https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95183
Bug ID: 95183 Summary: [11 Regression] ICE: Segmentation fault (in _cpp_lex_direct) Product: gcc Version: 11.0 Status: UNCONFIRMED Keywords: ice-on-invalid-code Severity: normal Priority: P3 Component: preprocessor Assignee: unassigned at gcc dot gnu.org Reporter: asolokha at gmx dot com Target Milestone: --- gcc-11.0.0-alpha20200517 snapshot (g:2b9a271b2d0ba340234a138b7f8289bd7dca2fc5) ICEs when compiling gcc/testsuite/gcc.dg/cpp/trad/funlike-3.c: % gcc-11.0.0 -c gcc/testsuite/gcc.dg/cpp/trad/funlike-3.c gcc/testsuite/gcc.dg/cpp/trad/funlike-3.c:8:8: error: unterminated argument list invoking macro "f" 8 | #if 2 f(/* { dg-error "-:unterminated" "unterminated macro in directive" } */ | ^ gcc/testsuite/gcc.dg/cpp/trad/funlike-3.c:8:7: error: missing binary operator before token "f" 8 | #if 2 f(/* { dg-error "-:unterminated" "unterminated macro in directive" } */ | ^ gcc/testsuite/gcc.dg/cpp/trad/funlike-3.c:12: error: unterminated argument list invoking macro "f" 12 | f( /* { dg-error "-:unterminated" "unterminated macro" } */ | gcc/testsuite/gcc.dg/cpp/trad/funlike-3.c:12:1: internal compiler error: Segmentation fault 12 | f( /* { dg-error "-:unterminated" "unterminated macro" } */ | ^ 0xd9b92f crash_signal /var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200517/work/gcc-11-20200517/gcc/toplev.c:328 0x18578d3 _cpp_lex_direct /var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200517/work/gcc-11-20200517/libcpp/lex.c:2733 0x18592e8 _cpp_lex_token /var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200517/work/gcc-11-20200517/libcpp/lex.c:2611 0x1860877 cpp_get_token_1 /var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200517/work/gcc-11-20200517/libcpp/macro.c:2808 0x8784d0 c_lex_with_flags(tree_node**, unsigned int*, unsigned char*, int) /var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200517/work/gcc-11-20200517/gcc/c-family/c-lex.c:458 0x7f7a3a c_lex_one_token /var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200517/work/gcc-11-20200517/gcc/c/c-parser.c:270 0x7f8ac0 c_parser_peek_2nd_token(c_parser*) /var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200517/work/gcc-11-20200517/gcc/c/c-parser.c:491 0x7f8ac0 c_parser_peek_2nd_token(c_parser*) /var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200517/work/gcc-11-20200517/gcc/c/c-parser.c:484 0x820b9c c_parser_declaration_or_fndef /var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200517/work/gcc-11-20200517/gcc/c/c-parser.c:1893 0x82a893 c_parser_external_declaration /var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200517/work/gcc-11-20200517/gcc/c/c-parser.c:1745 0x82b3a9 c_parser_translation_unit /var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200517/work/gcc-11-20200517/gcc/c/c-parser.c:1618 0x82b3a9 c_parse_file() /var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200517/work/gcc-11-20200517/gcc/c/c-parser.c:21746 0x8830fb c_common_parse_file() /var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200517/work/gcc-11-20200517/gcc/c-family/c-opts.c:1190 It's likely caused by g:2a0225e47868fbfceaecaa5e2de96c1c5a2251ea.