xref: /PHP-7.4/ext/opcache/tests/opt/dce_008.phpt (revision 12edc453) 
1--TEST--
2DCE 008: Escaping of enclosed arrays doesn't prevent removal of enclosing array
3--INI--
4opcache.enable=1
5opcache.enable_cli=1
6opcache.optimization_level=-1
7opcache.opt_debug_level=0x20000
8opcache.preload=
9--SKIPIF--
10<?php require_once('skipif.inc'); ?>
11--FILE--
12<?php
13function esc(int $x) {
14        $a[0] = $x;
15        $b[0] = $a;
16        return $a;
17}
18--EXPECTF--
19$_main: ; (lines=1, args=0, vars=0, tmps=0)
20    ; (after optimizer)
21    ; %sdce_008.php:1-7
22L0 (7):     RETURN int(1)
23
24esc: ; (lines=4, args=1, vars=2, tmps=0)
25    ; (after optimizer)
26    ; %sdce_008.php:2-6
27L0 (2):     CV0($x) = RECV 1
28L1 (3):     ASSIGN_DIM CV1($a) int(0)
29L2 (3):     OP_DATA CV0($x)
30L3 (5):     RETURN CV1($a)
31