bpo-46841: Quicken code in-place (GH-31888)

* Moves the bytecode to the end of the corresponding PyCodeObject, and quickens it in-place.

* Removes the almost-always-unused co_varnames, co_freevars, and co_cellvars member caches

* _PyOpcode_Deopt is a new mapping from all opcodes to their un-quickened forms.

* _PyOpcode_InlineCacheEntries is renamed to _PyOpcode_Caches

* _Py_IncrementCountAndMaybeQuicken is renamed to _PyCode_Warmup

* _Py_Quicken is renamed to _PyCode_Quicken

* _co_quickened is renamed to _co_code_adaptive (and is now a read-only memoryview).

* Do not emit unused nonzero opargs anymore in the compiler.

1 files changed, 5 insertions, 5 deletions

diff --git a/Objects/clinic/codeobject.c.h b/Objects/clinic/codeobject.c.h
index ee425f6..272bcd6 100644
--- a/Objects/clinic/codeobject.c.h
+++ b/Objects/clinic/codeobject.c.h
@@ -203,12 +203,12 @@ code_replace(PyCodeObject *self, PyObject *const *args, Py_ssize_t nargs, PyObje
     int co_stacksize = self->co_stacksize;
     int co_flags = self->co_flags;
     int co_firstlineno = self->co_firstlineno;
-    PyBytesObject *co_code = (PyBytesObject *)self->co_code;
+    PyBytesObject *co_code = NULL;
     PyObject *co_consts = self->co_consts;
     PyObject *co_names = self->co_names;
-    PyObject *co_varnames = self->co_varnames;
-    PyObject *co_freevars = self->co_freevars;
-    PyObject *co_cellvars = self->co_cellvars;
+    PyObject *co_varnames = NULL;
+    PyObject *co_freevars = NULL;
+    PyObject *co_cellvars = NULL;
     PyObject *co_filename = self->co_filename;
     PyObject *co_name = self->co_name;
     PyObject *co_qualname = self->co_qualname;
@@ -456,4 +456,4 @@ code__varname_from_oparg(PyCodeObject *self, PyObject *const *args, Py_ssize_t n
 exit:
     return return_value;
 }
-/*[clinic end generated code: output=9e8c4a19474ec520 input=a9049054013a1b77]*/
+/*[clinic end generated code: output=b1b83a70ffc5b7cd input=a9049054013a1b77]*/