Tweak error message for mapped parameters.

2019-07-05  Andrew Stubbs  <ams@codesourcery.com>

	gcc/fortran/
	* openmp.c (resolve_omp_clauses): Add custom error messages for
	parameters in map clauses.

From-SVN: r273143

diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog
index a163a1d..14ec845 100644 (file)
--- a/gcc/fortran/ChangeLog
+++ b/gcc/fortran/ChangeLog
@@ -1,3 +1,8 @@
+2019-07-05  Andrew Stubbs  <ams@codesourcery.com>
+
+       * openmp.c (resolve_omp_clauses): Add custom error messages for
+       parameters in map clauses.
+
 2019-07-03  Martin Liska  <mliska@suse.cz>
 
        * check.c (gfc_check_c_funloc): Remove

diff --git a/gcc/fortran/openmp.c b/gcc/fortran/openmp.c
index 1c7bce6..44fcb9d 100644 (file)
--- a/gcc/fortran/openmp.c
+++ b/gcc/fortran/openmp.c
@@ -4208,8 +4208,21 @@ resolve_omp_clauses (gfc_code *code, gfc_omp_clauses *omp_clauses,
                  continue;
              }
          }
-       gfc_error ("Object %qs is not a variable at %L", n->sym->name,
-                  &n->where);
+       if (list == OMP_LIST_MAP
+           && n->sym->attr.flavor == FL_PARAMETER)
+         {
+           if (openacc)
+             gfc_error ("Object %qs is not a variable at %L; parameters"
+                        " cannot be and need not be copied", n->sym->name,
+                        &n->where);
+           else
+             gfc_error ("Object %qs is not a variable at %L; parameters"
+                        " cannot be and need not be mapped", n->sym->name,
+                        &n->where);
+         }
+       else
+         gfc_error ("Object %qs is not a variable at %L", n->sym->name,
+                    &n->where);
       }
 
   for (list = 0; list < OMP_LIST_NUM; list++)