added new default emitter function for Copy and Perm

[libfirm] / ir / be / bechordal_main.c

diff --git a/ir/be/bechordal_main.c b/ir/be/bechordal_main.c
index 7ca168f..328d760 100644 (file)
--- a/ir/be/bechordal_main.c
+++ b/ir/be/bechordal_main.c
@@ -44,14 +44,12 @@
 
 #include "bespillbelady.h"
 #include "bespillilp.h"
+#include "beconstrperm.h"
+#include "belower.h"
 
-#define DO_SSADESTR
-
-#ifdef DO_SSADESTR
+#include "becopyoptmain.h"
 #include "bessadestr.h"
 #include "becopystat.h"
-#include "becopyoptmain.h"
-#endif /* DO_SSADESTR */
 
 
 void be_ra_chordal_check(be_chordal_env_t *chordal_env) {
@@ -81,8 +79,8 @@ void be_ra_chordal_check(be_chordal_env_t *chordal_env) {
 
                n1_reg = arch_get_irn_register(arch_env, n1);
                if (!arch_reg_is_allocatable(arch_env, n1, -1, n1_reg)) {
-                       DBG((dbg, 0, "Register assigned to %+F is not allowed\n", n1));
-                       assert(0 && "Register constraint does not hold");
+                       DBG((dbg, 0, "Register %s assigned to %+F is not allowed\n", n1_reg->name, n1));
+//                     assert(0 && "Register constraint does not hold");
                }
                for (o = i+1, n2 = nodes[o]; n2; n2 = nodes[++o]) {
                        n2_reg = arch_get_irn_register(arch_env, n2);
@@ -157,10 +155,11 @@ int nodes_interfere(const be_chordal_env_t *env, const ir_node *a, const ir_node
 
 
 static be_ra_chordal_opts_t options = {
-       BE_CH_DUMP_NONE,
+       BE_CH_DUMP_ALL,
        BE_CH_SPILL_BELADY,
        BE_CH_COPYMIN_HEUR,
-       BE_CH_IFG_STD
+       BE_CH_IFG_STD,
+       BE_CH_LOWER_PERM_SWAP
 };
 
 #ifdef WITH_LIBCORE
@@ -182,6 +181,12 @@ static const lc_opt_enum_int_items_t ifg_flavor_items[] = {
        { NULL, 0 }
 };
 
+static const lc_opt_enum_int_items_t lower_perm_items[] = {
+       { "swap", BE_CH_LOWER_PERM_SWAP },
+       { "copy", BE_CH_LOWER_PERM_COPY },
+       { NULL, 0 }
+};
+
 static lc_opt_enum_int_var_t spill_var = {
        &options.spill_method, spill_items
 };
@@ -194,6 +199,10 @@ static lc_opt_enum_int_var_t ifg_flavor_var = {
        &options.spill_method, ifg_flavor_items
 };
 
+static lc_opt_enum_int_var_t lower_perm_var = {
+       &options.lower_perm_method, lower_perm_items
+};
+
 static void be_ra_chordal_register_options(lc_opt_entry_t *grp)
 {
        lc_opt_entry_t *dump;
@@ -202,11 +211,22 @@ static void be_ra_chordal_register_options(lc_opt_entry_t *grp)
 }
 #endif
 
-static void dump(int mask, ir_graph *irg, const char *suffix,
-                                void (*dump)(ir_graph *, const char *))
+static void dump(int mask, ir_graph *irg,
+                                const arch_register_class_t *cls,
+                                const char *suffix,
+                                void (*dump_func)(ir_graph *, const char *))
 {
-       if((options.dump_flags & mask) == mask)
-               dump(irg, suffix);
+
+       if((options.dump_flags & mask) == mask) {
+               if(cls) {
+                       char buf[256];
+                       snprintf(buf, sizeof(buf), "-%s%s", cls->name, suffix);
+                       dump_func(irg, buf);
+               }
+
+               else
+                       dump_func(irg, suffix);
+       }
 }
 
 static void be_ra_chordal_main(const be_main_env_t *main_env, ir_graph *irg)
@@ -243,8 +263,13 @@ static void be_ra_chordal_main(const be_main_env_t *main_env, ir_graph *irg)
                        fprintf(stderr, "no valid spiller selected. falling back to belady\n");
                        be_spill_belady(&chordal_env);
                }
+               dump(BE_CH_DUMP_SPILL, irg, chordal_env.cls, "-spill", dump_ir_block_graph_sched);
+               be_liveness(irg);
+               be_check_pressure(&chordal_env);
 
-               dump(BE_CH_DUMP_SPILL, irg, "-spill", dump_ir_block_graph_sched);
+               /* Insert perms before reg-constrained instructions */
+               be_insert_constr_perms(&chordal_env);
+               dump(BE_CH_DUMP_CONSTR, irg, chordal_env.cls, "-constr", dump_ir_block_graph_sched);
 
                be_liveness(irg);
                be_numbering(irg);
@@ -255,21 +280,21 @@ static void be_ra_chordal_main(const be_main_env_t *main_env, ir_graph *irg)
 
                /* Build the interference graph. */
                chordal_env.ifg = be_ifg_std_new(&chordal_env);
+               be_ifg_check(chordal_env.ifg);
 
-#ifdef DO_SSADESTR
                /* copy minimization */
                copystat_collect_cls(&chordal_env);
                be_copy_opt(&chordal_env);
-               dump(BE_CH_DUMP_COPYMIN, irg, "-copymin", dump_ir_block_graph_sched);
+               dump(BE_CH_DUMP_COPYMIN, irg, chordal_env.cls, "-copymin", dump_ir_block_graph_sched);
+               be_ra_chordal_check(&chordal_env);
 
                /* ssa destruction */
                be_ssa_destruction(&chordal_env);
+               dump(BE_CH_DUMP_SSADESTR, irg, chordal_env.cls, "-ssadestr", dump_ir_block_graph_sched);
                be_ssa_destruction_check(&chordal_env);
                be_ra_chordal_check(&chordal_env);
-               dump(BE_CH_DUMP_SSADESTR, irg, "-ssadestr", dump_ir_block_graph_sched);
 
                copystat_dump(irg);
-#endif /* DO_SSADESTR */
 
                be_ifg_free(chordal_env.ifg);
                be_numbering_done(irg);
@@ -277,6 +302,11 @@ static void be_ra_chordal_main(const be_main_env_t *main_env, ir_graph *irg)
                pmap_destroy(chordal_env.border_heads);
        }
 
+       dump(BE_CH_DUMP_SSADESTR, irg, NULL, "-ssadestr-complete", dump_ir_block_graph_sched);
+
+       lower_perms(&chordal_env, options.lower_perm_method == BE_CH_LOWER_PERM_COPY ? 1 : 0);
+       dump(BE_CH_DUMP_LOWER, irg, NULL, "-belower", dump_ir_block_graph_sched);
+
        be_free_dominance_frontiers(chordal_env.dom_front);
        obstack_free(&chordal_env.obst, NULL);
 }