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Fix embarrassing typo and fix constantification of None

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This commit is contained in:
Raymond Hettinger 2007-03-02 19:20:46 +00:00
parent 117a05ed50
commit 20e1199fbe
2 changed files with 15 additions and 6 deletions
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5
Lib/test/test_peepholer.py
View file

@ -49,6 +49,11 @@ def f(x):
self.assert_(elem not in asm) self.assert_(elem not in asm)
for elem in ('LOAD_CONST', '(None)'): for elem in ('LOAD_CONST', '(None)'):
self.assert_(elem in asm) self.assert_(elem in asm)
def f():
'Adding a docstring made this test fail in Py2.5.0'
return None
self.assert_('LOAD_CONST' in disassemble(f))
self.assert_('LOAD_GLOBAL' not in disassemble(f))
def test_while_one(self): def test_while_one(self):
# Skip over: LOAD_CONST trueconst JUMP_IF_FALSE xx POP_TOP # Skip over: LOAD_CONST trueconst JUMP_IF_FALSE xx POP_TOP

16
Python/peephole.c
View file

@ -1,4 +1,4 @@
/* Peehole optimizations for bytecode compiler. */ /* Peephole optimizations for bytecode compiler. */
#include "Python.h" #include "Python.h"
@ -386,13 +386,17 @@ PyCode_Optimize(PyObject *code, PyObject* consts, PyObject *names,
if (name == NULL || strcmp(name, "None") != 0) if (name == NULL || strcmp(name, "None") != 0)
continue; continue;
for (j=0 ; j < PyList_GET_SIZE(consts) ; j++) { for (j=0 ; j < PyList_GET_SIZE(consts) ; j++) {
if (PyList_GET_ITEM(consts, j) == Py_None) { if (PyList_GET_ITEM(consts, j) == Py_None)
codestr[i] = LOAD_CONST;
SETARG(codestr, i, j);
cumlc = lastlc + 1;
break; 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; break;
/* Skip over LOAD_CONST trueconst /* Skip over LOAD_CONST trueconst