haoyang9804 opened a new issue #7057:
URL: https://github.com/apache/tvm/issues/7057
TVM fails when running the following code:
```python
import tvm
from tvm.relay.backend.interpreter import ConstructorValue
from tvm.relay.prelude import Prelude
from tvm.relay.testing import add_nat_definitions
mod = tvm.IRModule()
p = Prelude(mod)
add_nat_definitions(p)
z = p.z
res = ConstructorValue(z, [])
```
The error message is like
```
...
File
"/home/gakki/Desktop/shared/tvm/python/tvm/_ffi/_ctypes/packed_func.py", line
223, in __call__
values, tcodes, num_args = _make_tvm_args(args, temp_args)
File
"/home/gakki/Desktop/shared/tvm/python/tvm/_ffi/_ctypes/packed_func.py", line
119, in _make_tvm_args
values[i].v_handle = arg.handle
File "/home/gakki/Desktop/shared/tvm/python/tvm/runtime/object.py", line
62, in __getattr__
return _ffi_node_api.NodeGetAttr(self, name)
File
"/home/gakki/Desktop/shared/tvm/python/tvm/_ffi/_ctypes/packed_func.py", line
223, in __call__
values, tcodes, num_args = _make_tvm_args(args, temp_args)
File
"/home/gakki/Desktop/shared/tvm/python/tvm/_ffi/_ctypes/packed_func.py", line
119, in _make_tvm_args
values[i].v_handle = arg.handle
File "/home/gakki/Desktop/shared/tvm/python/tvm/runtime/object.py", line
62, in __getattr__
return _ffi_node_api.NodeGetAttr(self, name)
File
"/home/gakki/Desktop/shared/tvm/python/tvm/_ffi/_ctypes/packed_func.py", line
223, in __call__
values, tcodes, num_args = _make_tvm_args(args, temp_args)
File
"/home/gakki/Desktop/shared/tvm/python/tvm/_ffi/_ctypes/packed_func.py", line
119, in _make_tvm_args
values[i].v_handle = arg.handle
File "/home/gakki/Desktop/shared/tvm/python/tvm/runtime/object.py", line
62, in __getattr__
return _ffi_node_api.NodeGetAttr(self, name)
File
"/home/gakki/Desktop/shared/tvm/python/tvm/_ffi/_ctypes/packed_func.py", line
223, in __call__
values, tcodes, num_args = _make_tvm_args(args, temp_args)
File
"/home/gakki/Desktop/shared/tvm/python/tvm/_ffi/_ctypes/packed_func.py", line
119, in _make_tvm_args
values[i].v_handle = arg.handle
File "/home/gakki/Desktop/shared/tvm/python/tvm/runtime/object.py", line
62, in __getattr__
return _ffi_node_api.NodeGetAttr(self, name)
File
"/home/gakki/Desktop/shared/tvm/python/tvm/_ffi/_ctypes/packed_func.py", line
223, in __call__
values, tcodes, num_args = _make_tvm_args(args, temp_args)
File
"/home/gakki/Desktop/shared/tvm/python/tvm/_ffi/_ctypes/packed_func.py", line
119, in _make_tvm_args
values[i].v_handle = arg.handle
File "/home/gakki/Desktop/shared/tvm/python/tvm/runtime/object.py", line
62, in __getattr__
return _ffi_node_api.NodeGetAttr(self, name)
File
"/home/gakki/Desktop/shared/tvm/python/tvm/_ffi/_ctypes/packed_func.py", line
223, in __call__
values, tcodes, num_args = _make_tvm_args(args, temp_args)
File
"/home/gakki/Desktop/shared/tvm/python/tvm/_ffi/_ctypes/packed_func.py", line
119, in _make_tvm_args
values[i].v_handle = arg.handle
File "/home/gakki/Desktop/shared/tvm/python/tvm/runtime/object.py", line
62, in __getattr__
return _ffi_node_api.NodeGetAttr(self, name)
File
"/home/gakki/Desktop/shared/tvm/python/tvm/_ffi/_ctypes/packed_func.py", line
223, in __call__
values, tcodes, num_args = _make_tvm_args(args, temp_args)
File
"/home/gakki/Desktop/shared/tvm/python/tvm/_ffi/_ctypes/packed_func.py", line
119, in _make_tvm_args
values[i].v_handle = arg.handle
File "/home/gakki/Desktop/shared/tvm/python/tvm/runtime/object.py", line
62, in __getattr__
return _ffi_node_api.NodeGetAttr(self, name)
RecursionError: maximum recursion depth exceeded while calling a Python
object
```
From the message, it seems that TVM falls into a infinite recursion between
calling `_ffi_node_api.NodeGetAttr` and `_make_tvm_args(args, temp_args)`.
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