[PATCH] D124351: [Clang] Implement Change scope of lambda trailing-return-type

Wed Feb 1 09:32:37 PST 2023

cor3ntin added a comment.

In D124351#4093840 <https://reviews.llvm.org/D124351#4093840>, @nikic wrote:

> FYI this causes a minor compile-time regression (around 0.35% on 7zip at `O0`): http://llvm-compile-time-tracker.com/compare.php?from=cd173cbd7cca69c29df42cd4b42e60433435c29b&to=d708a186b6a9b050d09558163dd353d9f738c82d&stat=instructions%3Au
>
> Just wanted to check whether that's expected.

It's certainly not great but not entirely unexpected as we are doing quite a bit more work, although it should only affect code that constructs a lot of distinct lambda. Maybe an issue to track that would be useful, there may be some improvements opportunities
Thanks a lot for letting me know

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https://reviews.llvm.org/D124351