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-rw-r--r--gcc/fortran/primary.c29
1 files changed, 29 insertions, 0 deletions
diff --git a/gcc/fortran/primary.c b/gcc/fortran/primary.c
index 2be27d7..f622996 100644
--- a/gcc/fortran/primary.c
+++ b/gcc/fortran/primary.c
@@ -2046,6 +2046,7 @@ gfc_match_rvalue (gfc_expr **result)
int i;
gfc_typespec *ts;
bool implicit_char;
+ gfc_ref *ref;
m = gfc_match_name (name);
if (m != MATCH_YES)
@@ -2143,6 +2144,34 @@ gfc_match_rvalue (gfc_expr **result)
e->symtree = symtree;
m = match_varspec (e, 0);
+
+ if (sym->ts.is_c_interop || sym->ts.is_iso_c)
+ break;
+
+ /* Variable array references to derived type parameters cause
+ all sorts of headaches in simplification. Make them variable
+ and scrub any module identity because they do not appear to
+ be referencable from the module. */
+ if (sym->value && sym->ts.type == BT_DERIVED && e->ref)
+ {
+ for (ref = e->ref; ref; ref = ref->next)
+ if (ref->type == REF_ARRAY)
+ break;
+
+ if (ref == NULL)
+ break;
+
+ ref = e->ref;
+ e->ref = NULL;
+ gfc_free_expr (e);
+ e = gfc_get_expr ();
+ e->expr_type = EXPR_VARIABLE;
+ e->symtree = symtree;
+ e->ref = ref;
+ sym->attr.use_assoc = 0;
+ sym->module = NULL;
+ }
+
break;
case FL_DERIVED: