------- Comment #11 from aldot at gcc dot gnu dot org 2008-06-27 13:04 ------- should we
- add a bit so that used_flags:2 and set TREE_USED() = 2 in expand_assignment(), expand_expr_real_1, adjust setting tree addressable(decl)=!!TREE_USED(decl), set it in gimplify_modify_expr_rhs() for vars that are not init-self, expand_one_var() etc. or - warn on has_zero_uses() in something like ccp? -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18624
