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-rw-r--r--Python/peephole.c15
1 files changed, 9 insertions, 6 deletions
diff --git a/Python/peephole.c b/Python/peephole.c
index e9da377dc6..139a62b858 100644
--- a/Python/peephole.c
+++ b/Python/peephole.c
@@ -297,7 +297,7 @@ PyCode_Optimize(PyObject *code, PyObject* consts, PyObject *names,
/* Bail out if an exception is set */
if (PyErr_Occurred())
- goto exitUnchanged;
+ goto exitError;
/* Bypass optimization when the lineno table is too complex */
assert(PyString_Check(lineno_obj));
@@ -315,7 +315,7 @@ PyCode_Optimize(PyObject *code, PyObject* consts, PyObject *names,
/* Make a modifiable copy of the code string */
codestr = (unsigned char *)PyMem_Malloc(codelen);
if (codestr == NULL)
- goto exitUnchanged;
+ goto exitError;
codestr = (unsigned char *)memcpy(codestr,
PyString_AS_STRING(code), codelen);
@@ -330,11 +330,11 @@ PyCode_Optimize(PyObject *code, PyObject* consts, PyObject *names,
/* Mapping to new jump targets after NOPs are removed */
addrmap = (int *)PyMem_Malloc(codelen * sizeof(int));
if (addrmap == NULL)
- goto exitUnchanged;
+ goto exitError;
blocks = markblocks(codestr, codelen);
if (blocks == NULL)
- goto exitUnchanged;
+ goto exitError;
assert(PyList_Check(consts));
for (i=0 ; i<codelen ; i += CODESIZE(codestr[i])) {
@@ -391,7 +391,7 @@ PyCode_Optimize(PyObject *code, PyObject* consts, PyObject *names,
}
if (j == PyList_GET_SIZE(consts)) {
if (PyList_Append(consts, Py_None) == -1)
- goto exitUnchanged;
+ goto exitError;
}
assert(PyList_GET_ITEM(consts, j) == Py_None);
codestr[i] = LOAD_CONST;
@@ -618,6 +618,9 @@ PyCode_Optimize(PyObject *code, PyObject* consts, PyObject *names,
PyMem_Free(blocks);
return code;
+ exitError:
+ code = NULL;
+
exitUnchanged:
if (blocks != NULL)
PyMem_Free(blocks);
@@ -625,6 +628,6 @@ PyCode_Optimize(PyObject *code, PyObject* consts, PyObject *names,
PyMem_Free(addrmap);
if (codestr != NULL)
PyMem_Free(codestr);
- Py_INCREF(code);
+ Py_XINCREF(code);
return code;
}