[Bug fortran/103367] New: [11/12 Regression] ICE in gfc_conv_array_initializer, at fortran/trans-array.c:6377

[Bug fortran/103367] New: [11/12 Regression] ICE in gfc_conv_array_initializer, at fortran/trans-array.c:6377

[gscfq@t-online.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103367

            Bug ID: 103367
           Summary: [11/12 Regression] ICE in gfc_conv_array_initializer,
                    at fortran/trans-array.c:6377
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gscfq@t-online.de
  Target Milestone: ---

Changed between 20211003 and 20211010 :
(follow-up of pr102817)


$ cat z1.f90
program p
   type t
      integer :: a(1,2) = 3
   end type
   type(t), parameter :: x(1) = t(4)
   integer :: y(1,2) = (x(b)%a)
   print *, y
end


$ gfortran-12-20211121 -c z1.f90
z1.f90:6:26:

    6 |    integer :: y(1,2) = (x(b)%a)
      |                          1
Warning: Legacy Extension: REAL array index at (1)
z1.f90:1:9:

    1 | program p
      |         1
internal compiler error: in gfc_conv_array_initializer, at
fortran/trans-array.c:6377
0x865e1a gfc_conv_array_initializer(tree_node*, gfc_expr*)
        ../../gcc/fortran/trans-array.c:6377
0x893b60 gfc_conv_initializer(gfc_expr*, gfc_typespec*, tree_node*, bool, bool,
bool)
        ../../gcc/fortran/trans-expr.c:8375
0x874f2b gfc_get_symbol_decl(gfc_symbol*)
        ../../gcc/fortran/trans-decl.c:1941
0x87770f generate_local_decl
        ../../gcc/fortran/trans-decl.c:5848
0x833a42 do_traverse_symtree
        ../../gcc/fortran/symbol.c:4174
0x87884c generate_local_vars
        ../../gcc/fortran/trans-decl.c:6054
0x87884c gfc_generate_function_code(gfc_namespace*)
        ../../gcc/fortran/trans-decl.c:7579
0x7fbd3e translate_all_program_units
        ../../gcc/fortran/parse.c:6638
0x7fbd3e gfc_parse_file()
        ../../gcc/fortran/parse.c:6925
0x848a6f gfc_be_parse_file
        ../../gcc/fortran/f95-lang.c:216

[Bug fortran/103367] [11/12 Regression] ICE in gfc_conv_array_initializer, at fortran/trans-array.c:6377

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103367

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P4
   Target Milestone|---                         |11.3

[Bug fortran/103367] [11/12 Regression] ICE in gfc_conv_array_initializer, at fortran/trans-array.c:6377 since r12-4278-g74ccca380cde5e79

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103367

Martin Liška <marxin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1
            Summary|[11/12 Regression] ICE in   |[11/12 Regression] ICE in
                   |gfc_conv_array_initializer, |gfc_conv_array_initializer,
                   |at                          |at
                   |fortran/trans-array.c:6377  |fortran/trans-array.c:6377
                   |                            |since
                   |                            |r12-4278-g74ccca380cde5e79
                 CC|                            |anlauf at gcc dot gnu.org,
                   |                            |marxin at gcc dot gnu.org
   Last reconfirmed|                            |2021-11-23

--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Started with r12-4278-g74ccca380cde5e79.

[Bug fortran/103367] [10/11/12 Regression] ICE in gfc_conv_array_initializer, at fortran/trans-array.c:6377 since r12-4278-g74ccca380cde5e79

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103367

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|11.3                        |10.4

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
The patch was backported even to the GCC 10 branch.

[Bug fortran/103367] [10/11/12 Regression] ICE in gfc_conv_array_initializer, at fortran/trans-array.c:6377 since r12-4278-g74ccca380cde5e79

[anlauf at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103367

--- Comment #3 from anlauf at gcc dot gnu.org ---
The 'real' index 'b' is a red herring.  Replacing it e.g. by an undefined 'm'
generates the same backtrace.

Also replacing the bad code line by

  integer, parameter :: y(1,2) = (x(m)%a) ! ICE-on-invalid

reproduces the issue.

[Bug fortran/103367] [10/11/12/13 Regression] ICE in gfc_conv_array_initializer, at fortran/trans-array.c:6377 since r12-4278-g74ccca380cde5e79

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103367

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|10.4                        |10.5

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 10.4 is being released, retargeting bugs to GCC 10.5.

[Bug fortran/103367] [11/12/13/14 Regression] ICE in gfc_conv_array_initializer, at fortran/trans-array.c:6377 since r12-4278-g74ccca380cde5e79

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103367

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|10.5                        |11.5

--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
GCC 10 branch is being closed.