[PATCH] D71383: [LoopGuard] Instructions in loop preheader and loop exit must be safe to execute speculatively.

[Philip Reames via Phabricator via llvm-commits]

reames added a comment.

This doesn't make sense to me.  I don't see why we need the speculation restriction here.  The discussion mentions concern about side exits, but if so, that's a different property.  (i.e. isGuaranteedToTransferToSuccessor)

This also needs more background as to motivation.  Motivating use case?  Link to a review would be ideal.


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https://reviews.llvm.org/D71383