cleanup backend: make pre_spill_prepare_constraint independent of chordal allocator...
[libfirm] / ir / be / bessadestr.c
index 571fbdf..3ac637f 100644 (file)
@@ -24,9 +24,7 @@
  * @date        25.05.2005
  * @version     $Id$
  */
-#ifdef HAVE_CONFIG_H
 #include "config.h"
-#endif
 
 #include "debug.h"
 #include "set.h"
 
 DEBUG_ONLY(static firm_dbg_module_t *dbg = NULL;)
 
-#define get_chordal_arch(ce) ((ce)->birg->main_env->arch_env)
-#define get_reg(irn) arch_get_irn_register(get_chordal_arch(chordal_env), irn)
-#define set_reg(irn, reg) arch_set_irn_register(get_chordal_arch(chordal_env), irn, reg)
-
-#define is_Perm(irn)            (arch_irn_class_is(arch_env, irn, perm))
-#define get_reg_cls(irn)        (arch_get_irn_reg_class(arch_env, irn, -1))
-#define is_curr_reg_class(irn)  (get_reg_cls(p) == chordal_env->cls)
+#define get_reg(irn)         arch_get_irn_register(irn)
+#define set_reg(irn, reg)    arch_set_irn_register(irn, reg)
 
 static void clear_link(ir_node *irn, void *data) {
        (void) data;
@@ -113,7 +106,6 @@ static void insert_all_perms_walker(ir_node *bl, void *data) {
        insert_all_perms_env_t *env = data;
        be_chordal_env_t *chordal_env = env->chordal_env;
        pmap *perm_map = env->perm_map;
-       ir_graph *irg = chordal_env->irg;
        be_lv_t *lv = chordal_env->birg->lv;
        int i, n;
 
@@ -138,13 +130,15 @@ static void insert_all_perms_walker(ir_node *bl, void *data) {
                 * register class by construction.
                 */
                for(phi = get_irn_link(bl); phi; phi = get_irn_link(phi)) {
-                       ir_node     *arg  = get_irn_n(phi, i);
-                       unsigned     hash = hash_irn(arg);
-                       perm_proj_t  templ;
+                       ir_node                   *arg = get_irn_n(phi, i);
+                       const arch_register_req_t *req = arch_get_register_req_out(arg);
+                       unsigned                   hash;
+                       perm_proj_t                templ;
 
-                       if (arch_irn_is(chordal_env->birg->main_env->arch_env, arg, ignore))
+                       if (req->type & arch_register_req_type_ignore)
                                continue;
 
+                       hash = hash_irn(arg);
                        templ.arg  = arg;
                        pp         = set_find(arg_set, &templ, sizeof(templ), hash);
 
@@ -167,14 +161,14 @@ static void insert_all_perms_walker(ir_node *bl, void *data) {
                         * Create a new Perm with the arguments just collected
                         * above in the arg_set and insert it into the schedule.
                         */
-                       in = xmalloc(n_projs * sizeof(in[0]));
+                       in = XMALLOCN(ir_node*, n_projs);
                        for(pp = set_first(arg_set); pp; pp = set_next(arg_set))
                                in[pp->pos] = pp->arg;
 
-                       perm = be_new_Perm(chordal_env->cls, irg, pred_bl, n_projs, in);
+                       perm = be_new_Perm(chordal_env->cls, pred_bl, n_projs, in);
                        be_stat_ev("phi_perm", n_projs);
 
-                       insert_after = sched_skip(sched_last(pred_bl), 0, sched_skip_cf_predicator, chordal_env->birg->main_env->arch_env);
+                       insert_after = sched_skip(sched_last(pred_bl), 0, sched_skip_cf_predicator, NULL);
                        sched_add_after(insert_after, perm);
 
                        /*
@@ -184,7 +178,7 @@ static void insert_all_perms_walker(ir_node *bl, void *data) {
                         */
                        insert_after = perm;
                        for(pp = set_first(arg_set); pp; pp = set_next(arg_set)) {
-                               ir_node *proj = new_r_Proj(irg, pred_bl, perm, get_irn_mode(pp->arg), pp->pos);
+                               ir_node *proj = new_r_Proj(pred_bl, perm, get_irn_mode(pp->arg), pp->pos);
                                pp->proj = proj;
                                assert(get_reg(pp->arg));
                                set_reg(proj, get_reg(pp->arg));
@@ -239,31 +233,32 @@ static void       set_regs_or_place_dupls_walker(ir_node *bl, void *data) {
 
        /* Consider all phis of this block */
        for (phi = get_irn_link(bl); phi; phi = get_irn_link(phi)) {
-               int i, max;
-               ir_node *arg, *phi_block, *arg_block;
-               const arch_register_t *phi_reg, *arg_reg;
-               const arch_register_class_t *cls;
+               ir_node                     *phi_block = get_nodes_block(phi);
+               const arch_register_t       *phi_reg   = get_reg(phi);
+               const arch_register_class_t *cls       = phi_reg->reg_class;
+               int                          max;
+               int                          i;
 
                assert(is_Phi(phi) && "Can only handle phi-destruction :)");
 
-               phi_block = get_nodes_block(phi);
-               phi_reg   = get_reg(phi);
-               cls       = arch_get_irn_reg_class(get_chordal_arch(chordal_env), phi, -1);
-
                /* process all arguments of the phi */
                for (i = 0, max = get_irn_arity(phi); i < max; ++i) {
-                       arg       = get_irn_n(phi, i);
-                       arg_block = get_Block_cfgpred_block(phi_block, i);
-                       arg_reg   = get_reg(arg);
+                       ir_node                   *arg = get_irn_n(phi, i);
+                       const arch_register_req_t *req = arch_get_register_req_out(arg);
+                       const arch_register_t     *arg_reg;
+                       ir_node                   *arg_block;
 
-                       if (arch_irn_is(chordal_env->birg->main_env->arch_env, arg, ignore))
+                       if (req->type & arch_register_req_type_ignore)
                                continue;
 
+                       arg_block = get_Block_cfgpred_block(phi_block, i);
+                       arg_reg   = get_reg(arg);
+
                        assert(arg_reg && "Register must be set while placing perms");
 
                        DBG((dbg, LEVEL_1, "  for %+F(%s) -- %+F(%s)\n", phi, phi_reg->name, arg, arg_reg->name));
 
-                       if (values_interfere(chordal_env->birg, phi, arg)) {
+                       if (be_values_interfere(lv, phi, arg)) {
                                /*
                                        Insert a duplicate in arguments block,
                                        make it the new phi arg,
@@ -271,7 +266,7 @@ static void set_regs_or_place_dupls_walker(ir_node *bl, void *data) {
                                        insert it into schedule,
                                        pin it
                                */
-                               ir_node *dupl  = be_new_Copy(cls, chordal_env->irg, arg_block, arg);
+                               ir_node *dupl  = be_new_Copy(cls, arg_block, arg);
 
                                /* this is commented out because it will fail in case of unknown float */
 #if 0
@@ -288,7 +283,7 @@ static void set_regs_or_place_dupls_walker(ir_node *bl, void *data) {
 
                                set_irn_n(phi, i, dupl);
                                set_reg(dupl, phi_reg);
-                               sched_add_after(sched_skip(sched_last(arg_block), 0, sched_skip_cf_predicator, chordal_env->birg->main_env->arch_env), dupl);
+                               sched_add_after(sched_skip(sched_last(arg_block), 0, sched_skip_cf_predicator, NULL), dupl);
                                pin_irn(dupl, phi_block);
                                be_liveness_introduce(lv, dupl);
                                be_liveness_update(lv, arg);
@@ -340,8 +335,8 @@ static void set_regs_or_place_dupls_walker(ir_node *bl, void *data) {
                                        insert it into schedule,
                                        pin it
                                */
-                               ir_node *perm     = get_Proj_pred(arg);
-                               ir_node *dupl     = be_new_Copy(cls, chordal_env->irg, arg_block, arg);
+                               ir_node *perm = get_Proj_pred(arg);
+                               ir_node *dupl = be_new_Copy(cls, arg_block, arg);
                                ir_node *ins;
 
                                /* this is commented out because it will fail in case of unknown float */
@@ -420,9 +415,9 @@ void be_ssa_destruction(be_chordal_env_t *chordal_env) {
 }
 
 static void ssa_destruction_check_walker(ir_node *bl, void *data) {
-       be_chordal_env_t *chordal_env = data;
        ir_node *phi;
        int i, max;
+       (void)data;
 
        for (phi = get_irn_link(bl); phi; phi = get_irn_link(phi)) {
                const arch_register_t *phi_reg, *arg_reg;
@@ -430,9 +425,10 @@ static void ssa_destruction_check_walker(ir_node *bl, void *data) {
                phi_reg = get_reg(phi);
                /* iterate over all args of phi */
                for (i = 0, max = get_irn_arity(phi); i < max; ++i) {
-                       ir_node *arg = get_irn_n(phi, i);
+                       ir_node                   *arg = get_irn_n(phi, i);
+                       const arch_register_req_t *req = arch_get_register_req_out(arg);
 
-                       if (arch_irn_is(chordal_env->birg->main_env->arch_env, arg, ignore))
+                       if (req->type & arch_register_req_type_ignore)
                                continue;
 
                        arg_reg = get_reg(arg);
@@ -451,5 +447,5 @@ static void ssa_destruction_check_walker(ir_node *bl, void *data) {
 }
 
 void be_ssa_destruction_check(be_chordal_env_t *chordal_env) {
-       irg_block_walk_graph(chordal_env->irg, ssa_destruction_check_walker, NULL, chordal_env);
+       irg_block_walk_graph(chordal_env->irg, ssa_destruction_check_walker, NULL, NULL);
 }