#include "debug.h"
#include "irtools.h"
+#include "bemodule.h"
#include "besched_t.h"
#include "beutil.h"
#include "belive_t.h"
#include "belistsched.h"
#include "beschedmris.h"
+#include "beschedrss.h"
#include "bearch.h"
#include "bestat.h"
+#include <libcore/lc_opts.h>
+#include <libcore/lc_opts_enum.h>
+
+#define BE_SCHED_NODE(irn) (be_is_Keep(irn) || be_is_CopyKeep(irn) || be_is_RegParams(irn))
+
+enum {
+ BE_SCHED_SELECT_TRIVIAL = 0,
+ BE_SCHED_SELECT_REGPRESS = 1,
+ BE_SCHED_SELECT_MUCHNIK = 2,
+ BE_SCHED_SELECT_HEUR = 3,
+ BE_SCHED_SELECT_HMUCHNIK = 4,
+ BE_SCHED_SELECT_RANDOM = 5
+};
+
+enum {
+ BE_SCHED_PREP_NONE = 0,
+ BE_SCHED_PREP_MRIS = 2,
+ BE_SCHED_PREP_RSS = 3
+};
+
+typedef struct _list_sched_options_t {
+ int select; /**< the node selector */
+ int prep; /**< schedule preparation */
+} list_sched_options_t;
+
+static list_sched_options_t list_sched_options = {
+ BE_SCHED_SELECT_HEUR, /* mueller heuristic selector */
+ BE_SCHED_PREP_NONE, /* no scheduling preparation */
+};
+
+/* schedule selector options. */
+static const lc_opt_enum_int_items_t sched_select_items[] = {
+ { "trivial", BE_SCHED_SELECT_TRIVIAL },
+ { "random", BE_SCHED_SELECT_RANDOM },
+ { "regpress", BE_SCHED_SELECT_REGPRESS },
+ { "muchnik", BE_SCHED_SELECT_MUCHNIK },
+ { "heur", BE_SCHED_SELECT_HEUR },
+ { "hmuchnik", BE_SCHED_SELECT_HMUCHNIK },
+ { NULL, 0 }
+};
+
+/* schedule preparation options. */
+static const lc_opt_enum_int_items_t sched_prep_items[] = {
+ { "none", BE_SCHED_PREP_NONE },
+ { "mris", BE_SCHED_PREP_MRIS },
+ { "rss", BE_SCHED_PREP_RSS },
+ { NULL, 0 }
+};
+
+static lc_opt_enum_int_var_t sched_select_var = {
+ &list_sched_options.select, sched_select_items
+};
+
+static lc_opt_enum_int_var_t sched_prep_var = {
+ &list_sched_options.prep, sched_prep_items
+};
+
+static const lc_opt_table_entry_t list_sched_option_table[] = {
+ LC_OPT_ENT_ENUM_PTR("prep", "schedule preparation", &sched_prep_var),
+ LC_OPT_ENT_ENUM_PTR("select", "node selector", &sched_select_var),
+ { NULL }
+};
+
/**
* All scheduling info needed per node.
*/
{
int i, n;
- /* Blocks cannot be scheduled. */
- if (is_Block(irn))
- return 0;
+ /* Blocks cannot be scheduled. */
+ if (is_Block(irn) || get_irn_n_edges(irn) == 0)
+ return 0;
- /*
- * Check, if the given ir node is in a different block as the
- * currently scheduled one. If that is so, don't make the node ready.
- */
- if (env->block != get_nodes_block(irn))
- return 0;
+ /*
+ * Check, if the given ir node is in a different block as the
+ * currently scheduled one. If that is so, don't make the node ready.
+ */
+ if (env->block != get_nodes_block(irn))
+ return 0;
for (i = 0, n = get_irn_ins_or_deps(irn); i < n; ++i) {
- ir_node *op = get_irn_in_or_dep(irn, i);
-
- /* if irn is an End we have keep-alives and op might be a block, skip that */
- if (is_Block(op)) {
- assert(get_irn_op(irn) == op_End);
- continue;
- }
-
- /* If the operand is local to the scheduled block and not yet
- * scheduled, this nodes cannot be made ready, so exit. */
- if (! is_already_scheduled(env, op) && get_nodes_block(op) == env->block)
- return 0;
- }
+ ir_node *op = get_irn_in_or_dep(irn, i);
+
+ /* if irn is an End we have keep-alives and op might be a block, skip that */
+ if (is_Block(op)) {
+ assert(get_irn_op(irn) == op_End);
+ continue;
+ }
+
+ /* If the operand is local to the scheduled block and not yet
+ * scheduled, this nodes cannot be made ready, so exit. */
+ if (! is_already_scheduled(env, op) && get_nodes_block(op) == env->block)
+ return 0;
+ }
nodeset_insert(env->cands, irn);
/**
* Try, to make all users of a node ready.
* In fact, a usage node can only be made ready, if all its operands
- * have already been scheduled yet. This is checked my make_ready().
+ * have already been scheduled yet. This is checked by make_ready().
* @param env The block schedule environment.
* @param irn The node, which usages (successors) are to be made ready.
*/
{
int res = -1;
- if(sel->to_appear_in_schedule)
+ if (get_irn_n_edges(irn) < 1)
+ return 0;
+
+ if (sel->to_appear_in_schedule)
res = sel->to_appear_in_schedule(block_env, irn);
- return res >= 0 ? res : (to_appear_in_schedule(irn) || be_is_Keep(irn) || be_is_CopyKeep(irn) || be_is_RegParams(irn));
+ return res >= 0 ? res : ((to_appear_in_schedule(irn) || BE_SCHED_NODE(irn)) && ! is_Unknown(irn));
}
/**
/* If the node consumes/produces data, it is appended to the schedule
* list, otherwise, it is not put into the list */
if (must_appear_in_schedule(env->selector, env->selector_block_env, irn)) {
- sched_info_t *info = get_irn_sched_info(irn);
- INIT_LIST_HEAD(&info->list);
- info->scheduled = 1;
update_sched_liveness(env, irn);
sched_add_before(env->block, irn);
assert(get_irn_mode(irn) == mode_T && "Mode of node must be tuple");
- if(is_Bad(irn))
+ if (is_Bad(irn))
return;
sched_env_t *env = env_ptr;
const list_sched_selector_t *selector = env->selector;
ir_node *start_node = get_irg_start(get_irn_irg(block));
- sched_info_t *info = get_irn_sched_info(block);
block_sched_env_t be;
const ir_edge_t *edge;
int j, m;
/* Initialize the block's list head that will hold the schedule. */
- INIT_LIST_HEAD(&info->list);
+ sched_init_block(block);
/* Initialize the block scheduling environment */
- be.sched_info = env->sched_info;
- be.block = block;
- be.cands = new_nodeset(get_irn_n_edges(block));
- be.live = new_nodeset(get_irn_n_edges(block));
- be.selector = selector;
- be.sched_env = env;
+ be.sched_info = env->sched_info;
+ be.block = block;
+ be.cands = new_nodeset(get_irn_n_edges(block));
+ be.live = new_nodeset(get_irn_n_edges(block));
+ be.selector = selector;
+ be.sched_env = env;
FIRM_DBG_REGISTER(be.dbg, "firm.be.sched");
DBG((be.dbg, LEVEL_1, "scheduling %+F\n", block));
if (get_irn_opcode(irn) == iro_End)
continue;
+ if (get_irn_n_edges(irn) == 0)
+ continue;
+
if (is_Phi(irn)) {
/*
Phi functions are scheduled immediately, since they only
/* Keeps must be scheduled immediatly */
foreach_nodeset(be.cands, irn) {
- if (be_is_Keep(irn) || be_is_CopyKeep(irn)) {
+ if (be_is_Keep(irn) || be_is_CopyKeep(irn) || is_Sync(irn)) {
nodeset_break(be.cands);
break;
}
/* List schedule a graph. */
void list_sched(const be_irg_t *birg, be_options_t *be_opts)
{
- const arch_env_t *arch_env = birg->main_env->arch_env;
- ir_graph *irg = birg->irg;
+ const arch_env_t *arch_env = birg->main_env->arch_env;
+ ir_graph *irg = birg->irg;
int num_nodes;
sched_env_t env;
list_sched_selector_t sel;
/* Select a scheduler based on backend options */
- switch (be_opts->sched_select) {
+ switch (list_sched_options.select) {
case BE_SCHED_SELECT_TRIVIAL:
memcpy(&sel, trivial_selector, sizeof(sel));
break;
}
/* Assure, that the out edges are computed */
- edges_assure(irg);
+ edges_deactivate(birg->irg);
+ edges_activate(birg->irg);
- if (be_opts->mris)
- mris = be_sched_mris_preprocess(birg);
+ switch (list_sched_options.prep) {
+ case BE_SCHED_PREP_MRIS:
+ mris = be_sched_mris_preprocess(birg);
+ break;
+ case BE_SCHED_PREP_RSS:
+ rss_schedule_preparation(birg);
+ break;
+ default:
+ break;
+ }
num_nodes = get_irg_last_idx(irg);
if (env.selector->finish_graph)
env.selector->finish_graph(env.selector_env);
- if (be_opts->mris)
+ if (list_sched_options.prep == BE_SCHED_PREP_MRIS)
be_sched_mris_free(mris);
DEL_ARR_F(env.sched_info);
}
+
+/* List schedule a block. */
+void list_sched_single_block(const be_irg_t *birg, ir_node *block, be_options_t *be_opts)
+{
+ const arch_env_t *arch_env = birg->main_env->arch_env;
+ ir_graph *irg = birg->irg;
+
+ int num_nodes;
+ sched_env_t env;
+ list_sched_selector_t sel;
+
+ /* Select a scheduler based on backend options */
+ switch (list_sched_options.select) {
+ case BE_SCHED_SELECT_TRIVIAL:
+ memcpy(&sel, trivial_selector, sizeof(sel));
+ break;
+ case BE_SCHED_SELECT_RANDOM:
+ memcpy(&sel, random_selector, sizeof(sel));
+ break;
+ case BE_SCHED_SELECT_REGPRESS:
+ memcpy(&sel, reg_pressure_selector, sizeof(sel));
+ break;
+ case BE_SCHED_SELECT_MUCHNIK:
+ memcpy(&sel, muchnik_selector, sizeof(sel));
+ break;
+ case BE_SCHED_SELECT_HEUR:
+ memcpy(&sel, heuristic_selector, sizeof(sel));
+ break;
+ case BE_SCHED_SELECT_HMUCHNIK:
+ default:
+ memcpy(&sel, trivial_selector, sizeof(sel));
+ }
+
+ /* Assure, that the out edges are computed */
+ edges_deactivate(birg->irg);
+ edges_activate(birg->irg);
+
+ num_nodes = get_irg_last_idx(irg);
+
+ /* initialize environment for list scheduler */
+ memset(&env, 0, sizeof(env));
+ env.selector = arch_env->isa->impl->get_list_sched_selector(arch_env->isa, &sel);
+ env.arch_env = arch_env;
+ env.irg = irg;
+ env.sched_info = NEW_ARR_F(sched_irn_t, num_nodes);
+
+ memset(env.sched_info, 0, num_nodes * sizeof(env.sched_info[0]));
+
+ if (env.selector->init_graph)
+ env.selector_env = env.selector->init_graph(env.selector, arch_env, irg);
+
+ /* Schedule block. */
+ list_sched_block(block, &env);
+
+ if (env.selector->finish_graph)
+ env.selector->finish_graph(env.selector_env);
+
+ DEL_ARR_F(env.sched_info);
+}
+
+/**
+ * Register list scheduler options.
+ */
+void be_init_listsched(void) {
+ lc_opt_entry_t *be_grp = lc_opt_get_grp(firm_opt_get_root(), "be");
+ lc_opt_entry_t *sched_grp = lc_opt_get_grp(be_grp, "listsched");
+
+ lc_opt_add_table(sched_grp, list_sched_option_table);
+}
+
+BE_REGISTER_MODULE_CONSTRUCTOR(be_init_listsched);
projects / libfirm / blobdiff