Fortran : ICE for division by zero in declaration PR95882
A length expression containing a divide by zero in a character
declaration will result in an ICE if the constant is anymore
complicated that a contant divided by a constant.
The cause was that char_len_param_value can return MATCH_YES
even if a divide by zero was seen. Prior to returning check
whether a divide by zero was seen and if so set it to MATCH_ERROR.
2020-08-27 Mark Eggleston <markeggleston@gcc.gnu.org>
gcc/fortran
PR fortran/95882
* decl.c (char_len_param_value): Check gfc_seen_div0 and
if it is set return MATCH_ERROR.
2020-08-27 Mark Eggleston <markeggleston@gcc.gnu.org>
gcc/testsuite/
PR fortran/95882
* gfortran.dg/pr95882_1.f90: New test.
* gfortran.dg/pr95882_2.f90: New test.
* gfortran.dg/pr95882_3.f90: New test.
* gfortran.dg/pr95882_4.f90: New test.
* gfortran.dg/pr95882_5.f90: New test.