Optimize various forms of slice.call(arguments, ...)

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 2248 matching lines @@
     kUseCell,
     kUseGeneric
   };
   GlobalPropertyAccess LookupGlobalProperty(Variable* var,
                                             LookupResult* lookup,
                                             PropertyAccessType access_type);
 
   void EnsureArgumentsArePushedForAccess();
   bool TryArgumentsAccess(Property* expr);
 
+  // For indirect calls like .call and .apply
+  bool TryIndirectCall(Call* expr);
+  // For fun.call(...)
+  bool TryCallCall(Call* expr);
   // Try to optimize fun.apply(receiver, arguments) pattern.
   bool TryCallApply(Call* expr);
 
   bool TryHandleArrayCall(Call* expr, HValue* function);
   bool TryHandleArrayCallNew(CallNew* expr, HValue* function);
   void BuildArrayCall(Expression* expr, int arguments_count, HValue* function,
                       Handle<AllocationSite> cell);
 
   enum ArrayIndexOfMode { kFirstIndexOf, kLastIndexOf };
   HValue* BuildArrayIndexOf(HValue* receiver,
@@ skipping 246 matching lines @@
       Type* right_type,
       Type* combined_type,
       HSourcePosition left_position,
       HSourcePosition right_position,
       PushBeforeSimulateBehavior push_sim_result,
       BailoutId bailout_id);
 
   HInstruction* BuildStringCharCodeAt(HValue* string,
                                       HValue* index);
 
+  bool IsLiveArguments(Expression* expr);
+
   HValue* BuildBinaryOperation(
       BinaryOperation* expr,
       HValue* left,
       HValue* right,
       PushBeforeSimulateBehavior push_sim_result);
   HInstruction* BuildIncrement(bool returns_original_input,
                                CountOperation* expr);
   HInstruction* BuildKeyedGeneric(PropertyAccessType access_type,
                                   HValue* object,
                                   HValue* key,
@@ skipping 294 matching lines @@
   }
 
  private:
   HGraphBuilder* builder_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_HYDROGEN_H_