1--TEST-- 2DCE 004: Elimination of assignment to non-escaping arrays 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 $x, int $y) { 15 $a = [$x]; 16 $a[1] = $y; 17 $a = $y; 18 return $a; 19} 20?> 21--EXPECTF-- 22$_main: 23 ; (lines=1, args=0, vars=0, tmps=0) 24 ; (after optimizer) 25 ; %sdce_004.php:1-9 260000 RETURN int(1) 27 28foo: 29 ; (lines=4, args=2, vars=3, tmps=0) 30 ; (after optimizer) 31 ; %sdce_004.php:2-7 320000 CV0($x) = RECV 1 330001 CV1($y) = RECV 2 340002 CV2($a) = QM_ASSIGN CV1($y) 350003 RETURN CV2($a) 36
