Loads and stores to global vars are now made via property cell shortcuts installed into parent scri…

src/hydrogen.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_H_
 #define V8_HYDROGEN_H_
 
 #include "src/v8.h"
 
 #include "src/accessors.h"
@@ skipping 1578 matching lines @@
     //   ...
     //   if_finally.Else();
     //   // continues after else code of if_whatever or if_something.
     //   ...
     //   if_finally.End();
     void JoinContinuation(HIfContinuation* continuation);
 
     void Then();
     void Else();
     void End();
+    void EndUnreachable();
 
     void Deopt(Deoptimizer::DeoptReason reason);
     void ThenDeopt(Deoptimizer::DeoptReason reason) {
       Then();
       Deopt(reason);
     }
     void ElseDeopt(Deoptimizer::DeoptReason reason) {
       Else();
       Deopt(reason);
     }
@@ skipping 244 matching lines @@
                                     HValue* previous_object_size,
                                     HValue* payload);
 
   HInstruction* BuildConstantMapCheck(Handle<JSObject> constant);
   HInstruction* BuildCheckPrototypeMaps(Handle<JSObject> prototype,
                                         Handle<JSObject> holder);
 
   HInstruction* BuildGetNativeContext(HValue* closure);
   HInstruction* BuildGetNativeContext();
   HInstruction* BuildGetScriptContext(int context_index);
+  // Builds a loop version if |depth| is specified or unrolls the loop to
+  // |depth_value| iterations otherwise.
+  HValue* BuildGetParentContext(HValue* depth, int depth_value);
+
   HInstruction* BuildGetArrayFunction();
   HValue* BuildArrayBufferViewFieldAccessor(HValue* object,
                                             HValue* checked_object,
                                             FieldIndex index);
 
 
  protected:
   void SetSourcePosition(int position) {
     if (position != RelocInfo::kNoPosition) {
       position_.set_position(position - start_position_);
@@ skipping 1177 matching lines @@
   }
 
  private:
   HGraphBuilder* builder_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_HYDROGEN_H_