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bpo-44187: Quickening infrastructure (GH-26264)

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* Add co_firstinstr field to code object.

* Implement barebones quickening.

* Use non-quickened bytecode when tracing.

* Add NEWS item

* Add new file to Windows build.

* Don't specialize instructions with EXTENDED_ARG.
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Mark Shannon 2021-06-07 18:38:06 +01:00 • committed by GitHub
parent 89e50ab36f
commit 001eb520b5
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12 changed files with 416 additions and 12 deletions
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14
Python/sysmodule.c
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@ -18,6 +18,7 @@ Data members:
#include "pycore_ceval.h" // _Py_RecursionLimitLowerWaterMark()
#include "pycore_initconfig.h" // _PyStatus_EXCEPTION()
#include "pycore_object.h" // _PyObject_IS_GC()
#include "pycore_code.h" // _Py_QuickenedCount
#include "pycore_pathconfig.h" // _PyPathConfig_ComputeSysPath0()
#include "pycore_pyerrors.h" // _PyErr_Fetch()
#include "pycore_pylifecycle.h" // _PyErr_WriteUnraisableDefaultHook()
@ -1763,8 +1764,20 @@ sys_gettotalrefcount_impl(PyObject *module)
{
return _Py_GetRefTotal();
}
#endif /* Py_REF_DEBUG */
/*[clinic input]
sys._getquickenedcount -> Py_ssize_t
[clinic start generated code]*/
static Py_ssize_t
sys__getquickenedcount_impl(PyObject *module)
/*[clinic end generated code: output=1ab259e7f91248a2 input=249d448159eca912]*/
{
return _Py_QuickenedCount;
}
/*[clinic input]
sys.getallocatedblocks -> Py_ssize_t
@ -1995,6 +2008,7 @@ static PyMethodDef sys_methods[] = {
#endif
SYS_GETFILESYSTEMENCODING_METHODDEF
SYS_GETFILESYSTEMENCODEERRORS_METHODDEF
SYS__GETQUICKENEDCOUNT_METHODDEF
#ifdef Py_TRACE_REFS
{"getobjects", _Py_GetObjects, METH_VARARGS},
#endif