[PATCH] D134468: [Driver] Drop MSVC<2015 tweaking

[Reid Kleckner via Phabricator via cfe-commits]

rnk added a comment.

I don't see the MSVC build requirement as being related to the version of MSVC that clang-cl supports targeting. Those can be separate. That said, this might be the right time to sunset this compatibility logic.

If we do this, I'd like it to be a policy change. We should add a release note about dropping support for `-fmsc-version=N` for N<1900, and audit for other logic like this:
https://github.com/llvm/llvm-project/blob/main/clang/lib/Sema/SemaDeclCXX.cpp#L6390

Bonus points for a warning when the user passes `-fms-compatibility-version=18.*`.


Repository:
  rG LLVM Github Monorepo

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https://reviews.llvm.org/D134468