[PATCH] D58497: Clear the KnownModules cache if the preprocessor is going away

[Duncan P. N. Exon Smith via Phabricator via cfe-commits]

dexonsmith added a comment.
Herald added a subscriber: wuzish.

Is this still a problem?

I'd be interested to understand *why* the preprocessor is going away here.  Is the `CompilerInstance` being reused for two different compilations?  Is that what we should fix instead?


Repository:
  rC Clang

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D58497/new/

https://reviews.llvm.org/D58497