Use root array to load roots in generated ARM code....

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 654 matching lines @@
 
   // Miscellaneous
   Add(ExternalReference::builtin_passed_function().address(),
       UNCLASSIFIED,
       1,
       "Builtins::builtin_passed_function");
   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_guard_limit().address(),
       UNCLASSIFIED,
-      3,
+      4,
       "StackGuard::address_of_jslimit()");
   Add(ExternalReference::address_of_regexp_stack_limit().address(),
       UNCLASSIFIED,
-      4,
+      5,
       "RegExpStack::limit_address()");
   Add(ExternalReference::new_space_start().address(),
       UNCLASSIFIED,
       6,
       "Heap::NewSpaceStart()");
   Add(ExternalReference::heap_always_allocate_scope_depth().address(),
       UNCLASSIFIED,
       7,
       "Heap::always_allocate_scope_depth()");
   Add(ExternalReference::new_space_allocation_limit_address().address(),
       UNCLASSIFIED,
       8,
       "Heap::NewSpaceAllocationLimitAddress()");
   Add(ExternalReference::new_space_allocation_top_address().address(),
       UNCLASSIFIED,
       9,
       "Heap::NewSpaceAllocationTopAddress()");
 #ifdef ENABLE_DEBUGGER_SUPPORT
   Add(ExternalReference::debug_break().address(),
       UNCLASSIFIED,
-      5,
+      10,
       "Debug::Break()");
   Add(ExternalReference::debug_step_in_fp_address().address(),
       UNCLASSIFIED,
-      10,
+      11,
       "Debug::step_in_fp_addr()");
 #endif
   Add(ExternalReference::double_fp_operation(Token::ADD).address(),
       UNCLASSIFIED,
-      11,
+      12,
       "add_two_doubles");
   Add(ExternalReference::double_fp_operation(Token::SUB).address(),
       UNCLASSIFIED,
-      12,
+      13,
       "sub_two_doubles");
   Add(ExternalReference::double_fp_operation(Token::MUL).address(),
       UNCLASSIFIED,
-      13,
+      14,
       "mul_two_doubles");
   Add(ExternalReference::double_fp_operation(Token::DIV).address(),
       UNCLASSIFIED,
-      14,
+      15,
       "div_two_doubles");
   Add(ExternalReference::double_fp_operation(Token::MOD).address(),
       UNCLASSIFIED,
-      15,
+      16,
       "mod_two_doubles");
   Add(ExternalReference::compare_doubles().address(),
       UNCLASSIFIED,
-      16,
+      17,
       "compare_doubles");
 }
 
 
 ExternalReferenceEncoder::ExternalReferenceEncoder()
     : encodings_(Match) {
   ExternalReferenceTable* external_references =
       ExternalReferenceTable::instance();
   for (int i = 0; i < external_references->size(); ++i) {
     Put(external_references->address(i), i);
@@ skipping 911 matching lines @@
         ASSERT(index < large_objects_.length());
       }
       return large_objects_[index];  // s.page_offset() is ignored.
   }
   UNREACHABLE();
   return NULL;
 }
 
 
 } }  // namespace v8::internal