Optimize the assembly code generated for Math.random()

src/serialize.cc

 // Copyright 2006-2008 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 316 matching lines @@
   // Runtime entries
   Add(ExternalReference::perform_gc_function().address(),
       RUNTIME_ENTRY,
       1,
       "Runtime::PerformGC");
   Add(ExternalReference::fill_heap_number_with_random_function().address(),
       RUNTIME_ENTRY,
       2,
       "V8::FillHeapNumberWithRandom");
 
+  Add(ExternalReference::random_uint32_function().address(),
+      RUNTIME_ENTRY,
+      3,
+      "V8::Random");
+
   // Miscellaneous
   Add(ExternalReference::the_hole_value_location().address(),
       UNCLASSIFIED,
       2,
       "Factory::the_hole_value().location()");
   Add(ExternalReference::roots_address().address(),
       UNCLASSIFIED,
       3,
       "Heap::roots_address()");
   Add(ExternalReference::address_of_stack_limit().address(),
@@ skipping 1019 matching lines @@
       fullness_[space] = RoundUp(fullness_[space], Page::kPageSize);
     }
   }
   int allocation_address = fullness_[space];
   fullness_[space] = allocation_address + size;
   return allocation_address;
 }
 
 
 } }  // namespace v8::internal