https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115284
--- Comment #9 from ro at CeBiTec dot Uni-Bielefeld.DE <ro at CeBiTec dot
Uni-Bielefeld.DE> ---
> --- Comment #8 from ro at CeBiTec dot Uni-Bielefeld.DE <ro at CeBiTec dot
> Uni-Bielefeld.DE> ---
>> --- Comment #6 from Hans-Peter Nilsson <hp at gcc dot gnu.org> ---
[...]
>> versions.) BTW, it'd be nice to know it it reproduces for sparc-linux as
>> well.
>
> I happen to have a Linux/sparc64 LDom around: I'll give it a whirl.
The failure is even earlier here: in a sparc64-unknown-linux-gnu
bootstrap, building a libstdc++ .gch file in stage 2 breaks:
n file included from
/var/gcc/regression/master/6.8.9-gcc-gas-gld/build/sparc64-unknown-linux-gnu/libstdc++-v3/include/bits/stl_pair.h:60,
from
/var/gcc/regression/master/6.8.9-gcc-gas-gld/build/sparc64-unknown-linux-gnu/libstdc++-v3/include/bits/stl_algobase.h:64,
from
/var/gcc/regression/master/6.8.9-gcc-gas-gld/build/sparc64-unknown-linux-gnu/libstdc++-v3/include/algorithm:60,
from
/vol/gcc/src/hg/master/solaris/libstdc++-v3/include/precompiled/stdc++.h:51:
/var/gcc/regression/master/6.8.9-gcc-gas-gld/build/sparc64-unknown-linux-gnu/libstdc++-v3/include/type_traits:
In instantiation of 'struct std::integral_constant<bool, true>':
/var/gcc/regression/master/6.8.9-gcc-gas-gld/build/sparc64-unknown-linux-gnu/libstdc++-v3/include/type_traits:296:72:
required from here
296 | constexpr true_type __is_complete_or_unbounded(__type_identity<_Tp>)
| ^
/var/gcc/regression/master/6.8.9-gcc-gas-gld/build/sparc64-unknown-linux-gnu/libstdc++-v3/include/type_traits:92:17:
internal compiler error: tree check: expected tree that contains 'decl common'
structure, have 'function_decl' in tsubst_arg_types, at cp/pt.cc:15782
92 | constexpr operator value_type() const noexcept { return value; }
| ^~~~~~~~
0xfff8000100a2f087 __libc_start_call_main
../sysdeps/nptl/libc_start_call_main.h:58
0xfff8000100a2f1a3 __libc_start_main_impl
./csu/libc-start.c:360
