xref: /PHP-8.2/ext/opcache/tests/opt/dce_003.phpt (revision e48a5c14)
1--TEST--
2DCE 003: Assignment elimination (without FREE)
3--INI--
4opcache.enable=1
5opcache.enable_cli=1
6opcache.optimization_level=-1
7opcache.opt_debug_level=0x20000
8opcache.preload=
9zend_test.observer.enabled=0
10--EXTENSIONS--
11opcache
12--FILE--
13<?php
14function foo(int $a) {
15    $b = $a += 3;
16    return $a;
17}
18?>
19--EXPECTF--
20$_main:
21     ; (lines=1, args=0, vars=0, tmps=0)
22     ; (after optimizer)
23     ; %sdce_003.php:1-7
240000 RETURN int(1)
25
26foo:
27     ; (lines=3, args=1, vars=1, tmps=0)
28     ; (after optimizer)
29     ; %sdce_003.php:2-5
300000 CV0($a) = RECV 1
310001 CV0($a) = ADD CV0($a) int(3)
320002 RETURN CV0($a)
33