[php-src] Issue #12560: Assertion `0 && "too long jmp distance"' failed with new JIT on AArch64

Issue: https://github.com/php/php-src/issues/12560 Author: pfustc ### Description Hi @dstogov, we recently monitored below assertion failure after the integration of the new PHP JIT (#12079). The issue is reproducible by running some tests in the [phpunit](https://github.com/sebastianbergmann/phpunit) repo on **AArch64**. - Checkout and build ``` $ git clone https://github.com/sebastianbergmann/phpunit.git $ cd phpunit $ composer install ``` - Run a test ``` $ php -d zend_extension=/home/work/php-src/modules/opcache.so -d opcache.jit_buffer_size=128M \ -d opcache.enable_cli=1 ./phpunit tests/unit/Framework/AssertTest.php PHPUnit 11.0-gddc736d9b by Sebastian Bergmann and contributors. Runtime: PHP 8.4.0-dev Configuration: /tmp/phpunit/phpunit.xml ............................................................... 63 / 598 ( 10%) ............................................................... 126 / 598 ( 21%) ............................................................... 189 / 598 ( 31%) ............................................................... 252 / 598 ( 42%) ............................................................... 315 / 598 ( 52%) ............................................................... 378 / 598 ( 63%) ............................................................... 441 / 598 ( 73%) ............................................................... 504 / 598 ( 84%) php: /home/work/php-src/ext/opcache/jit/ir/ir_aarch64.dasc:5609: ir_add_veneer: Assertion `0 && "too long jmp distance"' failed. Aborted (core dumped) ``` ### PHP Version master @ https://github.com/php/php-src/commit/4c6dbe0dd075bc324abbea85592d1d780bbbe062 ### Operating System Ubuntu 22.04