+static int is_modify_flags(ir_node *node) {
+ int i, arity;
+
+ if(arch_irn_is(arch_env, node, modify_flags))
+ return 1;
+ if(!be_is_Keep(node))
+ return 0;
+
+ arity = get_irn_arity(node);
+ for(i = 0; i < arity; ++i) {
+ ir_node *in = get_irn_n(node, i);
+ in = skip_Proj(in);
+ if(arch_irn_is(arch_env, in, modify_flags))
+ return 1;
+ }
+
+ return 0;
+}
+