Dead Code
<?php
if ( $a < 42 ) {
echo "fourty";
return;
*echo "two";*
}
line #* E I O op return operands
2 0 E > IS_SMALLER ~1 !0, 42
1 > JMPZ ~1, ->5
3 2 > ECHO 'fourty'
4 3 > RETURN null
5 *4\* ECHO 'two'*
5 > > RETURN 1
Follow all branches
Find unreachable opcodes