[PATCH] D136476: llvm-reduce: Add flag reduction pass

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added a comment.

In D136476#3875461 <https://reviews.llvm.org/D136476#3875461>, @regehr wrote:

> LGTM.
>
> we should do whatever reduces the amount of undefined behavior. so, for example, nsw is one that we definitely to eliminate because this makes code more defined and hence (in general) easier to understand.

My idea of simpler to understand is codegens to fewer instructions. Things that introduce undefined behavior are more likely to enable optimizations and different lowerings that reduce instructions emitted


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https://reviews.llvm.org/D136476