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GH-131498: Cases generator: Parse down to C statement level. (GH-131948)

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* Parse down to statement level in the cases generator

* Add handling for #if macros, treating them much like normal ifs.
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Mark Shannon 2025-04-02 16:31:59 +01:00 • committed by GitHub
parent 6e91d1f9aa
commit ad053d8d6a
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16 changed files with 795 additions and 959 deletions
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8
Python/bytecodes.c
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@ -163,7 +163,7 @@ dummy_func(
op(_CHECK_PERIODIC_IF_NOT_YIELD_FROM, (--)) {
if ((oparg & RESUME_OPARG_LOCATION_MASK) < RESUME_AFTER_YIELD_FROM) {
_Py_CHECK_EMSCRIPTEN_SIGNALS_PERIODICALLY();
QSBR_QUIESCENT_STATE(tstate); \
QSBR_QUIESCENT_STATE(tstate);
if (_Py_atomic_load_uintptr_relaxed(&tstate->eval_breaker) & _PY_EVAL_EVENTS_MASK) {
int err = _Py_HandlePending(tstate);
ERROR_IF(err != 0, error);
@ -2245,7 +2245,8 @@ dummy_func(
PyObject *attr_o = FT_ATOMIC_LOAD_PTR_ACQUIRE(*value_ptr);
DEOPT_IF(attr_o == NULL);
#ifdef Py_GIL_DISABLED
if (!_Py_TryIncrefCompareStackRef(value_ptr, attr_o, &attr)) {
int increfed = _Py_TryIncrefCompareStackRef(value_ptr, attr_o, &attr);
if (!increfed) {
DEOPT_IF(true);
}
#else
@ -2322,7 +2323,8 @@ dummy_func(
}
STAT_INC(LOAD_ATTR, hit);
#ifdef Py_GIL_DISABLED
if (!_Py_TryIncrefCompareStackRef(&ep->me_value, attr_o, &attr)) {
int increfed = _Py_TryIncrefCompareStackRef(&ep->me_value, attr_o, &attr);
if (!increfed) {
DEOPT_IF(true);
}
#else