[llvm-bugs] [Bug 37904] u'ab' and U'ab' considered errors

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=37904

Aaron Ballman <aaron at aaronballman.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |aaron at aaronballman.com
             Status|NEW                         |RESOLVED
         Resolution|---                         |WONTFIX

--- Comment #2 from Aaron Ballman <aaron at aaronballman.com> ---
FWIW, C++ is exploring explicitly rejecting these constructs
(http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2021/p2362r2.pdf) and I
expect WG14 to receive a similar proposal.

I think it's reasonable for our implementation-defined behavior here to be to
reject those constructs. In fact, we recently strengthened our handling of this
in https://reviews.llvm.org/D106215 to also apply to L'ab' in addition to u'ab'
and U'ab'.

Closing this as WONTFIX, but if you know of a reason we *should* be allowing
these constructs, please reopen with information about your use case.

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