[PATCH] D128470: llvm-reduce: reduce using opt passes

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added a comment.

In D128470#3701200 <https://reviews.llvm.org/D128470#3701200>, @regehr wrote:

> here's a proposal: if we decide to go forward with my patch instead of Arthur's, I'll do a bit of work to remove the passes one by one in order to help us make a more informed decision about which passes we should be running here.
>
> I'm not saying we should include every pass that reduces size, but rather that that data is a better starting point for this discussion than our intuition is.

I do think restricting this is more useful. Just running opt -O3 kills most failures I look at


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