[Bug fortran/26373] Printing members of parent type from an instance of an extended type

["nils-christian.kempke at intel dot com" <sourceware-bugzilla@sourceware.org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=26373

Kempke, Nils-Christian <nils-christian.kempke at intel dot com> changed:

           What    |Removed                     |Added
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                 CC|                            |nils-christian.kempke@intel
                   |                            |.com

--- Comment #2 from Kempke, Nils-Christian <nils-christian.kempke at intel dot com> ---
This is a duplicate of the already cited issue
https://sourceware.org/bugzilla/show_bug.cgi?id=22497

Similar to my comment there, also here the problem is that gfortran is not
emitting any inheritance information in its DWARF.

Using ifx/ifort and the latest gdb I can do the following:

=================================================================
Breakpoint 1, my_program () at ./f.f90:43
43      call child % increment
(gdb) p child%a
$1 = 1
(gdb) p child%b
$2 = 2
(gdb) p child%c
$3 = 3
(gdb) p child
$4 = ( test = ( a = 1, b = 2 ), c = 3 )
(gdb) p child%test
$5 = ( a = 1, b = 2 )
(gdb) p child%test%a
$6 = 1
(gdb) p child%test%b
$7 = 2
(gdb)
=================================================================

On GDB side this issue was fixed (as pointed out in the other issue). The
problem lies in gfortrans DWARF here.

With fortran and the missing DWARF inheritance info I can now do

=================================================================
Breakpoint 1, my_program () at ./f.f90:43
43      call child % increment
(gdb) p child
$1 = ( test = ( a = 1, b = 2 ), c = 3 )
(gdb) p child%test
$2 = ( a = 1, b = 2 )
(gdb) p child%test%a
$4 = 1
(gdb) p child%a
There is no member named a.
(gdb)
=================================================================

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