[Op] Support break/continue-like operations in MLIR loops

Question

[Op] Support break/continue-like operations in MLIR loops

Closed this issue 2 years ago · 2 comments

I checked the MLIR dialects we used and could not find these break/continue-like operations. It seems it may break the SSA constraint, and MLIR does not support that in the dialects. See the discussion thread.

Answer 1 · 2022-06-17T18:55:11.000Z

Can just do nothing for break.
https://discourse.llvm.org/t/help-how-to-write-loops-with-two-induction-variables-and-non-constant-stepsize-for-each-of-them/1197/5

Answer 2 · 2022-07-12T21:14:32.000Z

Currently, we just raise an error and request users to rewrite the code if break/return operations are in a deep region.