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From: "hewillk at gmail dot com" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/99465] New: Segmentation fault when put lambda into requires clause Date: Mon, 08 Mar 2021 13:24:22 +0000 [thread overview] Message-ID: <bug-99465-4@http.gcc.gnu.org/bugzilla/> (raw) https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99465 Bug ID: 99465 Summary: Segmentation fault when put lambda into requires clause Product: gcc Version: 11.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: hewillk at gmail dot com Target Milestone: --- The following code will trigger the segmentation fault of gcc-trunk: template <auto = 0> auto g() requires ([] { return 0; } ()); int main() { g(); } godbolt: https://godbolt.org/z/4bsaPd error message: <source>: In substitution of 'template<auto <anonymous> > auto g() requires (<lambda>)() [with auto <anonymous> = 0]': <source>:4:16: required from here <source>:2:6: required by the constraints of 'template<auto <anonymous> > auto g() requires (<lambda>)()' Segmentation fault 2 | auto g() requires ([] { return 0; } ()); | ~~~~~~~~~~~~~~~~~~^~~ 0x1cee989 internal_error(char const*, ...) ???:0 0x7748f3 pp_cxx_parameter_mapping(cxx_pretty_printer*, tree_node*) ???:0 0x7de235 expr_to_string(tree_node*) ???:0 0x1d0a861 pp_format(pretty_printer*, text_info*) ???:0 0x1ced50a diagnostic_report_diagnostic(diagnostic_context*, diagnostic_info*) ???:0 0x1cee60d error_at(unsigned int, char const*, ...) ???:0 0x73c8ea constraints_satisfied_p(tree_node*, tree_node*) ???:0 0x9510c3 fn_type_unification(tree_node*, tree_node*, tree_node*, tree_node* const*, unsigned int, tree_node*, unification_kind_t, int, conversion**, bool, bool) ???:0 0x6db9c2 build_new_function_call(tree_node*, vec<tree_node*, va_gc, vl_embed>**, int) ???:0 0x97d1ec finish_call_expr(tree_node*, vec<tree_node*, va_gc, vl_embed>**, bool, bool, int) ???:0 0x8dd92d c_parse_file() ???:0 0xa5bd12 c_common_parse_file() ???:0 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.
next reply other threads:[~2021-03-08 13:24 UTC|newest] Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-03-08 13:24 hewillk at gmail dot com [this message] 2021-03-08 13:35 ` [Bug c++/99465] " hewillk at gmail dot com 2021-03-08 17:21 ` hewillk at gmail dot com 2021-03-10 16:12 ` hewillk at gmail dot com 2021-04-28 20:54 ` mpolacek at gcc dot gnu.org 2022-01-04 2:26 ` pinskia at gcc dot gnu.org
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