Repository navigation
php-in-php: AOT LastErrorRuntimeLlvm — route standalone error_get_last through ErrorLastJitHelper PHP not LLVM globals (#1492) #9607
Description
Category
php-in-php · runtime
Problem
#9454 migrated JIT error_get_last() / error_clear_last() to compiled PHP via ext/standard/ErrorLastJitHelper.php, but AOT standalone still falls back to lib/JIT/Builtin/LastErrorRuntimeLlvm.php (~LLVM globals + hashtable builder) when Builtin::LOAD_TYPE_STANDALONE is set (LastErrorRuntime::implement() line 77–78).
VM and JIT hot paths use PHP helpers; standalone native binaries retain a parallel LLVM last-error stack (~duplicate semantics, malloc-backed message storage).
php-src reference
- php/php-src
ext/standard/basic_functions.c—error_get_last,error_clear_last - php/php-src
Zend/zend.c—EG(last_error_*)
Repro
./script/docker-exec.sh -- bash -lc 'source script/php-env.sh
# Build AOT binary from a script that reads last error after warning
cat >/tmp/last_err.php <<PHP
<?php
trigger_error("probe", E_USER_WARNING);
var_export(error_get_last());
PHP
php bin/compile.php /tmp/last_err.php -o /tmp/last_err
/tmp/last_err 2>/dev/null
# Inspect link: LastErrorRuntimeLlvm symbols still present in standalone module
rg -l LastErrorRuntimeLlvm lib/JIT/Builtin/LastErrorRuntime.php
'Today LastErrorRuntime.php explicitly documents: "AOT standalone keeps LastErrorRuntimeLlvm until compiled PHP static storage is reliable in native link".
Scope
| Layer | Files |
|---|---|
| JIT/AOT | lib/JIT/Builtin/LastErrorRuntime.php — always link ErrorLastJitHelper compiled PHP on standalone |
| Delete/shrink | lib/JIT/Builtin/LastErrorRuntimeLlvm.php bodies (or thin forwarders) |
| AOT link | lib/AOT/ emit path — static storage for helper strings like ProgressNoteRuntime migration |
| Tests | test/compliance/cases/stdlib/error_get_last_aot.phpt |
PHP-in-PHP first: last-error record in PHP statics; LLVM only for ABI trampoline if required.
Done when
- AOT standalone
error_get_last()matches VM/JIT associative shape aftertrigger_error() -
LastErrorRuntimeLlvmdeleted or reduced to forward-only stubs with line count noted in PR -
./script/ci-fast.sh --filter error_get_lastgreen (VM + AOT fixture)
Related
- php-in-php: JIT LastErrorRuntime — route error_get_last/error_clear_last through VmErrorLast PHP not LLVM globals (#1492) #9454 (closed JIT path) · php-in-php: error_get_last() stack — delete phpc_last_error.c (~120 lines), VM+JIT from ext/standard #5534 · North star Epic: Self-host critical path — compiler compiles itself (M3→M5) #1492
Activity
PurHur commentedon Jun 18, 2026
claim: PHP Runtime → PHP — starting this run.
PurHur commentedon Jun 22, 2026
claim: PHP Runtime → PHP — starting this run (route AOT standalone error_get_last through ErrorLastJitHelper, delete LastErrorRuntimeLlvm).
Route AOT standalone last-error through ErrorLastJitHelper PHP (#9607)…
PurHur commentedon Jun 22, 2026
Merged via #10614.
Shrink: deleted
lib/JIT/Builtin/LastErrorRuntimeLlvm.php(427 lines). AOT standaloneLastErrorRuntime::implement()now uses the sameErrorLastJitHelperPHP bridges as JIT (viaNestedJitCompileScope).Verification (green):
LastErrorRuntimeStandaloneTest— ABI symbols +ErrorLastJitHelper::isActivecompiled, nophpc_last_error_activeglobalLastErrorRuntimeShrinkTest— noLastErrorRuntimeLlvmreferencephp script/bootstrap-inventory.php --check— OK 2873/2873Follow-up: full AOT
error_get_lastfixture compile still fails on master (pre-existingCliArgvJitHelper::createTableLLVM type mismatch during standalone link — separate from this migration).