llvm-project

5929c904 - [mlir][vector] Fix fold result for empty vector.mask with no results (#180345)

[mlir][vector] Fix fold result for empty vector.mask with no results (#180345) This PR fixes `foldEmptyMaskOp` to return `failure` when folding an empty vector.mask whose terminatorhas no operands. Previously this case returned success without producing any folded results, which violates the folding contract. Fixes #177825.