Optimize the assembly code generated for Math.random()

src/assembler.h

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // 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.
 //
@@ skipping 381 matching lines @@
   explicit ExternalReference(Top::AddressId id);
 
   explicit ExternalReference(const SCTableReference& table_ref);
 
   // One-of-a-kind references. These references are not part of a general
   // pattern. This means that they have to be added to the
   // ExternalReferenceTable in serialize.cc manually.
 
   static ExternalReference perform_gc_function();
   static ExternalReference fill_heap_number_with_random_function();
+  static ExternalReference random_uint32_function();
   static ExternalReference transcendental_cache_array_address();
 
   // Static data in the keyed lookup cache.
   static ExternalReference keyed_lookup_cache_keys();
   static ExternalReference keyed_lookup_cache_field_offsets();
 
   // Static variable Factory::the_hole_value.location()
   static ExternalReference the_hole_value_location();
 
   // Static variable Heap::roots_address()
@@ skipping 125 matching lines @@
   unsigned int num_bits_set;
   for (num_bits_set = 0; x; x >>= 1) {
     num_bits_set += x & 1;
   }
   return num_bits_set;
 }
 
 } }  // namespace v8::internal
 
 #endif  // V8_ASSEMBLER_H_