[GitHub] [tvm] syang-ng opened a new issue #9406: [Bug] Crash in tvm.build when constructing the tir.isnan expression manually by tir.Call

Sun, 31 Oct 2021 22:35:50 -0700 


syang-ng opened a new issue #9406:
URL: https://github.com/apache/tvm/issues/9406


   I try to construct the `tir.Call` expression manually, but after I execute 
the `tvm.build`, the program crashes.
   
   ### Expected behavior
   
   Execute `tvm.build()` successfully.
   
   ### Actual behavior
   
   The program will crash if we construct the `tir.isnan` manually.
   
   And another interesting thing is that GDB can not print the whole 
backtraces, just like  the image listed below:
   
![image](https://user-images.githubusercontent.com/25731241/139625588-2b89440f-0e65-48fa-8dd5-49d66bff8213.png)
   
   
   
   ### Environment
   
   Ubuntu18.04, cmake 3.18.2, llvm 12, tested on latest git 
[4087e72](https://github.com/apache/tvm/commit/4087e72b657eae484bb647cbd8ef86b9acf11748)
   ### Steps to reproduce
   
   Here is the script to reproduce the bug:
   
   ```python
   import tvm
   
   v = tvm.tir.Var('v', 'float32')
   value = tvm.tir.isnan(v)
   op = value.op
   
   buf = tvm.tir.buffer.decl_buffer((1,))
   value = tvm.tir.Call('int32', op, [0])
   s = tvm.tir.Store(buf.data, value, 0)
   f = tvm.tir.PrimFunc({buf.data}, s)
   
   tvm.build(f)
   ```
   


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