aaron.ballman added a reviewer: erichkeane.
aaron.ballman added a comment.

In D147714#4249531 <https://reviews.llvm.org/D147714#4249531>, @xbolva00 wrote:

> Added location when emiting diagnostic about failed TCO in the backend.

Will the diagnostic behavior change based on optimization level? Will the 
diagnostic be emitted to the correct location if there's no debug info? Are 
there frontend tests for this diagnostic?

Higher-level question: are we sure there's enough evidence this will be used in 
practice to warrant adding it to Clang?


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D147714/new/

https://reviews.llvm.org/D147714

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