https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97991
G. Steinmetz <gs...@t-online.de> changed: What |Removed |Added ---------------------------------------------------------------------------- Target| |x86_64-pc-linux-gnu Keywords| |ice-on-invalid-code --- Comment #1 from G. Steinmetz <gs...@t-online.de> --- A special case, loosely related : $ cat z2.c #define foo _Pragma (" ") #pragma redefine_extname foo $ gcc-11-20201122 -c z2.c -Wall z2.c:2:2: internal compiler error: unspellable token PRAGMA_EOL 2 | #pragma redefine_extname foo | ^ 0x6c46ba c_cpp_diagnostic(cpp_reader*, cpp_diagnostic_level, cpp_warning_reason, rich_location*, char const*, __va_list_tag (*) [1]) ../../gcc/c-family/c-common.c:6414 0x1522c92 cpp_diagnostic ../../libcpp/errors.c:75 0x1522e16 cpp_error(cpp_reader*, cpp_diagnostic_level, char const*, ...) ../../libcpp/errors.c:89 0x152c22d cpp_spell_token(cpp_reader*, cpp_token const*, unsigned char*, bool) ../../libcpp/lex.c:3541 0x152dac7 cpp_token_as_text(cpp_reader*, cpp_token const*) ../../libcpp/lex.c:3557 0x6d6022 cb_def_pragma ../../gcc/c-family/c-lex.c:255 0x151f880 do_pragma ../../libcpp/directives.c:1539 0x15224fd destringize_and_run ../../libcpp/directives.c:1885 0x15226cc _cpp_do__Pragma ../../libcpp/directives.c:1963 0x1536eb6 builtin_macro ../../libcpp/macro.c:744 0x15344b2 enter_macro_context ../../libcpp/macro.c:1562 0x153624d cpp_get_token_1 ../../libcpp/macro.c:2925 0x6d757d c_lex_with_flags(tree_node**, unsigned int*, unsigned char*, int) ../../gcc/c-family/c-lex.c:470 0x664e4f c_lex_one_token ../../gcc/c/c-parser.c:279 0x668809 c_parser_peek_token(c_parser*) ../../gcc/c/c-parser.c:483 0x668809 pragma_lex(tree_node**, unsigned int*) ../../gcc/c/c-parser.c:12540 0x6e4313 handle_pragma_redefine_extname ../../gcc/c-family/c-pragma.c:499 0x66e6bf c_parser_pragma ../../gcc/c/c-parser.c:12524 0x6909f3 c_parser_external_declaration ../../gcc/c/c-parser.c:1758 0x691569 c_parser_translation_unit ../../gcc/c/c-parser.c:1650