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

src/stub-cache-ia32.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 81 matching lines @@
 
   // Make sure that there are no register conflicts.
   ASSERT(!scratch.is(receiver));
   ASSERT(!scratch.is(name));
 
   // Check that the receiver isn't a smi.
   __ test(receiver, Immediate(kSmiTagMask));
   __ j(zero, &miss, not_taken);
 
   // Get the map of the receiver and compute the hash.
-  __ mov(scratch, FieldOperand(receiver, HeapObject::kMapOffset));
-  __ add(scratch, FieldOperand(name, String::kLengthOffset));
+  __ mov(scratch, FieldOperand(name, String::kLengthOffset));
+  __ add(scratch, FieldOperand(receiver, HeapObject::kMapOffset));
   __ xor_(scratch, flags);
   __ and_(scratch, (kPrimaryTableSize - 1) << kHeapObjectTagSize);
 
   // Probe the primary table.
   ProbeTable(masm, flags, kPrimary, name, scratch);
 
   // Primary miss: Compute hash for secondary probe.
   __ sub(scratch, Operand(name));
   __ add(Operand(scratch), Immediate(flags));
   __ and_(scratch, (kSecondaryTableSize - 1) << kHeapObjectTagSize);
@@ skipping 1127 matching lines @@
   GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
 
   // Return the generated code.
   return GetCode(CALLBACKS);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal