Failing Psalm unit tests on windows with function JIT

[danog]

Description

Psalm end to end tests on the master branch are segfaulting with function JIT enabled.

https://github.com/vimeo/psalm/actions/runs/13793644553/job/38579742315?pr=11342

To reproduce, fork Psalm (master branch), uncomment https://github.com/vimeo/psalm/blob/master/.github/workflows/windows-ci.yml#L62, remove the next line and start the unit tests.

Ping @dstogov, @nielsdos.

PHP Version

PHP 8.4.4

Operating System

Microsoft Windows Server 2022 10.0.20348

[dstogov]

@danog Thanks for the report, but I need a reduced test case.

[iluuu1994]

@danog Can you reproduce this locally? Preferably when running only one test? It's going to be very hard to diagnose otherwise.

[nielsdos]

FWIW the Windows exit code corresponds to 0xc0000005, i.e. ACCESS_VIOLATION.

On my Linux machine I get:

[niels@ARCH psalm]$ /run/media/niels/MoreData/php-8.4/sapi/cli/php -d opcache.enable=1 -d opcache.enable_cli=1 -d opcache.jit=function -d opcache.jit_buffer_size=256M -d zend_extension=/run/media/niels/MoreData/php-8.4/modules/opcache.so -f ./psalm
ir_base[6813] is in use list of ir_base[1]
php: /run/media/niels/MoreData/php-8.4/ext/opcache/jit/ir/ir_check.c:391: ir_check: Assertion `ok' failed.
Aborted (core dumped)

Déjà vu, I think this is dstogov/ir#109, and indeed backporting that allows me to run the psalm command. This particular issue fix is in queue for 8.4.6, and not released yet.
If that assertion failure is not the root cause, it's possible your issue was already fixed too anyway. There a few JIT fixes in 8.4.5 (and 8.4-dev) as well.

[dstogov]

@nielsdos thanks for analysing.

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[github-actions]

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