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gh-90667: Add specializations of Py_DECREF when types are known (GH-30872)

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Dennis Sweeney 2022-04-19 14:02:19 -04:00 • committed by GitHub
parent ab0d35d70d
commit da6c78584b
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GPG key ID: 4AEE18F83AFDEB23
13 changed files with 147 additions and 85 deletions
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2
Include/internal/pycore_floatobject.h
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@ -38,6 +38,8 @@ struct _Py_float_state {
#endif
};
void _PyFloat_ExactDealloc(PyObject *op);
PyAPI_FUNC(void) _PyFloat_DebugMallocStats(FILE* out);

37
Include/internal/pycore_object.h
View file

@ -14,7 +14,6 @@ extern "C" {
#include "pycore_pystate.h" // _PyInterpreterState_GET()
#include "pycore_runtime.h" // _PyRuntime
#define _PyObject_IMMORTAL_INIT(type) \
{ \
.ob_refcnt = 999999999, \
@ -26,6 +25,42 @@ extern "C" {
.ob_size = size, \
}
PyAPI_FUNC(void) _Py_NO_RETURN _Py_FatalRefcountErrorFunc(
const char *func,
const char *message);
#define _Py_FatalRefcountError(message) _Py_FatalRefcountErrorFunc(__func__, message)
static inline void
_Py_DECREF_SPECIALIZED(PyObject *op, const destructor destruct)
{
#ifdef Py_REF_DEBUG
_Py_RefTotal--;
#endif
if (--op->ob_refcnt != 0) {
assert(op->ob_refcnt > 0);
}
else {
#ifdef Py_TRACE_REFS
_Py_ForgetReference(op);
#endif
destruct(op);
}
}
static inline void
_Py_DECREF_NO_DEALLOC(PyObject *op)
{
#ifdef Py_REF_DEBUG
_Py_RefTotal--;
#endif
op->ob_refcnt--;
#ifdef Py_DEBUG
if (op->ob_refcnt <= 0) {
_Py_FatalRefcountError("Expected a positive remaining refcount");
}
#endif
}
PyAPI_FUNC(int) _PyType_CheckConsistency(PyTypeObject *type);
PyAPI_FUNC(int) _PyDict_CheckConsistency(PyObject *mp, int check_content);

7
Include/internal/pycore_pyerrors.h
View file

@ -100,13 +100,6 @@ extern PyObject* _Py_Offer_Suggestions(PyObject* exception);
PyAPI_FUNC(Py_ssize_t) _Py_UTF8_Edit_Cost(PyObject *str_a, PyObject *str_b,
Py_ssize_t max_cost);
PyAPI_FUNC(void) _Py_NO_RETURN _Py_FatalRefcountErrorFunc(
const char *func,
const char *message);
#define _Py_FatalRefcountError(message) _Py_FatalRefcountErrorFunc(__func__, message)
#ifdef __cplusplus
}
#endif

1
Include/internal/pycore_unicodeobject.h
View file

@ -10,6 +10,7 @@ extern "C" {
#include "pycore_fileutils.h" // _Py_error_handler
void _PyUnicode_ExactDealloc(PyObject *op);
/* runtime lifecycle */