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bpo-45367: Specialize BINARY_MULTIPLY (GH-28727)

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Dennis Sweeney 2021-10-14 10:56:33 -04:00 • committed by GitHub
parent c96d1546b1
commit 3b3d30e8f7
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9 changed files with 162 additions and 55 deletions
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13
Objects/longobject.c
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@ -3594,13 +3594,11 @@ k_lopsided_mul(PyLongObject *a, PyLongObject *b)
return NULL;
}
static PyObject *
long_mul(PyLongObject *a, PyLongObject *b)
PyObject *
_PyLong_Multiply(PyLongObject *a, PyLongObject *b)
{
PyLongObject *z;
CHECK_BINOP(a, b);
/* fast path for single-digit multiplication */
if (IS_MEDIUM_VALUE(a) && IS_MEDIUM_VALUE(b)) {
stwodigits v = medium_value(a) * medium_value(b);
@ -3617,6 +3615,13 @@ long_mul(PyLongObject *a, PyLongObject *b)
return (PyObject *)z;
}
static PyObject *
long_mul(PyLongObject *a, PyLongObject *b)
{
CHECK_BINOP(a, b);
return _PyLong_Multiply(a, b);
}
/* Fast modulo division for single-digit longs. */
static PyObject *
fast_mod(PyLongObject *a, PyLongObject *b)