Rollback of r17108, r17106, r17104 in trunk branch.

src/spaces.cc

 // Copyright 2011 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 1038 matching lines @@
   p->InsertAfter(anchor_.prev_page());
 
   return true;
 }
 
 
 intptr_t PagedSpace::SizeOfFirstPage() {
   int size = 0;
   switch (identity()) {
     case OLD_POINTER_SPACE:
-      size = 72 * kPointerSize * KB;
+      size = 64 * kPointerSize * KB;
       break;
     case OLD_DATA_SPACE:
       size = 192 * KB;
       break;
     case MAP_SPACE:
       size = 16 * kPointerSize * KB;
       break;
     case CELL_SPACE:
       size = 16 * kPointerSize * KB;
       break;
     case PROPERTY_CELL_SPACE:
       size = 8 * kPointerSize * KB;
       break;
     case CODE_SPACE:
       if (heap()->isolate()->code_range()->exists()) {
         // When code range exists, code pages are allocated in a special way
         // (from the reserved code range). That part of the code is not yet
         // upgraded to handle small pages.
         size = AreaSize();
       } else {
-#if V8_TARGET_ARCH_MIPS
-        // On MIPS, code stubs seem to be quite a bit larger.
-        // TODO(olivf/MIPS folks): Can we do anything about this? Does it
-        // indicate the presence of a bug?
-        size = 464 * KB;
-#else
         size = 416 * KB;
-#endif
       }
       break;
     default:
       UNREACHABLE();
   }
   return Min(size, AreaSize());
 }
 
 
 int PagedSpace::CountTotalPages() {
@@ skipping 2131 matching lines @@
     object->ShortPrint();
     PrintF("\n");
   }
   printf(" --------------------------------------\n");
   printf(" Marked: %x, LiveCount: %x\n", mark_size, LiveBytes());
 }
 
 #endif  // DEBUG
 
 } }  // namespace v8::internal