------- Comment #3 from rguenth at gcc dot gnu dot org 2010-01-13 11:08 ------- Because at gimplification time we simplify *&g_13 == g_13 which is not folded by fold to g_13 == g_13 but the gimplifier doesn't re-fold parents of folded expressions. And we never fold that comparison again.
-- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42716
