[PATCH] D110613: [Taildup] Don't tail-duplicate loop header with multiple successors as its latches

Tue Nov 23 18:26:21 PST 2021

junparser added a comment.

In D110613#3147744 <https://reviews.llvm.org/D110613#3147744>, @lkail wrote:

> As reported in https://reviews.llvm.org/rGc93f93b2e3f28997f794265089fb8138dd5b5f13, we should implement a more general way to avoid adding quadratic edges in CFGs.

we may need loop form or dominate tree to check loop header and latch here. I'll revert this as well.

Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D110613/new/

https://reviews.llvm.org/D110613