[PATCH] D88087: [SCEV] Limited support for unsigned preds in isImpliedViaOperations
Philip Reames via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Fri Oct 2 08:21:47 PDT 2020
reames added a comment.
In D88087#2308077 <https://reviews.llvm.org/D88087#2308077>, @xbolva00 wrote:
> https://llvm-compile-time-tracker.com/compare.php?from=f29645e7afdbb8d1fc2dd603c0b128bac055625c&to=b8ac19cf1cca5faec8b4404bb0f666cb63c9e1de&stat=instructions
>
> Compile time regressed a bit but I see no binary changes so.. how useful is this in practise? Any benchmark data to justify small regression?
I'll assert this is justified. Only being able to handle signed predicates when we canonicalize to unsigned is a bit of a problem. :)
Can you be more specific about how much compile time regressed and on what?
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https://reviews.llvm.org/D88087/new/
https://reviews.llvm.org/D88087
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