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-rw-r--r--Python/peephole.c16
1 files changed, 10 insertions, 6 deletions
diff --git a/Python/peephole.c b/Python/peephole.c
index f2fe6ce..7111331 100644
--- a/Python/peephole.c
+++ b/Python/peephole.c
@@ -1,4 +1,4 @@
-/* Peehole optimizations for bytecode compiler. */
+/* Peephole optimizations for bytecode compiler. */
#include "Python.h"
@@ -386,13 +386,17 @@ PyCode_Optimize(PyObject *code, PyObject* consts, PyObject *names,
if (name == NULL || strcmp(name, "None") != 0)
continue;
for (j=0 ; j < PyList_GET_SIZE(consts) ; j++) {
- if (PyList_GET_ITEM(consts, j) == Py_None) {
- codestr[i] = LOAD_CONST;
- SETARG(codestr, i, j);
- cumlc = lastlc + 1;
+ if (PyList_GET_ITEM(consts, j) == Py_None)
break;
- }
}
+ if (j == PyList_GET_SIZE(consts)) {
+ if (PyList_Append(consts, Py_None) == -1)
+ goto exitUnchanged;
+ }
+ assert(PyList_GET_ITEM(consts, j) == Py_None);
+ codestr[i] = LOAD_CONST;
+ SETARG(codestr, i, j);
+ cumlc = lastlc + 1;
break;
/* Skip over LOAD_CONST trueconst