Added test

Author: dstogov

ext/opcache/tests/jit/bug81226.phpt

@@ -0,0 +1,29 @@
+--TEST--
+Bug #81226: Integer overflow behavior is different with JIT enabled
+--INI--
+opcache.enable=1
+opcache.enable_cli=1
+opcache.jit_buffer_size=1M
+opcache.jit=tracing
+--SKIPIF--
+<?php require_once('skipif.inc'); ?>
+<?php if (PHP_INT_SIZE != 8) die("skip: 64-bit only"); ?>
+--FILE--
+<?php
+// 65-bit hexadecimal number
+$hex = '10000000000000041';
+
+for ($i = 0; $i < 200; ++$i) {
+    $characterReferenceCode = 0;
+
+    for ($j = 0, $len = strlen($hex); $j < $len; ++$j) {
+        $characterReferenceCode *= 16;
+        $characterReferenceCode += ord($hex[$j]) - 0x0030;
+    }
+
+    assert($characterReferenceCode > 0x10FFFF);
+}
+?>
+OK
+--EXPECT--
+OK