* Copyright: (c) Universitaet Karlsruhe
* Licence: This file protected by GPL - GNU GENERAL PUBLIC LICENSE.
*/
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+#ifdef HAVE_ALLOCA_H
#include <alloca.h>
+#endif
+
+#ifdef HAVE_MALLOC_H
+#include <malloc.h>
+#endif
+
#include "obst.h"
#include "set.h"
#include "pset.h"
#include "beirgmod.h"
#include "belive_t.h"
#include "benode_t.h"
+#include "bechordal_t.h"
#define DBG_SPILL 1
#define DBG_WSETS 2
static INLINE void workset_insert(workset_t *ws, ir_node *val) {
int i;
/* check for current regclass */
- if (arch_get_irn_reg_class(ws->bel->arch, val, 0) != ws->bel->cls) {
+ if (arch_get_irn_reg_class(ws->bel->arch, val, -1) != ws->bel->cls) {
DBG((dbg, DBG_DECIDE, "Dropped %+F\n", val));
return;
}
ir_node *val = vals[o];
DBG((dbg, DBG_TRACE, "Bulk insert %+F\n", val));
/* check for current regclass */
- if (arch_get_irn_reg_class(ws->bel->arch, val, 0) != ws->bel->cls) {
+ if (arch_get_irn_reg_class(ws->bel->arch, val, -1) != ws->bel->cls) {
DBG((dbg, DBG_TRACE, "Wrong reg class\n"));
goto no_insert;
}
static int is_mem_phi(const ir_node *irn, void *data) {
+ workset_t *sws;
ir_node *blk = get_nodes_block(irn);
+
DBG((dbg, DBG_SPILL, "Is %+F a mem-phi?\n", irn));
- workset_t *sws = ((block_info_t *)get_irn_link(blk))->ws_start;
+ sws = ((block_info_t *) get_irn_link(blk))->ws_start;
DBG((dbg, DBG_SPILL, " %d\n", !workset_contains(sws, irn)));
return !workset_contains(sws, irn);
}
first = sched_first(blk);
count = 0;
sched_foreach(blk, irn)
- if (is_Phi(irn) && arch_get_irn_reg_class(bel->arch, irn, 0) == bel->cls) {
+ if (is_Phi(irn) && arch_get_irn_reg_class(bel->arch, irn, -1) == bel->cls) {
loc.irn = irn;
loc.time = be_get_next_use(bel->uses, first, 0, irn, 0);
DBG((dbg, DBG_START, " %+F next-use %d\n", loc.irn, loc.time));
break;
live_foreach(blk, li)
- if (live_is_in(li) && arch_get_irn_reg_class(bel->arch, li->irn, 0) == bel->cls) {
+ if (live_is_in(li) && arch_get_irn_reg_class(bel->arch, li->irn, -1) == bel->cls) {
loc.irn = (ir_node *)li->irn;
loc.time = be_get_next_use(bel->uses, first, 0, li->irn, 0);
DBG((dbg, DBG_START, " %+F next-use %d\n", loc.irn, loc.time));
}
/**
- * 'decide' is block-local and makes assumtions
+ * 'decide' is block-local and makes assumptions
* about the set of live-ins. Thus we must adapt the
* live-outs to the live-ins at each block-border.
*/
static void fix_block_borders(ir_node *blk, void *env) {
+ workset_t *wsb;
belady_env_t *bel = env;
int i, max;
DBG((dbg, DBG_FIX, "\n"));
DBG((dbg, DBG_FIX, "Fixing %+F\n", blk));
- workset_t *wsb = ((block_info_t *)get_irn_link(blk))->ws_start;
+ wsb = ((block_info_t *)get_irn_link(blk))->ws_start;
/* process all pred blocks */
for (i=0, max=get_irn_arity(blk); i<max; ++i) {
irg_walk_graph(irg, rescue_used_reloads, NULL, bel->reloads);
for(irn = pset_first(bel->reloads); irn; irn = pset_next(bel->reloads)) {
+ ir_node *spill;
DBG((dbg, DBG_SPILL, "Removing %+F before %+F in %+F\n", irn, sched_next(irn), get_nodes_block(irn)));
- ir_node *spill = get_irn_n(irn, 0);
+ spill = get_irn_n(irn, 0);
- /* remove reaload */
+ /* remove reload */
set_irn_n(irn, 0, new_Bad());
sched_remove(irn);
/* if spill not used anymore, remove it too
* test of regclass is necessary since spill may be a phi-M */
- if (get_irn_n_edges(spill) == 0 && bel->cls == arch_get_irn_reg_class(bel->arch, spill, 0)) {
+ if (get_irn_n_edges(spill) == 0 && bel->cls == arch_get_irn_reg_class(bel->arch, spill, -1)) {
set_irn_n(spill, 0, new_Bad());
sched_remove(spill);
}
}
}
-void be_spill_belady(const be_main_session_env_t *session, const arch_register_class_t *cls) {
+void be_spill_belady(const be_chordal_env_t *chordal_env) {
+ belady_env_t bel;
+
dbg = firm_dbg_register("ir.be.spillbelady");
firm_dbg_set_mask(dbg, DEBUG_LVL);
/* init belady env */
- belady_env_t *bel = alloca(sizeof(*bel));
- obstack_init(&bel->ob);
- bel->factory = session->main_env->node_factory;
- bel->arch = session->main_env->arch_env;
- bel->cls = cls;
- bel->n_regs = arch_register_class_n_regs(cls);
- bel->ws = new_workset(&bel->ob, bel);
- bel->uses = be_begin_uses(session->irg, session->main_env->arch_env, cls);
- bel->senv = be_new_spill_env(dbg, session, cls, is_mem_phi, NULL);
- bel->reloads = pset_new_ptr_default();
+ obstack_init(&bel.ob);
+ bel.factory = chordal_env->main_env->node_factory;
+ bel.arch = chordal_env->main_env->arch_env;
+ bel.cls = chordal_env->cls;
+ bel.n_regs = arch_register_class_n_regs(bel.cls);
+ bel.ws = new_workset(&bel.ob, &bel);
+ bel.uses = be_begin_uses(chordal_env->irg, chordal_env->main_env->arch_env, bel.cls);
+ bel.senv = be_new_spill_env(dbg, chordal_env, is_mem_phi, NULL);
+ bel.reloads = pset_new_ptr_default();
/* do the work */
- irg_block_walk_graph(session->irg, decide, NULL, bel);
- irg_block_walk_graph(session->irg, fix_block_borders, NULL, bel);
- be_insert_spills_reloads(bel->senv, bel->reloads);
- remove_unused_reloads(session->irg, bel);
+ irg_block_walk_graph(chordal_env->irg, decide, NULL, &bel);
+ irg_block_walk_graph(chordal_env->irg, fix_block_borders, NULL, &bel);
+ be_insert_spills_reloads(bel.senv, bel.reloads);
+ remove_unused_reloads(chordal_env->irg, &bel);
/* clean up */
- del_pset(bel->reloads);
- be_delete_spill_env(bel->senv);
- be_end_uses(bel->uses);
- obstack_free(&bel->ob, NULL);
+ del_pset(bel.reloads);
+ be_delete_spill_env(bel.senv);
+ be_end_uses(bel.uses);
+ obstack_free(&bel.ob, NULL);
}
projects / libfirm / blobdiff