Description:
------------
This leaks occurs on PHP 5.5(Git-2015-04-30), PHP 5.6(Git-2015-04-30).
But it does not occur on PHP 7.0(Git-2015-04-30)

My opcache configuration:
vagrant@php7dev:~$ php -i | grep opcache
opcache.blacklist_filename => no value => no value
opcache.consistency_checks => 0 => 0
opcache.dups_fix => Off => Off
opcache.enable => On => On
opcache.enable_cli => Off => Off
opcache.enable_file_override => Off => Off
opcache.error_log => no value => no value
opcache.fast_shutdown => 1 => 1
opcache.file_update_protection => 2 => 2
opcache.force_restart_timeout => 180 => 180
opcache.inherited_hack => On => On
opcache.interned_strings_buffer => 8 => 8
opcache.load_comments => 1 => 1
opcache.log_verbosity_level => 1 => 1
opcache.max_accelerated_files => 10000 => 10000
opcache.max_file_size => 0 => 0
opcache.max_wasted_percentage => 5 => 5
opcache.memory_consumption => 256 => 256
opcache.optimization_level => 0xFFFFFFFF => 0xFFFFFFFF
opcache.preferred_memory_model => no value => no value
opcache.protect_memory => 0 => 0
opcache.restrict_api => no value => no value
opcache.revalidate_freq => 2 => 2
opcache.revalidate_path => Off => Off
opcache.save_comments => 1 => 1
opcache.use_cwd => On => On
opcache.validate_timestamps => On => On


Test script:
---------------
<?php
$a = array(true);
if($a[0] && false) {
  echo 'test';
}
?>

Expected result:
----------------
Nothing happen.

Actual result:
--------------
Memory leaks.

vagrant@php7dev:~$ php -d opcache.enable_cli=1 -d opcache.optimization_level=0xFFFFFFFF leak.php
[Thu Apr 30 01:42:30 2015]  Script:  '/home/vagrant/leak.php'
/home/vagrant/php-src/Zend/zend_vm_execute.h(6257) :  Freeing 0x7F6A57B167E0 (32 bytes), script=/home/vagrant/leak.php
=== Total 1 memory leaks detected ===


When disabling opcache optimization, memory does not leak.

vagrant@php7dev:~$ php -d opcache.enable_cli=1 -d opcache.optimization_level=0 leak.php