https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99861
--- Comment #2 from Alexander Lelyakin <alexander.lelyakin at googlemail dot
com> ---
There is a shorter sequence:
/usr/local/bin/g++ -std=c++20 -fmodules-ts -x c++-system-header stdexcept
/usr/local/bin/g++ -std=c++20 -fmodules-ts -x c++-system-header future
/usr/local/bin/g++ -std=c++20 -fmodules-ts -x c++-system-header unordered_map
/usr/local/bin/g++ -std=c++20 -fmodules-ts -x c++-system-header algorithm
----
hash table checking failed: equal operator returns true for a pair of values
with a different hash value
In file included from /usr/local/include/c++/11.0.1/vector:66,
from /usr/local/include/c++/11.0.1/functional:62,
from
/usr/local/include/c++/11.0.1/pstl/glue_algorithm_defs.h:13,
from /usr/local/include/c++/11.0.1/algorithm:74:
/usr/local/include/c++/11.0.1/bits/stl_uninitialized.h: In static member
function ‘static _ForwardIterator
std::__uninitialized_copy<true>::__uninit_copy(_InputIterator, _InputIterator,
_ForwardIterator)’:
/usr/local/include/c++/11.0.1/bits/stl_uninitialized.h:110:23: internal
compiler error: in hashtab_chk_error, at hash-table.c:137
110 | { return std::copy(__first, __last, __result); }
| ^~~~
0x92db09 hashtab_chk_error()
../../gcc/gcc/hash-table.c:137
0xb3c135 hash_table<spec_hasher, false, xcallocator>::verify(spec_entry*
const&, unsigned int)
../../gcc/gcc/hash-table.h:1033
0xb3c6be hash_table<spec_hasher, false,
xcallocator>::find_slot_with_hash(spec_entry* const&, unsigned int,
insert_option)
../../gcc/gcc/hash-table.h:968
0xaf957b match_mergeable_specialization(bool, spec_entry*)
../../gcc/gcc/cp/pt.c:29908
0xa72a58 trees_in::key_mergeable(int, merge_kind, tree_node*, tree_node*,
tree_node*, tree_node*, bool)
../../gcc/gcc/cp/module.cc:10670
0xa76654 trees_in::decl_value()
../../gcc/gcc/cp/module.cc:7903
0xa6f4b7 trees_in::tree_node(bool)
../../gcc/gcc/cp/module.cc:9153
0xa75adb module_state::read_cluster(unsigned int)
../../gcc/gcc/cp/module.cc:14811
0xa75fdd module_state::load_section(unsigned int, binding_slot*)
../../gcc/gcc/cp/module.cc:18082
0xa7609f module_state::lazy_load(unsigned int, binding_slot*)
../../gcc/gcc/cp/module.cc:18740
0xa70320 trees_in::tree_node(bool)
../../gcc/gcc/cp/module.cc:9664
0xa757db module_state::read_cluster(unsigned int)
../../gcc/gcc/cp/module.cc:14717
0xa75fdd module_state::load_section(unsigned int, binding_slot*)
../../gcc/gcc/cp/module.cc:18082
0xa7609f module_state::lazy_load(unsigned int, binding_slot*)
../../gcc/gcc/cp/module.cc:18740
0xa70320 trees_in::tree_node(bool)
../../gcc/gcc/cp/module.cc:9664
0xa757db module_state::read_cluster(unsigned int)
../../gcc/gcc/cp/module.cc:14717
0xa75fdd module_state::load_section(unsigned int, binding_slot*)
../../gcc/gcc/cp/module.cc:18082
0xa7609f module_state::lazy_load(unsigned int, binding_slot*)
../../gcc/gcc/cp/module.cc:18740
0xa70320 trees_in::tree_node(bool)
../../gcc/gcc/cp/module.cc:9664
0xa757db module_state::read_cluster(unsigned int)
../../gcc/gcc/cp/module.cc:14717
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
----
g++ (GCC) 11.0.1 20210405 (experimental)
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