cpython/Include/internal/pycore_jit.h
Mark Shannon 469f191a85
GH-135379: Top of stack caching for the JIT. (GH-135465)
Uses three registers to cache values at the top of the evaluation stack
This significantly reduces memory traffic for smaller, more common uops.
2025-12-11 10:32:52 +00:00

35 lines
830 B
C

#ifndef Py_INTERNAL_JIT_H
#define Py_INTERNAL_JIT_H
#ifdef __cplusplus
extern "C" {
#endif
#include "pycore_interp.h"
#include "pycore_optimizer.h"
#include "pycore_stackref.h"
#ifndef Py_BUILD_CORE
# error "this header requires Py_BUILD_CORE define"
#endif
/* To be able to reason about code layout and branches, keep code size below 1 MB */
#define PY_MAX_JIT_CODE_SIZE ((1 << 20)-1)
#ifdef _Py_JIT
typedef _Py_CODEUNIT *(*jit_func)(
_PyInterpreterFrame *frame, _PyStackRef *stack_pointer, PyThreadState *tstate,
_PyStackRef _tos_cache0, _PyStackRef _tos_cache1, _PyStackRef _tos_cache2
);
int _PyJIT_Compile(_PyExecutorObject *executor, const _PyUOpInstruction *trace, size_t length);
void _PyJIT_Free(_PyExecutorObject *executor);
#endif // _Py_JIT
#ifdef __cplusplus
}
#endif
#endif // !Py_INTERNAL_JIT_H