Changing string length field type from int to SMI. It will make it be a regu...

src/ia32/macro-assembler-ia32.cc

 // Copyright 2006-2009 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 892 matching lines @@
                      scratch1,
                      result,
                      scratch2,
                      scratch3,
                      gc_required,
                      TAG_OBJECT);
 
   // Set the map, length and hash field.
   mov(FieldOperand(result, HeapObject::kMapOffset),
       Immediate(Factory::string_map()));
-  mov(FieldOperand(result, String::kLengthOffset), length);
+  mov(scratch1, length);
+  SmiTag(scratch1);
+  mov(FieldOperand(result, String::kLengthOffset), scratch1);
   mov(FieldOperand(result, String::kHashFieldOffset),
       Immediate(String::kEmptyHashField));
 }
 
 
 void MacroAssembler::AllocateAsciiString(Register result,
                                          Register length,
                                          Register scratch1,
                                          Register scratch2,
                                          Register scratch3,
@@ skipping 12 matching lines @@
                      scratch1,
                      result,
                      scratch2,
                      scratch3,
                      gc_required,
                      TAG_OBJECT);
 
   // Set the map, length and hash field.
   mov(FieldOperand(result, HeapObject::kMapOffset),
       Immediate(Factory::ascii_string_map()));
-  mov(FieldOperand(result, String::kLengthOffset), length);
+  mov(scratch1, length);
+  SmiTag(scratch1);
+  mov(FieldOperand(result, String::kLengthOffset), scratch1);
   mov(FieldOperand(result, String::kHashFieldOffset),
       Immediate(String::kEmptyHashField));
 }
 
 
 void MacroAssembler::AllocateConsString(Register result,
                                         Register scratch1,
                                         Register scratch2,
                                         Label* gc_required) {
   // Allocate heap number in new space.
@@ skipping 738 matching lines @@
   // Indicate that code has changed.
   CPU::FlushICache(address_, size_);
 
   // Check that the code was patched as expected.
   ASSERT(masm_.pc_ == address_ + size_);
   ASSERT(masm_.reloc_info_writer.pos() == address_ + size_ + Assembler::kGap);
 }
 
 
 } }  // namespace v8::internal