1--TEST--
2JIT ASSIGN_OP: 008 Arrays merging with itself
3--INI--
4opcache.enable=1
5opcache.enable_cli=1
6opcache.file_update_protection=0
7--FILE--
8<?php
9function test() {
10	$a = [];
11    for ($i = 0; $i < 2; $i++) {
12        $a + $a += $a;
13        $a['b'] += 1;
14    }
15}
16test();
17?>
18DONE
19--EXPECTF--
20Warning: Undefined array key "b" in %sassign_op_008.php on line 6
21DONE
22