CI: Run JIT compliance tests in CI (fix LLVM skip in PHPUnit)

[PurHur]

Problem

Locally, script/ci-local.sh reports 133 JIT compliance tests skipped and 133 VM compliance tests passing (266 total). The JIT suite never exercises LLVM paths in the default CI path, so JIT regressions slip through.

JITTest::setUp() calls PHPLLVM\Chooser::choose() and skips on failure; in the compliance run, all JIT tests skip while VM tests run.

Goal

GHA / ci-local.sh must run both VM and JIT compliance with a clear pass/fail signal for JIT.

Tasks

• Reproduce skip reason (LLVM path, LD_LIBRARY_PATH, extension load order)
• Ensure phpunit.xml.dist <env name="LD_LIBRARY_PATH" value="./.llvm"/> works when .llvm exists
• Mirror ExampleWebAotTest env setup in JITTest or shared bootstrap
• Fail CI if LLVM is expected but JIT suite is 100% skipped
• Split optional “LLVM required” job vs VM-only job in CI: Add GitHub Actions workflow for PHPUnit (VM, compliance, real, AOT) #47

Acceptance criteria

bash script/ci-local.sh --testsuite "PHPCompiler Compliance Test Suites" reports JIT tests executed (not all skipped) when .llvm/libLLVM-9.so.1 is present.

Key files

• test/compliance/JITTest.php
• test/bootstrap.php
• script/ci-local.sh
• phpunit.xml.dist

Related

• CI: Add GitHub Actions workflow for PHPUnit (VM, compliance, real, AOT) #47 (GitHub Actions)
• DevEx: Document and stabilize host-based workflow (ci-local.sh, LLVM 9) #46 (host workflow docs)

[PurHur]

De-dupe / local CI note (backlog audit 2026-05-19)

#47 (GitHub Actions) is closed — .github/workflows/ci.yml runs vendor/bin/phpunit --exclude-group llvm then --group llvm when .llvm/libLLVM-9.so.1 exists.

This issue remains open for harness parity:

• Runforge / Docker hosts should use script/ci-local.sh or script/docker-ci-local.sh (tar pipe when bind-mount is empty) as the source of truth — not GHA.
• GHA sets PHP_COMPILER_SKIP_SERVE_TESTS=1; that is unrelated to JIT skips but means local Docker CI must still run serve tests — see new Testing: Run HTTP serve integration tests in Docker local CI #234.
• Cold containers re-download LLVM 9 each run unless Infrastructure: Pre-install LLVM 9 in 22.04 dev Docker image for JIT/AOT CI #237 pre-bakes the toolchain in the 22.04 image.

Acceptance for closing #98: script/ci-local.sh reports JIT compliance tests executed (not all skipped) when .llvm/ is present — verify with:

```bash
./script/docker-ci-local.sh # or host ./script/ci-local.sh after script/install-llvm9.sh
```

Do not block on GHA matrix changes; optional follow-up is documenting parity in README only.