Fix struct with field of pointer to array of same struct.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@168981 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/go/gofrontend/types.cc b/gcc/go/gofrontend/types.cc
index 8bb2b72..dd0a861 100644 (file)
--- a/gcc/go/gofrontend/types.cc
+++ b/gcc/go/gofrontend/types.cc
@@ -3745,15 +3745,29 @@ Struct_type::fill_in_tree(Gogo* gogo, tree type)
 {
   tree field_trees = NULL_TREE;
   tree* pp = &field_trees;
+  bool has_pointer = false;
   for (Struct_field_list::const_iterator p = this->fields_->begin();
        p != this->fields_->end();
        ++p)
     {
       std::string name = Gogo::unpack_hidden_name(p->field_name());
       tree name_tree = get_identifier_with_length(name.data(), name.length());
-      tree field_type_tree = p->type()->get_tree(gogo);
-      if (field_type_tree == error_mark_node)
-       return error_mark_node;
+
+      // Don't follow pointers yet, so that we don't get confused by a
+      // pointer to an array of this struct type.
+      tree field_type_tree;
+      if (p->type()->points_to() != NULL)
+       {
+         field_type_tree = ptr_type_node;
+         has_pointer = true;
+       }
+      else
+       {
+         field_type_tree = p->type()->get_tree(gogo);
+         if (field_type_tree == error_mark_node)
+           return error_mark_node;
+       }
+
       tree field = build_decl(p->location(), FIELD_DECL, name_tree,
                              field_type_tree);
       DECL_CONTEXT(field) = type;
@@ -3765,6 +3779,18 @@ Struct_type::fill_in_tree(Gogo* gogo, tree type)
 
   layout_type(type);
 
+  if (has_pointer)
+    {
+      tree field = field_trees;
+      for (Struct_field_list::const_iterator p = this->fields_->begin();
+          p != this->fields_->end();
+          ++p, field = DECL_CHAIN(field))
+       {
+         if (p->type()->points_to() != NULL)
+           TREE_TYPE(field) = p->type()->get_tree(gogo);
+       }
+    }
+
   return type;
 }