[PATCH] D106585: Fix clang debug info irgen of i128 enums

[David Blaikie via Phabricator via llvm-commits]

dblaikie added a comment.

In D106585#2902588 <https://reviews.llvm.org/D106585#2902588>, @dblaikie wrote:

> Preserving existing behavior sounds OK - maybe some comment about that it might be good to remove so the next person who looks at it knows there's something not-quite-fully-reasoned here (& the comment about GCC's representation choice still seems off - GCC does use the signedness of the enumerators, not only the enumeration).

@rnk - any thoughts on the comments? (the existing comment about GCC's emission seems incorrect to me (or subtly correct, but probably easy to misunderstand) - GCC does use different DWARF encodings for negative enumerators, depending on the enumerator) And seems like a comment about how this is maybe confusing/in need of some more touch-up might be handy for the next reader? (specifically that the current DWARF backend ignores the "isUnsigned" flag entirely, and relies on the signedness of the enumerator's underlying type instead - so maybe we could remove the isUnsigned flag?)


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