Is synchronization missed for RAW dependent ops during thread distribution inside iree?

[chongxing]

@cbate

There are other options then. You could directly produce the correct Ir at the block tile level, but it would be a custom rewrite and not really fit in with the rest of the tile-and-fuse sequence. Other options would be to change tiling in some manner or add a custom operation tiled op representing the img2col view. It would be cool if we could get the linalg_ext tiling interface in upstream (just asked about this in another thread today as well). @ThomasRaoux or @nicolasvasilache do you know if/when that could happen?

With regarding to img2col view, it’s “subview” is not hyper-rectangular, will this be one more issue?

[update] I have found this related rfc RFC for `TilingInterface` for tiling operations that dont fit into Linalg Structured Operation definition, this looks not an issue.