[PATCH] D79507: [flang] Change DIE("unreachable") cases to use llvm_unreachable

[David Truby via Phabricator via llvm-commits]

DavidTruby added a comment.

> Anyway, why not modify DIE by appending llvm_unreachable after the call to Fortran::common::die?

This was originally the approach taken by Kiran from AMD in this patch: https://github.com/flang-compiler/f18/pull/1057
It was rejected pending the aforementioned discussion about doing things the way LLVM does them currently vs changing the LLVM policy.


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