https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92311
--- Comment #6 from Tobias Burnus <burnus at gcc dot gnu.org> --- (In reply to Nichols A. Romero from comment #0) > For the OpenACC program, it may be that this is part of the OpenACC spec > that has not been implemented yet. [That's detach/attach] This OpenACC 2.6 feature is not yet available in GCC 9 or the development version (10.0); however, it is available in the vendor branch openacc-gcc-9 (via GCC's git repository) and there are plans to merge it in GCC 10, cf. https://gcc.gnu.org/ml/gcc-patches/2019-10/msg00444.html If all posted OpenACC patches get merged, expect a better/more complete OpenACC / OpenACC 2.6 support in GCC 10. (In reply to Jakub Jelinek from comment #1) > (In reply to Nichols A. Romero from comment #0) > > You don't need a map clause here, use_device_ptr clause is enough. > That is what OpenMP 5.0 says, but not what 4.5 said, 4.5 required at least > one map clause, and GCC 9 implements in Fortran only OpenMP 4.0 and some > parts of OpenMP 4.5, not OpenMP 5.0. GCC 9 support leaving out the map clause for C/C++; GCC 10 adds support of more of OpenMP 5 (esp. for C/C++). However, OpenMP support in GCC's Fortran compiler is lagging behind. Given that GCC development stage 1 ends in two weeks, it is unlikely that GCC 10 will support leaving out 'map' in Fortran programs. Sorry.
