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gh-141786: Fix missing parent executor during JIT of trace #142286

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gh-141786: Fix missing parent executor during JIT of trace #142286

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4 changes: 4 additions & 0 deletions 4 Python/ceval.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1407,6 +1407,10 @@ stop_tracing_and_jit(PyThreadState *tstate, _PyInterpreterFrame *frame)
else {
// Likewise, we hold a strong reference to the executor containing this exit, so the exit is guaranteed
// to be valid to access.
if (!exit->executor->vm_data.linked || !exit->executor->vm_data.valid) {
// gh-141786 Parent executor is either unlinked or invalid - cannot optimize.
err = -1;
}
if (err <= 0) {
exit->temperature = restart_backoff_counter(exit->temperature);
}
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6 changes: 5 additions & 1 deletion 6 Python/optimizer.c
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Expand Up @@ -140,6 +140,11 @@ _PyOptimizer_Optimize(
}
assert(!interp->compiling);
assert(_tstate->jit_tracer_state.initial_state.stack_depth >= 0);
_PyExitData *exit = _tstate->jit_tracer_state.initial_state.exit;
if (exit != NULL && (!exit->executor->vm_data.linked || !exit->executor->vm_data.valid)) {
// gh-141786 Parent executor is either unlinked or invalid - cannot optimize.
return 0;
}
#ifndef Py_GIL_DISABLED
assert(_tstate->jit_tracer_state.initial_state.func != NULL);
interp->compiling = true;
Expand Down Expand Up @@ -185,7 +190,6 @@ _PyOptimizer_Optimize(
else {
executor->vm_data.code = NULL;
}
_PyExitData *exit = _tstate->jit_tracer_state.initial_state.exit;
if (exit != NULL) {
exit->executor = executor;
}
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