tree c5cef14107144c1a9c35fd7b1d0208c39e5531b2
parent b08ea122abb45c0544eb4c4acc9270cffd71f217
author Benoit Jacob <jacob.benoit.1@gmail.com> 1731524832 -0500
committer GitHub <noreply@github.com> 1731524832 +0000
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Simplify GPUTileSwizzleUtils and avoid creating unit dims. (#19105)

In `getIntrinsicSwizzle`, we had a slightly roundabout way of
constructing the swizzle from the `SingleSubgroupLayout`. We started
from the `thread` dims, which we used unconditionally even if they had
the value 1, leading to unit dims; and then we inserted the `element`
dims *on the inside*, which required custom manipulation of the
`swizzle` field. Now we just start from the `element` dims and work our
way outwards from there, which means we can reuse the same helper that
used to be named `unroll` and that we rename here to `expand` in
preparation for https://github.com/iree-org/iree/pull/19102, and which
we also move to be a `static` helper since it's no longer used outside
of this file.

---------

Signed-off-by: Benoit Jacob <jacob.benoit.1@gmail.com>