1--TEST-- 2Bug #78341: Failure to detect smart branch in DFA pass 3--EXTENSIONS-- 4opcache 5--FILE-- 6<?php 7 8function test($a) { 9 // Just some dead code... 10 if (strpos("foo", "foo") !== 0) { 11 echo "Foo"; 12 } 13 14 $x = $a === null; 15 if ($x) { 16 var_dump($x); 17 } 18} 19test(null); 20 21?> 22--EXPECT-- 23bool(true) 24