[PATCH] D109760: [GVN] Simple GVN hoist

[JunMa via Phabricator via llvm-commits]

junparser added a comment.

As for mcf, I guess it may casued by large register pressure due to hoist some expression from some huge successor.  So simple cost model is necessary.


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  https://reviews.llvm.org/D109760/new/

https://reviews.llvm.org/D109760