Exclude the bit-field bits from string hash codes. String hash codes...

src/heap.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 1854 matching lines @@
     return long_external_ascii_string_map();
   }
 
   // No match found.
   return NULL;
 }
 
 
 Object* Heap::AllocateSymbol(unibrow::CharacterStream* buffer,
                              int chars,
-                             int hash) {
+                             uint32_t length_field) {
   // Ensure the chars matches the number of characters in the buffer.
   ASSERT(static_cast<unsigned>(chars) == buffer->Length());
   // Determine whether the string is ascii.
   bool is_ascii = true;
   while (buffer->has_more()) {
     if (buffer->GetNext() > unibrow::Utf8::kMaxOneByteChar) is_ascii = false;
   }
   buffer->Rewind();
 
   // Compute map and object size.
@@ skipping 21 matching lines @@
   }
 
   // Allocate string.
   AllocationSpace space =
       (size > MaxHeapObjectSize()) ? LO_SPACE : OLD_DATA_SPACE;
   Object* result = AllocateRaw(size, space);
   if (result->IsFailure()) return result;
 
   reinterpret_cast<HeapObject*>(result)->set_map(map);
   // The hash value contains the length of the string.
-  String::cast(result)->set_length_field(hash);
+  String::cast(result)->set_length_field(length_field);
 
   ASSERT_EQ(size, String::cast(result)->Size());
 
   // Fill in the characters.
   for (int i = 0; i < chars; i++) {
     String::cast(result)->Set(i, buffer->GetNext());
   }
   return result;
 }
 
@@ skipping 1107 matching lines @@
       return "Scavenge";
     case MARK_COMPACTOR:
       return MarkCompactCollector::HasCompacted() ? "Mark-compact"
                                                   : "Mark-sweep";
   }
   return "Unknown GC";
 }
 
 
 } }  // namespace v8::internal