[PATCH] D51664: [IR] Lazily number instructions for local dominance queries

[Sanjoy Das via Phabricator via llvm-commits]

sanjoy added a comment.

> If I get no results, at least 1% RSS is an upper bound on increased LTO memory usage. I'm happy to trade that for 40% shorter compile time of the slowest TUs in clang.

That I agree with.  :)

Though, as I said on the llvm-dev thread, we may be able to get the best of both worlds by using something like the waymarking algorithm.


https://reviews.llvm.org/D51664