[Bug fortran/122386] Wrong code with TRANSFER of subarray component references

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122386

--- Comment #3 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Harald Anlauf <anlauf@gcc.gnu.org>:

https://gcc.gnu.org/g:2febf3b968329aceeeea7805af98ed98a8c67e75

commit r16-4611-g2febf3b968329aceeeea7805af98ed98a8c67e75
Author: Harald Anlauf <anlauf@gmx.de>
Date:   Thu Oct 23 21:21:04 2025 +0200

    Fortran: fix TRANSFER of subarray component references [PR122386]

    Commit r16-518 introduced a change that fixed inquiry references of complex
    arrays as argument to the TRANSFER intrinsic by forcing a temporary.  The
    solution taken however turned out not to be generalizable to component
    references of nested derived-type arrays.  A better way is the revert that
    patch and force the generation of a temporary when the SOURCE expression is
    a not simply-contiguous array.

            PR fortran/122386

    gcc/fortran/ChangeLog:

            * dependency.cc (gfc_ref_needs_temporary_p): Revert r16-518.
            * trans-intrinsic.cc (gfc_conv_intrinsic_transfer): Force temporary
            for SOURCE not being a simply-contiguous array.

    gcc/testsuite/ChangeLog:

            * gfortran.dg/transfer_array_subref_2.f90: New test.