https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78239
Bug ID: 78239
Summary: ICE in char_len_param_value, at fortran/decl.c:926,
with -fimplicit-none
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: gerhard.steinmetz.fort...@t-online.de
Target Milestone: ---
Some valid cases flag an ICE with option -fimplicit-none.
Affects version 5, 6 and 7.
$ cat z1.f90
subroutine s(n)
character(n) :: c
c = 'c'
end
$ gfortran-7-20161106 -fimplicit-none z1.f90
f951: internal compiler error: Segmentation fault
0xc3a64f crash_signal
../../gcc/toplev.c:338
0x6790df char_len_param_value
../../gcc/fortran/decl.c:926
0x67b1a4 gfc_match_char_spec(gfc_typespec*)
../../gcc/fortran/decl.c:2847
0x680419 gfc_match_decl_type_spec(gfc_typespec*, int)
../../gcc/fortran/decl.c:3055
0x681746 gfc_match_data_decl()
../../gcc/fortran/decl.c:4819
0x6d7b89 match_word_omp_simd
../../gcc/fortran/parse.c:93
0x6daa9e match_word
../../gcc/fortran/parse.c:377
0x6daa9e decode_statement
../../gcc/fortran/parse.c:377
0x6dc8a4 next_free
../../gcc/fortran/parse.c:1149
0x6dc8a4 next_statement
../../gcc/fortran/parse.c:1382
0x6de63c parse_spec
../../gcc/fortran/parse.c:3551
0x6e05c3 parse_progunit
../../gcc/fortran/parse.c:5521
0x6e1e74 gfc_parse_file()
../../gcc/fortran/parse.c:6037
0x725822 gfc_be_parse_file
../../gcc/fortran/f95-lang.c:198
