OpenMP: Fix nested use_device_ptr
This patch fixes a bug in lower_omp_target, where for Fortran arrays,
the expanded sender assignment is wrongly using the variable in the
current ctx, instead of the one looked-up outside, which is causing
use_device_ptr/addr to fail to work when used inside an omp-parallel
(where the omp child_fn is split away from the original).
The fix is inside omp-low.cc, though because the omp_array_data langhook
is used only by Fortran, this is essentially Fortran-specific.
2022-04-05 Chung-Lin Tang <cltang@codesourcery.com>
gcc/ChangeLog:
* omp-low.cc (lower_omp_target): Use outer context looked-up 'var' as
argument to lang_hooks.decls.omp_array_data, instead of 'ovar' from
current clause.
libgomp/ChangeLog:
* testsuite/libgomp.fortran/use_device_ptr-4.f90: New testcase.