https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117118
Bug ID: 117118 Summary: internal compiler error: Segmentation fault in c_lex_with_flags(tree_node**, unsigned int*, unsigned char*, int) Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: yihan4845 at gmail dot com Target Milestone: --- Compiler Explorer: https://godbolt.org/z/nT16x49sE The following program: ```cpp #pragma message "" = R"" ``` will trigger segmentation fault for gcc trunk. The stack dump: ``` 0x2867155 diagnostic_context::diagnostic_impl(rich_location*, diagnostic_metadata const*, diagnostic_option_id, char const*, __va_list_tag (*) [1], diagnostic_t) ???:0 0x287af35 internal_error(char const*, ...) ???:0 0x28fd642 _cpp_lex_direct ???:0 0x28ff4b0 _cpp_lex_token ???:0 0xdde522 c_lex_with_flags(tree_node**, unsigned int*, unsigned char*, int) ???:0 0xc9a0da c_parse_file() ???:0 0xdf1f69 c_common_parse_file() ???:0 Please submit a full bug report, with preprocessed source (by using -freport-bug). Please include the complete backtrace with any bug report. See <https://gcc.gnu.org/bugs/> for instructions. Compiler returned: 1 ```