* stor-layout.c (layout_decl): Don't set DECL_SIZE_UNIT if already set.

From-SVN: r65899

gcc/ChangeLog

@@ -56,6 +56,8 @@
 
 2003-04-21  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>
 
+	* stor-layout.c (layout_decl): Don't set DECL_SIZE_UNIT if already set.
+
 	* expr.c (store_constructor): Set RTX_UNCHANGING_P if readonly_field_p
 	before clearing.
 

gcc/stor-layout.c

@@ -419,7 +419,7 @@ layout_decl (decl, known_align)
       DECL_SIZE (decl) = TYPE_SIZE (type);
       DECL_SIZE_UNIT (decl) = TYPE_SIZE_UNIT (type);
     }
-  else
+  else if (DECL_SIZE_UNIT (decl) == 0)
     DECL_SIZE_UNIT (decl)
       = convert (sizetype, size_binop (CEIL_DIV_EXPR, DECL_SIZE (decl),
 				       bitsize_unit_node));