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= 9--SKIPIF-- 10<?php require_once('skipif.inc'); ?> 11--FILE-- 12<?php 13function foo(int $x, int $y) { 14 $a = [$x]; 15 $a[1] = $y; 16 $a = $y; 17 return $a; 18} 19--EXPECTF-- 20$_main: ; (lines=1, args=0, vars=0, tmps=0) 21 ; (after optimizer) 22 ; %sdce_004.php:1-8 23L0 (8): RETURN int(1) 24 25foo: ; (lines=4, args=2, vars=3, tmps=0) 26 ; (after optimizer) 27 ; %sdce_004.php:2-7 28L0 (2): CV0($x) = RECV 1 29L1 (2): CV1($y) = RECV 2 30L2 (5): CV2($a) = QM_ASSIGN CV1($y) 31L3 (6): RETURN CV2($a) 32