1--TEST--
2JIT ASSIGN_OP: 006 concationation with itself
3--INI--
4opcache.enable=1
5opcache.enable_cli=1
6opcache.file_update_protection=0
7opcache.jit_buffer_size=1M
8--FILE--
9<?php
10function test($a) {
11    for ($i = 0; $i < 2; $i++) {
12        $a .= $a = $a;
13    }
14}
15test("");
16?>
17DONE
18--EXPECT--
19DONE
20