diff options
Diffstat (limited to 'Python')
| -rw-r--r-- | Python/ceval.c | 11 | ||||
| -rw-r--r-- | Python/marshal.c | 18 |
2 files changed, 20 insertions, 9 deletions
diff --git a/Python/ceval.c b/Python/ceval.c index c0e0993..b42444d 100644 --- a/Python/ceval.c +++ b/Python/ceval.c @@ -2011,7 +2011,18 @@ PyEval_EvalFrameEx(PyFrameObject *f, int throwflag) PREDICTED_WITH_ARG(JUMP_ABSOLUTE); case JUMP_ABSOLUTE: JUMPTO(oparg); +#if FAST_LOOPS + /* Enabling this path speeds-up all while and for-loops by bypassing + the per-loop checks for signals. By default, this should be turned-off + because it prevents detection of a control-break in tight loops like + "while 1: pass". Compile with this option turned-on when you need + the speed-up and do not need break checking inside tight loops (ones + that contain only instructions ending with goto fast_next_opcode). + */ + goto fast_next_opcode; +#else continue; +#endif case GET_ITER: /* before: [obj]; after [getiter(obj)] */ diff --git a/Python/marshal.c b/Python/marshal.c index a40aecc..3e106c2 100644 --- a/Python/marshal.c +++ b/Python/marshal.c @@ -147,7 +147,7 @@ w_object(PyObject *v, WFILE *p) else if (v == Py_True) { w_byte(TYPE_TRUE, p); } - else if (PyLong_Check(v)) { + else if (PyLong_CheckExact(v)) { long x = PyLong_AsLong(v); if ((x == -1) && PyErr_Occurred()) { PyLongObject *ob = (PyLongObject *)v; @@ -175,7 +175,7 @@ w_object(PyObject *v, WFILE *p) } } } - else if (PyFloat_Check(v)) { + else if (PyFloat_CheckExact(v)) { if (p->version > 1) { unsigned char buf[8]; if (_PyFloat_Pack8(PyFloat_AsDouble(v), @@ -196,7 +196,7 @@ w_object(PyObject *v, WFILE *p) } } #ifndef WITHOUT_COMPLEX - else if (PyComplex_Check(v)) { + else if (PyComplex_CheckExact(v)) { if (p->version > 1) { unsigned char buf[8]; if (_PyFloat_Pack8(PyComplex_RealAsDouble(v), @@ -228,7 +228,7 @@ w_object(PyObject *v, WFILE *p) } } #endif - else if (PyString_Check(v)) { + else if (PyString_CheckExact(v)) { w_byte(TYPE_STRING, p); n = PyString_GET_SIZE(v); if (n > INT_MAX) { @@ -240,7 +240,7 @@ w_object(PyObject *v, WFILE *p) w_long((long)n, p); w_string(PyString_AS_STRING(v), (int)n, p); } - else if (PyUnicode_Check(v)) { + else if (PyUnicode_CheckExact(v)) { PyObject *utf8; utf8 = PyUnicode_AsUTF8String(v); if (utf8 == NULL) { @@ -259,7 +259,7 @@ w_object(PyObject *v, WFILE *p) w_string(PyString_AS_STRING(utf8), (int)n, p); Py_DECREF(utf8); } - else if (PyTuple_Check(v)) { + else if (PyTuple_CheckExact(v)) { w_byte(TYPE_TUPLE, p); n = PyTuple_Size(v); w_long((long)n, p); @@ -267,7 +267,7 @@ w_object(PyObject *v, WFILE *p) w_object(PyTuple_GET_ITEM(v, i), p); } } - else if (PyList_Check(v)) { + else if (PyList_CheckExact(v)) { w_byte(TYPE_LIST, p); n = PyList_GET_SIZE(v); w_long((long)n, p); @@ -275,7 +275,7 @@ w_object(PyObject *v, WFILE *p) w_object(PyList_GET_ITEM(v, i), p); } } - else if (PyDict_Check(v)) { + else if (PyDict_CheckExact(v)) { Py_ssize_t pos; PyObject *key, *value; w_byte(TYPE_DICT, p); @@ -287,7 +287,7 @@ w_object(PyObject *v, WFILE *p) } w_object((PyObject *)NULL, p); } - else if (PyAnySet_Check(v)) { + else if (PyAnySet_CheckExact(v)) { PyObject *value, *it; if (PyObject_TypeCheck(v, &PySet_Type)) |