[PATCH] D122249: [Clang] Add a compatibiliy warning for non-literals in constexpr.

[Corentin Jabot via Phabricator via cfe-commits]

cor3ntin added a comment.

I thing to support the template case, we would have to modify `TemplateDeclInstantiator::VisitVarDecl` - which seems the best way to have a diagnostic without running through the whole function AST twice.
However, there is currently no check of any sort there so it would be a bit novel and odd!

Thank you both for the review


Repository:
  rG LLVM Github Monorepo

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https://reviews.llvm.org/D122249