diff options
Diffstat (limited to 'gcc/omp-general.c')
| -rw-r--r-- | gcc/omp-general.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/gcc/omp-general.c b/gcc/omp-general.c index f107f4c..49023f4 100644 --- a/gcc/omp-general.c +++ b/gcc/omp-general.c @@ -1776,6 +1776,19 @@ oacc_verify_routine_clauses (tree fndecl, tree *clauses, location_t loc, = lookup_attribute ("omp declare target", DECL_ATTRIBUTES (fndecl)); if (attr != NULL_TREE) { + /* Diagnose if "#pragma omp declare target" has also been applied. */ + if (TREE_VALUE (attr) == NULL_TREE) + { + /* See <https://gcc.gnu.org/PR93465>; the semantics of combining + OpenACC and OpenMP 'target' are not clear. */ + error_at (loc, + "cannot apply %<%s%> to %qD, which has also been" + " marked with an OpenMP 'declare target' directive", + routine_str, fndecl); + /* Incompatible. */ + return -1; + } + /* If a "#pragma acc routine" has already been applied, just verify this one for compatibility. */ /* Collect previous directive's clauses. */ |