[Bug fortran/99010] New: [11 Regression] ICE in gfc_dep_resolver, at fortran/dependency.c:2322

[gscfq--- via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99010

            Bug ID: 99010
           Summary: [11 Regression] ICE in gfc_dep_resolver, at
                    fortran/dependency.c:2322
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gs...@t-online.de
  Target Milestone: ---

This changed recently, between 20210131 and 20210207 :


$ cat z1.f90
program p
   integer :: x[*]
   x = this_image()
   if ( this_image() == 2 ) then
      x = x[1]
   end if
end


$ gfortran-11-20210131 -c z1.f90 -fcoarray=lib
$
$ gfortran-11-20210207 -c z1.f90 -fcoarray=lib
z1.f90:5:14:

    5 |       x = x[1]
      |              1
internal compiler error: in gfc_dep_resolver, at fortran/dependency.c:2322
0x72b427 gfc_dep_resolver(gfc_ref*, gfc_ref*, gfc_reverse*, bool)
        ../../gcc/fortran/dependency.c:2322
0x783aa8 conv_caf_send
        ../../gcc/fortran/trans-intrinsic.c:1952
0x78b3d5 gfc_conv_intrinsic_subroutine(gfc_code*)
        ../../gcc/fortran/trans-intrinsic.c:12442
0x739be2 trans_code
        ../../gcc/fortran/trans.c:1981
0x7a58d5 gfc_trans_if_1
        ../../gcc/fortran/trans-stmt.c:1475
0x7ad46a gfc_trans_if(gfc_code*)
        ../../gcc/fortran/trans-stmt.c:1507
0x739c87 trans_code
        ../../gcc/fortran/trans.c:2010
0x7602d4 gfc_generate_function_code(gfc_namespace*)
        ../../gcc/fortran/trans-decl.c:6880
0x6e6c26 translate_all_program_units
        ../../gcc/fortran/parse.c:6351
0x6e6c26 gfc_parse_file()
        ../../gcc/fortran/parse.c:6620
0x732e7f gfc_be_parse_file
        ../../gcc/fortran/f95-lang.c:212