[PATCH] D89479: [SimplifyCFG] Be more conservative when speculating in loops. (WIP)

[Florian Hahn via Phabricator via llvm-commits]

fhahn added a comment.

In D89479#2332615 <https://reviews.llvm.org/D89479#2332615>, @lebedev.ri wrote:

> I like costmodel-driven fix more.

As mentioned above, that works, *if* we do not want to ever speculate CTLZ. It might be profitable outside loops, but yeah, that would be simpler.


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