test_cmath.py

from_cpython/Lib/test/test_array.py

 # expected: reffail
+# - fails in interpreter due to keeping refcounts a bit too long
 """Test the arraymodule.
    Roger E. Masse
 """

from_cpython/Lib/test/test_ast.py

 # expected: reffail
+# - generator abandonment
 import sys, itertools, unittest
 from test import test_support
 import ast

from_cpython/Lib/test/test_cmath.py

-# expected: reffail
 from test.test_support import run_unittest
 from test.test_math import parse_testfile
 import unittest

src/runtime/float.cpp

@@ -157,6 +157,7 @@ extern "C" double PyFloat_AsDouble(PyObject* o) noexcept {
     fo = (BoxedFloat*)(*nb->nb_float)(o);
     if (fo == NULL)
         return -1;
+    AUTO_DECREF(fo);
     if (!PyFloat_Check(fo)) {
         PyErr_SetString(PyExc_TypeError, "nb_float should return float object");
         return -1;

src/runtime/objmodel.cpp

@@ -2313,7 +2313,8 @@ Box* getattrInternalEx(Box* obj, BoxedString* attr, GetattrRewriteArgs* rewrite_
             RewriterVar* r_rtn
                 = rewrite_args->rewriter->call(true, (void*)Helper::call, rewrite_args->obj,
                                                rewrite_args->rewriter->loadConst((intptr_t)attr, Location::forArg(1)),
-                                               rewrite_args->rewriter->loadConst(cls_only, Location::forArg(2)));
+                                               rewrite_args->rewriter->loadConst(cls_only, Location::forArg(2)))
+                      ->setType(RefType::OWNED);
             rewrite_args->setReturn(r_rtn, ReturnConvention::NOEXC_POSSIBLE);
             return Helper::call(obj, attr, cls_only);
         }
@@ -2584,9 +2585,10 @@ Box* getattrInternalGeneric(Box* obj, BoxedString* attr, GetattrRewriteArgs* rew
                     static Box* call(Box* obj, BoxedString* attr) { return xincref(obj->getattr(attr)); }
                 };
 
-                RewriterVar* r_rtn = rewrite_args->rewriter->call(
-                    false, (void*)Helper::call, rewrite_args->obj,
-                    rewrite_args->rewriter->loadConst((intptr_t)attr, Location::forArg(1)));
+                RewriterVar* r_rtn
+                    = rewrite_args->rewriter->call(false, (void*)Helper::call, rewrite_args->obj,
+                                                   rewrite_args->rewriter->loadConst(
+                                                       (intptr_t)attr, Location::forArg(1)))->setType(RefType::OWNED);
                 rewrite_args->setReturn(r_rtn, ReturnConvention::NOEXC_POSSIBLE);
                 return Helper::call(obj, attr);
             }