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From: "pault at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/103312] [11/12/13/14/15 Regression] ICE in
 gfc_find_component since r9-1098-g3cf89a7b992d483e
Date: Sat, 18 May 2024 08:03:02 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D103312

--- Comment #7 from Paul Thomas <pault at gcc dot gnu.org> ---
Created attachment 58231
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D58231&action=3Dedit
Preliminary fix for this PR

I went back to the beginning on this problem, having realised that it is far
too early to resolve the compcall of a class argument in gfc_reduce_init_ex=
pr.
Hence the chunk in expr.cc. The second chunk is (possibly) a bit of a kludge
and, I would have thought, should be checked, at very least by checking that
the class extends an abstract type. I will come back to this - yard duty ca=
lls!

A reduced test case, without the module 'example' and no type extension also
failed and is now fixed. Also failing in this reduced testcase was:
    function func (this) result (string)
      class(bar) :: this
      character (:), allocatable :: string
      allocate (character(this%size()) :: string)
      string =3D repeat ("x", len (string))
    end function

Again, this is fixed.

Finally, the patch even regression tests OK :-)

Enough for now.

Paul=