commit 7201c1c3fd8c69b5470072a86fe3ce5907baa8ff
author Thomas Raoux <thomasraoux@google.com> Thu Nov 18 16:09:49 2021 -0800
committer Copybara-Service <copybara-worker@google.com> Fri Nov 19 10:31:19 2021 -0800
tree 996daec29e95a00e254016f10c744a9449c869ce
parent a864454c5d55ff9550161809bfbb0d58cd1f63d4

[mlir][vector] Remove usage of shapecast to remove unit dim

Instead of using shape_cast op in the pattern removing leading unit
dimensions we use extract/broadcast ops. This is part of the effort to
restrict ShapeCastOp fuirther in the future and only allow them to
convert to or from 1D vector.

This also adds extra canonicalization to fill the gaps in simplifying
broadcast/extract ops.

Differential Revision: https://reviews.llvm.org/D114205

GitOrigin-RevId: 06dbb2856967a5497c6ddfad3d3fdfea20849f7e