1--TEST-- 2SCCP 032: Yield from optimizations 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 test(): Generator { 15 $result = yield from []; 16 $a = []; 17 yield from $a; 18 yield $result; 19 $a[] = 3; 20 yield from $a; 21} 22foreach (test() as $x) { 23 var_export($x); 24 echo "\n"; 25} 26?> 27--EXPECTF-- 28$_main: 29 ; (lines=11, args=0, vars=1, tmps=2) 30 ; (after optimizer) 31 ; %ssccp_032.php:1-15 320000 INIT_FCALL 0 %d string("test") 330001 V2 = DO_UCALL 340002 V1 = FE_RESET_R V2 0009 350003 FE_FETCH_R V1 CV0($x) 0009 360004 INIT_FCALL 1 %d string("var_export") 370005 SEND_VAR CV0($x) 1 380006 DO_ICALL 390007 ECHO string(" 40") 410008 JMP 0003 420009 FE_FREE V1 430010 RETURN int(1) 44LIVE RANGES: 45 1: 0003 - 0009 (loop) 46 47test: 48 ; (lines=5, args=0, vars=0, tmps=1) 49 ; (after optimizer) 50 ; %ssccp_032.php:2-9 510000 GENERATOR_CREATE 520001 YIELD null 530002 T0 = YIELD_FROM array(...) 540003 FREE T0 550004 GENERATOR_RETURN null 56NULL 573 58
