[PATCH] D147557: [SCEV] Improve AddRecs' range computation

Tue Apr 11 02:57:42 PDT 2023

nikic added a comment.

In D147557#4255027 <https://reviews.llvm.org/D147557#4255027>, @mkazantsev wrote:

> Nikita, what's overall impact of expensive range sharpening together with this patch? It's sad for me that it is switched off by default. I'll maybe need to investigate why exactly it's so expensive and fix it.

Here are the compile-time results for just flipping the flag to true: http://llvm-compile-time-tracker.com/compare.php?from=b8917ac62ad49a0ce6de026c086599fc5fa35566&to=f0c3b441b6b01bb09c28c8608c5904d1910cd6d1&stat=instructions:u

Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D147557/new/

https://reviews.llvm.org/D147557