Bug#1127626: libxsimd-dev: clang errors on ppc64el

[Drew Parsons]

Package: libxsimd-dev
Version: 14.0.0-2
Severity: serious
Justification: debci
X-Debbugs-Cc: debian-powerpc at lists.debian.org
User: debian-powerpc at lists.debian.org
Usertags: ppc64el
Control: forwarded -1 https://github.com/xtensor-stack/xsimd/issues/1257
Control: affects -1 src:llvm-toolchain-21

xsimd 14.0.0 tests on ppc64el are passing with gcc 15 but failing with
clang 21.

If gcc is fine, is there a clang option we should apply,
or should it be consider a bug in clang?


2007s [  5%] Building CXX object CMakeFiles/test_xsimd.dir/test_api.cpp.o
2007s /usr/bin/clang++ -DXSIMD_ENABLE_XTL_COMPLEX=1  -Wunused-parameter -Wextra -Wreorder -Wshorten-64-to-32 -std=c++17 -g -fPIC -mcpu=native -mtune=native -O3 -DNDEBUG -MD -MT CMakeFiles/test_xsimd.dir/test_api.cpp.o -MF CMakeFiles/test_xsimd.dir/test_api.cpp.o.d -o CMakeFiles/test_xsimd.dir/test_api.cpp.o -c /tmp/autopkgtest-lxc.egz8qg2i/downtmp/build.Yvf/src/test/test_api.cpp
2010s In file included from /tmp/autopkgtest-lxc.egz8qg2i/downtmp/build.Yvf/src/test/test_api.cpp:12:
2010s In file included from /usr/include/xsimd/xsimd.hpp:63:
2010s In file included from /usr/include/xsimd/memory/xsimd_aligned_allocator.hpp:27:
2010s In file included from /usr/include/xsimd/memory/../config/xsimd_arch.hpp:19:
2010s In file included from /usr/include/xsimd/memory/../config/../types/xsimd_all_registers.hpp:51:
2010s /usr/include/xsimd/memory/../config/../types/xsimd_vsx_register.hpp:67:61: error: cannot use 'long' with '__vector bool'
2010s    67 |         XSIMD_DECLARE_SIMD_BOOL_VSX_REGISTER(unsigned long, long);
2010s       |                                                             ^
2010s /usr/include/xsimd/memory/../config/../types/xsimd_vsx_register.hpp:68:52: error: cannot use 'long' with '__vector bool'
2010s    68 |         XSIMD_DECLARE_SIMD_BOOL_VSX_REGISTER(long, long);
2010s       |                                                    ^
2010s /usr/include/xsimd/memory/../config/../types/xsimd_vsx_register.hpp:70:54: error: cannot use 'long' with '__vector bool'
2010s    70 |         XSIMD_DECLARE_SIMD_BOOL_VSX_REGISTER(double, long);
2010s       |                                                      ^
...
1987s In file included from /usr/include/xsimd/xsimd.hpp:77:
1987s In file included from /usr/include/xsimd/types/xsimd_batch.hpp:520:
1987s In file included from /usr/include/xsimd/types/../arch/xsimd_isa.hpp:136:
1987s /usr/include/xsimd/types/../arch/./xsimd_vsx.hpp:429:20: error: no matching function for call to 'vec_ld'
1987s   429 |             return vec_ld(0, reinterpret_cast<const typename batch<T, A>::register_type*>(mem));
...
1987s In file included from /usr/include/xsimd/types/../arch/xsimd_isa.hpp:136:
1987s /usr/include/xsimd/types/../arch/./xsimd_vsx.hpp:752:20: error: no matching function for call to 'vec_st'
1987s   752 |             return vec_st(self.data, 0, reinterpret_cast<typename batch<T, A>::register_type*>(mem));
...
1987s In file included from /usr/include/xsimd/types/../arch/xsimd_isa.hpp:136:
1987s /usr/include/xsimd/types/../arch/./xsimd_vsx.hpp:436:20: error: no matching function for call to 'vec_vsx_ld'
1987s   436 |             return vec_vsx_ld(0, (typename batch<T, A>::register_type const*)mem);
...
1987s In file included from /usr/include/xsimd/types/../arch/xsimd_isa.hpp:136:
1987s /usr/include/xsimd/types/../arch/./xsimd_vsx.hpp:335:24: error: call to 'vec_cmpeq' is ambiguous
1987s   335 |             auto res = vec_cmpeq(self.data, other.data);
...
1987s In file included from /usr/include/xsimd/types/../arch/xsimd_isa.hpp:136:
1987s /usr/include/xsimd/types/../arch/./xsimd_vsx.hpp:222:20: error: call to 'vec_splats' is ambiguous
1987s   222 |             return vec_splats(val);
...
1987s In file included from /usr/include/xsimd/types/../arch/xsimd_isa.hpp:136:
1987s /usr/include/xsimd/types/../arch/./xsimd_vsx.hpp:130:20: error: call to 'vec_and' is ambiguous
1987s   130 |             return vec_and(self.data, other.data);
...
1987s In file included from /usr/include/xsimd/types/../arch/xsimd_isa.hpp:136:
1987s /usr/include/xsimd/types/../arch/./xsimd_vsx.hpp:759:20: error: no matching function for call to 'vec_vsx_st'
1987s   759 |             return vec_vsx_st(self.data, 0, reinterpret_cast<typename batch<T, A>::register_type*>(mem));
...
1987s In file included from /usr/include/xsimd/types/../arch/xsimd_isa.hpp:136:
1987s /usr/include/xsimd/types/../arch/./xsimd_vsx.hpp:335:24: error: call to 'vec_cmpeq' is ambiguous
1987s   335 |             auto res = vec_cmpeq(self.data, other.data);
...
1988s 19 errors generated.



Reported upstream,
https://github.com/xtensor-stack/xsimd/issues/1257