* @date 25.05.2005
* @version $Id$
*/
-#ifdef HAVE_CONFIG_H
#include "config.h"
-#endif
+
+#include "bessadestr.h"
#include "debug.h"
#include "set.h"
#include "be_t.h"
#include "beutil.h"
#include "bechordal_t.h"
-#include "bearch_t.h"
+#include "bearch.h"
#include "belive_t.h"
-#include "benode_t.h"
-#include "besched_t.h"
+#include "benode.h"
+#include "besched.h"
#include "bestatevent.h"
-#include "beirg_t.h"
+#include "beirg.h"
#include "beintlive_t.h"
DEBUG_ONLY(static firm_dbg_module_t *dbg = NULL;)
-#define get_chordal_arch(ce) ((ce)->birg->main_env->arch_env)
-#define get_reg(irn) arch_get_irn_register(get_chordal_arch(chordal_env), irn)
-#define set_reg(irn, reg) arch_set_irn_register(get_chordal_arch(chordal_env), irn, reg)
-
-#define is_Perm(irn) (arch_irn_class_is(arch_env, irn, perm))
-#define get_reg_cls(irn) (arch_get_irn_reg_class(arch_env, irn, -1))
-#define is_curr_reg_class(irn) (get_reg_cls(p) == chordal_env->cls)
+#define get_reg(irn) arch_get_irn_register(irn)
+#define set_reg(irn, reg) arch_set_irn_register(irn, reg)
-static void clear_link(ir_node *irn, void *data) {
+static void clear_link(ir_node *irn, void *data)
+{
(void) data;
set_irn_link(irn, NULL);
}
* - have the current register class
* The list is rooted at get_irn_link(BB).
*/
-static void collect_phis_walker(ir_node *irn, void *data) {
+static void collect_phis_walker(ir_node *irn, void *data)
+{
be_chordal_env_t *env = data;
if (is_Phi(irn) && chordal_has_class(env, irn)) {
ir_node *bl = get_nodes_block(irn);
ir_node *proj; /**< The proj created for @p arg. */
} perm_proj_t;
-static int cmp_perm_proj(const void *a, const void *b, size_t n) {
+static int cmp_perm_proj(const void *a, const void *b, size_t n)
+{
const perm_proj_t *p = a;
const perm_proj_t *q = b;
(void) n;
/**
* Insert Perms in all predecessors of a block containing a phi
*/
-static void insert_all_perms_walker(ir_node *bl, void *data) {
+static void insert_all_perms_walker(ir_node *bl, void *data)
+{
insert_all_perms_env_t *env = data;
be_chordal_env_t *chordal_env = env->chordal_env;
pmap *perm_map = env->perm_map;
- ir_graph *irg = chordal_env->irg;
- be_lv_t *lv = chordal_env->birg->lv;
+ be_lv_t *lv = be_get_irg_liveness(chordal_env->irg);
int i, n;
assert(is_Block(bl));
/* If the link flag is NULL, this block has no phis. */
- if(!get_irn_link(bl))
+ if (!get_irn_link(bl))
return;
/* Look at all predecessors of the phi block */
- for(i = 0, n = get_irn_arity(bl); i < n; ++i) {
+ for (i = 0, n = get_irn_arity(bl); i < n; ++i) {
ir_node *phi, *perm, *insert_after, **in;
perm_proj_t *pp;
set *arg_set = new_set(cmp_perm_proj, chordal_env->cls->n_regs);
* Note that all phis in the list are in the same
* register class by construction.
*/
- for(phi = get_irn_link(bl); phi; phi = get_irn_link(phi)) {
- ir_node *arg = get_irn_n(phi, i);
- unsigned hash = hash_irn(arg);
- perm_proj_t templ;
+ for (phi = get_irn_link(bl); phi; phi = get_irn_link(phi)) {
+ ir_node *arg = get_irn_n(phi, i);
+ const arch_register_req_t *req = arch_get_register_req_out(arg);
+ unsigned hash;
+ perm_proj_t templ;
- if (arch_irn_is(chordal_env->birg->main_env->arch_env, arg, ignore))
+ if (req->type & arch_register_req_type_ignore)
continue;
+ hash = hash_irn(arg);
templ.arg = arg;
pp = set_find(arg_set, &templ, sizeof(templ), hash);
* create one. The only restriction is, that the phi argument
* may not be live in at the current block, since this argument
* interferes with the phi and must thus not be member of a
- * Perm. A copy will be inserted for this argument alter on.
+ * Perm. A copy will be inserted for this argument later on.
*/
- if(!pp && !be_is_live_in(lv, bl, arg)) {
+ if (!pp && !be_is_live_in(lv, bl, arg)) {
templ.pos = n_projs++;
set_insert(arg_set, &templ, sizeof(templ), hash);
}
* above in the arg_set and insert it into the schedule.
*/
in = XMALLOCN(ir_node*, n_projs);
- for(pp = set_first(arg_set); pp; pp = set_next(arg_set))
+ for (pp = set_first(arg_set); pp; pp = set_next(arg_set))
in[pp->pos] = pp->arg;
- perm = be_new_Perm(chordal_env->cls, irg, pred_bl, n_projs, in);
+ perm = be_new_Perm(chordal_env->cls, pred_bl, n_projs, in);
be_stat_ev("phi_perm", n_projs);
- insert_after = sched_skip(sched_last(pred_bl), 0, sched_skip_cf_predicator, &chordal_env->birg->main_env->arch_env);
+ insert_after = sched_skip(sched_last(pred_bl), 0, sched_skip_cf_predicator, NULL);
sched_add_after(insert_after, perm);
/*
* arguments to the projs (new phi arguments).
*/
insert_after = perm;
- for(pp = set_first(arg_set); pp; pp = set_next(arg_set)) {
- ir_node *proj = new_r_Proj(irg, pred_bl, perm, get_irn_mode(pp->arg), pp->pos);
+ for (pp = set_first(arg_set); pp; pp = set_next(arg_set)) {
+ ir_node *proj = new_r_Proj(perm, get_irn_mode(pp->arg), pp->pos);
pp->proj = proj;
assert(get_reg(pp->arg));
set_reg(proj, get_reg(pp->arg));
/*
* Set the phi nodes to their new arguments: The Projs of the Perm
*/
- for(phi = get_irn_link(bl); phi; phi = get_irn_link(phi)) {
+ for (phi = get_irn_link(bl); phi; phi = get_irn_link(phi)) {
perm_proj_t templ;
templ.arg = get_irn_n(phi, i);
* Adjusts the register allocation for the (new) phi-operands
* and insert duplicates iff necessary.
*/
-static void set_regs_or_place_dupls_walker(ir_node *bl, void *data) {
+static void set_regs_or_place_dupls_walker(ir_node *bl, void *data)
+{
be_chordal_env_t *chordal_env = data;
- be_lv_t *lv = chordal_env->birg->lv;
+ be_lv_t *lv = be_get_irg_liveness(chordal_env->irg);
ir_node *phi;
/* Consider all phis of this block */
for (phi = get_irn_link(bl); phi; phi = get_irn_link(phi)) {
- int i, max;
- ir_node *arg, *phi_block, *arg_block;
- const arch_register_t *phi_reg, *arg_reg;
- const arch_register_class_t *cls;
+ ir_node *phi_block = get_nodes_block(phi);
+ const arch_register_t *phi_reg = get_reg(phi);
+ const arch_register_class_t *cls = phi_reg->reg_class;
+ int max;
+ int i;
assert(is_Phi(phi) && "Can only handle phi-destruction :)");
- phi_block = get_nodes_block(phi);
- phi_reg = get_reg(phi);
- cls = arch_get_irn_reg_class(get_chordal_arch(chordal_env), phi, -1);
-
/* process all arguments of the phi */
for (i = 0, max = get_irn_arity(phi); i < max; ++i) {
- arg = get_irn_n(phi, i);
- arg_block = get_Block_cfgpred_block(phi_block, i);
- arg_reg = get_reg(arg);
+ ir_node *arg = get_irn_n(phi, i);
+ const arch_register_req_t *req = arch_get_register_req_out(arg);
+ const arch_register_t *arg_reg;
+ ir_node *arg_block;
- if (arch_irn_is(chordal_env->birg->main_env->arch_env, arg, ignore))
+ if (req->type & arch_register_req_type_ignore)
continue;
+ arg_block = get_Block_cfgpred_block(phi_block, i);
+ arg_reg = get_reg(arg);
+
assert(arg_reg && "Register must be set while placing perms");
DBG((dbg, LEVEL_1, " for %+F(%s) -- %+F(%s)\n", phi, phi_reg->name, arg, arg_reg->name));
- if (values_interfere(chordal_env->birg, phi, arg)) {
+ if (be_values_interfere(lv, phi, arg)) {
/*
Insert a duplicate in arguments block,
make it the new phi arg,
insert it into schedule,
pin it
*/
- ir_node *dupl = be_new_Copy(cls, chordal_env->irg, arg_block, arg);
+ ir_node *dupl = be_new_Copy(cls, arg_block, arg);
/* this is commented out because it will fail in case of unknown float */
#if 0
set_irn_n(phi, i, dupl);
set_reg(dupl, phi_reg);
- sched_add_after(sched_skip(sched_last(arg_block), 0, sched_skip_cf_predicator, &chordal_env->birg->main_env->arch_env), dupl);
+ sched_add_after(sched_skip(sched_last(arg_block), 0, sched_skip_cf_predicator, NULL), dupl);
pin_irn(dupl, phi_block);
be_liveness_introduce(lv, dupl);
be_liveness_update(lv, arg);
DBG((dbg, LEVEL_1, " searching for phi with same arg having args register\n"));
- for(other_phi = get_irn_link(phi_block); other_phi; other_phi = get_irn_link(other_phi)) {
+ for (other_phi = get_irn_link(phi_block); other_phi; other_phi = get_irn_link(other_phi)) {
assert(is_Phi(other_phi) &&
get_nodes_block(phi) == get_nodes_block(other_phi) &&
insert it into schedule,
pin it
*/
- ir_node *perm = get_Proj_pred(arg);
- ir_node *dupl = be_new_Copy(cls, chordal_env->irg, arg_block, arg);
+ ir_node *perm = get_Proj_pred(arg);
+ ir_node *dupl = be_new_Copy(cls, arg_block, arg);
ir_node *ins;
/* this is commented out because it will fail in case of unknown float */
set_irn_n(phi, i, dupl);
set_reg(dupl, phi_reg);
/* skip the Perm's Projs and insert the copies behind. */
- for(ins = sched_next(perm); is_Proj(ins); ins = sched_next(ins));
+ for (ins = sched_next(perm); is_Proj(ins); ins = sched_next(ins)) {
+ }
sched_add_before(ins, dupl);
pin_irn(dupl, phi_block);
be_liveness_introduce(lv, dupl);
}
}
-void be_ssa_destruction(be_chordal_env_t *chordal_env) {
+void be_ssa_destruction(be_chordal_env_t *chordal_env)
+{
insert_all_perms_env_t insert_perms_env;
- pmap *perm_map = pmap_create();
- ir_graph *irg = chordal_env->irg;
- be_lv_t *lv = be_assure_liveness(chordal_env->birg);
+ pmap *perm_map = pmap_create();
+ ir_graph *irg = chordal_env->irg;
+ be_lv_t *lv = be_assure_liveness(irg);
FIRM_DBG_REGISTER(dbg, "ir.be.ssadestr");
be_liveness_invalidate(lv);
if (chordal_env->opts->dump_flags & BE_CH_DUMP_SSADESTR)
- be_dump(irg, "-ssa_destr_perms_placed", dump_ir_block_graph_sched);
+ dump_ir_graph(irg, "ssa_destr_perms_placed");
be_liveness_assure_chk(lv);
DBG((dbg, LEVEL_1, "Setting regs and placing dupls...\n"));
irg_block_walk_graph(irg, set_regs_or_place_dupls_walker, NULL, chordal_env);
- /* TODO: unfortunaltely updating doesn't work yet. */
+ /* TODO: unfortunately updating doesn't work yet. */
be_liveness_invalidate(lv);
if (chordal_env->opts->dump_flags & BE_CH_DUMP_SSADESTR)
- be_dump(irg, "-ssa_destr_regs_set", dump_ir_block_graph_sched);
+ dump_ir_graph(irg, "ssa_destr_regs_set");
pmap_destroy(perm_map);
}
-static void ssa_destruction_check_walker(ir_node *bl, void *data) {
- be_chordal_env_t *chordal_env = data;
+static void ssa_destruction_check_walker(ir_node *bl, void *data)
+{
ir_node *phi;
int i, max;
+ (void)data;
for (phi = get_irn_link(bl); phi; phi = get_irn_link(phi)) {
const arch_register_t *phi_reg, *arg_reg;
phi_reg = get_reg(phi);
/* iterate over all args of phi */
for (i = 0, max = get_irn_arity(phi); i < max; ++i) {
- ir_node *arg = get_irn_n(phi, i);
+ ir_node *arg = get_irn_n(phi, i);
+ const arch_register_req_t *req = arch_get_register_req_out(arg);
- if (arch_irn_is(chordal_env->birg->main_env->arch_env, arg, ignore))
+ if (req->type & arch_register_req_type_ignore)
continue;
arg_reg = get_reg(arg);
}
}
-void be_ssa_destruction_check(be_chordal_env_t *chordal_env) {
- irg_block_walk_graph(chordal_env->irg, ssa_destruction_check_walker, NULL, chordal_env);
+void be_ssa_destruction_check(be_chordal_env_t *chordal_env)
+{
+ irg_block_walk_graph(chordal_env->irg, ssa_destruction_check_walker, NULL, NULL);
}
projects / libfirm / blobdiff