https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105300
Bug ID: 105300 Summary: segfault from static_assert with user-defined string suffix argument Product: gcc Version: 11.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: Jack at Applin dot US Target Milestone: --- Created attachment 52824 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52824&action=edit preprocessed source to reproduce the error $ cat bad.ii void operator""_x(const char *, unsigned long); static_assert(false, "foo"_x); $ g++ bad.ii bad.ii:2:15: internal compiler error: Segmentation fault 2 | static_assert(false, "foo"_x); | ^~~~~ 0xb0c67e crash_signal ../../src/gcc/toplev.c:327 0x7fb38e75951f ??? ./signal/../sysdeps/unix/sysv/linux/x86_64/libc_sigaction.c:0 0x7dd197 finish_static_assert(tree_node*, tree_node*, unsigned int, bool, bool) ../../src/gcc/cp/semantics.c:10134 0x15089c8 cp_parser_static_assert ../../src/gcc/cp/parser.c:15464 0xf9ed91 cp_parser_declaration ../../src/gcc/cp/parser.c:14164 0x149bba3 cp_parser_toplevel_declaration ../../src/gcc/cp/parser.c:14193 0x149bba3 cp_parser_translation_unit ../../src/gcc/cp/parser.c:4942 0x149bba3 c_parse_file() ../../src/gcc/cp/parser.c:45326 0x1489a5e c_common_parse_file() ../../src/gcc/c-family/c-opts.c:1218 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See <file:///usr/share/doc/gcc-11/README.Bugs> for instructions. $ g++ --version g++ (Ubuntu 11.2.0-7ubuntu2) 11.2.0 Copyright (C) 2021 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.