[Bug fortran/99549] New: Segfault when scalar argument of elemental function is both derived type with allocatable component and a function result

[Bug fortran/99549] New: Segfault when scalar argument of elemental function is both derived type with allocatable component and a function result

[here.is.a.gcc.bug at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99549

            Bug ID: 99549
           Summary: Segfault when scalar argument of elemental function is
                    both derived type with allocatable component and a
                    function result
           Product: gcc
           Version: 10.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: here.is.a.gcc.bug at gmail dot com
  Target Milestone: ---

Created attachment 50363
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=50363&action=edit
A self-contained fortran program which causes the bug.

An elemental function is called where one argument is an array and another
argument is a scalar.

If the scalar argument is both:
  - A derived type with an allocatable component
  - The result of a function call (an rvalue in c++ speak)

Then a segfault happens.

[Bug fortran/99549] Segfault when scalar argument of elemental function is both derived type with allocatable component and a function result

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99549

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2021-03-11
      Known to fail|                            |10.2.1, 7.5.0
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1
           Keywords|                            |wrong-code
      Known to work|                            |11.0

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed.

Program received signal SIGSEGV, Segmentation fault.
0x0000000000401097 in m::add_t (lhs=..., rhs=...) at t.f90:21
21        output%contents = lhs%contents+rhs%contents

it seems to work fine with GCC 11 though.

[Bug fortran/99549] Segfault when scalar argument of elemental function is both derived type with allocatable component and a function result

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99549

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |DUPLICATE
                 CC|                            |marxin at gcc dot gnu.org

--- Comment #2 from Martin Liška <marxin at gcc dot gnu.org> ---
Fixed with r11-3430-ge86a02f87d8a1148.
Dup.

*** This bug has been marked as a duplicate of bug 96495 ***