https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120337
Bug ID: 120337 Summary: internal compiler error: error reporting routines re-entered. tuple library since version 14.1 Product: gcc Version: 16.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: mario.rodriguezb1 at um dot es Target Milestone: --- ICE in: ``` #include <mutex> #include <functional> #include <iostream> #include <chrono> #include <thread> class A { private: int b {0}; std::mutex m; public: void inc() { b++; } }; int main() { A a; std::thread t1(std::bind(&A::inc,std::ref(a)), a); t1.join(); } ``` Stack dump ``` /opt/compiler-explorer/gcc-trunk-20250518/include/c++/16.0.0/tuple:992:2: required by the constraints of 'template<class ... _Elements> template<class ... _UTypes> requires __disambiguating_constraint<_UTypes ...>() && __constructible<_UTypes ...>() && __dangles<_UTypes ...>() std::tuple< <template-parameter-1-1> >::tuple(_UTypes&& ...)' Segmentation fault 990 | && (__constructible<_UTypes...>()) | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~ internal compiler error: error reporting routines re-entered. 0x2944b3e diagnostic_context::report_diagnostic(diagnostic_info*) ???:0 0x2944c55 diagnostic_context::diagnostic_impl(rich_location*, diagnostic_metadata const*, diagnostic_option_id, char const*, __va_list_tag (*) [1], diagnostic_t) ???:0 0x29629c6 internal_error(char const*, ...) ???:0 0xad8aaa fancy_abort(char const*, int, char const*) ???:0 0x294406b diagnostic_context::finish() ???:0 0x29443b7 diagnostic_context::action_after_output(diagnostic_t) ???:0 0x2944a27 diagnostic_context::report_diagnostic(diagnostic_info*) ???:0 0x2944c55 diagnostic_context::diagnostic_impl(rich_location*, diagnostic_metadata const*, diagnostic_option_id, char const*, __va_list_tag (*) [1], diagnostic_t) ???:0 0x29629c6 internal_error(char const*, ...) ???:0 0xe6b211 pp_c_specifier_qualifier_list(c_pretty_printer*, tree_node*) ???:0 0xe6b1f0 pp_c_specifier_qualifier_list(c_pretty_printer*, tree_node*) ???:0 0xe6b445 c_pretty_printer::type_id(tree_node*) ???:0 0xb95770 cxx_pretty_printer::type_id(tree_node*) ???:0 0xe6b211 pp_c_specifier_qualifier_list(c_pretty_printer*, tree_node*) ???:0 0xb9579a cxx_pretty_printer::type_id(tree_node*) ???:0 0xb958b2 cxx_pretty_printer::type_id(tree_node*) ???:0 0xb9779e pp_cxx_parameter_mapping(cxx_pretty_printer*, tree_node*) ???:0 0xbf588b expr_to_string(tree_node*) ???:0 0x2986373 pretty_printer::format(text_info&) ???:0 0x2944796 diagnostic_context::report_diagnostic(diagnostic_info*) ???:0 ``` To quickly reproduce: https://godbolt.org/z/vzEWKfY1b