jikechao opened a new issue, #14648:
URL: https://github.com/apache/tvm/issues/14648

   The test case will crash at the latest version of TVM. It throws the error:  
 <**The Relay type checker is unable to show the following types match:  
Tensor[(16, meta[tir.FloorDiv][0], 3, 3), float32]**> 
   ```
   import tvm
   from tvm import relay
   import numpy as np
   from tvm.relay import transform
   
   data = relay.var(
       "data", shape=(relay.Any(), relay.Any(), relay.Any(), relay.Any()), 
dtype="float32"
   )
   weigth = relay.const(np.full((16, 16, 3, 3), 0.25), dtype="float32")
   x = relay.nn.conv2d(data, weigth, kernel_size=(3, 3), channels=16, groups=2)
   mod = tvm.IRModule.from_expr(x)
   mod = transform.InferType()(mod)
   ```
   
   ### The crash message:
   ```
   The Relay type checker is unable to show the following types match:
     Tensor[(16, meta[tir.FloorDiv][0], 3, 3), float32]
   
     Tensor[(16, 16, 3, 3), float32]
   In particular:
     dimension 1 conflicts: T.Any() // 2 does not match 16.
   The Relay type checker is unable to show the following types match.
   In particular `Tensor[(16, 16, 3, 3), float32]` does not match `Tensor[(16, 
meta[tir.FloorDiv][0], 3, 3), float32]
   `
   Traceback (most recent call last):
     File "b.py", line 13, in <module>
       mod = transform.InferType()(mod)
     File "/workplace/software/tvm/tvm/python/tvm/ir/transform.py", line 160, 
in __call__
       return _ffi_transform_api.RunPass(self, mod)
     File "/workplace/software/tvm/tvm/python/tvm/_ffi/_ctypes/packed_func.py", 
line 237, in __call__
       raise get_last_ffi_error()
   tvm.error.DiagnosticError: Traceback (most recent call last):
     7: TVMFuncCall
     6: 
tvm::runtime::PackedFuncObj::Extractor<tvm::runtime::PackedFuncSubObj<tvm::runtime::TypedPackedFunc<tvm::IRModule
 (tvm::transform::Pass, 
tvm::IRModule)>::AssignTypedLambda<tvm::transform::$_6>(tvm::transform::$_6, 
std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> 
>)::{lambda(tvm::runtime::TVMArgs const&, tvm::runtime::TVMRetValue*)#1}> 
>::Call(tvm::runtime::PackedFuncObj const*, tvm::runtime::TVMArgs, 
tvm::runtime::TVMRetValue*)
     5: tvm::transform::Pass::operator()(tvm::IRModule) const
     4: tvm::transform::Pass::operator()(tvm::IRModule, 
tvm::transform::PassContext const&) const
     3: tvm::transform::ModulePassNode::operator()(tvm::IRModule, 
tvm::transform::PassContext const&) const
     2: 
tvm::runtime::PackedFuncObj::Extractor<tvm::runtime::PackedFuncSubObj<tvm::runtime::TypedPackedFunc<tvm::IRModule
 (tvm::IRModule, 
tvm::transform::PassContext)>::AssignTypedLambda<tvm::relay::transform::InferType()::$_2>(tvm::relay::transform::InferType()::$_2)::{lambda(tvm::runtime::TVMArgs
 const&, tvm::runtime::TVMRetValue*)#1}> >::Call(tvm::runtime::PackedFuncObj 
const*, tvm::runtime::TVMArgs, tvm::runtime::TVMRetValue*)
     1: tvm::DiagnosticContext::Render()
     0: _ZN3tvm7runtime6detail
     File "/workplace/software/tvm/tvm/src/ir/diagnostic.cc", line 131
   DiagnosticError: one or more error diagnostics were emitted, please check 
diagnostic render for output.
   ```
   
   @shengxinhu Could you take a look? 
   


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