Mercurial > cpython-lru_cache-weakref
diff Python/compile.c @ 33880:8a09c82e4261 legacy-trunk
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.
| author | Raymond Hettinger <python@rcn.com> |
|---|---|
| date | Tue, 02 Nov 2004 04:20:10 +0000 |
| parents | 24fc3eaa19e0 |
| children | e4404046e552 |
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--- a/Python/compile.c Tue Nov 02 02:11:35 2004 +0000 +++ b/Python/compile.c Tue Nov 02 04:20:10 2004 +0000 @@ -586,6 +586,7 @@ if (PyList_GET_ITEM(consts, j) == Py_None) { codestr[i] = LOAD_CONST; SETARG(codestr, i, j); + cumlc = lastlc + 1; break; } } @@ -601,6 +602,7 @@ !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 @@ 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 */