tree 8a4e1f512acedb202c7177bd015b08a4ba8f9bb1
parent 85fe4ab8a3faa58317c247051df2195c89bed0fa
author David Green <david.green@arm.com> 1747417805 +0100
committer GitHub <noreply@github.com> 1747417805 +0100
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[AArch64] Reduce the cost of repeated sub-shuffle (#139331)

Given a larger-than-legal shuffle we will split into multiple sub-parts.
This adds a check to the computed costs of sub-shuffles so that repeated
sequences are not accounted for multiple times. This especially reduces
the cost of broadcasts/splats.