Use turn_back_am() to implement peephole_ia32_Imul_split().

[libfirm] / ir / be / becopyilp2.c

diff --git a/ir/be/becopyilp2.c b/ir/be/becopyilp2.c
index 3d3de0b..7208ae6 100644 (file)
--- a/ir/be/becopyilp2.c
+++ b/ir/be/becopyilp2.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 1995-2007 University of Karlsruhe.  All right reserved.
+ * Copyright (C) 1995-2008 University of Karlsruhe.  All right reserved.
  *
  * This file is part of libFirm.
  *
@@ -88,7 +88,7 @@ static void build_coloring_cstr(ilp_env_t *ienv) {
                        int cst_idx;
                        const arch_register_req_t *req;
                        int curr_node_color = get_irn_col(ienv->co, irn);
-                       int node_nr = (int)get_irn_node_nr(irn);
+                       int node_nr = (int)get_irn_idx(irn);
                        local_env_t *lenv = ienv->env;
 
                        pmap_insert(lenv->nr_2_irn, INT_TO_PTR(node_nr), irn);
@@ -162,7 +162,7 @@ static void build_interference_cstr(ilp_env_t *ienv) {
                                ir_node *irn = clique[i];
 
                                if (!sr_is_removed(ienv->sr, irn)) {
-                                       int var_idx = lpp_get_var_idx(lpp, name_cdd(buf, 'x', (int)get_irn_node_nr(irn), col));
+                                       int var_idx = lpp_get_var_idx(lpp, name_cdd(buf, 'x', (int)get_irn_idx(irn), col));
                                        lpp_set_factor_fast(lpp, cst_idx, var_idx, 1);
                                }
                        }
@@ -189,12 +189,12 @@ static void build_affinity_cstr(ilp_env_t *ienv) {
                int root_col, arg_col;
 
                root = curr->nodes[0];
-               root_nr = (int) get_irn_node_nr(root);
+               root_nr = (int) get_irn_idx(root);
                root_col = get_irn_col(ienv->co, root);
 
                for (i = 1; i < curr->node_count; ++i) {
                        arg = curr->nodes[i];
-                       arg_nr = (int) get_irn_node_nr(arg);
+                       arg_nr = (int) get_irn_idx(arg);
                        arg_col = get_irn_col(ienv->co, arg);
 
                        /* add a new affinity variable */
@@ -291,19 +291,24 @@ static void build_clique_star_cstr(ilp_env_t *ienv) {
        co_gs_foreach_aff_node(ienv->co, aff) {
                struct obstack ob;
                neighb_t *nbr;
-               ir_node *center = aff->irn;
+               const ir_node *center = aff->irn;
                ir_node **nodes;
                set *edges;
                int i, o, n_nodes, n_edges;
 
+               if (arch_irn_is(ienv->co->aenv, aff->irn, ignore))
+                       continue;
+
                obstack_init(&ob);
                edges = new_set(compare_edge_t, 8);
 
                /* get all affinity neighbours */
                n_nodes = 0;
                co_gs_foreach_neighb(aff, nbr) {
-                       obstack_ptr_grow(&ob, nbr->irn);
-                       ++n_nodes;
+                       if (!arch_irn_is(ienv->co->aenv, nbr->irn, ignore)) {
+                               obstack_ptr_grow(&ob, nbr->irn);
+                               ++n_nodes;
+                       }
                }
                nodes = obstack_finish(&ob);
 
@@ -375,10 +380,10 @@ static void build_clique_star_cstr(ilp_env_t *ienv) {
                                char buf[16];
 
                                cst_idx = lpp_add_cst(ienv->lp, NULL, lpp_greater, pset_count(clique)-1);
-                               center_nr = get_irn_node_nr(center);
+                               center_nr = get_irn_idx(center);
 
                                pset_foreach(clique, member) {
-                                       member_nr = get_irn_node_nr(member);
+                                       member_nr = get_irn_idx(member);
                                        var_idx = lpp_get_var_idx(ienv->lp, name_cdd_sorted(buf, 'y', center_nr, member_nr));
                                        lpp_set_factor_fast(ienv->lp, cst_idx, var_idx, 1.0);
                                }
@@ -393,7 +398,7 @@ static void build_clique_star_cstr(ilp_env_t *ienv) {
 }
 
 
-static void extend_path(ilp_env_t *ienv, pdeq *path, ir_node *irn) {
+static void extend_path(ilp_env_t *ienv, pdeq *path, const ir_node *irn) {
        be_ifg_t *ifg = ienv->co->cenv->ifg;
        int i, len;
        ir_node **curr_path;
@@ -404,6 +409,9 @@ static void extend_path(ilp_env_t *ienv, pdeq *path, ir_node *irn) {
        if (pdeq_contains(path, irn))
                return;
 
+       if (arch_irn_is(ienv->co->aenv, irn, ignore))
+               return;
+
        /* insert the new irn */
        pdeq_putr(path, irn);
 
@@ -430,8 +438,8 @@ static void extend_path(ilp_env_t *ienv, pdeq *path, ir_node *irn) {
                        int cst_idx = lpp_add_cst(ienv->lp, NULL, lpp_greater, 1.0);
                        for (i=1; i<len; ++i) {
                                char buf[16];
-                               int nr_1    = get_irn_node_nr(curr_path[i-1]);
-                               int nr_2    = get_irn_node_nr(curr_path[i]);
+                               int nr_1    = get_irn_idx(curr_path[i-1]);
+                               int nr_2    = get_irn_idx(curr_path[i]);
                                int var_idx = lpp_get_var_idx(ienv->lp, name_cdd_sorted(buf, 'y', nr_1, nr_2));
                                lpp_set_factor_fast(ienv->lp, cst_idx, var_idx, 1.0);
                        }