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bpo-43693: Compute deref offsets in compiler (gh-25152)

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Merges locals and cells into a single array.
Saves a pointer in the interpreter and means that we don't need the LOAD_CLOSURE opcode any more

https://bugs.python.org/issue43693
This commit is contained in:
Mark Shannon 2021-06-04 01:03:54 +01:00 • committed by GitHub
parent 35002aa8f6
commit b2bf2bc1ec
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GPG key ID: 4AEE18F83AFDEB23
11 changed files with 222 additions and 209 deletions
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22
Objects/clinic/codeobject.c.h generated
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@ -375,7 +375,7 @@ exit:
}
PyDoc_STRVAR(code__varname_from_oparg__doc__,
"_varname_from_oparg($self, /, oparg, *, cell=False)\n"
"_varname_from_oparg($self, /, oparg)\n"
"--\n"
"\n"
"(internal-only) Return the local variable name for the given oparg.\n"
@ -386,18 +386,16 @@ PyDoc_STRVAR(code__varname_from_oparg__doc__,
{"_varname_from_oparg", (PyCFunction)(void(*)(void))code__varname_from_oparg, METH_FASTCALL|METH_KEYWORDS, code__varname_from_oparg__doc__},
static PyObject *
code__varname_from_oparg_impl(PyCodeObject *self, int oparg, int cell);
code__varname_from_oparg_impl(PyCodeObject *self, int oparg);
static PyObject *
code__varname_from_oparg(PyCodeObject *self, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
PyObject *return_value = NULL;
static const char * const _keywords[] = {"oparg", "cell", NULL};
static const char * const _keywords[] = {"oparg", NULL};
static _PyArg_Parser _parser = {NULL, _keywords, "_varname_from_oparg", 0};
PyObject *argsbuf[2];
Py_ssize_t noptargs = nargs + (kwnames ? PyTuple_GET_SIZE(kwnames) : 0) - 1;
PyObject *argsbuf[1];
int oparg;
int cell = 0;
args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 1, 1, 0, argsbuf);
if (!args) {
@ -407,17 +405,9 @@ code__varname_from_oparg(PyCodeObject *self, PyObject *const *args, Py_ssize_t n
if (oparg == -1 && PyErr_Occurred()) {
goto exit;
}
if (!noptargs) {
goto skip_optional_kwonly;
}
cell = PyObject_IsTrue(args[1]);
if (cell < 0) {
goto exit;
}
skip_optional_kwonly:
return_value = code__varname_from_oparg_impl(self, oparg, cell);
return_value = code__varname_from_oparg_impl(self, oparg);
exit:
return return_value;
}
/*[clinic end generated code: output=43f4eef80d584fe0 input=a9049054013a1b77]*/
/*[clinic end generated code: output=ba4c5487e0364ce8 input=a9049054013a1b77]*/