[Bug fortran/83900] New: [8 Regression] ICE in gfc_simplify_matmul, at fortran/simplify.c:4593

[gscfq@t-online.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83900

            Bug ID: 83900
           Summary: [8 Regression] ICE in gfc_simplify_matmul, at
                    fortran/simplify.c:4593
           Product: gcc
           Version: 8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gscfq@t-online.de
  Target Milestone: ---

Changed between 20171022 and 20171029 :


$ cat z1.f90
program p
   integer, parameter :: a(3,2) = 1
   real, parameter :: b(2,3) = 2
   print *, matmul(a, b)
end


$ gfortran-8-20180114 -c z1.f90
f951: internal compiler error: in gfc_simplify_matmul, at
fortran/simplify.c:4593
0x72a6ae gfc_simplify_matmul(gfc_expr*, gfc_expr*)
        ../../gcc/fortran/simplify.c:4593
0x6b7d91 do_simplify
        ../../gcc/fortran/intrinsic.c:4402
0x6c225c gfc_intrinsic_func_interface(gfc_expr*, int)
        ../../gcc/fortran/intrinsic.c:4779
0x70b9a5 resolve_unknown_f
        ../../gcc/fortran/resolve.c:2865
0x70b9a5 resolve_function
        ../../gcc/fortran/resolve.c:3174
0x70baca gfc_resolve_expr(gfc_expr*)
        ../../gcc/fortran/resolve.c:6704
0x712272 gfc_resolve_code(gfc_code*, gfc_namespace*)
        ../../gcc/fortran/resolve.c:11059
0x711f47 gfc_resolve_blocks(gfc_code*, gfc_namespace*)
        ../../gcc/fortran/resolve.c:10105
0x71237b gfc_resolve_code(gfc_code*, gfc_namespace*)
        ../../gcc/fortran/resolve.c:11049
0x714d2a resolve_codes
        ../../gcc/fortran/resolve.c:16463
0x714e2e gfc_resolve(gfc_namespace*)
        ../../gcc/fortran/resolve.c:16498
0x6fe7aa resolve_all_program_units
        ../../gcc/fortran/parse.c:6042
0x6fe7aa gfc_parse_file()
        ../../gcc/fortran/parse.c:6292
0x744e5f gfc_be_parse_file
        ../../gcc/fortran/f95-lang.c:204