[cfe-dev] [8.0.0 Release] rc2 has been tagged

Marshall Clow via cfe-dev cfe-dev at lists.llvm.org
Mon Feb 11 08:08:25 PST 2019


On Fri, Feb 8, 2019 at 9:53 AM Paweł Sikora via cfe-dev <
cfe-dev at lists.llvm.org> wrote:

> ----- Oryginalna wiadomość -----
> > Dear testers,
> >
> > 8.0.0-rc2 has been tagged from the release_80 branch at r353413.
>
> Hi,
>
> i've noticed a compile error with rc2 and libc++ (release_80 @svn). looks
> similar to https://bugs.llvm.org/show_bug.cgi?id=40559
>
>
> (...)/clang++ -fPIC -target x86_64-linux-gnu --sysroot=(...) -march=x86-64
> -fuse-ld=lld -D_LIBCPP_ENABLE_CXX17_REMOVED_AUTO_PTR
> -D_LIBCPP_ENABLE_CXX17_REMOVED_BINDERS -stdlib=libc++ -std=gnu++1z
> -flto=thin
> (...)
> In file included from
> (...)/sysroot-x86_64-linux-gnu/usr/include/c++/v1/string:500:
> In file included from
> (...)/sysroot-x86_64-linux-gnu/usr/include/c++/v1/string_view:176:
> In file included from
> (...)/sysroot-x86_64-linux-gnu/usr/include/c++/v1/__string:56:
> In file included from
> (...)/sysroot-x86_64-linux-gnu/usr/include/c++/v1/algorithm:640:
> In file included from
> (...)/sysroot-x86_64-linux-gnu/usr/include/c++/v1/initializer_list:47:
> In file included from
> (...)/sysroot-x86_64-linux-gnu/usr/include/c++/v1/cstddef:110:
>
> (...)/sysroot-x86_64-linux-gnu/usr/include/c++/v1/type_traits:740:56:
> error: _Float16 is not supported on this target
> template <>          struct __libcpp_is_floating_point<_Float16>    :
> public true_type {};
>

This is quite odd, because libc++ trunk has no mentions of `_Float16`, and
I see none here:

https://llvm.org/svn/llvm-project/libcxx/branches/release_80/include/type_traits


-- Marshall
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