*
* Driver for the chordal register allocator.
*/
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
#include "obst.h"
#include "pset.h"
#ifdef WITH_LIBCORE
#include <libcore/lc_opts.h>
#include <libcore/lc_opts_enum.h>
-#endif
+#endif /* WITH_LIBCORE */
#include "irmode_t.h"
#include "irgraph_t.h"
#include "besched_t.h"
#include "belive_t.h"
#include "bearch.h"
-#include "beifg.h"
+#include "beifg_t.h"
#include "beifg_impl.h"
#include "bespillbelady.h"
#include "bespillilp.h"
+#include "beconstrperm.h"
+#include "belower.h"
+
+#include "becopyoptmain.h"
+#include "bessadestr.h"
+#include "becopystat.h"
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));
+ 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]) {
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
{ 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
};
&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;
grp = lc_opt_get_grp(grp, "chordal");
-
}
#endif
-static void dump(int mask, ir_graph *irg, const char *suffix,
- void (*dump)(ir_graph *, const char *))
+static void dump(unsigned 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(1 || (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)
chordal_env.irg = irg;
chordal_env.dbg = firm_dbg_register("firm.be.chordal");
chordal_env.main_env = main_env;
- chordal_env.border_heads = pmap_create();
chordal_env.dom_front = be_compute_dominance_frontiers(irg);
obstack_init(&chordal_env.obst);
/* Perform the following for each register class. */
for(j = 0, m = arch_isa_get_n_reg_class(isa); j < m; ++j) {
- chordal_env.cls = arch_isa_get_reg_class(isa, j);
+ chordal_env.cls = arch_isa_get_reg_class(isa, j);
+ chordal_env.border_heads = pmap_create();
+ chordal_env.constr_irn = pset_new_ptr(32);
be_liveness(irg);
+ dump(BE_CH_DUMP_LIVE, irg, chordal_env.cls, "-live", dump_ir_block_graph_sched);
/* spilling */
switch(options.spill_method) {
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);
+#if 0
+ /* 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);
+#endif
be_liveness(irg);
- be_numbering(irg);
be_check_pressure(&chordal_env);
/* Color the graph. */
be_ra_chordal_color(&chordal_env);
+ dump(BE_CH_DUMP_CONSTR, irg, chordal_env.cls, "-color", dump_ir_block_graph_sched);
/* 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
be_ifg_free(chordal_env.ifg);
- be_numbering_done(irg);
+
+ pmap_destroy(chordal_env.border_heads);
+ del_pset(chordal_env.constr_irn);
}
+ be_compute_spill_offsets(&chordal_env);
+
+ dump(BE_CH_DUMP_LOWER, irg, NULL, "-spilloff", dump_ir_block_graph_sched);
+
+ lower_nodes_after_ra(&chordal_env, options.lower_perm_method == BE_CH_LOWER_PERM_COPY ? 1 : 0);
+ dump(BE_CH_DUMP_LOWER, irg, NULL, "-belower-after-ra", dump_ir_block_graph_sched);
+
be_free_dominance_frontiers(chordal_env.dom_front);
- pmap_destroy(chordal_env.border_heads);
obstack_free(&chordal_env.obst, NULL);
}
projects / libfirm / blobdiff