localopt: simple associativity optimisation

[libfirm] / ir / ir / ircons.c

diff --git a/ir/ir/ircons.c b/ir/ir/ircons.c
index 9394e98..9b86858 100644 (file)
--- a/ir/ir/ircons.c
+++ b/ir/ir/ircons.c
@@ -506,7 +506,6 @@ ir_node *new_rd_immBlock(dbg_info *dbgi, ir_graph *irg)
        res->attr.block.in_cg       = NULL;
        res->attr.block.cg_backedge = NULL;
        res->attr.block.extblk      = NULL;
-       res->attr.block.region      = NULL;
        res->attr.block.entity      = NULL;
 
        set_Block_block_visited(res, 0);
@@ -779,6 +778,7 @@ ir_node *new_r_Anchor(ir_graph *irg)
 {
        ir_node *in[anchor_last];
        ir_node *res;
+       size_t   i;
        memset(in, 0, sizeof(in));
        res = new_ir_node(NULL, irg, NULL, op_Anchor, mode_ANY, anchor_last, in);
        res->attr.anchor.irg.irg = irg;
@@ -787,6 +787,11 @@ ir_node *new_r_Anchor(ir_graph *irg)
         * get_Block_irg for anchor */
        res->in[0] = res;
 
+       /* we can't have NULL inputs so reference ourselfes for now */
+       for (i = 0; i < (size_t)anchor_last; ++i) {
+               set_irn_n(res, i, res);
+       }
+
        return res;
 }