https://llvm.org/bugs/show_bug.cgi?id=27538

Eric Fiselier <e...@efcs.ca> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |INVALID

--- Comment #3 from Eric Fiselier <e...@efcs.ca> ---
So the "std::is_trivally_*" traits require compiler support. libc++ tries it's
best to emulate the traits when the builtin's aren't available, but it's less
than perfect.

The provided reproducer works for *all* GCC versions with the builtin's (GCC >=
5.1) and only fails for older GCC versions (or older libc++ versions).
Unfortunately there isn't much I can do about that.

I'm closing this bug as "INVALID" since it works for ToT libc++ + new GCC.
Please reopen this if you disagree.

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