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GH-129715: Remove _DYNAMIC_EXIT (GH-129716)

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Brandt Bucher 2025-02-07 11:41:17 -08:00 • committed by GitHub
parent e4a00f70b1
commit 5fa7e1b7fd
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13 changed files with 138 additions and 226 deletions
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36
Python/bytecodes.c
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@ -5117,42 +5117,6 @@ dummy_func(
DECREF_INPUTS();
}
tier2 op(_DYNAMIC_EXIT, (exit_p/4 --)) {
tstate->previous_executor = (PyObject *)current_executor;
_PyExitData *exit = (_PyExitData *)exit_p;
_Py_CODEUNIT *target = frame->instr_ptr;
#if defined(Py_DEBUG) && !defined(_Py_JIT)
OPT_HIST(trace_uop_execution_counter, trace_run_length_hist);
if (frame->lltrace >= 2) {
printf("DYNAMIC EXIT: [UOp ");
_PyUOpPrint(&next_uop[-1]);
printf(", exit %lu, temp %d, target %d -> %s]\n",
exit - current_executor->exits, exit->temperature.value_and_backoff,
(int)(target - _PyFrame_GetBytecode(frame)),
_PyOpcode_OpName[target->op.code]);
}
#endif
_PyExecutorObject *executor;
if (target->op.code == ENTER_EXECUTOR) {
PyCodeObject *code = _PyFrame_GetCode(frame);
executor = code->co_executors->executors[target->op.arg];
Py_INCREF(executor);
}
else {
if (!backoff_counter_triggers(exit->temperature)) {
exit->temperature = advance_backoff_counter(exit->temperature);
GOTO_TIER_ONE(target);
}
int optimized = _PyOptimizer_Optimize(frame, target, &executor, 0);
if (optimized <= 0) {
exit->temperature = restart_backoff_counter(exit->temperature);
GOTO_TIER_ONE(optimized < 0 ? NULL : target);
}
exit->temperature = initial_temperature_backoff_counter();
}
GOTO_TIER_TWO(executor);
}
tier2 op(_START_EXECUTOR, (executor/4 --)) {
Py_CLEAR(tstate->previous_executor);
#ifndef _Py_JIT