[llvm] [VectorCombine] Add a cost model for shuffleToIdentity. (PR #93937)

Ramkumar Ramachandra via llvm-commits llvm-commits at lists.llvm.org
Wed Jun 5 03:55:30 PDT 2024


artagnon wrote:

> I am hoping this won't be needed, as the regression from #92794 has been fixed in the backend.

Let us know if this is still needed. It adds complexity, and if it's unnecessary, it can be dropped.

https://github.com/llvm/llvm-project/pull/93937


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