diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 3ca65bb0d5e..9399d1ca10e 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2010-07-27  Jakub Jelinek  <jakub@redhat.com>
+
+	* dwarf2out.c (add_data_member_location_attribute): Use
+	add_AT_unsigned instead of add_AT_int if offset is non-negative.
+
 2010-07-27  Bernd Schmidt  <bernds@codesourcery.com>
 
 	* postreload.c (try_replace_in_use): New static function.
diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c
index 1ca53bb96c1..d6751ac1dc2 100644
--- a/gcc/dwarf2out.c
+++ b/gcc/dwarf2out.c
@@ -15915,7 +15915,10 @@ add_data_member_location_attribute (dw_die_ref die, tree decl)
       if (dwarf_version > 2)
 	{
 	  /* Don't need to output a location expression, just the constant. */
-	  add_AT_int (die, DW_AT_data_member_location, offset);
+	  if (offset < 0)
+	    add_AT_int (die, DW_AT_data_member_location, offset);
+	  else
+	    add_AT_unsigned (die, DW_AT_data_member_location, offset);
 	  return;
 	}
       else