| commit | 3049ac44e638c1af5177dc923f5f0675e9213d2a | [log] [tgz] |
|---|---|---|
| author | Lei Zhang <antiagainst@gmail.com> | Sun Oct 15 19:37:54 2023 -0400 |
| committer | GitHub <noreply@github.com> | Sun Oct 15 16:37:54 2023 -0700 |
| tree | 8a9e0f2e371347fe64c9c2374ce6cc9a8a8785be | |
| parent | fd4f96290ac99bf8b9284d3b32743cac0bb135ea [diff] |
[mlir][vector] Enable transfer op hoisting with dynamic indices (#68500) Recent changes (https://github.com/llvm/llvm-project/pull/66930) disabled vector transfer ops hoisting with view-like intermediate ops. The recommended way is to fold subview ops into transfer op indices before invoking hoisting. That would mean now we see transfer op indices involving dynamic values, instead of static constant values before with subview ops. Therefore hoisting won't kick in anymore. This breaks downstream users. To fix it, this commit enables hoisting transfer ops with dynamic indices by using `ValueBoundsConstraintSet` to prove ranges are disjoint in `isDisjointTransferIndices`. Given that utility is used in many places including op folders, right now we introduce a flag to it and only set as true for "heavy" transforms in hoisting and load-store forwarding.
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