X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;ds=sidebyside;f=ir%2Fbe%2Fbechordal.c;h=3416e40b5223fc3d7b8219bbc329739694f9fb19;hb=5c1057c78bd79c19bb1b93015ef3963c43700bf2;hp=59313d32aaf729e1fe8328901dda4f29e67011fe;hpb=06e69d9797aaaeac65e2416cd3066ec40810e1ce;p=libfirm diff --git a/ir/be/bechordal.c b/ir/be/bechordal.c index 59313d32a..3416e40b5 100644 --- a/ir/be/bechordal.c +++ b/ir/be/bechordal.c @@ -130,94 +130,12 @@ int ifg_has_edge(const be_chordal_env_t *env, const if_node_t *n1, const if_node static void dump_ifg(const be_chordal_env_t *env) { - static const char *colors[] = { - "coral", - "azure", - "bisque", - "aliceblue", - "blanchedalmond", - "deeppink", - "cornsilk", - "blueviolet", - "floralwhite", - "hotpink", - "gainsboro", - "indianred", - "cornflowerblue", - "ghostwhite", - "lightpink", - "palegoldenrod", - "darkslateblue", - "honeydew", - "ivory", - "lavender", - "mediumvioletred", - "indigo", - "lavenderblush", - "lemonchiffon", - "linen", - "pink", - "mintcream", - "red", - "mediumblue", - "mistyrose", - "mediumslateblue", - "moccasin", - "tomato", - "forestgreen", - "midnightblue", - "navajowhite", - "navy", - "oldlace", - "greenyellow", - "navyblue", - "papayawhip", - "lawngreen", - "powderblue", - "peachpuff", - "seashell", - "snow", - "thistle", - "wheat", - "darkkhaki", - "mintcream", - "khaki", - "Magentas", - "whitesmoke", - "peru", - "palegreen", - "blueviolet", - "rosybrown", - "saddlebrown", - "springgreen", - "darkviolet", - "darkslategray", - "dimgray", - "sienna", - "gray", - "tan", - "gray", - "mediumvioletred", - "lightgray", - "Oranges", - "cyan", - "lightslategray", - "darkorange", - "slategray", - "orangered", - "mediumturquoise", - "violet", - "paleturquoise" - }; - - static const int n_colors = sizeof(colors) / sizeof(colors[0]); - FILE *f; - set *edges = env->edges; - ir_graph *irg = env->irg; - char filename[128]; + set *edges = env->edges; + ir_graph *irg = env->irg; + char filename[128]; - ir_snprintf(filename, sizeof(filename), "ifg_%s_%F.dot", env->cls->name, irg); + ir_snprintf(filename, sizeof(filename), "ifg_%s_%F.dot", env->cls->name, irg); if((f = fopen(filename, "wt")) != NULL) { bitset_pos_t pos; @@ -239,10 +157,8 @@ static void dump_ifg(const be_chordal_env_t *env) bitset_foreach(bs, pos) { int nr = (int) pos; ir_node *irn = get_irn_for_graph_nr(irg, nr); - int color = get_irn_color(irn); - ir_fprintf(f, "\tn%d [label=\"%+F\",color=\"%s\"]\n", nr, irn, - color >= 0 && color < n_colors ? colors[color] : "black"); + ir_fprintf(f, "\tn%d [label=\"%+F\"]\n", nr, irn); } for(edge = set_first(edges); edge; edge = set_next(edges)) { @@ -354,27 +270,26 @@ static void pressure(ir_node *block, void *env_ptr) struct list_head *head; pset *live_in = put_live_in(block, pset_new_ptr_default()); pset *live_end = put_live_end(block, pset_new_ptr_default()); - const arch_register_class_t *cls = env->cls; + const arch_register_class_t *cls = env->cls; DBG((dbg, LEVEL_1, "Computing pressure in block %+F\n", block)); bitset_clear_all(live); /* Set up the border list in the block info */ - head = obstack_alloc(&env->obst, sizeof(*head)); + head = obstack_alloc(&env->obst, sizeof(*head)); INIT_LIST_HEAD(head); - pmap_insert(env->border_heads, block, head); + pmap_insert(env->border_heads, block, head); /* * Make final uses of all values live out of the block. - * They are neccessary to build up real intervals. + * They are necessary to build up real intervals. */ for(irn = pset_first(live_end); irn; irn = pset_next(live_end)) { DBG((dbg, LEVEL_3, "\tMaking live: %+F/%d\n", irn, get_irn_graph_nr(irn))); bitset_set(live, get_irn_graph_nr(irn)); - if(arch_irn_has_reg_class(env->arch_env, irn, 0, cls)) - border_use(irn, step, 0); + if(arch_irn_has_reg_class(env->arch_env, irn, 0, cls)) + border_use(irn, step, 0); } - ++step; /* @@ -385,20 +300,20 @@ static void pressure(ir_node *block, void *env_ptr) DBG((dbg, LEVEL_1, "\tinsn: %+F, pressure: %d\n", irn, pressure)); DBG((dbg, LEVEL_2, "\tlive: %b\n", live)); - /* - * If the node defines some value, which can put into a - * register of the current class, make a border for it. - */ + /* + * If the node defines some value, which can put into a + * register of the current class, make a border for it. + */ if(arch_irn_has_reg_class(env->arch_env, irn, 0, cls)) { - bitset_pos_t elm; + bitset_pos_t elm; int nr = get_irn_graph_nr(irn); bitset_clear(live, nr); border_def(irn, step, 1); #ifdef BUILD_GRAPH - bitset_foreach(live, elm) - add_if(env, nr, (int) elm); + bitset_foreach(live, elm) + add_if(env, nr, (int) elm); #endif } @@ -421,7 +336,6 @@ static void pressure(ir_node *block, void *env_ptr) } } } - ++step; } @@ -560,7 +474,7 @@ be_chordal_env_t *be_ra_chordal(ir_graph *irg, const arch_register_class_t *cls) { int node_count = get_graph_node_count(irg); - int colors_n = arch_register_class_n_regs(cls); + int colors_n = arch_register_class_n_regs(cls); be_chordal_env_t *env = malloc(sizeof(*env)); if(get_irg_dom_state(irg) != dom_consistent) @@ -577,10 +491,10 @@ be_chordal_env_t *be_ra_chordal(ir_graph *irg, env->colors = bitset_obstack_alloc(&env->obst, colors_n); env->in_colors = bitset_obstack_alloc(&env->obst, colors_n); env->colors_n = colors_n; - env->cls = cls; - env->arch_env = arch_env; - env->irg = irg; - env->border_heads = pmap_create(); + env->cls = cls; + env->arch_env = arch_env; + env->irg = irg; + env->border_heads = pmap_create(); /* First, determine the pressure */ dom_tree_walk_irg(irg, pressure, NULL, env); @@ -592,25 +506,63 @@ be_chordal_env_t *be_ra_chordal(ir_graph *irg, dom_tree_walk_irg(irg, assign, NULL, env); #ifdef DUMP_IFG - dump_ifg(env); + dump_ifg(env); #endif #ifdef DUMP_INTERVALS { char buf[128]; - plotter_t *plotter; + plotter_t *plotter; ir_snprintf(buf, sizeof(buf), "ifg_%s_%F.eps", cls->name, irg); - plotter = new_plotter_ps(buf); + plotter = new_plotter_ps(buf); - draw_interval_tree(&draw_chordal_def_opts, env, plotter, arch_env, cls); - plotter_free(plotter); + draw_interval_tree(&draw_chordal_def_opts, env, plotter, arch_env, cls); + plotter_free(plotter); } #endif + return env; +} + +void be_ra_chordal_check(be_chordal_env_t *chordal_env) { + const arch_env_t *arch_env; + struct obstack ob; + pmap_entry *pme; + ir_node **nodes, *n1, *n2; + int i, o; + + arch_env = chordal_env->arch_env; + + /* Collect all irns */ + obstack_init(&ob); + pmap_foreach(chordal_env->border_heads, pme) { + border_t *curr; + struct list_head *head = pme->value; + list_for_each_entry(border_t, curr, head, list) + if (curr->is_def && curr->is_real) + if (arch_get_irn_reg_class(arch_env, curr->irn, arch_pos_make_out(0)) == chordal_env->cls) + obstack_ptr_grow(&ob, curr->irn); + } + obstack_ptr_grow(&ob, NULL); + nodes = (ir_node **) obstack_finish(&ob); + + /* Check them */ + for (i = 0, n1 = nodes[i]; n1; n1 = nodes[++i]) { + const arch_register_t *n1_reg, *n2_reg; + + n1_reg = arch_get_irn_register(arch_env, n1, 0); + assert(arch_reg_is_allocatable(arch_env, n1, arch_pos_make_out(0), n1_reg) && "Register constraint does not hold"); - return env; + for (o = i+1, n2 = nodes[o]; n2; n2 = nodes[++o]) { + n2_reg = arch_get_irn_register(arch_env, n2, 0); + assert(!(nodes_interfere(chordal_env, n1, n2) && n1_reg == n2_reg) && "Interfering values have the same color!"); + } + } + obstack_free(&ob, NULL); } +/* BETTER #ifdef BUILD_GRAPH --> faster version of checker with edges */ + void be_ra_chordal_done(be_chordal_env_t *env) { #ifdef BUILD_GRAPH