------- Comment #7 from rguenth at gcc dot gnu dot org 2010-06-16 11:35 -------
Obvious patch, removing the premature (and bogus) optimization:
Index: c-common.c
===================================================================
--- c-common.c (revision 160826)
+++ c-common.c (working copy)
@@ -3825,23 +3825,7 @@ c_common_truthvalue_conversion (location
inner);
return truthvalue_true_node;
}
-
- /* If we still have a decl, it is possible for its address to
- be NULL, so we cannot optimize. */
- if (DECL_P (inner))
- {
- gcc_assert (DECL_WEAK (inner));
- break;
- }
-
- if (TREE_SIDE_EFFECTS (inner))
- {
- expr = build2 (COMPOUND_EXPR, truthvalue_type_node,
- inner, truthvalue_true_node);
- goto ret;
- }
- else
- return truthvalue_true_node;
+ break;
}
case COMPLEX_EXPR:
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44555
