[PATCH] D139858: [SCEVExpander] Increase "cheap" expansion budget for loop invariants, but not loop exit values

[Nikita Popov via Phabricator via llvm-commits]

nikic added a comment.

I'd be more comfortable with this if it adjusted just the unroll limit, where a higher cost is probably justifiable relative to the cost of everything else. This change affects a lot of transforms, and from the test diffs alone, some of them look non-profitable to me, e.g. most of the changes in llvm/test/Transforms/IndVarSimplify/post-inc-range.ll due to questionable LFTR transforms.


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https://reviews.llvm.org/D139858