Assertion failure Zend/Optimizer/zend_inference.c:2086

Description

The following code:

<?php
require "connect.inc";
$link = ldap_connect_and_bind($uri, $user, $passwd, $protocol_version);
insert_dummy_data($link, $base);
$result = ldap_list($link, "$base", "(objectClass=person)");
$entry = ldap_first_entry($link, $result);
var_dump(
$entry = ldap_next_entry($link, $entry),
ldap_get_values($link, $entry, 'sn'),
$entry = ldap_next_entry($link, $entry)
);
$fusion = $base;
function renderRawGraph(array $parents) {
$fusion = array();
foreach ($parents as $p) {
foreach ($graph as $graph) {
$graph[$graph]['line'] = 1;
}
$graph[] = array(
'line' => 1,
);
}
}

Resulted in this output:

Warning: Narrowing occurred during type inference of ZEND_FETCH_DIM_W. Please file a bug report on https://github.com/php/php-src/issues in /tmp/test.php on line 17
php: /home/phpfuzz/WorkSpace/flowfusion/php-src/Zend/Optimizer/zend_inference.c:2086: void emit_type_narrowing_warning(const zend_op_array *, zend_ssa *, int): Assertion `0 && "Narrowing during type inference"' failed.
Aborted (core dumped)

To reproduce (only in JIT):

-d "zend_extension=/home/phpfuzz/WorkSpace/flowfusion/php-src/modules/opcace.so" -d "opcache.enable=1" -d "opcache.enable_cli=1" -d "opcache.jit=1254"

PHP Version

nightly

Operating System

ubuntu 22.04

Bắt đầu với Zend/Optimizer/zend_inference.c:2086 và tái hiện assertion bằng PHP nightly với opcache JIT được bật cùng snippet PHP được cung cấp. Hoàn tất có nghĩa là ví dụ không còn phát ra cảnh báo suy luận kiểu và không abort trong assertion path.