https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88143
Janne Blomqvist <jb at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2018-11-22 CC| |jb at gcc dot gnu.org Ever confirmed|0 |1 --- Comment #1 from Janne Blomqvist <jb at gcc dot gnu.org> --- Confirmed. This also occurs on x86_64-pc-linux-gnu with the latest trunk (9.0.0 20181122). Apparently libbacktrace doesn't work on homebrew, on the above mentioned target the backtrace is shown as: f951: internal compiler error: Segmentation fault 0xc91e4f crash_signal ../../trunk-git/gcc/toplev.c:326 0x69c38e resolve_variable ../../trunk-git/gcc/fortran/resolve.c:5413 0x69c38e gfc_resolve_expr(gfc_expr*) ../../trunk-git/gcc/fortran/resolve.c:6834 0x68739a gfc_match_varspec(gfc_expr*, int, bool, bool) ../../trunk-git/gcc/fortran/primary.c:2039 0x688d50 gfc_match_rvalue(gfc_expr**) ../../trunk-git/gcc/fortran/primary.c:3518 0x65dff6 match_primary ../../trunk-git/gcc/fortran/matchexp.c:157 0x65dff6 match_level_1 ../../trunk-git/gcc/fortran/matchexp.c:211 0x65dff6 match_mult_operand ../../trunk-git/gcc/fortran/matchexp.c:267 0x65e27a match_add_operand ../../trunk-git/gcc/fortran/matchexp.c:356 0x65e51a match_level_2 ../../trunk-git/gcc/fortran/matchexp.c:480 0x65e654 match_level_3 ../../trunk-git/gcc/fortran/matchexp.c:551 0x65e774 match_level_4 ../../trunk-git/gcc/fortran/matchexp.c:599 0x65e774 match_and_operand ../../trunk-git/gcc/fortran/matchexp.c:693 0x65e974 match_or_operand ../../trunk-git/gcc/fortran/matchexp.c:722 0x65ea74 match_equiv_operand ../../trunk-git/gcc/fortran/matchexp.c:765 0x65eb76 match_level_5 ../../trunk-git/gcc/fortran/matchexp.c:811 0x65de11 gfc_match_expr(gfc_expr**) ../../trunk-git/gcc/fortran/matchexp.c:870 0x6560ee gfc_match(char const*, ...) ../../trunk-git/gcc/fortran/match.c:1153 0x657ad9 gfc_match_assignment() ../../trunk-git/gcc/fortran/match.c:1352 0x67bac0 match_word ../../trunk-git/gcc/fortran/parse.c:65 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.