mirror of
https://github.com/php/php-src.git
synced 2026-04-28 10:43:30 +02:00
Bob Weinand
71 lines
1.5 KiB
PHP
71 lines
1.5 KiB
PHP
--TEST--
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Nullsafe basic optimization
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--INI--
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opcache.enable=1
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opcache.enable_cli=1
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opcache.opt_debug_level=0x20000
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zend_test.observer.enabled=0
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--EXTENSIONS--
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opcache
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--FILE--
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<?php
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function test() {
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$null = null;
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var_dump($null?->foo);
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var_dump(isset($null?->foo));
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var_dump(empty($null?->foo));
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}
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function test2(object $obj) {
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// TODO: Optimize the JMP_NULL away.
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var_dump($obj?->foo);
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var_dump(isset($obj?->foo));
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var_dump(empty($obj?->foo));
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}
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?>
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--EXPECTF--
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$_main:
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; (lines=1, args=0, vars=0, tmps=0)
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; (after optimizer)
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; %s
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0000 RETURN int(1)
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test:
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; (lines=10, args=0, vars=0, tmps=0)
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; (after optimizer)
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; %s
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0000 INIT_FCALL 1 %d string("var_dump")
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0001 SEND_VAL null 1
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0002 DO_ICALL
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0003 INIT_FCALL 1 %d string("var_dump")
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0004 SEND_VAL bool(false) 1
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0005 DO_ICALL
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0006 INIT_FCALL 1 %d string("var_dump")
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0007 SEND_VAL bool(true) 1
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0008 DO_ICALL
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0009 RETURN null
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test2:
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; (lines=17, args=1, vars=1, tmps=1)
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; (after optimizer)
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; %s
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0000 CV0($obj) = RECV 1
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0001 INIT_FCALL 1 %d string("var_dump")
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0002 T1 = JMP_NULL CV0($obj) 0004
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0003 T1 = FETCH_OBJ_R CV0($obj) string("foo")
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0004 SEND_VAL T1 1
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0005 DO_ICALL
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0006 INIT_FCALL 1 %d string("var_dump")
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0007 T1 = JMP_NULL CV0($obj) 0009
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0008 T1 = ISSET_ISEMPTY_PROP_OBJ (isset) CV0($obj) string("foo")
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0009 SEND_VAL T1 1
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0010 DO_ICALL
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0011 INIT_FCALL 1 %d string("var_dump")
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0012 T1 = JMP_NULL CV0($obj) 0014
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0013 T1 = ISSET_ISEMPTY_PROP_OBJ (empty) CV0($obj) string("foo")
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0014 SEND_VAL T1 1
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0015 DO_ICALL
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0016 RETURN null
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