[PATCH] D158988: [LV] Choose the wider VF where they have same cost
David Sherwood via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Thu Aug 31 01:08:15 PDT 2023
david-arm added a comment.
Also, it's quite possible that the cost model for the loop you're interested in needs improving further. For example, what if you changed the cost of the `trunc` in the loop to zero - would that also solve your problem? I think @kmclaughlin's patch only changed the costs of the zext and sext instructions.
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https://reviews.llvm.org/D158988/new/
https://reviews.llvm.org/D158988
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