* An ILP scheduler based on
* "ILP-based Instruction Scheduling for IA-64"
* by Daniel Kaestner and Sebastian Winkel
+ * extended with register pressure constraints by Christian Wuerdig
*
* @date 22.10.2005
* @author Christian Wuerdig
#include "debug.h"
#include "irtools.h"
#include "irdump.h"
+#include "irprintf.h"
#include "plist.h"
+#include "irprintf.h"
#include <lpp/lpp.h>
#include <lpp/lpp_net.h>
-#ifdef WITH_LIBCORE
#include <libcore/lc_opts.h>
#include <libcore/lc_opts_enum.h>
#include <libcore/lc_timing.h>
-#endif /* WITH_LIBCORE */
#include "be.h"
#include "benode_t.h"
#include "besched_t.h"
#include "beilpsched.h"
+#include "beutil.h"
+#include "bestat.h"
+#include "beirg_t.h"
typedef struct _ilpsched_options_t {
+ unsigned regpress;
unsigned time_limit;
char log_file[1024];
} ilpsched_options_t;
*/
typedef struct _ilp_var_types_t {
int *x; /* x_{nt}^k variables */
- int *d; /* d_{nt}^k variables */
+ int *a; /* a_{nt}^k variables */
int *y; /* y_{nt}^k variables */
} ilp_var_types_t;
+/**
+ * Holds alive variables for a node live-in to a block.
+ */
+typedef struct _ilp_livein_node_t {
+ ir_node *irn;
+ unsigned max_alive_steps;
+ int *a;
+} ilp_livein_node_t;
+
/* attributes for a node */
typedef struct _ilpsched_node_attr_t {
unsigned asap; /**< The ASAP scheduling control step */
unsigned alap; /**< The ALAP scheduling control step */
+ unsigned latency; /**< Latency of this node (needed for sorting) */
unsigned sched_point; /**< the step in which the node is finally scheduled */
unsigned visit_idx; /**< Index of the node having visited this node last */
unsigned consumer_idx; /**< Index of the node having counted this node as consumer last */
unsigned n_consumer; /**< Number of consumers */
ir_node **block_consumer; /**< List of consumer being in the same block */
+ waitq *projkeeps; /**< A List of Projs and Keeps belonging to this node */
unsigned block_idx : 30; /**< A unique per block index */
unsigned alap_changed : 1; /**< the current ALAP has changed, revisit preds */
unsigned is_dummy_node : 1; /**< this node is assigned to DUMMY unit */
bitset_t *transitive_block_nodes; /**< Set of transitive block nodes (predecessors
for ASAP, successors for ALAP */
- unsigned n_unit_types; /**< number of allowed execution unit types */
+ unsigned n_unit_types; /**< number of allowed execution unit types */
unit_type_info_t *type_info; /**< list of allowed execution unit types */
ilp_var_types_t ilp_vars; /**< the different ILP variables */
} ilpsched_node_attr_t;
unsigned max_steps; /**< Upper bound for block execution */
plist_t *root_nodes; /**< A list of nodes having no user in current block */
ir_node *head_ilp_nodes; /**< A linked list of nodes which will contribute to ILP */
+ pset *livein_nodes; /**< A set of nodes which are live-in to this block */
} ilpsched_block_attr_t;
typedef union _ilpsched_attr_ {
/* The ILP scheduling environment */
typedef struct {
- phase_t ph; /**< The phase */
+ ir_phase ph; /**< The phase */
ir_graph *irg; /**< The current irg */
heights_t *height; /**< The heights object of the irg */
void *irg_env; /**< An environment for the irg scheduling, provided by the backend */
const be_main_env_t *main_env;
const be_machine_t *cpu; /**< the current abstract machine */
ilpsched_options_t *opts; /**< the ilp options for current irg */
+ const be_irg_t *birg; /**< The birg object */
+ be_options_t *be_opts; /**< backend options */
const ilp_sched_selector_t *sel; /**< The ILP sched selector provided by the backend */
DEBUG_ONLY(firm_dbg_module_t *dbg);
} be_ilpsched_env_t;
#define get_ilpsched_block_attr(block) (&(block)->attr.block_attr)
#define get_ilpsched_node_attr(node) (&(node)->attr.node_attr)
-/* iterate over a list of ir_nodes linked by link field */
-#define foreach_linked_irns(head, iter) for ((iter) = (head); (iter); (iter) = get_irn_link((iter)))
-
/* check if node is considered for ILP scheduling */
#define consider_for_sched(isa, irn) \
(! (is_Block(irn) || \
is_normal_Proj(isa, irn) || \
is_Phi(irn) || \
is_NoMem(irn) || \
+ is_Unknown(irn) || \
is_End(irn) \
))
/* check if a double value is within an epsilon environment of 0 */
#define LPP_VALUE_IS_0(dbl) (fabs((dbl)) <= 1e-10)
-#ifdef WITH_LIBCORE
- #define ilp_timer_push(t) lc_timer_push((t))
- #define ilp_timer_pop() lc_timer_pop()
- #define ilp_timer_elapsed_usec(t) lc_timer_elapsed_usec((t))
-#else /* WITH_LIBCORE */
- #define ilp_timer_push(t)
- #define ilp_timer_pop()
- #define ilp_timer_elapsed_usec(t) 0.0
-#endif /* WITH_LIBCORE */
+#define ilp_timer_push(t) lc_timer_push((t))
+#define ilp_timer_pop() lc_timer_pop()
+#define ilp_timer_elapsed_usec(t) lc_timer_elapsed_usec((t))
/* option variable */
static ilpsched_options_t ilp_opts = {
- 120, /* 120 sec per block time limit */
+ 1, /* default is with register pressure constraints */
+ 300, /* 300 sec per block time limit */
"" /* no log file */
};
-#ifdef WITH_LIBCORE
/* ILP options */
static const lc_opt_table_entry_t ilpsched_option_table[] = {
+ LC_OPT_ENT_BOOL("regpress", "Use register pressure constraints", &ilp_opts.regpress),
LC_OPT_ENT_INT("time_limit", "ILP time limit per block", &ilp_opts.time_limit),
LC_OPT_ENT_STR("lpp_log", "LPP logfile (stderr and stdout are supported)", ilp_opts.log_file, sizeof(ilp_opts.log_file)),
{ NULL }
};
-#endif /* WITH_LIBCORE */
+
+/*
+ We need this global variable as we compare nodes dependent on heights,
+ but we cannot pass any information to the qsort compare function.
+*/
+static heights_t *glob_heights;
/**
* Check if irn is a Proj, which has no execution units assigned.
return irn;
}
+static INLINE int fixed_latency(const ilp_sched_selector_t *sel, ir_node *irn, void *env) {
+ unsigned lat = be_ilp_sched_latency(sel, irn, env);
+ if (lat == 0 && ! is_Proj(irn) && ! be_is_Keep(irn))
+ lat = 1;
+ return lat;
+}
+
+static int cmp_live_in_nodes(const void *a, const void *b) {
+ const ilp_livein_node_t *n1 = a;
+ const ilp_livein_node_t *n2 = b;
+
+ return n1->irn != n2->irn;
+}
+
/**
* Compare scheduling time steps of two be_ilpsched_irn's.
*/
ilpsched_node_attr_t *n1_a = get_ilpsched_node_attr(n1);
ilpsched_node_attr_t *n2_a = get_ilpsched_node_attr(n2);
- return QSORT_CMP(n1_a->sched_point, n2_a->sched_point);
+ if (n1_a->sched_point == n2_a->sched_point) {
+ ir_node *irn_a = n1->irn;
+ ir_node *irn_b = n2->irn;
+
+ if (heights_reachable_in_block(glob_heights, irn_a, irn_b))
+ return 1;
+ if (heights_reachable_in_block(glob_heights, irn_b, irn_a))
+ return -1;
+
+ /*
+ Ok, timestep is equal and the nodes are parallel,
+ so check latency and schedule high latency first.
+ */
+ return QSORT_CMP(n2_a->latency, n1_a->latency);
+ }
+ else
+ return QSORT_CMP(n1_a->sched_point, n2_a->sched_point);
}
/**
* In case there is no phase information for irn, initialize it.
*/
-static void *init_ilpsched_irn(phase_t *ph, ir_node *irn, void *old) {
+static void *init_ilpsched_irn(ir_phase *ph, ir_node *irn, void *old) {
be_ilpsched_irn_t *res = old ? old : phase_alloc(ph, sizeof(res[0]));
if (res == old) {
ba->block_last_idx = 0;
ba->root_nodes = plist_new();
ba->head_ilp_nodes = NULL;
+ ba->livein_nodes = new_pset(cmp_live_in_nodes, 16);
+ ba->max_steps = 0;
}
else {
ilpsched_node_attr_t *na = get_ilpsched_node_attr(res);
ilpsched_node_attr_t *na;
ilpsched_block_attr_t *ba;
+ set_irn_link(irn, NULL);
if (! consider_for_sched(env->arch_env->isa, irn))
return;
/* mark user visited by this node */
ua->consumer_idx = idx;
}
+ else if (get_nodes_block(user) != block) {
+ n_consumer++;
+ }
}
}
be_ilpsched_irn_t *node, *block_node;
ilpsched_node_attr_t *na;
ilpsched_block_attr_t *ba;
- unsigned lat;
/* These nodes are handled separate */
if (! consider_for_sched(env->arch_env->isa, irn))
ilpsched_node_attr_t *pna = get_ilpsched_node_attr(pred_node);
unsigned lat;
- lat = be_ilp_sched_latency(env->sel, pred, env->block_env);
- na->asap = MAX(na->asap, pna->asap + lat);
+ lat = fixed_latency(env->sel, pred, env->block_env);
+ na->latency = lat;
+ na->asap = MAX(na->asap, pna->asap + lat);
}
}
set_irn_link(irn, ba->head_ilp_nodes);
ba->head_ilp_nodes = irn;
- lat = be_ilp_sched_latency(env->sel, irn, env->block_env);
-
- if (lat == 0 && ! is_Proj(irn) && ! be_is_Keep(irn))
- lat = 1;
-
- ba->max_steps += lat;
+ ba->max_steps += fixed_latency(env->sel, irn, env->block_env);
DB((env->dbg, LEVEL_2, "%u\n", na->asap));
}
continue;
pna->visit_idx = get_irn_idx(cur_irn);
- lat = be_ilp_sched_latency(env->sel, pred, env->block_env);
+ lat = fixed_latency(env->sel, pred, env->block_env);
/* set ALAP of current pred */
if (pna->alap == 0) {
}
/**
- * We can free the list of root nodes here.
+ * Free list of root nodes and the set of live-in nodes.
*/
static void clear_unwanted_data(ir_node *block, void *walk_env) {
be_ilpsched_env_t *env = walk_env;
plist_free(ba->root_nodes);
ba->root_nodes = NULL;
+ del_pset(ba->livein_nodes);
+ ba->livein_nodes = NULL;
}
/**
* Set the ASAP/ALAP times of Projs and Keeps to their ancestor ones.
*/
static void refine_asap_alap_times(ir_node *irn, void *walk_env) {
- be_ilpsched_env_t *env = walk_env;
+ be_ilpsched_env_t *env = walk_env;
+ ir_node *pred = irn;
be_ilpsched_irn_t *node, *pred_node;
ilpsched_node_attr_t *na, *pna;
- ir_node *pred;
if (! consider_for_sched(env->arch_env->isa, irn))
return;
/* go to the ancestor */
if (be_is_Keep(irn))
- irn = get_irn_n(irn, 0);
- pred = skip_Proj(irn);
+ pred = get_irn_n(irn, 0);
+ pred = skip_Proj(pred);
node = get_ilpsched_irn(env, irn);
pred_node = get_ilpsched_irn(env, pred);
na->asap = pna->asap;
na->alap = pna->alap;
- DBG((env->dbg, LEVEL_2, "fixing ASAP/ALAP of %+F to %u/%u\n", irn, na->asap, na->alap));
-}
-
-#if 0
-/**
- * Calculate the ASAP scheduling step for current irn.
- */
-static void calculate_irn_asap(ir_node *irn, void *walk_env) {
- be_ilpsched_irn_t *node;
- be_ilpsched_env_t *env = walk_env;
- int i;
- ir_node *block;
- ilpsched_node_attr_t *na;
-
- /* These nodes are handled separate */
- if (! consider_for_sched(env->arch_env->isa, irn))
- return;
-
- DBG((env->dbg, LEVEL_2, "Calculating ASAP of node %+F\n", irn));
-
- node = get_ilpsched_irn(env, irn);
- block = get_nodes_block(irn);
- na = get_ilpsched_node_attr(node);
-
- /* accumulate all transitive predecessors of current node */
- for (i = get_irn_ins_or_deps(irn) - 1; i >= 0; --i) {
- ir_node *pred = skip_normal_Proj(env->arch_env->isa, get_irn_in_or_dep(irn, i));
- be_ilpsched_irn_t *pred_node;
- ilpsched_node_attr_t *pna;
- unsigned idx;
-
- if (be_is_Keep(pred))
- pred = skip_normal_Proj(env->arch_env->isa, get_irn_n(pred, 0));
-
- if (is_Phi(pred) || block != get_nodes_block(pred) || is_NoMem(pred))
- continue;
-
- pred_node = get_ilpsched_irn(env, pred);
- pna = get_ilpsched_node_attr(pred_node);
- idx = get_irn_idx(irn);
-
- assert(pna->asap && "missing ASAP of predecessor");
-
- /*
- We have not already visited this predecessor
- -> accumulate it's predecessors
- */
- if (pna->visit_idx != idx) {
- pna->visit_idx = idx;
- na->transitive_block_nodes = bitset_or(na->transitive_block_nodes, pna->transitive_block_nodes);
- DBG((env->dbg, LEVEL_3, "\taccumulating preds of %+F\n", pred));
- }
- }
-
- /* every node is it's own transitive predecessor in block */
- bitset_set(na->transitive_block_nodes, na->block_idx);
-
- /* asap = number of transitive predecessors in this block */
- na->asap = bitset_popcnt(na->transitive_block_nodes);
-
- DBG((env->dbg, LEVEL_2, "\tcalculated ASAP is %u\n", na->asap));
-}
-
-/**
- * Calculate the ALAP scheduling step for current irn.
- * @note: requires ASAP being calculated.
- */
-static void calculate_irn_alap(ir_node *irn, void *walk_env) {
- be_ilpsched_env_t *env = walk_env;
- int i, is_head;
- ir_node *block;
- be_ilpsched_irn_t *node;
- ilpsched_node_attr_t *na;
-
- /* These nodes are handled separate */
- if (! consider_for_sched(env->arch_env->isa, irn))
- return;
-
- DBG((env->dbg, LEVEL_2, "Calculating ALAP of node %+F ... ", irn));
-
- block = get_nodes_block(irn);
- node = get_ilpsched_irn(env, irn);
- na = get_ilpsched_node_attr(node);
- is_head = 1;
-
- for (i = get_irn_ins_or_deps(irn) - 1; i >= i; --i) {
- ir_node *pred = skip_normal_Proj(env->arch_env->isa, get_irn_in_or_dep(irn, i));
-
- /* check, if we have a head node */
- if (! is_Phi(pred) && ! is_NoMem(pred) && get_nodes_block(pred) == block) {
- be_ilpsched_irn_t *pred_node = get_ilpsched_irn(env, pred);
- ilpsched_node_attr_t *pna = get_ilpsched_node_attr(pred_node);
- unsigned lat;
-
- lat = be_ilp_sched_latency(env->sel, pred, env->block_env);
- na->alap = MAX(na->alap, pna->alap + lat);
- is_head = 0;
- }
- }
-
- /* handle head nodes (no predecessor in same block) */
- if (is_head) {
- be_ilpsched_irn_t *block_node = get_ilpsched_irn(env, block);
- ilpsched_block_attr_t *ba = get_ilpsched_block_attr(block_node);
- plist_element_t *el;
-
- DB((env->dbg, LEVEL_2, "head node ... "));
-
- /*
- We have a head node here:
- ALAP(m) = sum_over_all_m(ASAP(m))
- where m is a root node and there is no path from m to n
- */
- foreach_plist(ba->root_nodes, el) {
- ir_node *root = plist_element_get_value(el);
-
- /* check if current root is independent from irn */
- if (! heights_reachable_in_block(env->height, root, irn)) {
- be_ilpsched_irn_t *root_node = get_ilpsched_irn(env, root);
- ilpsched_node_attr_t *rna = get_ilpsched_node_attr(root_node);
-
- na->alap = rna->asap + be_ilp_sched_latency(env->sel, root, env->block_env);
- }
- }
- }
-
- DB((env->dbg, LEVEL_2, "%u\n", na->alap));
-}
-
-/**
- * Accumulate the successors of all nodes from irn on upwards.
- */
-static void accumulate_succs(be_ilpsched_env_t *env, ir_node *irn) {
- unsigned i, n;
- be_ilpsched_irn_t *node = get_ilpsched_irn(env, irn);
- ilpsched_node_attr_t *na = get_ilpsched_node_attr(node);
- ir_node *block = get_nodes_block(irn);
- waitq *wq = new_waitq();
-
- DBG((env->dbg, LEVEL_3, "\taccumulating succs of %+F\n", irn));
-
- /* enqueue node for final alap calculation */
- if (! na->enqueued) {
- be_ilpsched_irn_t *block_node = get_ilpsched_irn(env, block);
- ilpsched_block_attr_t *ba = get_ilpsched_block_attr(block_node);
-
- na->enqueued = 1;
- na->alap = ba->max_steps;
- waitq_put(env->alap_queue, node);
-
- set_irn_link(irn, ba->head_ilp_nodes);
- ba->head_ilp_nodes = irn;
- DBG((env->dbg, LEVEL_5, "\t\tlinked %+F to ilp nodes of %+F, attr %p\n", irn, block, ba));
- DBG((env->dbg, LEVEL_4, "\t\tenqueueing %+F for final ALAP calculation\n", irn));
- }
-
- for (i = 0, n = get_irn_ins_or_deps(irn); i < n; ++i) {
- ir_node *pred = skip_normal_Proj(env->arch_env->isa, get_irn_in_or_dep(irn, i));
- unsigned idx;
- be_ilpsched_irn_t *pred_node;
- ilpsched_node_attr_t *pna;
-
- if (be_is_Keep(pred))
- pred = skip_normal_Proj(env->arch_env->isa, get_irn_n(pred, 0));
-
- if (is_Phi(pred) || block != get_nodes_block(pred) || is_NoMem(pred))
- continue;
-
- pred_node = get_ilpsched_irn(env, pred);
- pna = get_ilpsched_node_attr(pred_node);
- idx = get_irn_idx(irn);
-
- /* accumulate the successors */
- if (pna->visit_idx != idx) {
- pna->visit_idx = idx;
- pna->transitive_block_nodes = bitset_or(pna->transitive_block_nodes, na->transitive_block_nodes);
-
- /* set current node as successor */
- bitset_set(pna->transitive_block_nodes, na->block_idx);
- waitq_put(wq, pred);
-
- DBG((env->dbg, LEVEL_3, "\taccumulating succs of %+F to %+F\n", irn, pred));
- }
- }
-
- /* process all predecessors */
- while (! waitq_empty(wq)) {
- accumulate_succs(env, waitq_get(wq));
- }
-
- del_waitq(wq);
-}
-
-/**
- * Calculate the ALAP scheduling step of all irns in current block.
- * Depends on ASAP being calculated.
- */
-static void calculate_block_alap(ir_node *block, void *walk_env) {
- be_ilpsched_env_t *env = walk_env;
- be_ilpsched_irn_t *block_node = get_ilpsched_irn(env, block);
- ilpsched_block_attr_t *ba = get_ilpsched_block_attr(block_node);
-
- assert(is_Block(block));
-
- DBG((env->dbg, LEVEL_2, "Calculating ALAP for nodes in %+F (%u nodes)\n", block, ba->n_interesting_nodes));
-
- /* TODO: Might be faster to use out edges and call phase_reinit_single_irn_data */
- phase_reinit_block_irn_data(&env->ph, block);
-
- /* calculate the alap of all nodes, starting at collected roots upwards */
- while (! waitq_empty(ba->root_nodes)) {
- accumulate_succs(env, waitq_get(ba->root_nodes));
- }
+ /* record all Projs and Keeps for this node */
+ if (! pna->projkeeps)
+ pna->projkeeps = new_waitq();
+ waitq_put(pna->projkeeps, irn);
- /* we don't need it anymore */
- del_waitq(ba->root_nodes);
- ba->root_nodes = NULL;
-
- /* all interesting nodes should have their successors accumulated now */
- while (! waitq_empty(env->alap_queue)) {
- be_ilpsched_irn_t *node = waitq_get(env->alap_queue);
- ilpsched_node_attr_t *na = get_ilpsched_node_attr(node);
-
- /* control flow ops must always be scheduled last */
- if (is_cfop(node->irn) && ! is_Start(node->irn) && get_irn_opcode(node->irn) != iro_End)
- na->asap = na->alap;
- else
- na->alap -= bitset_popcnt(na->transitive_block_nodes);
- DBG((env->dbg, LEVEL_2, "\tALAP of %+F is %u (%u succs, %u consumer)\n",
- node->irn, na->alap, bitset_popcnt(na->transitive_block_nodes), na->n_consumer));
-
- /* maximum block steps is maximum alap of all nodes */
- ba->max_steps = MAX(ba->max_steps, na->alap);
- }
+ DBG((env->dbg, LEVEL_2, "fixing ASAP/ALAP of %+F to %u/%u\n", irn, na->asap, na->alap));
}
-#endif /* if 0 */
/*******************************************
* _ _ _
foreach_out_edge(irn, edge) {
ir_node *user = get_edge_src_irn(edge);
- if (to_appear_in_schedule(user))
+ if ((to_appear_in_schedule(user) || get_irn_mode(user) == mode_b) &&
+ get_irn_n_edges(user) > 0)
+ {
notified_sched_add_before(env, block, user, cycle);
+ }
check_for_keeps(keeps, block, user);
}
cur_var = 0;
found = 0;
+ if (! na->is_dummy_node) {
+ for (tp_idx = na->n_unit_types - 1; ! found && tp_idx >= 0; --tp_idx) {
+ for (t = na->asap - 1; ! found && t <= na->alap - 1; ++t) {
+ double cost = lpp_get_var_sol(lpp, na->ilp_vars.y[cur_var]);
+
+ if (! LPP_VALUE_IS_0(cost)) {
+ DBG((env->dbg, LEVEL_3, "%+F has additional regpressure costs of %f\n", irn, cost));
+ found = 1;
+ }
+ }
+ }
+ }
+
+ found = 0;
/* go over all variables of a node until the non-zero one is found */
for (tp_idx = na->n_unit_types - 1; ! found && tp_idx >= 0; --tp_idx) {
for (t = na->asap - 1; ! found && t <= na->alap - 1; ++t) {
if (! LPP_VALUE_IS_0(val)) {
na->sched_point = t;
ARR_APP1(be_ilpsched_irn_t *, sched_nodes, node);
- DBG((env->dbg, LEVEL_1, "Schedpoint of %+F is %u at unit type %s\n",
+ DBG((env->dbg, LEVEL_2, "Schedpoint of %+F is %u at unit type %s\n",
irn, t, na->type_info[tp_idx].tp->name));
found = 1;
}
}
}
+ glob_heights = env->height;
/* sort nodes ascending by scheduling time step */
qsort(sched_nodes, ARR_LEN(sched_nodes), sizeof(sched_nodes[0]), cmp_ilpsched_irn);
}
case iro_End:
case iro_Proj:
case iro_Bad:
+ case iro_Unknown:
break;
default:
if (is_cfop(irn)) {
/* add all nodes from list */
for (i = 0, l = ARR_LEN(sched_nodes); i < l; ++i) {
ilpsched_node_attr_t *na = get_ilpsched_node_attr(sched_nodes[i]);
- add_to_sched(env, block, sched_nodes[i]->irn, na->sched_point);
+ if (sched_nodes[i]->irn != cfop)
+ add_to_sched(env, block, sched_nodes[i]->irn, na->sched_point);
}
/* schedule control flow node if not already done */
*
************************************************/
+static int be_ilpsched_set_type_info(be_ilpsched_env_t *env, ir_node *irn, struct obstack *obst) {
+ const be_execution_unit_t ***execunits = arch_isa_get_allowed_execution_units(env->arch_env->isa, irn);
+ unsigned n_unit_types = 0;
+ be_ilpsched_irn_t *node;
+ ilpsched_node_attr_t *na;
+ unsigned unit_idx, tp_idx;
+
+ /* count number of available unit types for this node */
+ for (n_unit_types = 0; execunits[n_unit_types]; ++n_unit_types)
+ /* just count */ ;
+
+ node = get_ilpsched_irn(env, irn);
+ na = get_ilpsched_node_attr(node);
+
+ if (! na->type_info) {
+ na->n_unit_types = n_unit_types;
+ na->type_info = NEW_ARR_D(unit_type_info_t, obst, n_unit_types);
+
+ /* fill the type info array */
+ for (tp_idx = 0; tp_idx < n_unit_types; ++tp_idx) {
+ for (unit_idx = 0; execunits[tp_idx][unit_idx]; ++unit_idx) {
+ /* beware: we also count number of available units here */
+ if (be_machine_is_dummy_unit(execunits[tp_idx][unit_idx]))
+ na->is_dummy_node = 1;
+ }
+
+ na->type_info[tp_idx].tp = execunits[tp_idx][0]->tp;
+ na->type_info[tp_idx].n_units = unit_idx;
+ }
+ }
+
+ return n_unit_types;
+}
+
+/**
+ * Returns the largest alap time of a user of @p irn.
+ * The user must be in block @p block.
+ */
+static unsigned be_ilpsched_get_max_alap_user(be_ilpsched_env_t *env, ir_node *irn, ir_node *block) {
+ const ir_edge_t *edge;
+ unsigned max_alap = 0;
+
+ foreach_out_edge(irn, edge) {
+ ir_node *user = get_edge_src_irn(edge);
+
+ if (get_nodes_block(user) == block) {
+ be_ilpsched_irn_t *node = get_ilpsched_irn(env, user);
+ ilpsched_node_attr_t *na = get_ilpsched_node_attr(node);
+
+ max_alap = MAX(max_alap, na->alap);
+ }
+ }
+
+ assert(max_alap > 0);
+ return max_alap;
+}
+
/**
* Create the following variables:
* - x_{nt}^k binary weigthed with: t
* node n is scheduled at time step t to unit type k
* ==>> These variables represent the schedule
- * TODO:
*
- * - d_{nt}^k binary weighted with: t
- * node n dies at time step t on unit type k
+ * - a_{nt}^k binary weighted with num_nodes
+ * node n is alive at time step t on unit type k
*
- * - y_{nt}^k binary weighted with: num_nodes^2
- * node n is scheduled at time step t to unit type k
- * although all units of this type are occupied
+ * - y_{nt}^k continuous weighted with: num_nodes^2
+ * register pressure over limit for unit type k
* ==>> These variables represent the register pressure
+ *
*/
static void create_variables(be_ilpsched_env_t *env, lpp_t *lpp, be_ilpsched_irn_t *block_node, struct obstack *var_obst) {
char buf[1024];
ir_node *irn;
unsigned num_block_var, num_nodes;
+ ilp_livein_node_t *livein;
ilpsched_block_attr_t *ba = get_ilpsched_block_attr(block_node);
unsigned weigth_y = ba->n_interesting_nodes * ba->n_interesting_nodes;
-#ifdef WITH_LIBCORE
lc_timer_t *t_var = lc_timer_register("beilpsched_var", "create ilp variables");
-#endif /* WITH_LIBCORE */
ilp_timer_push(t_var);
num_block_var = num_nodes = 0;
foreach_linked_irns(ba->head_ilp_nodes, irn) {
- const be_execution_unit_t ***execunits = arch_isa_get_allowed_execution_units(env->arch_env->isa, irn);
- be_ilpsched_irn_t *node;
- ilpsched_node_attr_t *na;
- unsigned n_unit_types, tp_idx, unit_idx, n_var, cur_unit;
- unsigned cur_var_d, cur_var_x, cur_var_y, num_die;
-
- /* count number of available unit types for this node */
- for (n_unit_types = 0; execunits[n_unit_types]; ++n_unit_types)
- /* just count */ ;
-
- node = get_ilpsched_irn(env, irn);
- na = get_ilpsched_node_attr(node);
+ be_ilpsched_irn_t *node;
+ ilpsched_node_attr_t *na;
+ unsigned n_unit_types, tp_idx, n_var, cur_unit;
+ unsigned cur_var_ad, cur_var_x, cur_var_y, num_ad;
+ int i;
- na->n_unit_types = n_unit_types;
- na->type_info = NEW_ARR_D(unit_type_info_t, var_obst, n_unit_types);
-
- /* fill the type info array */
- for (tp_idx = 0; tp_idx < n_unit_types; ++tp_idx) {
- for (unit_idx = 0; execunits[tp_idx][unit_idx]; ++unit_idx) {
- /* beware: we also count number of available units here */
- if (be_machine_is_dummy_unit(execunits[tp_idx][unit_idx]))
- na->is_dummy_node = 1;
- }
-
- na->type_info[tp_idx].tp = execunits[tp_idx][0]->tp;
- na->type_info[tp_idx].n_units = unit_idx;
- }
+ node = get_ilpsched_irn(env, irn);
+ na = get_ilpsched_node_attr(node);
+ n_unit_types = be_ilpsched_set_type_info(env, irn, var_obst);
/* allocate space for ilp variables */
na->ilp_vars.x = NEW_ARR_D(int, var_obst, n_unit_types * VALID_SCHED_INTERVAL(na));
na->ilp_vars.y = NEW_ARR_D(int, var_obst, n_unit_types * VALID_SCHED_INTERVAL(na));
memset(na->ilp_vars.y, -1, ARR_LEN(na->ilp_vars.y) * sizeof(na->ilp_vars.y[0]));
- num_die = ba->max_steps - na->asap + 1;
- na->ilp_vars.d = NEW_ARR_D(int, var_obst, n_unit_types * num_die);
- memset(na->ilp_vars.d, -1, ARR_LEN(na->ilp_vars.d) * sizeof(na->ilp_vars.d[0]));
+ num_ad = ba->max_steps - na->asap + 1;
+ na->ilp_vars.a = NEW_ARR_D(int, var_obst, n_unit_types * num_ad);
+ memset(na->ilp_vars.a, -1, ARR_LEN(na->ilp_vars.a) * sizeof(na->ilp_vars.a[0]));
}
DBG((env->dbg, LEVEL_3, "\thandling %+F (asap %u, alap %u, unit types %u):\n",
irn, na->asap, na->alap, na->n_unit_types));
- cur_var_x = cur_var_d = cur_var_y = cur_unit = n_var = 0;
+ cur_var_x = cur_var_ad = cur_var_y = cur_unit = n_var = 0;
/* create variables */
for (tp_idx = 0; tp_idx < n_unit_types; ++tp_idx) {
unsigned t;
/* y_{nt}^k variables */
snprintf(buf, sizeof(buf), "y_n%u_%s_%u",
get_irn_idx(irn), na->type_info[tp_idx].tp->name, t);
- na->ilp_vars.y[cur_var_y++] = lpp_add_var(lpp, buf, lpp_binary, (double)(weigth_y));
+ na->ilp_vars.y[cur_var_y++] = lpp_add_var(lpp, buf, lpp_continous, (double)(weigth_y));
DBG((env->dbg, LEVEL_4, "\t\tcreated ILP variable %s\n", buf));
/* variable counter */
/* a node can die at any step t: asap(n) <= t <= U */
if (! na->is_dummy_node) {
for (t = na->asap - 1; t <= ba->max_steps; ++t) {
- /* d_{nt}^k variables */
- snprintf(buf, sizeof(buf), "d_n%u_%s_%u",
+
+ /* a_{nt}^k variables */
+ snprintf(buf, sizeof(buf), "a_n%u_%s_%u",
get_irn_idx(irn), na->type_info[tp_idx].tp->name, t);
- na->ilp_vars.d[cur_var_d++] = lpp_add_var(lpp, buf, lpp_binary, (double)(t + 1));
+ na->ilp_vars.a[cur_var_ad++] = lpp_add_var(lpp, buf, lpp_binary, (double)(ba->n_interesting_nodes));
DBG((env->dbg, LEVEL_4, "\t\tcreated ILP variable %s\n", buf));
/* variable counter */
num_block_var++;
}
}
+
+ /* collect live-in nodes */
+ for (i = get_irn_arity(irn) - 1; i >= 0; --i) {
+ ir_node *pred = get_irn_n(irn, i);
+
+ if (get_nodes_block(pred) != block_node->irn && consider_for_sched(env->arch_env->isa, pred)) {
+ be_ilpsched_set_type_info(env, pred, var_obst);
+ if (! na->is_dummy_node) {
+ ilp_livein_node_t *entry = obstack_alloc(var_obst, sizeof(*entry));
+ entry->irn = pred;
+ entry->a = NULL;
+ pset_insert(ba->livein_nodes, entry, (unsigned)get_irn_idx(pred));
+ }
+ }
+ }
}
DB((env->dbg, LEVEL_3, "%u variables created\n", n_var));
num_nodes++;
}
+
+ /* create alive variables a_{nt}^k for live-ins */
+ foreach_pset(ba->livein_nodes, livein) {
+ be_ilpsched_irn_t *node;
+ ilpsched_node_attr_t *na;
+ unsigned tp_idx, var_idx;
+ ir_node *irn;
+
+ irn = livein->irn;
+ node = get_ilpsched_irn(env, irn);
+ na = get_ilpsched_node_attr(node);
+
+ livein->max_alive_steps = be_ilpsched_get_max_alap_user(env, irn, block_node->irn);
+
+ livein->a = NEW_ARR_D(int, var_obst, na->n_unit_types * livein->max_alive_steps);
+ var_idx = 0;
+
+ /* create variables */
+ for (tp_idx = 0; tp_idx < na->n_unit_types; ++tp_idx) {
+ unsigned t;
+
+ for (t = 0; t < livein->max_alive_steps; ++t) {
+ /* a_{nt}^k variables */
+ snprintf(buf, sizeof(buf), "al_n%u_%s_%u",
+ get_irn_idx(irn), na->type_info[tp_idx].tp->name, t);
+ livein->a[var_idx++] = lpp_add_var(lpp, buf, lpp_binary, (double)(ba->n_interesting_nodes));
+ DBG((env->dbg, LEVEL_4, "\t\tcreated ILP variable %s\n", buf));
+ num_block_var++;
+ }
+ }
+ }
+
ilp_timer_pop();
DBG((env->dbg, LEVEL_1, "... %u variables for %u nodes created (%g sec)\n",
num_block_var, num_nodes, ilp_timer_elapsed_usec(t_var) / 1000000.0));
*
*******************************************************/
+/**
+ * Collect all operands and nodes @p irn depends on.
+ * If there is a Proj within the dependencies, all other Projs of the parent node are added as well.
+ */
+static nodeset *sta_collect_in_deps(ir_node *irn, nodeset *deps) {
+ int i;
+
+ for (i = get_irn_ins_or_deps(irn) - 1; i >= 0; --i) {
+ ir_node *p = get_irn_in_or_dep(irn, i);
+
+ if (is_Proj(p)) {
+ const ir_edge_t *edge;
+
+ p = get_Proj_pred(p);
+ foreach_out_edge(p, edge) {
+ ir_node *src = get_edge_src_irn(edge);
+ nodeset_insert(deps, src);
+ }
+ }
+ else {
+ nodeset_insert(deps, p);
+ }
+ }
+
+ return deps;
+}
+
/**
* Create following ILP constraints:
* - the assignment constraints:
ir_node *irn;
ilpsched_block_attr_t *ba = get_ilpsched_block_attr(block_node);
bitset_t *bs_block_irns = bitset_alloca(ba->block_last_idx);
-#ifdef WITH_LIBCORE
- lc_timer_t *t_cst_assign = lc_timer_register("beilpsched_cst_assign", "create assignment constraints");
- lc_timer_t *t_cst_dead = lc_timer_register("beilpsched_cst_assign_dead", "create dead node assignment constraints");
- lc_timer_t *t_cst_prec = lc_timer_register("beilpsched_cst_prec", "create precedence constraints");
-#endif /* WITH_LIBCORE */
+ lc_timer_t *t_cst_assign = lc_timer_register("beilpsched_cst_assign", "create assignment constraints");
+ lc_timer_t *t_cst_prec = lc_timer_register("beilpsched_cst_prec", "create precedence constraints");
num_cst_assign = num_cst_prec = num_cst_dead = 0;
foreach_linked_irns(ba->head_ilp_nodes, irn) {
- int cst, tp_idx, i;
+ int cst, tp_idx;
unsigned cur_var;
be_ilpsched_irn_t *node;
ilpsched_node_attr_t *na;
+ ir_node *pred;
+ nodeset *deps = new_nodeset(16);
node = get_ilpsched_irn(env, irn);
na = get_ilpsched_node_attr(node);
lpp_set_factor_fast_bulk(lpp, cst, na->ilp_vars.x, ARR_LEN(na->ilp_vars.x), 1.0);
ilp_timer_pop();
- /* the dead node assignment constraint */
- if (! na->is_dummy_node) {
- ilp_timer_push(t_cst_dead);
- snprintf(buf, sizeof(buf), "dead_node_assign_cst_n%u", get_irn_idx(irn));
- cst = lpp_add_cst_uniq(lpp, buf, lpp_less, 1.0);
- DBG((env->dbg, LEVEL_2, "added constraint %s\n", buf));
-
- lpp_set_factor_fast_bulk(lpp, cst, na->ilp_vars.d, ARR_LEN(na->ilp_vars.d), 1.0);
- ilp_timer_pop();
- }
+ /* We have separate constraints for Projs and Keeps */
+ // ILP becomes infeasible ?!?
+// if (is_Proj(irn) || be_is_Keep(irn))
+// continue;
/* the precedence constraints */
ilp_timer_push(t_cst_prec);
bs_block_irns = bitset_clear_all(bs_block_irns);
- for (i = get_irn_ins_or_deps(irn) - 1; i >= 0; --i) {
- ir_node *pred = skip_normal_Proj(env->arch_env->isa, get_irn_in_or_dep(irn, i));
+
+ deps = sta_collect_in_deps(irn, deps);
+ foreach_nodeset(deps, pred) {
unsigned t_low, t_high, t;
be_ilpsched_irn_t *pred_node;
ilpsched_node_attr_t *pna;
unsigned delay;
+ pred = skip_normal_Proj(env->arch_env->isa, pred);
if (is_Phi(pred) || block_node->irn != get_nodes_block(pred) || is_NoMem(pred))
continue;
continue;
/* irn = n, pred = m */
- delay = be_ilp_sched_latency(env->sel, pred, env->block_env);
+ delay = fixed_latency(env->sel, pred, env->block_env);
t_low = MAX(na->asap, pna->asap + delay - 1);
t_high = MIN(na->alap, pna->alap + delay - 1);
for (t = t_low - 1; t <= t_high - 1; ++t) {
unsigned tn, tm;
- int cur_idx, int_na, int_pna;
- int *tmp_var_idx;
-
- int_na = (t >= na->asap - 1) ? MIN(t, na->alap - 1) - na->asap + 1 : 0;
- int_pna = (t < pna->alap) ? pna->alap - t : 0;
- tmp_var_idx = NEW_ARR_F(int, int_na * na->n_unit_types + int_pna * pna->n_unit_types);
+ int *tmp_var_idx = NEW_ARR_F(int, 0);
snprintf(buf, sizeof(buf), "precedence_n%u_n%u_%u", get_irn_idx(pred), get_irn_idx(irn), t);
cst = lpp_add_cst_uniq(lpp, buf, lpp_less, 1.0);
DBG((env->dbg, LEVEL_2, "added constraint %s\n", buf));
num_cst_prec++;
- cur_idx = 0;
-
/* lpp_set_factor_fast_bulk needs variables sorted ascending by index */
if (na->ilp_vars.x[0] < pna->ilp_vars.x[0]) {
/* node variables have smaller index than pred variables */
for (tp_idx = na->n_unit_types - 1; tp_idx >= 0; --tp_idx) {
for (tn = na->asap - 1; tn <= t; ++tn) {
unsigned idx = ILPVAR_IDX(na, tp_idx, tn);
- tmp_var_idx[cur_idx++] = na->ilp_vars.x[idx];
+ ARR_APP1(int, tmp_var_idx, na->ilp_vars.x[idx]);
}
}
for (tp_idx = pna->n_unit_types - 1; tp_idx >= 0; --tp_idx) {
for (tm = t - delay + 1; tm < pna->alap; ++tm) {
unsigned idx = ILPVAR_IDX(pna, tp_idx, tm);
- tmp_var_idx[cur_idx++] = pna->ilp_vars.x[idx];
+ ARR_APP1(int, tmp_var_idx, pna->ilp_vars.x[idx]);
}
}
}
for (tp_idx = pna->n_unit_types - 1; tp_idx >= 0; --tp_idx) {
for (tm = t - delay + 1; tm < pna->alap; ++tm) {
unsigned idx = ILPVAR_IDX(pna, tp_idx, tm);
- tmp_var_idx[cur_idx++] = pna->ilp_vars.x[idx];
+ ARR_APP1(int, tmp_var_idx, pna->ilp_vars.x[idx]);
}
}
for (tp_idx = na->n_unit_types - 1; tp_idx >= 0; --tp_idx) {
for (tn = na->asap - 1; tn <= t; ++tn) {
unsigned idx = ILPVAR_IDX(na, tp_idx, tn);
- tmp_var_idx[cur_idx++] = na->ilp_vars.x[idx];
+ ARR_APP1(int, tmp_var_idx, na->ilp_vars.x[idx]);
}
}
}
- lpp_set_factor_fast_bulk(lpp, cst, tmp_var_idx, ARR_LEN(tmp_var_idx), 1.0);
+ if (ARR_LEN(tmp_var_idx) > 0)
+ lpp_set_factor_fast_bulk(lpp, cst, tmp_var_idx, ARR_LEN(tmp_var_idx), 1.0);
DEL_ARR_F(tmp_var_idx);
}
}
+ del_nodeset(deps);
ilp_timer_pop();
}
DBG((env->dbg, LEVEL_1, "\t%u assignement constraints (%g sec)\n",
char buf[1024];
unsigned num_cst_resrc = 0;
ilpsched_block_attr_t *ba = get_ilpsched_block_attr(block_node);
-#ifdef WITH_LIBCORE
lc_timer_t *t_cst_rsrc = lc_timer_register("beilpsched_cst_rsrc", "create resource constraints");
-#endif /* WITH_LIBCORE */
ilp_timer_push(t_cst_rsrc);
for (glob_type_idx = env->cpu->n_unit_types - 1; glob_type_idx >= 0; --glob_type_idx) {
unsigned num_cst_bundle = 0;
unsigned n_instr_max = env->cpu->bundle_size * env->cpu->bundels_per_cycle;
ilpsched_block_attr_t *ba = get_ilpsched_block_attr(block_node);
-#ifdef WITH_LIBCORE
lc_timer_t *t_cst_bundle = lc_timer_register("beilpsched_cst_bundle", "create bundle constraints");
-#endif /* WITH_LIBCORE */
ilp_timer_push(t_cst_bundle);
for (t = 0; t < ba->max_steps; ++t) {
}
/**
- * Create ILP dying nodes constraints:
- * - set variable d_{nt}^k to 1 if nodes n dies at step t on unit k
+ * Create ILP alive nodes constraints:
+ * - set variable a_{nt}^k to 1 if nodes n is alive at step t on unit k
*/
-static void create_dying_nodes_constraint(be_ilpsched_env_t *env, lpp_t *lpp, be_ilpsched_irn_t *block_node) {
+static void create_alive_nodes_constraint(be_ilpsched_env_t *env, lpp_t *lpp, be_ilpsched_irn_t *block_node) {
char buf[1024];
- unsigned t;
+ ir_node *irn;
unsigned num_cst = 0;
ilpsched_block_attr_t *ba = get_ilpsched_block_attr(block_node);
-#ifdef WITH_LIBCORE
- lc_timer_t *t_cst = lc_timer_register("beilpsched_cst_dying_nodes", "create dying nodes constraints");
-#endif /* WITH_LIBCORE */
+ lc_timer_t *t_cst = lc_timer_register("beilpsched_cst_alive_nodes", "create alive nodes constraints");
ilp_timer_push(t_cst);
- /* check all time_steps */
- for (t = 0; t < ba->max_steps; ++t) {
- ir_node *irn;
+ /* for each node */
+ foreach_linked_irns(ba->head_ilp_nodes, irn) {
+ be_ilpsched_irn_t *node = get_ilpsched_irn(env, irn);
+ ilpsched_node_attr_t *na = get_ilpsched_node_attr(node);
+ unsigned t;
- /* for all nodes */
- foreach_linked_irns(ba->head_ilp_nodes, irn) {
- be_ilpsched_irn_t *node = get_ilpsched_irn(env, irn);
- ilpsched_node_attr_t *na = get_ilpsched_node_attr(node);
+ /* we ignore nodes assigned to dummy unit here */
+ if (na->is_dummy_node)
+ continue;
- /* if node has no consumer within current block, it cannot die here */
- /* we also ignore nodes assigned to dummy unit */
- if (ARR_LEN(na->block_consumer) < 1 || na->is_dummy_node)
- continue;
+ /* check check all time steps: asap(n) <= t <= U */
+ for (t = na->asap - 1; t < ba->max_steps; ++t) {
+ int node_tp_idx;
- /* node can only die here if t at least asap(n) */
- if (t >= na->asap - 1) {
- int node_tp_idx;
+ /* for all unit types available for this node */
+ for (node_tp_idx = na->n_unit_types - 1; node_tp_idx >= 0; --node_tp_idx) {
+ unsigned tn, tn_max, idx;
+ int cst, i;
+ int *tmp_var_idx_n = NEW_ARR_F(int, 0);
+ int *tmp_var_idx_m = NEW_ARR_F(int, 0);
- /* for all unit types */
- for (node_tp_idx = na->n_unit_types - 1; node_tp_idx >= 0; --node_tp_idx) {
- int tp_idx, i, cst;
- int *tmp_var_idx = NEW_ARR_F(int, 0);
+ snprintf(buf, sizeof(buf), "alive_node_cst_%u_n%u_%s",
+ t, get_irn_idx(irn), na->type_info[node_tp_idx].tp->name);
+ cst = lpp_add_cst_uniq(lpp, buf, lpp_less, 0.0);
+ DBG((env->dbg, LEVEL_2, "added constraint %s\n", buf));
+ num_cst++;
- snprintf(buf, sizeof(buf), "dying_node_cst_%u_n%u", t, get_irn_idx(irn));
- cst = lpp_add_cst_uniq(lpp, buf, lpp_less, (double)(na->n_consumer - 1));
- DBG((env->dbg, LEVEL_2, "added constraint %s\n", buf));
- num_cst++;
+ tn_max = MIN(na->alap - 1, t);
+ /* check if the node has been scheduled so far */
+ for (tn = na->asap - 1; tn <= tn_max; ++tn) {
+ int idx = ILPVAR_IDX(na, node_tp_idx, tn);
+ ARR_APP1(int, tmp_var_idx_n, na->ilp_vars.x[idx]);
+ }
- /* number of consumer scheduled till t */
- for (i = ARR_LEN(na->block_consumer) - 1; i >= 0; --i) {
- be_ilpsched_irn_t *cons = get_ilpsched_irn(env, na->block_consumer[i]);
- ilpsched_node_attr_t *ca = get_ilpsched_node_attr(cons);
+ if (ARR_LEN(tmp_var_idx_n) > 0)
+ lpp_set_factor_fast_bulk(lpp, cst, tmp_var_idx_n, ARR_LEN(tmp_var_idx_n), (double)(na->n_consumer));
+ DEL_ARR_F(tmp_var_idx_n);
- for (tp_idx = ca->n_unit_types - 1; tp_idx >= 0; --tp_idx) {
- unsigned tm;
+ /* subtract the number of consumer scheduled so far */
+ for (i = ARR_LEN(na->block_consumer) - 1; i >= 0; --i) {
+ be_ilpsched_irn_t *cons = get_ilpsched_irn(env, na->block_consumer[i]);
+ ilpsched_node_attr_t *ca = get_ilpsched_node_attr(cons);
+ int tp_idx;
+ unsigned tm, tm_max;
- for (tm = ca->asap - 1; tm <= t && tm <= ca->alap - 1; ++tm) {
- int idx = ILPVAR_IDX(ca, tp_idx, tm);
- ARR_APP1(int, tmp_var_idx, ca->ilp_vars.x[idx]);
- }
+ tm_max = MIN(ca->alap - 1, t);
+ for (tp_idx = ca->n_unit_types - 1; tp_idx >= 0; --tp_idx) {
+ for (tm = ca->asap - 1; tm <= tm_max; ++tm) {
+ int idx = ILPVAR_IDX(ca, tp_idx, tm);
+ ARR_APP1(int, tmp_var_idx_m, ca->ilp_vars.x[idx]);
}
}
+ }
- /* could be that no consumer can be scheduled at this point */
- if (ARR_LEN(tmp_var_idx)) {
- int idx;
- unsigned tn;
+ if (ARR_LEN(tmp_var_idx_m) > 0)
+ lpp_set_factor_fast_bulk(lpp, cst, tmp_var_idx_m, ARR_LEN(tmp_var_idx_m), -1.0);
+ DEL_ARR_F(tmp_var_idx_m);
- /* subtract possible prior kill points */
- for (tn = na->asap - 1; tn < t; ++tn) {
- idx = ILPVAR_IDX_DEAD(ba, na, node_tp_idx, tn);
- lpp_set_factor_fast(lpp, cst, na->ilp_vars.d[idx], -1.0);
- }
+ /* -c * a_{nt}^k */
+ idx = ILPVAR_IDX_DEAD(ba, na, node_tp_idx, t);
+ lpp_set_factor_fast(lpp, cst, na->ilp_vars.a[idx], 0.0 - (double)(na->n_consumer));
- idx = ILPVAR_IDX_DEAD(ba, na, node_tp_idx, t);
- lpp_set_factor_fast(lpp, cst, na->ilp_vars.d[idx], 0.0 - (double)(na->n_consumer));
- lpp_set_factor_fast_bulk(lpp, cst, tmp_var_idx, ARR_LEN(tmp_var_idx), 1.0);
- }
+ }
+ }
+ }
+ ilp_timer_pop();
+ DBG((env->dbg, LEVEL_1, "\t%u alive nodes constraints (%g sec)\n",
+ num_cst, ilp_timer_elapsed_usec(t_cst) / 1000000.0));
+}
+
+/**
+ * Create ILP alive nodes constraints for live-in nodes:
+ * - set variable a_{nt}^k to 1 if nodes n is alive at step t on unit k
+ */
+static void create_alive_livein_nodes_constraint(be_ilpsched_env_t *env, lpp_t *lpp, be_ilpsched_irn_t *block_node) {
+ char buf[1024];
+ ilp_livein_node_t *livein;
+ unsigned num_cst = 0;
+ ilpsched_block_attr_t *ba = get_ilpsched_block_attr(block_node);
+ lc_timer_t *t_cst = lc_timer_register("beilpsched_cst_alive_livein_nodes", "create alive livein nodes constraints");
+
+ ilp_timer_push(t_cst);
+ /* for each node */
+ foreach_pset(ba->livein_nodes, livein) {
+ ir_node *irn = livein->irn;
+ be_ilpsched_irn_t *node = get_ilpsched_irn(env, irn);
+ ilpsched_node_attr_t *na = get_ilpsched_node_attr(node);
+ unsigned t;
+
+ /* check check all time steps: 0 <= t < max_alive_steps */
+ for (t = 0; t < livein->max_alive_steps; ++t) {
+ int node_tp_idx;
+
+ /* for all unit types available for this node */
+ for (node_tp_idx = na->n_unit_types - 1; node_tp_idx >= 0; --node_tp_idx) {
+ const ir_edge_t *edge;
+ unsigned idx;
+ int cst, num_block_user;
+ int *tmp_var_idx_m = NEW_ARR_F(int, 0);
+
+ /* check the number of consumer scheduled so far */
+ num_block_user = 0;
+ foreach_out_edge(irn, edge) {
+ ir_node *user = get_edge_src_irn(edge);
+ be_ilpsched_irn_t *cons;
+ ilpsched_node_attr_t *ca;
+ int tp_idx;
+ unsigned tm, tm_max;
- DEL_ARR_F(tmp_var_idx);
+ /* check only users within current block */
+ if (get_nodes_block(user) != block_node->irn)
+ continue;
+
+ num_block_user++;
+ cons = get_ilpsched_irn(env, user);
+ ca = get_ilpsched_node_attr(cons);
+
+ tm_max = MIN(ca->alap - 1, t);
+ for (tp_idx = ca->n_unit_types - 1; tp_idx >= 0; --tp_idx) {
+ for (tm = ca->asap - 1; tm <= tm_max; ++tm) {
+ int idx = ILPVAR_IDX(ca, tp_idx, tm);
+ ARR_APP1(int, tmp_var_idx_m, ca->ilp_vars.x[idx]);
+ }
+ }
}
- }
+ snprintf(buf, sizeof(buf), "alive_livein_node_cst_%u_n%u_%s",
+ t, get_irn_idx(irn), na->type_info[node_tp_idx].tp->name);
+ cst = lpp_add_cst_uniq(lpp, buf, lpp_greater, (double)num_block_user);
+ DBG((env->dbg, LEVEL_2, "added constraint %s\n", buf));
+ num_cst++;
+
+ /* sum(scheduled users) */
+ if (ARR_LEN(tmp_var_idx_m) > 0)
+ lpp_set_factor_fast_bulk(lpp, cst, tmp_var_idx_m, ARR_LEN(tmp_var_idx_m), 1.0);
+ DEL_ARR_F(tmp_var_idx_m);
+
+ /* + c * a_{nt}^k */
+ idx = node_tp_idx * livein->max_alive_steps + t;
+ lpp_set_factor_fast(lpp, cst, livein->a[idx], (double)(num_block_user));
+ }
}
}
ilp_timer_pop();
- DBG((env->dbg, LEVEL_1, "\t%u dying nodes constraints (%g sec)\n",
+ DBG((env->dbg, LEVEL_1, "\t%u alive livein nodes constraints (%g sec)\n",
num_cst, ilp_timer_elapsed_usec(t_cst) / 1000000.0));
}
/**
-* Create ILP pressure constraints:
-* - add additional costs to objective function if a node is scheduled
-* on a unit although all units of this type are currently occupied
-*/
-static void create_pressure_constraint(be_ilpsched_env_t *env, lpp_t *lpp, be_ilpsched_irn_t *block_node) {
+ * Create ILP pressure constraints, based on alive nodes:
+ * - add additional costs to objective function if a node is scheduled
+ * on a unit although all units of this type are currently occupied
+ */
+static void create_pressure_alive_constraint(be_ilpsched_env_t *env, lpp_t *lpp, be_ilpsched_irn_t *block_node) {
char buf[1024];
ir_node *cur_irn;
unsigned num_cst = 0;
ilpsched_block_attr_t *ba = get_ilpsched_block_attr(block_node);
-#ifdef WITH_LIBCORE
lc_timer_t *t_cst = lc_timer_register("beilpsched_cst_pressure", "create pressure constraints");
-#endif /* WITH_LIBCORE */
ilp_timer_push(t_cst);
/* y_{nt}^k is set for each node and timestep and unit type */
if (cur_tp_idx < 0)
continue;
- /* check all time_steps */
+ /* check all time_steps at which the current node can be scheduled */
for (t = cur_na->asap - 1; t <= cur_na->alap - 1; ++t) {
int cst, y_idx;
ir_node *irn;
- int *tmp_idx_1 = NEW_ARR_F(int, 0);
- int *tmp_idx_m1 = NEW_ARR_F(int, 0);
+ int *tmp_var_idx = NEW_ARR_F(int, 0);
+ ilp_livein_node_t *livein;
snprintf(buf, sizeof(buf), "pressure_cst_n%u_%u_%s", cur_idx, t, cur_tp->name);
cst = lpp_add_cst_uniq(lpp, buf, lpp_less, (double)(cur_tp->n_units - 1));
DBG((env->dbg, LEVEL_2, "added constraint %s\n", buf));
num_cst++;
- /*
- - accumulate all nodes scheduled on unit type k till t
- - subtract all nodes died on unit type k till t
- */
+ /* - accumulate all nodes alive at point t on unit type k */
foreach_linked_irns(ba->head_ilp_nodes, irn) {
be_ilpsched_irn_t *node = get_ilpsched_irn(env, irn);
ilpsched_node_attr_t *na = get_ilpsched_node_attr(node);
- unsigned tn, tmax;
- int tp_idx;
+ int a_idx, tp_idx;
+
+ /* check if node can be alive here */
+ if (t < na->asap - 1)
+ continue;
- tmax = MIN(t, na->alap - 1);
tp_idx = is_valid_unit_type_for_node(cur_tp, node);
- /* current unit type is not suitable for current node */
+ /* current type is not suitable */
if (tp_idx < 0)
continue;
- for (tn = na->asap - 1; tn <= tmax; ++tn) {
- int idx;
+ a_idx = ILPVAR_IDX_DEAD(ba, na, tp_idx, t);
+ ARR_APP1(int, tmp_var_idx, na->ilp_vars.a[a_idx]);
+ }
+ /* do the same for livein nodes */
+ foreach_pset(ba->livein_nodes, livein) {
+ ir_node *irn = livein->irn;
+ be_ilpsched_irn_t *node = get_ilpsched_irn(env, irn);
+ int a_idx, tp_idx;
+
+ /* check if node can be alive here */
+ if (t >= livein->max_alive_steps)
+ continue;
+
+ tp_idx = is_valid_unit_type_for_node(cur_tp, node);
+
+ /* current type is not suitable */
+ if (tp_idx < 0)
+ continue;
+
+ a_idx = tp_idx * livein->max_alive_steps + t;
+ ARR_APP1(int, tmp_var_idx, livein->a[a_idx]);
+ }
+
+ if (ARR_LEN(tmp_var_idx) > 0)
+ lpp_set_factor_fast_bulk(lpp, cst, tmp_var_idx, ARR_LEN(tmp_var_idx), 1.0);
+ DEL_ARR_F(tmp_var_idx);
+
+ /* - num_nodes * y_{nt}^k */
+ y_idx = ILPVAR_IDX(cur_na, cur_tp_idx, t);
+ lpp_set_factor_fast(lpp, cst, cur_na->ilp_vars.y[y_idx], -1.0);
+ }
+ }
+ }
+ ilp_timer_pop();
+ DBG((env->dbg, LEVEL_1, "\t%u pressure constraints (%g sec)\n",
+ num_cst, ilp_timer_elapsed_usec(t_cst) / 1000000.0));
+}
+
+/**
+ * Create ILP branch constraints:
+ * Assure, alle nodes are scheduled prior to cfg op.
+ */
+static void create_branch_constraint(be_ilpsched_env_t *env, lpp_t *lpp, be_ilpsched_irn_t *block_node) {
+ char buf[1024];
+ ir_node *cur_irn, *cfop;
+ unsigned num_cst = 0;
+ unsigned num_non_branches = 0;
+ ilpsched_block_attr_t *ba = get_ilpsched_block_attr(block_node);
+ lc_timer_t *t_cst = lc_timer_register("beilpsched_cst_branch", "create branch constraints");
- /* node scheduled */
- idx = ILPVAR_IDX(na, tp_idx, tn);
- ARR_APP1(int, tmp_idx_1, na->ilp_vars.x[idx]);
+ ilp_timer_push(t_cst);
+ cfop = NULL;
+ /* determine number of non-branch nodes and the one and only branch node */
+ foreach_linked_irns(ba->head_ilp_nodes, cur_irn) {
+ switch (get_irn_opcode(cur_irn)) {
+ case iro_Phi:
+ case iro_Start:
+ case iro_End:
+ case iro_Proj:
+ case iro_Bad:
+ case iro_Unknown:
+ num_non_branches++;
+ break;
+ default:
+ if (is_cfop(cur_irn)) {
+ assert(cfop == NULL && "Highlander - there can be only one to be constrained");
+ cfop = cur_irn;
+ }
+ else {
+ num_non_branches++;
+ }
+ break;
+ }
+ }
+
+ if (cfop) {
+ be_ilpsched_irn_t *cf_node = get_ilpsched_irn(env, cfop);
+ ilpsched_node_attr_t *cf_na = get_ilpsched_node_attr(cf_node);
+ unsigned t;
+
+ /* for each time step */
+ for (t = cf_na->asap - 1; t <= cf_na->alap - 1; ++t) {
+ int *non_branch_vars, *branch_vars;
+ int cst;
- /* node dead */
- idx = ILPVAR_IDX_DEAD(ba, na, tp_idx, tn);
- ARR_APP1(int, tmp_idx_m1, na->ilp_vars.d[idx]);
+ snprintf(buf, sizeof(buf), "branch_cst_%u_n%u", t, get_irn_idx(cfop));
+ cst = lpp_add_cst_uniq(lpp, buf, lpp_greater, 0.0);
+ DBG((env->dbg, LEVEL_2, "added constraint %s\n", buf));
+ num_cst++;
+
+ /* sum(overall non branches: n)x_{nt}^k - sum(overall branches: b)(num_non_branches * x_{bt}^k >= 0) */
+ non_branch_vars = NEW_ARR_F(int, 0);
+ branch_vars = NEW_ARR_F(int, 0);
+ foreach_linked_irns(ba->head_ilp_nodes, cur_irn) {
+ be_ilpsched_irn_t *node = get_ilpsched_irn(env, cur_irn);
+ ilpsched_node_attr_t *na = get_ilpsched_node_attr(node);
+ int tp_idx;
+
+ if (cur_irn == cfop) {
+ /* for all unit types available for this node */
+ for (tp_idx = na->n_unit_types - 1; tp_idx >= 0; --tp_idx) {
+ unsigned idx = ILPVAR_IDX(na, tp_idx, t);
+ ARR_APP1(int, branch_vars, na->ilp_vars.x[idx]);
}
}
+ else {
+ /* sum up all possible schedule points for this node upto current timestep */
+ for (tp_idx = na->n_unit_types - 1; tp_idx >= 0; --tp_idx) {
+ unsigned tn;
+ unsigned tmax = MIN(t, na->alap - 1);
- if (ARR_LEN(tmp_idx_1) > 0)
- lpp_set_factor_fast_bulk(lpp, cst, tmp_idx_1, ARR_LEN(tmp_idx_1), 1.0);
+ for (tn = na->asap - 1; tn <= tmax; ++tn) {
+ unsigned idx = ILPVAR_IDX(na, tp_idx, tn);
+ ARR_APP1(int, non_branch_vars, na->ilp_vars.x[idx]);
+ }
+ }
+ }
- if (ARR_LEN(tmp_idx_m1) > 0)
- lpp_set_factor_fast_bulk(lpp, cst, tmp_idx_m1, ARR_LEN(tmp_idx_m1), -1.0);
+ }
- /* BEWARE: t is unsigned, so (double)(-t) won't work */
- y_idx = ILPVAR_IDX(cur_na, cur_tp_idx, t);
- lpp_set_factor_fast(lpp, cst, cur_na->ilp_vars.y[y_idx], 0.0 - (double)(t));
+ if (ARR_LEN(non_branch_vars) > 0)
+ lpp_set_factor_fast_bulk(lpp, cst, non_branch_vars, ARR_LEN(non_branch_vars), 1.0);
+ if (ARR_LEN(branch_vars) > 0)
+ lpp_set_factor_fast_bulk(lpp, cst, branch_vars, ARR_LEN(branch_vars), 0.0 - (double)num_non_branches);
+
+ DEL_ARR_F(branch_vars);
+ DEL_ARR_F(non_branch_vars);
+ }
+ }
+ ilp_timer_pop();
+ DBG((env->dbg, LEVEL_1, "\t%u branch constraints (%g sec)\n",
+ num_cst, ilp_timer_elapsed_usec(t_cst) / 1000000.0));
+}
- DEL_ARR_F(tmp_idx_1);
- DEL_ARR_F(tmp_idx_m1);
+#if 0
+static void create_proj_keep_constraints(be_ilpsched_env_t *env, lpp_t *lpp, be_ilpsched_irn_t *block_node) {
+ char buf[1024];
+ ir_node *irn;
+ unsigned num_cst = 0;
+ ilpsched_block_attr_t *ba = get_ilpsched_block_attr(block_node);
+ lc_timer_t *t_cst = lc_timer_register("beilpsched_cst_projkeep", "create proj and keep constraints");
+
+ ilp_timer_push(t_cst);
+ /* check all nodes */
+ foreach_linked_irns(ba->head_ilp_nodes, irn) {
+ be_ilpsched_irn_t *node;
+ ilpsched_node_attr_t *na;
+ unsigned t;
+ ir_node **pk;
+
+ /* only mode_T nodes can have Projs and Keeps assigned */
+ if (get_irn_mode(irn) != mode_T)
+ continue;
+
+ node = get_ilpsched_irn(env, irn);
+ na = get_ilpsched_node_attr(node);
+
+ /* check if has some Projs and Keeps assigned */
+ if (! na->projkeeps)
+ continue;
+
+ /* we can run only once over the queue, so preserve the nodes */
+ pk = NEW_ARR_F(ir_node *, 0);
+ while (! waitq_empty(na->projkeeps))
+ ARR_APP1(ir_node *, pk, waitq_get(na->projkeeps));
+ del_waitq(na->projkeeps);
+ na->projkeeps = NULL;
+
+ /* for all time steps at which this node can be scheduled */
+ for (t = na->asap - 1; t <= na->alap - 1; ++t) {
+ int cst, tp_idx, i;
+ int *tmp_var_idx_n = NEW_ARR_F(int, 0);
+
+ /* add the constraint, assure, that a node is always scheduled along with it's Projs and Keeps */
+ snprintf(buf, sizeof(buf), "projkeep_cst_n%u_%u", get_irn_idx(irn), t);
+ cst = lpp_add_cst_uniq(lpp, buf, lpp_equal, 0.0);
+ DBG((env->dbg, LEVEL_2, "added constraint %s\n", buf));
+ num_cst++;
+
+ /* sum up scheduling variables for this time step */
+ for (tp_idx = na->n_unit_types - 1; tp_idx >= 0; --tp_idx) {
+ int idx = ILPVAR_IDX(na, tp_idx, t);
+ ARR_APP1(int, tmp_var_idx_n, na->ilp_vars.x[idx]);
+ }
+
+ if (ARR_LEN(tmp_var_idx_n) > 0)
+ lpp_set_factor_fast_bulk(lpp, cst, tmp_var_idx_n, ARR_LEN(tmp_var_idx_n), (double)(ARR_LEN(pk)));
+ DEL_ARR_F(tmp_var_idx_n);
+
+ /* subtract all Proj and Keep variables for this step */
+ for (i = ARR_LEN(pk) - 1; i >= 0; --i) {
+ be_ilpsched_irn_t *pk_node = get_ilpsched_irn(env, pk[i]);
+ ilpsched_node_attr_t *pk_na = get_ilpsched_node_attr(pk_node);
+ int pk_tp_idx;
+
+ for (pk_tp_idx = pk_na->n_unit_types - 1; pk_tp_idx >= 0; --pk_tp_idx) {
+ int idx = ILPVAR_IDX(pk_na, pk_tp_idx, t);
+ lpp_set_factor_fast(lpp, cst, pk_na->ilp_vars.x[idx], -1.0);
+ }
}
}
}
ilp_timer_pop();
- DBG((env->dbg, LEVEL_1, "\t%u pressure constraints (%g sec)\n",
+ DBG((env->dbg, LEVEL_1, "\t%u Proj and Keep constraints (%g sec)\n",
num_cst, ilp_timer_elapsed_usec(t_cst) / 1000000.0));
}
+#endif /* if 0 */
/***************************************************
* _____ _ _____ _
ilpsched_block_attr_t *ba = get_ilpsched_block_attr(block_node);
FILE *logfile = NULL;
lpp_t *lpp = NULL;
+ int need_heur = 0;
struct obstack var_obst;
+ char name[1024];
DBG((env->dbg, 255, "\n\n\n=========================================\n"));
DBG((env->dbg, 255, " ILP Scheduling for %+F\n", block));
/* if we have less than two interesting nodes, there is no need to create the ILP */
if (ba->n_interesting_nodes > 1) {
- double fact_var = ba->n_interesting_nodes > 25 ? 1.1 : 1.2;
- double fact_cst = ba->n_interesting_nodes > 25 ? 0.7 : 1.5;
+ double fact_var = ba->n_interesting_nodes > 25 ? 2.3 : 3;
+ double fact_cst = ba->n_interesting_nodes > 25 ? 3 : 4.5;
int base_num = ba->n_interesting_nodes * ba->n_interesting_nodes;
int estimated_n_var = (int)((double)base_num * fact_var);
int estimated_n_cst = (int)((double)base_num * fact_cst);
- DBG((env->dbg, LEVEL_1, "Creating LPP with estimed numbers: %d vars, %d cst\n",
+ DBG((env->dbg, LEVEL_1, "Creating LPP with estimated numbers: %d vars, %d cst\n",
estimated_n_var, estimated_n_cst));
/* set up the LPP object */
+ snprintf(name, sizeof(name), "ilp scheduling IRG %s", get_entity_ld_name(get_irg_entity(env->irg)));
+
lpp = new_lpp_userdef(
- "be ilp scheduling",
+ (const char *)name,
lpp_minimize,
- estimated_n_cst + 1, /* num vars */
- estimated_n_cst + 20, /* num cst */
- 1.2); /* grow factor */
+ estimated_n_cst, /* num vars */
+ estimated_n_cst + 1, /* num cst */
+ 1.3); /* grow factor */
obstack_init(&var_obst);
/* create ILP variables */
create_assignment_and_precedence_constraints(env, lpp, block_node);
create_ressource_constraints(env, lpp, block_node);
create_bundle_constraints(env, lpp, block_node);
- create_dying_nodes_constraint(env, lpp, block_node);
- create_pressure_constraint(env, lpp, block_node);
+ create_branch_constraint(env, lpp, block_node);
+ //create_proj_keep_constraints(env, lpp, block_node);
+
+ if (env->opts->regpress) {
+ create_alive_nodes_constraint(env, lpp, block_node);
+ create_alive_livein_nodes_constraint(env, lpp, block_node);
+ create_pressure_alive_constraint(env, lpp, block_node);
+ }
DBG((env->dbg, LEVEL_1, "ILP to solve: %u variables, %u constraints\n", lpp->var_next, lpp->cst_next));
/* debug stuff, dump lpp when debugging is on */
DEBUG_ONLY(
- if (firm_dbg_get_mask(env->dbg) > 0) {
+ if (firm_dbg_get_mask(env->dbg) > 1) {
char buf[1024];
FILE *f;
char buf[1024];
FILE *f;
- snprintf(buf, sizeof(buf), "lpp_block_%lu.assert.txt", get_irn_node_nr(block));
- f = fopen(buf, "w");
- lpp_dump_plain(lpp, f);
- fclose(f);
- snprintf(buf, sizeof(buf), "lpp_block_%lu.assert.mps", get_irn_node_nr(block));
- lpp_dump(lpp, buf);
- dump_ir_block_graph(env->irg, "-assert");
+ DEBUG_ONLY(
+ if (firm_dbg_get_mask(env->dbg) >= 2) {
+ snprintf(buf, sizeof(buf), "lpp_block_%lu.infeasible.txt", get_irn_node_nr(block));
+ f = fopen(buf, "w");
+ lpp_dump_plain(lpp, f);
+ fclose(f);
+ snprintf(buf, sizeof(buf), "lpp_block_%lu.infeasible.mps", get_irn_node_nr(block));
+ lpp_dump(lpp, buf);
+ dump_ir_block_graph(env->irg, "-infeasible");
+ }
+ )
- assert(0 && "ILP solution is not feasible!");
+ ir_fprintf(stderr, "ILP found no solution within time (%+F, %+F), falling back to heuristics.\n", block, env->irg);
+ need_heur = 1;
}
DBG((env->dbg, LEVEL_1, "\nSolution:\n"));
DBG((env->dbg, LEVEL_1, "\tsend time: %g sec\n", lpp->send_time / 1000000.0));
DBG((env->dbg, LEVEL_1, "\treceive time: %g sec\n", lpp->recv_time / 1000000.0));
+ DBG((env->dbg, LEVEL_1, "\tmatrix: %u elements, density %.2f%%, size %.2fMB\n", lpp->n_elems, lpp->density, (double)lpp->matrix_mem / 1024.0 / 1024.0));
DBG((env->dbg, LEVEL_1, "\titerations: %d\n", lpp->iterations));
DBG((env->dbg, LEVEL_1, "\tsolution time: %g\n", lpp->sol_time));
DBG((env->dbg, LEVEL_1, "\tobjective function: %g\n", LPP_VALUE_IS_0(lpp->objval) ? 0.0 : lpp->objval));
}
/* apply solution */
- apply_solution(env, lpp, block);
+#ifdef FIRM_STATISTICS
+ if (be_stat_ev_is_active()) {
+ be_stat_ev("nodes", ba->block_last_idx);
+ be_stat_ev("vars", lpp ? lpp->var_next : 0);
+ be_stat_ev("csts", lpp ? lpp->cst_next : 0);
+ }
+#endif /* FIRM_STATISTICS */
+ if (need_heur) {
+#ifdef FIRM_STATISTICS
+ if (be_stat_ev_is_active()) {
+ be_stat_ev("time", -1);
+ be_stat_ev_dbl("opt", 0.0);
+ }
+#endif /* FIRM_STATISTICS */
+ list_sched_single_block(env->birg, block, env->be_opts);
+ }
+ else {
+#ifdef FIRM_STATISTICS
+ if (be_stat_ev_is_active()) {
+ if (lpp) {
+ double opt = lpp->sol_state == lpp_optimal ? 100.0 : 100.0 * lpp->best_bound / lpp->objval;
+ be_stat_ev_dbl("time", lpp->sol_time);
+ be_stat_ev_dbl("opt", opt);
+ }
+ else {
+ be_stat_ev_dbl("time", 0.0);
+ be_stat_ev_dbl("opt", 100.0);
+ }
+ }
+#endif /* FIRM_STATISTICS */
+ apply_solution(env, lpp, block);
+ }
if (lpp)
free_lpp(lpp);
/**
* Perform ILP scheduling on the given irg.
*/
-void be_ilp_sched(const be_irg_t *birg) {
+void be_ilp_sched(const be_irg_t *birg, be_options_t *be_opts) {
be_ilpsched_env_t env;
- const char *name = "be ilp scheduling";
- arch_isa_t *isa = birg->main_env->arch_env->isa;
- const ilp_sched_selector_t *sel = isa->impl->get_ilp_sched_selector(isa);
+ const char *name = "be ilp scheduling";
+ ir_graph *irg = be_get_birg_irg(birg);
+ const arch_env_t *arch_env = be_get_birg_arch_env(birg);
+ const arch_isa_t *isa = arch_env->isa;
+ const ilp_sched_selector_t *sel = isa->impl->get_ilp_sched_selector(isa);
FIRM_DBG_REGISTER(env.dbg, "firm.be.sched.ilp");
- //firm_dbg_set_mask(env.dbg, 31);
+#ifdef FIRM_STATISTICS
+ if (be_stat_ev_is_active()) {
+ be_stat_tags[STAT_TAG_CLS] = "ilpsched";
+ be_stat_ev_push(be_stat_tags, STAT_TAG_LAST, be_stat_file);
+ }
+#endif /* FIRM_STATISTICS */
+
+// firm_dbg_set_mask(env.dbg, 1);
- env.irg_env = be_ilp_sched_init_irg_ilp_schedule(sel, birg->irg);
+ env.irg_env = be_ilp_sched_init_irg_ilp_schedule(sel, irg);
env.sel = sel;
- env.irg = birg->irg;
- env.height = heights_new(birg->irg);
+ env.irg = irg;
+ env.height = heights_new(irg);
env.main_env = birg->main_env;
- env.arch_env = birg->main_env->arch_env;
- env.cpu = arch_isa_get_machine(birg->main_env->arch_env->isa);
+ env.arch_env = arch_env;
+ env.cpu = arch_isa_get_machine(arch_env->isa);
env.opts = &ilp_opts;
+ env.birg = birg;
+ env.be_opts = be_opts;
phase_init(&env.ph, name, env.irg, PHASE_DEFAULT_GROWTH, init_ilpsched_irn);
/* assign a unique per block number to all interesting nodes */
/* We refine the {ASAP(n), ALAP(n)} interval and fix the time steps for Projs and Keeps */
irg_walk_in_or_dep_blkwise_graph(env.irg, NULL, refine_asap_alap_times, &env);
- /* we don't need this information any longer */
- heights_free(env.height);
-
/* perform ILP scheduling */
- irg_block_walk_graph(env.irg, clear_unwanted_data, create_ilp, &env);
+ irg_block_walk_graph(env.irg, NULL, create_ilp, &env);
DEBUG_ONLY(
if (firm_dbg_get_mask(env.dbg)) {
}
);
+ /* free data allocated dynamically */
+ irg_block_walk_graph(env.irg, NULL, clear_unwanted_data, &env);
+
/* free all allocated object */
phase_free(&env.ph);
+ heights_free(env.height);
/* notify backend */
be_ilp_sched_finish_irg_ilp_schedule(sel, birg->irg, env.irg_env);
+
+#ifdef FIRM_STATISTICS
+ if (be_stat_ev_is_active()) {
+ be_stat_ev_pop();
+ }
+#endif /* FIRM_STATISTICS */
}
-#ifdef WITH_LIBCORE
/**
* Register ILP scheduler options.
*/
-void ilpsched_register_options(lc_opt_entry_t *grp) {
- static int run_once = 0;
- lc_opt_entry_t *sched_grp;
-
- if (! run_once) {
- run_once = 1;
- sched_grp = lc_opt_get_grp(grp, "ilpsched");
+void be_init_ilpsched(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, "ilpsched");
- lc_opt_add_table(sched_grp, ilpsched_option_table);
- }
+ lc_opt_add_table(sched_grp, ilpsched_option_table);
}
-#endif /* WITH_LIBCORE */
#else /* WITH_ILP */
-static int some_picky_compiler_do_not_allow_empty_files;
+static INLINE void some_picky_compiler_do_not_allow_empty_files(void)
+{}
#endif /* WITH_ILP */
projects / libfirm / blobdiff