Add untagged double versions of Math.sin and Math.cos.

src/heap.h

 // Copyright 2010 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1950 matching lines @@
   // Size of objects alive after last GC.
   static intptr_t alive_after_last_gc_;
 
   static double last_gc_end_timestamp_;
 };
 
 
 class TranscendentalCache {
  public:
   enum Type {ACOS, ASIN, ATAN, COS, EXP, LOG, SIN, TAN, kNumberOfCaches};
+  static const int kTranscendentalTypeBits = 3;
+  STATIC_ASSERT((1 << kTranscendentalTypeBits) >= kNumberOfCaches);
 
   explicit TranscendentalCache(Type t);
 
   // Returns a heap number with f(input), where f is a math function specified
   // by the 'type' argument.
   MUST_USE_RESULT static inline MaybeObject* Get(Type type, double input) {
     TranscendentalCache* cache = caches_[type];
     if (cache == NULL) {
       caches_[type] = cache = new TranscendentalCache(type);
     }
@@ skipping 125 matching lines @@
   // Return whether this object should be retained. If NULL is returned the
   // object has no references. Otherwise the address of the retained object
   // should be returned as in some GC situations the object has been moved.
   virtual Object* RetainAs(Object* object) = 0;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_HEAP_H_