Description:
------------
Part of php-code doesnt work correctly on the sigle servers, but working good at ~100 other servers.

CPU: Intel(R) Pentium(R) 4 CPU 3.00GHz (3000.13-MHz 686-class CPU)

Reproduce code:
---------------
<?php
$a = -5883499359;
$b = 177392;
var_dump($a);
var_dump($b);
$a ^= $b;
var_dump($a);
?> 

Expected result:
----------------
float(-5883499359)
int(177392)
int(-1588438959)

Actual result:
--------------
float(-5883499359)
int(177392)
int(-2147306256)