*/
#include "config.h"
+#include "bessadestr.h"
+
#include "debug.h"
#include "set.h"
#include "pmap.h"
insert_all_perms_env_t *env = data;
be_chordal_env_t *chordal_env = env->chordal_env;
pmap *perm_map = env->perm_map;
- 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)) {
+ 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 (req->type & arch_register_req_type_ignore)
- continue;
-
hash = hash_irn(arg);
templ.arg = arg;
pp = set_find(arg_set, &templ, sizeof(templ), hash);
* interferes with the phi and must thus not be member of a
* 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, pred_bl, n_projs, in);
* 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(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);
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 */
/* process all arguments of the phi */
for (i = 0, max = get_irn_arity(phi); i < max; ++i) {
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 (req->type & arch_register_req_type_ignore)
- continue;
-
arg_block = get_Block_cfgpred_block(phi_block, i);
arg_reg = get_reg(arg);
DBG((dbg, LEVEL_1, " for %+F(%s) -- %+F(%s)\n", phi, phi_reg->name, arg, arg_reg->name));
+ if (phi_reg == arg_reg
+ || (arg_reg->type & arch_register_type_joker)
+ || (arg_reg->type & arch_register_type_virtual)) {
+ /* Phi and arg have the same register, so pin and continue */
+ pin_irn(arg, phi_block);
+ DBG((dbg, LEVEL_1, " arg has same reg: pin %+F(%s)\n", arg, get_reg(arg)->name));
+ continue;
+ }
+
if (be_values_interfere(lv, phi, arg)) {
/*
Insert a duplicate in arguments block,
*/
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
- ir_mode *m_phi = get_irn_mode(phi), *m_dupl = get_irn_mode(dupl);
-
- /*
- Conv signed <-> unsigned is killed on ia32
- check for: (both int OR both float) AND equal mode sizes
- */
- assert(((mode_is_int(m_phi) && mode_is_int(m_dupl)) ||
- (mode_is_float(m_phi) && mode_is_float(m_dupl))) &&
- (get_mode_size_bits(m_phi) == get_mode_size_bits(m_dupl)));
-#endif /* 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, NULL), dupl);
continue; /* with next argument */
}
- if (phi_reg == arg_reg) {
- /* Phi and arg have the same register, so pin and continue */
- pin_irn(arg, phi_block);
- DBG((dbg, LEVEL_1, " arg has same reg: pin %+F(%s)\n", arg, get_reg(arg)->name));
- continue;
- }
-
DBG((dbg, LEVEL_1, " they do not interfere\n"));
assert(is_Proj(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) &&
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 */
-#if 0
- ir_mode *m_phi = get_irn_mode(phi);
- ir_mode *m_dupl = get_irn_mode(dupl);
-
- /*
- Conv signed <-> unsigned is killed on ia32
- check for: (both int OR both float) AND equal mode sizes
- */
- assert(((mode_is_int(m_phi) && mode_is_int(m_dupl)) ||
- (mode_is_float(m_phi) && mode_is_float(m_dupl))) &&
- (get_mode_size_bits(m_phi) == get_mode_size_bits(m_dupl)));
-#endif /* if 0 */
-
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)
{
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);
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);
}
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