make add_missing_keeps more robust in case of SwitchJumps

[r27791]

diff --git a/ir/be/beabihelper.c b/ir/be/beabihelper.c
index 0022c37..ce6f98a 100644 (file)
--- a/ir/be/beabihelper.c
+++ b/ir/be/beabihelper.c
@@ -400,13 +400,14 @@ static void add_missing_keep_walker(ir_node *node, void *data)
        rbitset_alloca(found_projs, n_outs);
        foreach_out_edge(node, edge) {
                ir_node *succ = get_edge_src_irn(edge);
+               ir_mode *mode = get_irn_mode(succ);
                int      pn;
 
                /* The node could be kept */
                if (is_End(succ) || is_Anchor(succ))
                        continue;
 
-               if (get_irn_mode(succ) == mode_M)
+               if (mode == mode_M || mode == mode_X)
                        continue;
 
                pn = get_Proj_proj(succ);