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GH-136410: Faster side exits by using a cold exit stub (GH-136411)

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Mark Shannon 2025-08-01 16:26:07 +01:00 • committed by GitHub
parent 718e0c89ba
commit e7b55f564d
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15 changed files with 387 additions and 267 deletions
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15
Include/internal/pycore_optimizer.h
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@ -67,8 +67,9 @@ typedef struct {
#endif
} _PyUOpInstruction;
typedef struct {
typedef struct _PyExitData {
uint32_t target;
uint16_t index;
_Py_BackoffCounter temperature;
struct _PyExecutorObject *executor;
} _PyExitData;
@ -354,6 +355,16 @@ PyAPI_FUNC(PyObject *) _Py_uop_symbols_test(PyObject *self, PyObject *ignored);
PyAPI_FUNC(int) _PyOptimizer_Optimize(_PyInterpreterFrame *frame, _Py_CODEUNIT *start, _PyExecutorObject **exec_ptr, int chain_depth);
static inline _PyExecutorObject *_PyExecutor_FromExit(_PyExitData *exit)
{
_PyExitData *exit0 = exit - exit->index;
return (_PyExecutorObject *)(((char *)exit0) - offsetof(_PyExecutorObject, exits));
}
extern _PyExecutorObject *_PyExecutor_GetColdExecutor(void);
PyAPI_FUNC(void) _PyExecutor_ClearExit(_PyExitData *exit);
static inline int is_terminator(const _PyUOpInstruction *uop)
{
int opcode = uop->opcode;
@ -363,6 +374,8 @@ static inline int is_terminator(const _PyUOpInstruction *uop)
);
}
extern void _PyExecutor_Free(_PyExecutorObject *self);
PyAPI_FUNC(int) _PyDumpExecutors(FILE *out);
#ifdef _Py_TIER2
extern void _Py_ClearExecutorDeletionList(PyInterpreterState *interp);