https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104649
Bug ID: 104649 Summary: ICE in gfc_match_formal_arglist, at fortran/decl.cc:6733 Product: gcc Version: 12.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: fortran Assignee: unassigned at gcc dot gnu.org Reporter: gs...@t-online.de Target Milestone: --- Affects versions down to r6 : $ cat z1.f90 module m interface module subroutine s(x) real :: x end end interface end submodule(m) m2 contains module subroutine s(*) end end $ cat z2.f90 module m interface module subroutine s(*) end end interface end submodule(m) m2 contains module subroutine s(x) real :: x end end $ gfortran-12-20220220 -c z1.f90 f951: internal compiler error: Segmentation fault 0xcc909f crash_signal ../../gcc/toplev.cc:322 0x6d9f81 gfc_match_formal_arglist(gfc_symbol*, int, int, bool) ../../gcc/fortran/decl.cc:6733 0x6dfaaf gfc_match_subroutine() ../../gcc/fortran/decl.cc:7957 0x74bb57 decode_statement ../../gcc/fortran/parse.cc:384 0x74d54a next_free ../../gcc/fortran/parse.cc:1397 0x74d54a next_statement ../../gcc/fortran/parse.cc:1629 0x751f8c parse_contained ../../gcc/fortran/parse.cc:6039 0x752e17 parse_module ../../gcc/fortran/parse.cc:6466 0x753147 gfc_parse_file() ../../gcc/fortran/parse.cc:6773 0x7a0a5f gfc_be_parse_file ../../gcc/fortran/f95-lang.cc:216