* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Access_Type>: Defer

	finalizing types when updating the pointers to the designated type.
	<all>: Finalize the deferred types even if we didn't defer processing
	of incomplete types in this invocation.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@171879 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ada/ChangeLog b/gcc/ada/ChangeLog
index 7d51728..e4928c4 100644 (file)
--- a/gcc/ada/ChangeLog
+++ b/gcc/ada/ChangeLog
@@ -1,3 +1,10 @@
+2011-04-02  Eric Botcazou  <ebotcazou@adacore.com>
+
+       * gcc-interface/decl.c (gnat_to_gnu_entity) <E_Access_Type>: Defer
+       finalizing types when updating the pointers to the designated type.
+       <all>: Finalize the deferred types even if we didn't defer processing
+       of incomplete types in this invocation.
+
 2011-04-01  Olivier Hainque  <hainque@adacore.com>
             Nicolas Setton  <setton@adacore.com>
             Eric Botcazou  <ebotcazou@adacore.com>
@@ -8,27 +15,23 @@
 2011-03-28  Kai Tietz  <ktietz@redhat.com>
 
        * gcc-interface/Makefile.in (SO_LIB): Handle multilib build for native
-       windows targets.
-       (EH_MECHANISM): Make sure we use gcc's exception mechanism for all
-       native windows target.
-       * system-mingw.ads (System): Change ZCX_By_Default default to
-       True.
+       Windows targets.
+       (EH_MECHANISM): Use GCC exception mechanism for native Windows targets.
+       * system-mingw.ads (System): Change ZCX_By_Default default to True.
 
-       * raise-gcc.c (PERSONALITY_FUNCTION): Add prototype to
-       prevent warning.
+       * raise-gcc.c (PERSONALITY_FUNCTION): Add prototype.
 
 2011-03-28  Tristan Gingold  <gingold@adacore.com>
 
        PR ada/44431
-       * gcc-interface/Make-lang.in (ada/b_gnat1.adb):  Replaces
-       ada/b_gnat1.c. Use ada output of gnatbind.
+       * gcc-interface/Make-lang.in (ada/b_gnat1.adb): Replace ada/b_gnat1.c.
+       Use ada output of gnatbind.
        (ada/b_gnatb.adb): Ditto.
        (ada/b_gnat1.o, ada/b_gnatb.o): New rules.
        (ada.mostlyclean, ada.stage1)
        (ada.stage2, ada.stage3, ada.stage4, ada.stageprofile)
        (ada.stagefeedback): Adjust.
-
-       * gcc-interface/Makefile.in (b_gnatl.adb): Replaces b_gnatl.c
+       * gcc-interface/Makefile.in (b_gnatl.adb): Replace b_gnatl.c.
        Use ada output of gnatbind.
        (b_gnatm.adb): Ditto.
        (b_gnatl.o, b_gnatm.o): New rules.

diff --git a/gcc/ada/gcc-interface/decl.c b/gcc/ada/gcc-interface/decl.c
index cea8d3d..1afa06c 100644 (file)
--- a/gcc/ada/gcc-interface/decl.c
+++ b/gcc/ada/gcc-interface/decl.c
@@ -3769,8 +3769,12 @@ gnat_to_gnu_entity (Entity_Id gnat_entity, tree gnu_expr, int definition)
               along the way.  update_pointer_to is expected to properly take
               care of those situations.  */
            if (defer_incomplete_level == 0 && !is_from_limited_with)
-             update_pointer_to (TYPE_MAIN_VARIANT (gnu_old_desig_type),
-                                gnat_to_gnu_type (gnat_desig_equiv));
+             {
+               defer_finalize_level++;
+               update_pointer_to (TYPE_MAIN_VARIANT (gnu_old_desig_type),
+                                  gnat_to_gnu_type (gnat_desig_equiv));
+               defer_finalize_level--;
+             }
            else
              {
                struct incomplete *p = XNEW (struct incomplete);
@@ -4968,49 +4972,50 @@ gnat_to_gnu_entity (Entity_Id gnat_entity, tree gnu_expr, int definition)
     }
 
   /* If we deferred processing of incomplete types, re-enable it.  If there
-     were no other disables and we have some to process, do so.  */
-  if (this_deferred && --defer_incomplete_level == 0)
+     were no other disables and we have deferred types to process, do so.  */
+  if (this_deferred
+      && --defer_incomplete_level == 0
+      && defer_incomplete_list)
     {
-      if (defer_incomplete_list)
-       {
-         struct incomplete *p, *next;
+      struct incomplete *p, *next;
 
-         /* We are back to level 0 for the deferring of incomplete types.
-            But processing these incomplete types below may itself require
-            deferring, so preserve what we have and restart from scratch.  */
-         p = defer_incomplete_list;
-         defer_incomplete_list = NULL;
+      /* We are back to level 0 for the deferring of incomplete types.
+        But processing these incomplete types below may itself require
+        deferring, so preserve what we have and restart from scratch.  */
+      p = defer_incomplete_list;
+      defer_incomplete_list = NULL;
 
-         /* For finalization, however, all types must be complete so we
-            cannot do the same because deferred incomplete types may end up
-            referencing each other.  Process them all recursively first.  */
-         defer_finalize_level++;
+      /* For finalization, however, all types must be complete so we
+        cannot do the same because deferred incomplete types may end up
+        referencing each other.  Process them all recursively first.  */
+      defer_finalize_level++;
 
-         for (; p; p = next)
-           {
-             next = p->next;
-
-             if (p->old_type)
-               update_pointer_to (TYPE_MAIN_VARIANT (p->old_type),
-                                  gnat_to_gnu_type (p->full_type));
-             free (p);
-           }
+      for (; p; p = next)
+       {
+         next = p->next;
 
-         defer_finalize_level--;
+         if (p->old_type)
+           update_pointer_to (TYPE_MAIN_VARIANT (p->old_type),
+                              gnat_to_gnu_type (p->full_type));
+         free (p);
        }
 
-      /* All the deferred incomplete types have been processed so we can
-        now proceed with the finalization of the deferred types.  */
-      if (defer_finalize_level == 0 && defer_finalize_list)
-       {
-         unsigned int i;
-         tree t;
+      defer_finalize_level--;
+    }
 
-         FOR_EACH_VEC_ELT (tree, defer_finalize_list, i, t)
-           rest_of_type_decl_compilation_no_defer (t);
+  /* If all the deferred incomplete types have been processed, we can proceed
+     with the finalization of the deferred types.  */
+  if (defer_incomplete_level == 0
+      && defer_finalize_level == 0
+      && defer_finalize_list)
+    {
+      unsigned int i;
+      tree t;
 
-         VEC_free (tree, heap, defer_finalize_list);
-       }
+      FOR_EACH_VEC_ELT (tree, defer_finalize_list, i, t)
+       rest_of_type_decl_compilation_no_defer (t);
+
+      VEC_free (tree, heap, defer_finalize_list);
     }
 
   /* If we are not defining this type, see if it's on one of the lists of