svn commit: r341825 - in head: . contrib/compiler-rt contrib/compiler-rt/include/sanitizer contrib/compiler-rt/include/xray contrib/compiler-rt/lib/BlocksRuntime contrib/compiler-rt/lib/asan contri...

[Charlie Li]

On 18/02/2019 06:49, Dimitry Andric wrote:
> On 18 Feb 2019, at 12:40, Charlie Li via freebsd-toolchain wrote:
>>
>> On 11/12/2018 14:05, Dimitry Andric wrote:
>>>  head/contrib/libc++/include/type_traits
>>>
>> The change to the above named file breaks building any C++ code
>> containing _Float16 with devel/llvm80-8.0.0.r2 (and probably later, but
>> not 8.0.0.r1 or any earlier LLVM) on head (but not
>> projects/clang800-import, obviously). Example error, from our own copy
>> of LLVM libunwind:
>>
>> --- libunwind.o ---
>> In file included from
>> /usr/src/contrib/llvm/projects/libunwind/src/libunwind.cpp:18:
>> In file included from
>> /usr/obj/usr/src/amd64.amd64/tmp/usr/include/c++/v1/new:91:
>> In file included from
>> /usr/obj/usr/src/amd64.amd64/tmp/usr/include/c++/v1/exception:83:
>> /usr/obj/usr/src/amd64.amd64/tmp/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 {};
>>                                                       ^
>> 1 error generated.
>> *** [libunwind.o] Error code 1
> 
> Hm, which target did you compile for?  I have run multiple universe
> builds, so I thought I had covered all possible targets.  Or are you
> building with gcc?
> 
Building head using xtoolchain-llvm80 on amd64, for amd64. Interestingly
didn't error when cross-building for aarch64.

The projects/clang800-import branch already has the bit in question
reverted, so is a moot point there.

-- 
Charlie Li
Can't think of a witty .sigline today…

(This email address is for mailing list use; replace local-part with
vishwin for off-list communication if possible)

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