[Bug fortran/120483] [15 Regression] character(len=:), allocatable, save variable returns incorrect substring since r15-2131

[cvs-commit at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120483

--- Comment #10 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-15 branch has been updated by Andre Vehreschild
<ve...@gcc.gnu.org>:

https://gcc.gnu.org/g:1549bb90c10c5e3ef1c5f2080cdb58dbaee25291

commit r15-9831-g1549bb90c10c5e3ef1c5f2080cdb58dbaee25291
Author: Andre Vehreschild <ve...@gcc.gnu.org>
Date:   Mon Jun 2 10:41:48 2025 +0200

    Fortran: Fix missing substring ref for allocatable saved vars [PR120483]

            Compute a substring ref on an allocatable static character array
            using pointer arithmetic.  Using an array type corrupts type
            layouting and crashes omp generation.

            PR fortran/120483

    gcc/fortran/ChangeLog:

            * trans-expr.cc (gfc_conv_substring): Use pointer arithmetic on
            static allocatable char arrays.

    gcc/testsuite/ChangeLog:

            * gfortran.dg/save_8.f90: New test.

    (cherry picked from commit 5c9bdfd2748b8159856a37404ab7b34d977242ce)