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

[JunMa via Phabricator via llvm-commits]

junparser added a comment.

In D110613#3095582 <https://reviews.llvm.org/D110613#3095582>, @lkail wrote:

> LGTM, let's land it first to unblock https://reviews.llvm.org/D106056. But one thing to notice, number of python's opcode is larger than 128. If this patch affects python's perf, I think we should seek another adequate default value.

Do we have any benchmark on python,  I think I can have a perf test with them before land this.


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

https://reviews.llvm.org/D110613