gimplify.c (gimplify_init_ctor_preeval): Call maybe_with_size_expr on the element before gimplifying it...

* gimplify.c (gimplify_init_ctor_preeval): Call maybe_with_size_expr
	on the element before gimplifying it, instead of punting if it is of
	variable size.

From-SVN: r117288

gcc/ChangeLog

@@ -1,3 +1,9 @@
+2006-09-28  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gimplify.c (gimplify_init_ctor_preeval): Call maybe_with_size_expr
+	on the element before gimplifying it, instead of punting if it is of
+	variable size.
+
 2006-09-28  Zdenek Dvorak <dvorakz@suse.cz>
 
 	* doc/loop.texi: New file.

gcc/gimplify.c

@@ -2670,9 +2670,8 @@ gimplify_init_ctor_preeval (tree *expr_p, tree *pre_p, tree *post_p,
       return;
     }
 
-  /* We can't preevaluate if the type contains a placeholder.  */
-  if (type_contains_placeholder_p (TREE_TYPE (*expr_p)))
-    return;
+  /* If this is a variable sized type, we must remember the size.  */
+  maybe_with_size_expr (expr_p);
 
   /* Gimplify the constructor element to something appropriate for the rhs
      of a MODIFY_EXPR.  Given that we know the lhs is an aggregate, we know

gcc/testsuite/ChangeLog

@@ -1,3 +1,7 @@
+2006-09-28  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gnat.dg/self_aggregate_with_pointer.adb: New test.
+
 2006-09-27  Steven G. Kargl  <kargls@gcc.gnu.org>
 
 	PR fortran/28276

gcc/testsuite/gnat.dg/self_aggregate_with_pointer.adb

@@ -0,0 +1,26 @@
+-- { dg-do run }
+
+procedure self_aggregate_with_pointer is
+
+  type Arr is array (Natural range <>) of Integer;
+
+  type Rec (N : Natural) is record
+    A : Arr (1..N);
+  end record;
+
+  type Acc_Rec is access all Rec;
+
+  type SRec is record
+    A : Acc_Rec;
+    I1, I2, I3, I4, I5, I6, I7: Integer;
+  end record;
+
+  R : aliased Rec (1);
+  S : Srec := (A => R'Access, others => 0);
+
+begin
+  S := (A => S.A, others => 0);
+  if S.A /= R'Access then
+    raise Program_Error;
+  end if;
+end;