long.chen eaa32d20a2 [mlir] fix affine-loop-fusion crash (#76351) ...

If `user` not lies in `Region` `findAncestorOpInRegion` will return
`nullptr`.

Fixes https://github.com/llvm/llvm-project/issues/76281.

2023-12-29 10:51:51 +08:00

61 KiB

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