[llvm] [RFC][LV] VPlan-based cost model (PR #67647)

[Kolya Panchenko via llvm-commits]

nikolaypanchenko wrote:

> Would you be able to share an IR example for the ZExt issue? It would be interesting to understand if it is similar to the AArch64 issue and in particular with Ext/other opcode combinations are involved.


Sure: https://gist.github.com/nikolaypanchenko/41279c3330d6744cec22eda571fe9a4d

https://github.com/llvm/llvm-project/pull/67647