traverseda
/
cpython
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Move body of CALL_FUNCTION opcode into helper function. 

This makes the code much easier to ready, because it is at a sane
indentation level.  On my box this shows a 1-2% speedup, which means
nothing, except that I'm not going to worry about the performance
effects of the change.
This commit is contained in:
Jeremy Hylton 2002-08-16 17:47:26 +00:00
parent 84b2bed435
commit e8c0432403
1 changed files with 56 additions and 54 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

110
Python/ceval.c
View File

@ -33,6 +33,7 @@ typedef PyObject *(*callproc)(PyObject *, PyObject *, PyObject *);
/* Forward declarations */
static PyObject *eval_frame(PyFrameObject *);
static PyObject *call_function(PyObject ***, int);
static PyObject *fast_function(PyObject *, PyObject ***, int, int, int);
static PyObject *fast_cfunction(PyObject *, PyObject ***, int);
static PyObject *do_call(PyObject *, PyObject ***, int, int);
@ -1964,60 +1965,11 @@ eval_frame(PyFrameObject *f)
continue;
case CALL_FUNCTION:
{
int na = oparg & 0xff;
int nk = (oparg>>8) & 0xff;
int n = na + 2 * nk;
PyObject **pfunc = stack_pointer - n - 1;
PyObject *func = *pfunc;
/* Always dispatch PyCFunction first, because
these are presumed to be the most frequent
callable object.
*/
if (PyCFunction_Check(func) && nk == 0) {
int flags = PyCFunction_GET_FLAGS(func);
if (flags & (METH_VARARGS | METH_KEYWORDS)) {
PyObject *callargs;
callargs = load_args(&stack_pointer, na);
x = PyCFunction_Call(func, callargs, NULL);
Py_XDECREF(callargs);
} else
x = fast_cfunction(func,
&stack_pointer, na);
} else {
if (PyMethod_Check(func)
&& PyMethod_GET_SELF(func) != NULL) {
/* optimize access to bound methods */
PyObject *self = PyMethod_GET_SELF(func);
Py_INCREF(self);
func = PyMethod_GET_FUNCTION(func);
Py_INCREF(func);
Py_DECREF(*pfunc);
*pfunc = self;
na++;
n++;
} else
Py_INCREF(func);
if (PyFunction_Check(func)) {
x = fast_function(func, &stack_pointer,
n, na, nk);
} else {
x = do_call(func, &stack_pointer,
na, nk);
}
Py_DECREF(func);
}
while (stack_pointer > pfunc) {
w = POP();
Py_DECREF(w);
}
PUSH(x);
if (x != NULL)
continue;
break;
}
x = call_function(&stack_pointer, oparg);
PUSH(x);
if (x != NULL)
continue;
break;
case CALL_FUNCTION_VAR:
case CALL_FUNCTION_KW:
@ -3194,6 +3146,56 @@ PyEval_GetFuncDesc(PyObject *func)
#define EXT_POP(STACK_POINTER) (*--(STACK_POINTER))
static PyObject *
call_function(PyObject ***pp_stack, int oparg)
{
int na = oparg & 0xff;
int nk = (oparg>>8) & 0xff;
int n = na + 2 * nk;
PyObject **pfunc = (*pp_stack) - n - 1;
PyObject *func = *pfunc;
PyObject *x, *w;
/* Always dispatch PyCFunction first, because
these are presumed to be the most frequent
callable object.
*/
if (PyCFunction_Check(func) && nk == 0) {
int flags = PyCFunction_GET_FLAGS(func);
if (flags & (METH_VARARGS | METH_KEYWORDS)) {
PyObject *callargs;
callargs = load_args(pp_stack, na);
x = PyCFunction_Call(func, callargs, NULL);
Py_XDECREF(callargs);
} else
x = fast_cfunction(func, pp_stack, na);
} else {
if (PyMethod_Check(func) && PyMethod_GET_SELF(func) != NULL) {
/* optimize access to bound methods */
PyObject *self = PyMethod_GET_SELF(func);
Py_INCREF(self);
func = PyMethod_GET_FUNCTION(func);
Py_INCREF(func);
Py_DECREF(*pfunc);
*pfunc = self;
na++;
n++;
} else
Py_INCREF(func);
if (PyFunction_Check(func))
x = fast_function(func, pp_stack, n, na, nk);
else
x = do_call(func, pp_stack, na, nk);
Py_DECREF(func);
}
while ((*pp_stack) > pfunc) {
w = EXT_POP(*pp_stack);
Py_DECREF(w);
}
return x;
}
/* The two fast_xxx() functions optimize calls for which no argument
tuple is necessary; the objects are passed directly from the stack.
fast_cfunction() is called for METH_OLDARGS functions.