[PATCH] D147714: [Attr] Introduce [[clang::nonportable_musttail]] as less strict version of [[clang::musttail]]

[Eli Friedman via Phabricator via cfe-commits]

efriedma added a subscriber: nickdesaulniers.
efriedma added a comment.

Any thoughts on diagnostics here?  If I'm not mistaken, with this patch, if you request an impossible tail call, you get a crash with very little useful information.  (Although, see https://discourse.llvm.org/t/rfc-improving-clangs-middle-and-back-end-diagnostics/69261 )


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  https://reviews.llvm.org/D147714/new/

https://reviews.llvm.org/D147714