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= 9--EXTENSIONS-- 10opcache 11--FILE-- 12<?php 13function test(): Generator { 14 $result = yield from []; 15 $a = []; 16 yield from $a; 17 yield $result; 18 $a[] = 3; 19 yield from $a; 20} 21foreach (test() as $x) { 22 var_export($x); 23 echo "\n"; 24} 25?> 26--EXPECTF-- 27$_main: 28 ; (lines=11, args=0, vars=1, tmps=2) 29 ; (after optimizer) 30 ; %ssccp_032.php:1-15 310000 INIT_FCALL 0 %d string("test") 320001 V2 = DO_UCALL 330002 V1 = FE_RESET_R V2 0009 340003 FE_FETCH_R V1 CV0($x) 0009 350004 INIT_FCALL 1 %d string("var_export") 360005 SEND_VAR CV0($x) 1 370006 DO_ICALL 380007 ECHO string(" 39") 400008 JMP 0003 410009 FE_FREE V1 420010 RETURN int(1) 43LIVE RANGES: 44 1: 0003 - 0009 (loop) 45 46test: 47 ; (lines=5, args=0, vars=0, tmps=1) 48 ; (after optimizer) 49 ; %ssccp_032.php:2-9 500000 GENERATOR_CREATE 510001 YIELD null 520002 T0 = YIELD_FROM array(...) 530003 FREE T0 540004 GENERATOR_RETURN null 55NULL 563 57
