https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93600
Bug ID: 93600 Summary: [10 Regression] ICE in gfc_match_assignment, at fortran/match.c:1366/1340 Product: gcc Version: 10.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: fortran Assignee: unassigned at gcc dot gnu.org Reporter: gs...@t-online.de Target Milestone: --- Changed between 20191215 and 20200105 : $ cat z1.f90 program p character(1), parameter :: c(0) = 'a' c%len = 'a' end $ gfortran-10-20191215 -c z1.f90 z1.f90:3:14: 3 | c%len = 'a' | 1 Error: Assignment to a constant expression at (1) $ gfortran-10-20200202 -c z1.f90 f951: internal compiler error: Segmentation fault 0xbac59f crash_signal ../../gcc/toplev.c:328 0x67c9f4 gfc_match_assignment() ../../gcc/fortran/match.c:1366 0x6a06e0 match_word ../../gcc/fortran/parse.c:65 0x6a06e0 decode_statement ../../gcc/fortran/parse.c:361 0x6a21da next_free ../../gcc/fortran/parse.c:1279 0x6a21da next_statement ../../gcc/fortran/parse.c:1511 0x6a382b parse_spec ../../gcc/fortran/parse.c:3922 0x6a65fc parse_progunit ../../gcc/fortran/parse.c:5851 0x6a7cd9 gfc_parse_file() ../../gcc/fortran/parse.c:6392 0x6f295f gfc_be_parse_file ../../gcc/fortran/f95-lang.c:210