xref: /PHP-7.3/ext/opcache/tests/opt/dce_003.phpt (revision 705dc3f0) 
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
8--SKIPIF--
9<?php require_once('skipif.inc'); ?>
10--FILE--
11<?php
12function foo(int $a) {
13	$b = $a += 3;
14	return $a;
15}
16?>
17--EXPECTF--
18$_main: ; (lines=1, args=0, vars=0, tmps=0)
19    ; (after optimizer)
20    ; %sdce_003.php:1-7
21L0 (7):     RETURN int(1)
22
23foo: ; (lines=3, args=1, vars=1, tmps=0)
24    ; (after optimizer)
25    ; %sdce_003.php:2-5
26L0 (2):     CV0($a) = RECV 1
27L1 (3):     CV0($a) = ADD CV0($a) int(3)
28L2 (4):     RETURN CV0($a)
29