Optimize Function.prototype.call

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 626 matching lines @@
 
   bool ExpressionStackIsEmpty() const;
 
   HValue* ExpressionStackAt(int index_from_top) const {
     int index = length() - index_from_top - 1;
     DCHECK(HasExpressionAt(index));
     return values_[index];
   }
 
   void SetExpressionStackAt(int index_from_top, HValue* value);
+  HValue* RemoveExpressionStackAt(int index_from_top);
 
   HEnvironment* Copy() const;
   HEnvironment* CopyWithoutHistory() const;
   HEnvironment* CopyAsLoopHeader(HBasicBlock* block) const;
 
   // Create an "inlined version" of this environment, where the original
   // environment is the outer environment but the top expression stack
   // elements are moved to an inner environment as parameters.
   HEnvironment* CopyForInlining(Handle<JSFunction> target,
                                 int arguments,
@@ skipping 1648 matching lines @@
   enum GlobalPropertyAccess {
     kUseCell,
     kUseGeneric
   };
   GlobalPropertyAccess LookupGlobalProperty(Variable* var, LookupIterator* it,
                                             PropertyAccessType access_type);
 
   void EnsureArgumentsArePushedForAccess();
   bool TryArgumentsAccess(Property* expr);
 
-  // Try to optimize fun.apply(receiver, arguments) pattern.
-  bool TryCallApply(Call* expr);
+  // Shared code for .call and .apply optimizations.
+  void HandleIndirectCall(Call* expr, HValue* function, int arguments_count);
+  // Try to optimize indirect calls such as fun.apply(receiver, arguments)
+  // or fun.call(...).
+  bool TryIndirectCall(Call* expr);
+  void BuildFunctionApply(Call* expr);
+  void BuildFunctionCall(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,
                             HValue* search_element,
                             ElementsKind kind,
@@ skipping 15 matching lines @@
   bool TryInlineConstruct(CallNew* expr, HValue* implicit_return_value);
   bool TryInlineGetter(Handle<JSFunction> getter,
                        Handle<Map> receiver_map,
                        BailoutId ast_id,
                        BailoutId return_id);
   bool TryInlineSetter(Handle<JSFunction> setter,
                        Handle<Map> receiver_map,
                        BailoutId id,
                        BailoutId assignment_id,
                        HValue* implicit_return_value);
-  bool TryInlineApply(Handle<JSFunction> function,
-                      Call* expr,
-                      int arguments_count);
-  bool TryInlineBuiltinMethodCall(Call* expr,
-                                  HValue* receiver,
-                                  Handle<Map> receiver_map);
+  bool TryInlineIndirectCall(Handle<JSFunction> function, Call* expr,
+                             int arguments_count);
+  bool TryInlineBuiltinMethodCall(Call* expr, Handle<JSFunction> function,
+                                  Handle<Map> receiver_map,
+                                  int args_count_no_receiver);
   bool TryInlineBuiltinFunctionCall(Call* expr);
   enum ApiCallType {
     kCallApiFunction,
     kCallApiMethod,
     kCallApiGetter,
     kCallApiSetter
   };
   bool TryInlineApiMethodCall(Call* expr,
                               HValue* receiver,
                               SmallMapList* receiver_types);
@@ skipping 537 matching lines @@
   }
 
  private:
   HGraphBuilder* builder_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_HYDROGEN_H_