*
*/
-#include "becopyilp_t.h"
\ No newline at end of file
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif /* HAVE_CONFIG_H */
+
+#ifdef WITH_ILP
+
+#include "becopyilp_t.h"
+#include "beifg_t.h"
+
+/******************************************************************************
+ _____ _ _ _ _
+ / ____(_) | | | | (_)
+ | (___ _ _______ _ __ ___ __| |_ _ ___| |_ _ ___ _ __
+ \___ \| |_ / _ \ | '__/ _ \/ _` | | | |/ __| __| |/ _ \| '_ \
+ ____) | |/ / __/ | | | __/ (_| | |_| | (__| |_| | (_) | | | |
+ |_____/|_/___\___| |_| \___|\__,_|\__,_|\___|\__|_|\___/|_| |_|
+
+ *****************************************************************************/
+
+
+size_red_t *new_size_red(copy_opt_t *co) {
+ size_red_t *res = xmalloc(sizeof(*res));
+
+ res->co = co;
+ res->all_removed = pset_new_ptr_default();
+ res->col_suff = NULL;
+ obstack_init(&res->ob);
+
+ return res;
+}
+
+/**
+ * Checks if a node is simplicial in the graph heeding the already removed nodes.
+ */
+static INLINE int sr_is_simplicial(size_red_t *sr, const ir_node *ifn) {
+ int i, o, size = 0;
+ ir_node **all, *curr;
+ be_ifg_t *ifg = sr->co->cenv->ifg;
+ void *iter = be_ifg_neighbours_iter_alloca(ifg);
+
+ all = alloca(be_ifg_degree(ifg, ifn) * sizeof(*all));
+
+ /* get all non-removed neighbors */
+ be_ifg_foreach_neighbour(ifg, iter, ifn, curr)
+ if (!sr_is_removed(sr, curr))
+ all[size++] = curr;
+
+ /* check if these form a clique */
+ for (i=0; i<size; ++i)
+ for (o=i+1; o<size; ++o)
+ if (!be_ifg_connected(ifg, all[i], all[o]))
+ return 0;
+
+ /* all edges exist so this is a clique */
+ return 1;
+}
+
+void sr_remove(size_red_t *sr) {
+ ir_node *irn;
+ int redo = 1;
+ int n_nodes = 0;
+ const be_ifg_t *ifg = sr->co->cenv->ifg;
+ void *iter = be_ifg_neighbours_iter_alloca(ifg);
+
+ while (redo) {
+ redo = 0;
+ be_ifg_foreach_node(ifg, iter, irn) {
+ arch_register_req_t req;
+
+ arch_get_register_req(sr->co->aenv, &req, irn, -1);
+
+ if (!arch_register_req_is(&req, limited) && !sr_is_removed(sr, irn) && !co_gs_is_optimizable(sr->co, irn)) {
+ if (sr_is_simplicial(sr, irn)) {
+ coloring_suffix_t *cs = obstack_alloc(&sr->ob, sizeof(*cs));
+
+ cs->irn = irn;
+ cs->next = sr->col_suff;
+ sr->col_suff = cs;
+
+ pset_insert_ptr(sr->all_removed, irn);
+
+ redo = 1;
+ }
+ }
+ }
+ }
+}
+
+void sr_reinsert(size_red_t *sr) {
+ coloring_suffix_t *cs;
+ be_ifg_t *ifg = sr->co->cenv->ifg;
+ bitset_t *used_cols = bitset_alloca(arch_register_class_n_regs(sr->co->cls));
+ void *iter = be_ifg_neighbours_iter_alloca(ifg);
+
+ /* color the removed nodes in right order */
+ for (cs = sr->col_suff; cs; cs = cs->next) {
+ int free_col;
+ ir_node *other, *irn;
+
+ /* get free color by inspecting all neighbors */
+ irn = cs->irn;
+ bitset_clear_all(used_cols);
+
+ be_ifg_foreach_neighbour(ifg, iter, irn, other) {
+ if (!sr_is_removed(sr, other)) /* only inspect nodes which are in graph right now */
+ bitset_set(used_cols, get_irn_col(sr->co, other));
+ }
+
+ /* now all bits not set are possible colors */
+ free_col = bitset_next_clear(used_cols, 0);
+ assert(free_col != -1 && "No free color found. This can not be.");
+ set_irn_col(sr->co, irn, free_col);
+ pset_remove_ptr(sr->all_removed, irn); /* irn is back in graph again */
+ }
+}
+
+void free_size_red(size_red_t *sr) {
+ del_pset(sr->all_removed);
+ obstack_free(&sr->ob, NULL);
+ free(sr);
+}
+
+/******************************************************************************
+ _____ _ _____ _ _____
+ / ____| (_) |_ _| | | __ \
+ | | __ ___ _ __ ___ _ __ _ ___ | | | | | |__) |
+ | | |_ |/ _ \ '_ \ / _ \ '__| |/ __| | | | | | ___/
+ | |__| | __/ | | | __/ | | | (__ _| |_| |____| |
+ \_____|\___|_| |_|\___|_| |_|\___| |_____|______|_|
+
+ *****************************************************************************/
+
+#include <stdio.h>
+
+ilp_env_t *new_ilp_env(copy_opt_t *co, ilp_callback build, ilp_callback apply, void *env) {
+ ilp_env_t *res = xmalloc(sizeof(*res));
+ assert(res);
+
+ res->co = co;
+ res->build = build;
+ res->apply = apply;
+ res->env = env;
+ res->sr = new_size_red(co);
+
+ return res;
+}
+
+lpp_sol_state_t ilp_go(ilp_env_t *ienv) {
+ FILE *f;
+ char buf[256];
+ be_main_env_t *main_env = ienv->co->cenv->birg->main_env;
+
+ sr_remove(ienv->sr);
+
+ ienv->build(ienv);
+
+#ifdef LPP_SOLVE_NET
+ lpp_solve_net(ienv->lp, main_env->options->ilp_server, main_env->options->ilp_solver);
+#else
+ lpp_solve_cplex(ienv->lp);
+#endif
+
+ snprintf(buf, sizeof(buf), "%s.ilp", ienv->co->name);
+ f = fopen(buf, "wt");
+ lpp_dump_plain(ienv->lp, f);
+ fclose(f);
+
+ ienv->apply(ienv);
+
+ sr_reinsert(ienv->sr);
+
+ return lpp_get_sol_state(ienv->lp);
+}
+
+void free_ilp_env(ilp_env_t *ienv) {
+ free_size_red(ienv->sr);
+ free_lpp(ienv->lp);
+ free(ienv);
+}
+
+#else /* WITH_ILP */
+
+static void only_that_you_can_compile_without_WITH_ILP_defined(void) {
+}
+
+#endif /* WITH_ILP */
projects / libfirm / blobdiff