[Bug fortran/100196] New: [9/10/11/12 Regression] ICE in reduce_binary_ca, at fortran/arith.c:1364

[Bug fortran/100196] New: [9/10/11/12 Regression] ICE in reduce_binary_ca, at fortran/arith.c:1364

[gscfq@t-online.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100196

            Bug ID: 100196
           Summary: [9/10/11/12 Regression] ICE in reduce_binary_ca, at
                    fortran/arith.c:1364
           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: ---

Started with r8 (before 20180525) :


$ cat z1.f90
program p
   real, parameter :: a(0) = 0
   real :: b = 1 + [a]
end


$ cat z5.f90
program p
   real, parameter :: a(0) = 0
   real, parameter :: b(1) = 1 + [a]
end


$ gfortran-7 -c z5.f90
$
$ gfortran-7 -c z1.f90
z1.f90:3:12:

    real :: b = 1 + [a]
            1
Error: Incompatible ranks 0 and 1 in assignment at (1)


$ gfortran-11-20210418 -c z1.f90
f951: internal compiler error: Segmentation fault
0xc0b22f crash_signal
        ../../gcc/toplev.c:327
0x65083f reduce_binary_ca
        ../../gcc/fortran/arith.c:1364
0x6508d2 reduce_binary_ca
        ../../gcc/fortran/arith.c:1351
0x650b45 reduce_binary
        ../../gcc/fortran/arith.c:1434
0x650ddb eval_intrinsic
        ../../gcc/fortran/arith.c:1612
0x68cfba simplify_intrinsic_op
        ../../gcc/fortran/expr.c:1184
0x68cfba gfc_simplify_expr(gfc_expr*, int)
        ../../gcc/fortran/expr.c:2237
0x6f7589 resolve_operator
        ../../gcc/fortran/resolve.c:4431
0x6f3a6f gfc_resolve_expr(gfc_expr*)
        ../../gcc/fortran/resolve.c:7098
0x68c184 gfc_reduce_init_expr(gfc_expr*)
        ../../gcc/fortran/expr.c:3094
0x68f460 gfc_match_init_expr(gfc_expr**)
        ../../gcc/fortran/expr.c:3142
0x67aa44 variable_decl
        ../../gcc/fortran/decl.c:2892
0x67aa44 gfc_match_data_decl()
        ../../gcc/fortran/decl.c:6201
0x6de9c3 match_word
        ../../gcc/fortran/parse.c:65
0x6de9c3 decode_statement
        ../../gcc/fortran/parse.c:376
0x6e040c next_free
        ../../gcc/fortran/parse.c:1316
0x6e040c next_statement
        ../../gcc/fortran/parse.c:1548
0x6e1a7b parse_spec
        ../../gcc/fortran/parse.c:3967
0x6e484c parse_progunit
        ../../gcc/fortran/parse.c:5896
0x6e5f41 gfc_parse_file()
        ../../gcc/fortran/parse.c:6437

[Bug fortran/100196] [9/10/11/12 Regression] ICE in reduce_binary_ca, at fortran/arith.c:1364

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100196

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P4
   Target Milestone|---                         |9.4

[Bug fortran/100196] [9/10/11/12 Regression] ICE in reduce_binary_ca, at fortran/arith.c:1364

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100196

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |marxin at gcc dot gnu.org,
                   |                            |tkoenig at gcc dot gnu.org
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2021-04-22

--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Started with r8-7161-g5867bb9a60ed0ff7.

[Bug fortran/100196] [9/10/11/12 Regression] ICE in reduce_binary_ca, at fortran/arith.c:1364

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100196

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|9.4                         |9.5

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
GCC 9.4 is being released, retargeting bugs to GCC 9.5.

[Bug fortran/100196] [9/10/11/12 Regression] ICE in reduce_binary_ca, at fortran/arith.c:1364

[anlauf at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100196

anlauf at gcc dot gnu.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |anlauf at gcc dot gnu.org

--- Comment #3 from anlauf at gcc dot gnu.org ---
I do not see the ICE for current 12/11/10 but get:

pr100196-z1.f90:3:22:

    3 |   real, parameter :: b = 1 + [a]
      |                      1
Error: Incompatible ranks 0 and 1 in assignment at (1)

and

pr100196-z5.f90:3:25:

    3 |   real, parameter :: b(1) = 1 + [a]
      |                         1
Error: Different shape for array assignment at (1) on dimension 1 (1 and 0)

The issue is still present on 9-branch, though.

[Bug fortran/100196] [9/10/11/12 Regression] ICE in reduce_binary_ca, at fortran/arith.c:1364

[anlauf at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100196

anlauf at gcc dot gnu.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |WAITING

[Bug fortran/100196] [9 Regression] ICE in reduce_binary_ca, at fortran/arith.c:1364

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100196

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
   Target Milestone|9.5                         |10.0
             Status|WAITING                     |RESOLVED

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed in GCC 10.