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| author | Raymond Hettinger <python@rcn.com> | 2004-11-02 04:20:10 +0000 |
|---|---|---|
| committer | Raymond Hettinger <python@rcn.com> | 2004-11-02 04:20:10 +0000 |
| commit | ec4890fa183ca08b61e95491efb5ba40d941698c (patch) | |
| tree | e0dd85e5aa860a2addeedfa6084b63d34fe5ffa9 /Python/compile.c | |
| parent | c1a81c56ae19f030800721d92f2480b0721c99d1 (diff) | |
| download | cpython-ec4890fa183ca08b61e95491efb5ba40d941698c.tar.gz | |
Maintain peepholer's cumlc invariant by updating the running total
everytime a LOAD_CONSTANT is encountered, created, or overwritten.
Added two tests to cover cases affected by the patch.
Diffstat (limited to 'Python/compile.c')
| -rw-r--r-- | Python/compile.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Python/compile.c b/Python/compile.c index d47f8d53fe..be81ba0b1a 100644 --- a/Python/compile.c +++ b/Python/compile.c @@ -586,6 +586,7 @@ optimize_code(PyObject *code, PyObject* consts, PyObject *names, PyObject *linen if (PyList_GET_ITEM(consts, j) == Py_None) { codestr[i] = LOAD_CONST; SETARG(codestr, i, j); + cumlc = lastlc + 1; break; } } @@ -601,6 +602,7 @@ optimize_code(PyObject *code, PyObject* consts, PyObject *names, PyObject *linen !PyObject_IsTrue(PyList_GET_ITEM(consts, j))) continue; memset(codestr+i, NOP, 7); + cumlc = 0; break; /* Try to fold tuples of constants. @@ -615,6 +617,8 @@ optimize_code(PyObject *code, PyObject* consts, PyObject *names, PyObject *linen codestr[h] == LOAD_CONST && ISBASICBLOCK(blocks, h, 3*(j+1)) && tuple_of_constants(&codestr[h], j, consts)) { + assert(codestr[i] == LOAD_CONST); + cumlc = 1; break; } /* Intentional fallthrough */ |