35 lines
727 B
PHP
35 lines
727 B
PHP
--TEST--
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DCE 001: Remove dead computation after constants propagation
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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.optimization_level=-1
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opcache.opt_debug_level=0x20000
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opcache.preload=
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--SKIPIF--
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<?php require_once('skipif.inc'); ?>
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--FILE--
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<?php
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function foo(string $s1, string $s2, string $s3, string $s4) {
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$x = ($s1 . $s2) . ($s3 . $s4);
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$x = 0;
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return $x;
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}
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?>
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--EXPECTF--
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$_main:
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; (lines=1, args=0, vars=0, tmps=0)
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; (after optimizer)
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; %sdce_001.php:1-8
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0000 RETURN int(1)
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foo:
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; (lines=5, args=4, vars=4, tmps=0)
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; (after optimizer)
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; %sdce_001.php:2-6
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0000 CV0($s1) = RECV 1
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0001 CV1($s2) = RECV 2
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0002 CV2($s3) = RECV 3
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0003 CV3($s4) = RECV 4
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0004 RETURN int(0)
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