* @date 29.11.2005
* @version $Id$
*/
-#ifdef HAVE_CONFIG_H
#include "config.h"
-#endif
#include <stdlib.h>
#include <time.h>
#include "list.h"
#include "bitset.h"
#include "iterator.h"
-#include "firm_config.h"
#include "lc_opts.h"
#include "lc_opts_enum.h"
#include "irnode.h"
#include "ircons.h"
#include "debug.h"
-#include "xmalloc.h"
#include "execfreq.h"
#include "iredges_t.h"
#include "bechordal_t.h"
#include "beabi.h"
-#include "bejavacoal.h"
#include "beutil.h"
#include "besched.h"
#include "besched_t.h"
#include "bespilloptions.h"
#include "belower.h"
-#ifdef WITH_ILP
-#include "bespillremat.h"
-#endif /* WITH_ILP */
-
-#include "bejavacoal.h"
#include "becopystat.h"
#include "becopyopt.h"
#include "bessadestr.h"
double pre_spill_cost;
} post_spill_env_t;
-static be_options_t *main_opts;
-
static const lc_opt_enum_int_items_t lower_perm_items[] = {
{ "copy", BE_CH_LOWER_PERM_COPY },
{ "swap", BE_CH_LOWER_PERM_SWAP },
static const lc_opt_table_entry_t be_chordal_options[] = {
LC_OPT_ENT_ENUM_PTR ("perm", "perm lowering options", &lower_perm_var),
LC_OPT_ENT_ENUM_MASK("dump", "select dump phases", &dump_var),
- LC_OPT_ENT_ENUM_PTR ("vrfy", "verify options", &be_ch_vrfy_var),
+ LC_OPT_ENT_ENUM_PTR ("verify", "verify options", &be_ch_vrfy_var),
LC_OPT_LAST
};
}
/**
- * Checks for every reload if it's user can perform the load on itself.
+ * Checks for every reload if its user can perform the load on itself.
*/
-static void memory_operand_walker(ir_node *irn, void *env) {
- be_chordal_env_t *cenv = env;
- const arch_env_t *aenv = cenv->birg->main_env->arch_env;
+static void memory_operand_walker(ir_node *irn, void *env)
+{
const ir_edge_t *edge, *ne;
ir_node *block;
ir_node *spill;
+ (void)env;
+
if (! be_is_Reload(irn))
return;
assert(src && "outedges broken!");
- if (get_nodes_block(src) == block && arch_possible_memory_operand(aenv, src, pos)) {
- arch_perform_memory_operand(aenv, src, spill, pos);
+ if (get_nodes_block(src) == block && arch_possible_memory_operand(src, pos)) {
+ arch_perform_memory_operand(src, spill, pos);
}
}
/**
* Starts a walk for memory operands if supported by the backend.
*/
-static INLINE void check_for_memory_operands(be_chordal_env_t *chordal_env) {
- irg_walk_graph(chordal_env->irg, NULL, memory_operand_walker, chordal_env);
-}
-
-/**
- * Sorry for doing stats again...
- */
-typedef struct _node_stat_t {
- unsigned int n_phis; /**< Phis of the current register class. */
- unsigned int n_mem_phis; /**< Memory Phis (Phis with spill operands). */
- unsigned int n_copies; /**< Copies */
- unsigned int n_perms; /**< Perms */
- unsigned int n_spills; /**< Spill nodes */
- unsigned int n_reloads; /**< Reloads */
-} node_stat_t;
-
-struct node_stat_walker {
- node_stat_t *stat;
- const arch_env_t *arch_env;
- bitset_t *mem_phis;
- const arch_register_class_t *cls;
-};
-
-static void node_stat_walker(ir_node *irn, void *data)
+static inline void check_for_memory_operands(ir_graph *irg)
{
- struct node_stat_walker *env = data;
- const arch_env_t *aenv = env->arch_env;
-
- if (arch_irn_consider_in_reg_alloc(aenv, env->cls, irn)) {
-
- /* if the node is a normal phi */
- if(is_Phi(irn))
- env->stat->n_phis++;
-
- else {
- arch_irn_class_t classify = arch_irn_classify(aenv, irn);
-
- if(classify & arch_irn_class_spill)
- ++env->stat->n_spills;
- if(classify & arch_irn_class_reload)
- ++env->stat->n_reloads;
- if(classify & arch_irn_class_copy)
- ++env->stat->n_copies;
- if(classify & arch_irn_class_perm)
- ++env->stat->n_perms;
- }
- }
-
- /* a mem phi is a PhiM with a mem phi operand or a Spill operand */
- /*else*/ if(is_Phi(irn) && get_irn_mode(irn) == mode_M) {
- int i;
-
- for(i = get_irn_arity(irn) - 1; i >= 0; --i) {
- ir_node *op = get_irn_n(irn, i);
-
- if((is_Phi(op) && bitset_contains_irn(env->mem_phis, op)) || (arch_irn_classify(aenv, op) & arch_irn_class_spill)) {
- bitset_add_irn(env->mem_phis, irn);
- env->stat->n_mem_phis++;
- break;
- }
- }
- }
+ irg_walk_graph(irg, NULL, memory_operand_walker, NULL);
}
-static void node_stats(be_irg_t *birg, const arch_register_class_t *cls, node_stat_t *stat)
-{
- struct node_stat_walker env;
-
- memset(stat, 0, sizeof(stat[0]));
- env.arch_env = birg->main_env->arch_env;
- env.mem_phis = bitset_irg_malloc(birg->irg);
- env.stat = stat;
- env.cls = cls;
- irg_walk_graph(birg->irg, NULL, node_stat_walker, &env);
- bitset_free(env.mem_phis);
-}
-static void insn_count_walker(ir_node *irn, void *data)
-{
- int *cnt = data;
-
- switch(get_irn_opcode(irn)) {
- case iro_Proj:
- case iro_Phi:
- case iro_Start:
- case iro_End:
- break;
- default:
- (*cnt)++;
- }
-}
-
-static unsigned int count_insns(ir_graph *irg)
-{
- int cnt = 0;
- irg_walk_graph(irg, insn_count_walker, NULL, &cnt);
- return cnt;
-}
+static be_node_stats_t last_node_stats;
/**
* Perform things which need to be done per register class before spilling.
be_chordal_env_t *chordal_env = &pse->cenv;
be_irg_t *birg = pse->birg;
ir_graph *irg = be_get_birg_irg(birg);
- const be_main_env_t *main_env = birg->main_env;
- node_stat_t node_stat;
pse->cls = cls;
chordal_env->cls = cls;
be_assure_liveness(birg);
be_liveness_assure_chk(be_get_birg_liveness(birg));
- stat_ev_ctx_push_str("bechordal_cls", pse->cls->name);
- stat_ev_do(node_stats(birg, pse->cls, &node_stat));
- stat_ev_do(pse->pre_spill_cost = be_estimate_irg_costs(irg, main_env->arch_env, birg->exec_freq));
- stat_ev_dbl("phis_before_spill", node_stat.n_phis);
+ stat_ev_do(pse->pre_spill_cost = be_estimate_irg_costs(irg, birg->exec_freq));
/* put all ignore registers into the ignore register set. */
be_put_ignore_regs(birg, pse->cls, chordal_env->ignore_colors);
BE_TIMER_POP(t_ra_constr);
dump(BE_CH_DUMP_CONSTR, birg->irg, pse->cls, "-constr-pre", dump_ir_block_graph_sched);
-
- stat_ev_ctx_pop("bechordal_cls");
}
/**
be_chordal_env_t *chordal_env = &pse->cenv;
be_irg_t *birg = pse->birg;
ir_graph *irg = birg->irg;
- const be_main_env_t *main_env = birg->main_env;
- node_stat_t node_stat;
- int colors_n = arch_register_class_n_regs(chordal_env->cls);
+ int colors_n = arch_register_class_n_regs(chordal_env->cls);
int allocatable_regs = colors_n - be_put_ignore_regs(birg, chordal_env->cls, NULL);
/* some special classes contain only ignore regs, no work to be done */
if (allocatable_regs > 0) {
-
- stat_ev_ctx_push_str("bechordal_cls", pse->cls->name);
- stat_ev_do(node_stats(birg, pse->cls, &node_stat));
- stat_ev_dbl("phis_after_spill", node_stat.n_phis);
- stat_ev_dbl("mem_phis", node_stat.n_mem_phis);
- stat_ev_dbl("reloads", node_stat.n_reloads);
- stat_ev_dbl("spills", node_stat.n_spills);
- stat_ev_dbl("spillcosts", be_estimate_irg_costs(irg, main_env->arch_env, birg->exec_freq) - pse->pre_spill_cost);
+ stat_ev_dbl("bechordal_spillcosts", be_estimate_irg_costs(irg, birg->exec_freq) - pse->pre_spill_cost);
/*
If we have a backend provided spiller, post spill is
called in a loop after spilling for each register class.
But we only need to fix stack nodes once in this case.
*/
- BE_TIMER_PUSH(t_ra_spill);
- check_for_memory_operands(chordal_env);
+ BE_TIMER_PUSH(t_ra_spill_apply);
+ check_for_memory_operands(irg);
if (iteration == 0) {
be_abi_fix_stack_nodes(birg->abi);
}
- BE_TIMER_POP(t_ra_spill);
+ BE_TIMER_POP(t_ra_spill_apply);
- BE_TIMER_PUSH(t_verify);
/* verify schedule and register pressure */
+ BE_TIMER_PUSH(t_verify);
if (chordal_env->opts->vrfy_option == BE_CH_VRFY_WARN) {
be_verify_schedule(birg);
be_verify_register_pressure(birg, pse->cls, irg);
chordal_env->ifg = be_create_ifg(chordal_env);
BE_TIMER_POP(t_ra_ifg);
- {
- be_ifg_stat_t stat;
+ stat_ev_if {
+ be_ifg_stat_t stat;
+ be_node_stats_t node_stats;
- stat_ev_do(be_ifg_stat(birg, chordal_env->ifg, &stat));
- stat_ev_dbl("ifg_nodes", stat.n_nodes);
- stat_ev_dbl("ifg_edges", stat.n_edges);
- stat_ev_dbl("ifg_comps", stat.n_comps);
+ be_ifg_stat(birg, chordal_env->ifg, &stat);
+ stat_ev_dbl("bechordal_ifg_nodes", stat.n_nodes);
+ stat_ev_dbl("bechordal_ifg_edges", stat.n_edges);
+ stat_ev_dbl("bechordal_ifg_comps", stat.n_comps);
- stat_ev_do(node_stats(birg, pse->cls, &node_stat));
- stat_ev_dbl("perms_before_coal", node_stat.n_perms);
- stat_ev_dbl("copies_before_coal", node_stat.n_copies);
+ be_collect_node_stats(&node_stats, birg);
+ be_subtract_node_stats(&node_stats, &last_node_stats);
+
+ stat_ev_dbl("bechordal_perms_before_coal",
+ node_stats[BE_STAT_PERMS]);
+ stat_ev_dbl("bechordal_copies_before_coal",
+ node_stats[BE_STAT_COPIES]);
}
/* copy minimization */
/* ssa destruction */
BE_TIMER_PUSH(t_ra_ssa);
- stat_ev_ctx_push_str("berachordal_phase", "ssadestr");
be_ssa_destruction(chordal_env);
- stat_ev_ctx_pop("berachordal_phase");
BE_TIMER_POP(t_ra_ssa);
dump(BE_CH_DUMP_SSADESTR, irg, pse->cls, "-ssadestr", dump_ir_block_graph_sched);
BE_TIMER_POP(t_verify);
}
- stat_ev_do(node_stats(birg, pse->cls, &node_stat));
- stat_ev_dbl("perms_after_coal", node_stat.n_perms);
- stat_ev_dbl("copies_after_coal", node_stat.n_copies);
- stat_ev_ctx_pop("bechordal_cls");
-
/* the ifg exists only if there are allocatable regs */
be_ifg_free(chordal_env->ifg);
}
*/
static void be_ra_chordal_main(be_irg_t *birg)
{
- const be_main_env_t *main_env = birg->main_env;
- const arch_env_t *arch_env = main_env->arch_env;
- ir_graph *irg = birg->irg;
- int j, m;
- be_chordal_env_t chordal_env;
- struct obstack obst;
-
- main_opts = main_env->options;
+ const arch_env_t *arch_env = birg->main_env->arch_env;
+ ir_graph *irg = birg->irg;
+ int j;
+ int m;
+ be_chordal_env_t chordal_env;
+ struct obstack obst;
BE_TIMER_PUSH(t_ra_other);
BE_TIMER_PUSH(t_ra_prolog);
- be_assure_dom_front(birg);
be_assure_liveness(birg);
chordal_env.obst = &obst;
BE_TIMER_POP(t_ra_prolog);
stat_ev_if {
- be_stat_ev("insns_before", count_insns(irg));
+ be_collect_node_stats(&last_node_stats, birg);
}
if (! arch_code_generator_has_spiller(birg->cg)) {
continue;
+ stat_ev_ctx_push_str("bechordal_cls", cls->name);
+
+ stat_ev_if {
+ be_do_stat_reg_pressure(birg, cls);
+ }
+
memcpy(&pse.cenv, &chordal_env, sizeof(chordal_env));
pse.birg = birg;
pre_spill(&pse, cls);
dump_ir_block_graph_sched);
post_spill(&pse, 0);
+
+ stat_ev_if {
+ be_node_stats_t node_stats;
+
+ be_collect_node_stats(&node_stats, birg);
+ be_subtract_node_stats(&node_stats, &last_node_stats);
+ be_emit_node_stats(&node_stats, "bechordal_");
+
+ be_copy_node_stats(&last_node_stats, &node_stats);
+ stat_ev_ctx_pop("bechordal_cls");
+ }
}
} else {
post_spill_env_t *pse;
- /* the backend has it's own spiller */
+ /* the backend has its own spiller */
m = arch_env_get_n_reg_class(arch_env);
- pse = alloca(m * sizeof(pse[0]));
+ pse = ALLOCAN(post_spill_env_t, m);
for (j = 0; j < m; ++j) {
memcpy(&pse[j].cenv, &chordal_env, sizeof(chordal_env));
}
BE_TIMER_PUSH(t_verify);
- be_verify_register_allocation(birg);
+ if (chordal_env.opts->vrfy_option == BE_CH_VRFY_WARN) {
+ be_verify_register_allocation(birg);
+ } else if(chordal_env.opts->vrfy_option == BE_CH_VRFY_ASSERT) {
+ assert(be_verify_register_allocation(birg)
+ && "Register allocation invalid");
+ }
BE_TIMER_POP(t_verify);
BE_TIMER_PUSH(t_ra_epilog);
BE_TIMER_POP(t_ra_epilog);
BE_TIMER_POP(t_ra_other);
-
- stat_ev_if {
- be_stat_ev("insns_after", count_insns(irg));
- }
}
static be_ra_t be_ra_chordal_allocator = {
projects / libfirm / blobdiff