Date: Mon, 18 Feb 2019 06:40:40 -0500 From: Charlie Li <ml+freebsd@vishwin.info> To: Dimitry Andric <dim@FreeBSD.org>, src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Cc: freebsd-toolchain@freebsd.org Subject: Re: 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... Message-ID: <e80319d3-1d52-6142-ef08-c58dfd27444e@vishwin.info> In-Reply-To: <201812111905.wBBJ5Yfu053488@repo.freebsd.org> References: <201812111905.wBBJ5Yfu053488@repo.freebsd.org>
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From: Charlie Li <ml+freebsd@vishwin.info>
To: Dimitry Andric <dim@FreeBSD.org>, src-committers@freebsd.org,
svn-src-all@freebsd.org, svn-src-head@freebsd.org
Cc: freebsd-toolchain@freebsd.org
Message-ID: <e80319d3-1d52-6142-ef08-c58dfd27444e@vishwin.info>
Subject: Re: 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...
References: <201812111905.wBBJ5Yfu053488@repo.freebsd.org>
In-Reply-To: <201812111905.wBBJ5Yfu053488@repo.freebsd.org>
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On 11/12/2018 14:05, Dimitry Andric wrote:
> head/contrib/libc++/include/type_traits
>=20
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
Upstream LLVM has already reverted this: https://reviews.llvm.org/D53670
world builds successfully after applying the upstream revert. Ports that
use the clang portion of devel/llvm80 when set in DEFAULT_VERSIONS, ie
gecko@, also build successfully.
--=20
Charlie Li
Can't think of a witty .sigline today=E2=80=A6
(This email address is for mailing list use; replace local-part with
vishwin for off-list communication if possible)
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