[PATCH] D47108: Add -fforce-emit-vtables

[Krzysztof Pszeniczny via Phabricator via cfe-commits]

amharc added a comment.

I think that `MarkVTableUsed` should be called somewhere in Sema (possibly `ActOnFinishCXXMemberDecls`?) if `ForceEmitVTables` is on. This probably requires making `ForceEmitVTables` a `LangOption` in addition to it being a `CodeGenOption`.

This causes the above example to compile correctly. Moreover, I have checked that 7zip and Bullet (the llvm test suite benchmarks which failed previously) build and execute correctly with the above change.


Repository:
  rL LLVM

https://reviews.llvm.org/D47108