https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122543
--- Comment #1 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Tobias Burnus <[email protected]>: https://gcc.gnu.org/g:28d20a591ddf1618d75f2b8261ba85bf15a49876 commit r16-5008-g28d20a591ddf1618d75f2b8261ba85bf15a49876 Author: Tobias Burnus <[email protected]> Date: Mon Nov 3 18:30:07 2025 +0100 libgomp.fortran/omp_target_memset.f90 - Avoid implicit mapping by an uninit size [PR122543] In OpenMP, pointers are implicitly mapped - which means for Fortran that their pointer target is also mapped. However, for uninitialized memory, this means that some random pointee with some random amount of memory is copied - in the good case, size == 0, but if not, odd things can happen. Solution: Use 'fptr => null()' before the target mapping or - as done here - declare the pointer inside the region. libgomp/ChangeLog: PR libgomp/122543 * testsuite/libgomp.fortran/omp_target_memset.f90: Move fptr inside the target to avoid implicit mapping of its uninit pointee. * testsuite/libgomp.fortran/omp_target_memset-2.f90: Likewise.
