructor() { return second(); }
+  HAllocationMode* allocation_mode() { return &mode_; }
 
   DECLARE_CONCRETE_INSTRUCTION(CallNew)
 
  private:
-  HCallNew(HValue* context, HValue* constructor, int argument_count)
-      : HBinaryCall(context, constructor, argument_count) {}
+  HCallNew(HValue* context, HValue* constructor, int argument_count,
+           HAllocationMode mode)
+      : HBinaryCall(context, constructor, argument_count),
+        mode_(mode) {}
+
+  HAllocationMode mode_;
 };
 
 
 class HCallNewArray V8_FINAL : public HBinaryCall {
  public:
-  DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P3(HCallNewArray,
+  DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P4(HCallNewArray,
                                               HValue*,
                                               int,
-                                              ElementsKind);
+                                              ElementsKind,
+                                              HAllocationMode);
 
   HValue* context() { return first(); }
   HValue* constructor() { return second(); }
 
   virtual void PrintDataTo(StringStream* stream) V8_OVERRIDE;
 
   ElementsKind elements_kind() const { return elements_kind_; }
+  HAllocationMode* allocation_mode() { return &mode_; }
 
   DECLARE_CONCRETE_INSTRUCTION(CallNewArray)
 
  private:
   HCallNewArray(HValue* context, HValue* constructor, int argument_count,
-                ElementsKind elements_kind)
+                ElementsKind elements_kind, HAllocationMode mode)
       : HBinaryCall(context, constructor, argument_count),
-        elements_kind_(elements_kind) {}
+        elements_kind_(elements_kind),
+        mode_(mode) {}
 
   ElementsKind elements_kind_;
+  HAllocationMode mode_;
 };
 
 
 class HCallRuntime V8_FINAL : public HCall<1> {
  public:
   DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P3(HCallRuntime,
                                               Handle<String>,
                                               const Runtime::Function*,
                                               int);
 
@@ skipping 5215 matching lines @@
   virtual bool IsDeletable() const V8_OVERRIDE { return true; }
 };
 
 
 #undef DECLARE_INSTRUCTION
 #undef DECLARE_CONCRETE_INSTRUCTION
 
 } }  // namespace v8::internal
 
 #endif  // V8_HYDROGEN_INSTRUCTIONS_H_