Arm backend: Delegate constant index select on U55 - #22605
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🔗 Helpful Links🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/22605
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Lower constant index_select operations to U55-supported ops. Contiguous indices such as [1, 2, 3] become one slice: [1:4]. Indices such as [1, 3, 1] become one-element slices followed by concatenation. This supports noncontiguous, reordered, and repeated indices. Preserve CPU fallback for runtime, empty, and symbolic cases. Authored with Codex. Change-Id: I1073680c7844925f905bd3d2de2b47fc3a0d62c1 Signed-off-by: Per Held <per.held@arm.com>
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Lower constant index_select operations to U55-supported ops.
Contiguous indices such as [1, 2, 3] become one slice: [1:4]. Indices such as [1, 3, 1] become one-element slices followed by concatenation. This supports noncontiguous, reordered, and repeated indices.
Preserve CPU fallback for runtime, empty, and symbolic cases.
Authored with Codex.
Change-Id: I1073680c7844925f905bd3d2de2b47fc3a0d62c1
cc @digantdesai @freddan80 @per @zingo @oscarandersson8218 @mansnils @Sebastian-Larsson @robell @rascani