[PATCH] D71261: [ThinLTO] upgrade IR symtab in parallel ahead of time

[Steven Wu via Phabricator via llvm-commits]

steven_wu added a comment.

This sounds like a good idea. Have you thought about just write out upgraded bitcode file on disk (since you named it a "SymTabCache"), maybe into thinLTO cache? This will speed up the incremental build as well. I think most of the upgrade path are coming from linking a bitcode static library, which is probably not changing during incremental build so we just need to upgrade once.


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https://reviews.llvm.org/D71261