another instance of wrong block in new_Proj

[r26164]

diff --git a/ir/ir/iropt.c b/ir/ir/iropt.c
index 2a4b6e1..94bd2d5 100644 (file)
--- a/ir/ir/iropt.c
+++ b/ir/ir/iropt.c
@@ -3567,14 +3567,16 @@ static ir_node *transform_node_Not(ir_node *n) {
        HANDLE_UNOP_PHI(tarval_not,a,c);
 
        /* check for a boolean Not */
-       if (mode == mode_b &&
-                       is_Proj(a) &&
-                       is_Cmp(get_Proj_pred(a))) {
-               /* We negate a Cmp. The Cmp has the negated result anyways! */
-               n = new_r_Proj(current_ir_graph, get_nodes_block(n), get_Proj_pred(a),
-                               mode_b, get_negated_pnc(get_Proj_proj(a), mode_b));
-               DBG_OPT_ALGSIM0(oldn, n, FS_OPT_NOT_CMP);
-               return n;
+       if (mode == mode_b && is_Proj(a)) {
+               ir_node *a_pred = get_Proj_pred(a);
+               if (is_Cmp(a_pred)) {
+                       ir_node *cmp_block = get_nodes_block(a_pred);
+                       /* We negate a Cmp. The Cmp has the negated result anyways! */
+                       n = new_r_Proj(current_ir_graph, cmp_block, get_Proj_pred(a),
+                                      mode_b, get_negated_pnc(get_Proj_proj(a), mode_b));
+                       DBG_OPT_ALGSIM0(oldn, n, FS_OPT_NOT_CMP);
+                       return n;
+               }
        }
        if  (is_Eor(a)) {
                ir_node *eor_b = get_Eor_right(a);