Triton to linalg Pass error

[LAJIidea]

These problems occurred when I used the triton-to-linalg pass to convert nanoGPT's ttir to mlir:

1. The first one is that I found that tt.assert will cause some unsupported operations, such as arith.andi. The picture below is my error message.
   

2. Some unsupported operations may occur during tt.load, such as arith.cmpi or arith.divsi
   

[manbearian]

@nhat-nguyen

[nhat-nguyen]

@LAJIidea we have an issue tracking here: #16