Inline fast path for Array.indexOf() and Array.lastIndexOf().

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 "v8.h"
 
 #include "accessors.h"
@@ skipping 2233 matching lines @@
   bool TryArgumentsAccess(Property* 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,
+                            HValue* search_element,
+                            ElementsKind kind,
+                            ArrayIndexOfMode mode);
+
   HValue* ImplicitReceiverFor(HValue* function,
                               Handle<JSFunction> target);
 
   int InliningAstSize(Handle<JSFunction> target);
   bool TryInline(Handle<JSFunction> target,
                  int arguments_count,
                  HValue* implicit_return_value,
                  BailoutId ast_id,
                  BailoutId return_id,
                  InliningKind inlining_kind,
@@ skipping 546 matching lines @@
   }
 
  private:
   HGraphBuilder* builder_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_HYDROGEN_H_