#include "array_t.h"
#include "bearch.h"
+#include "beirg.h"
#include "belower.h"
#include "benode.h"
#include "besched.h"
typedef enum perm_type_t {
PERM_CYCLE,
PERM_CHAIN,
- PERM_SWAP,
- PERM_COPY
} perm_type_t;
/** Structure to represent cycles or chains in a Perm. */
* IN_2 = in node with register i + 1
* OUT_1 = out node with register i + 1
* OUT_2 = out node with register i */
+ ir_node *cpyxchg;
if (cycle.type == PERM_CYCLE && !do_copy) {
ir_node *in[2];
- ir_node *cpyxchg;
in[0] = arg1;
in[1] = arg2;
arch_set_irn_register(res2, cycle.elems[i + 1]);
arch_set_irn_register(res1, cycle.elems[i]);
- /* insert the copy/exchange node in schedule after the magic schedule node (see above) */
- sched_add_after(skip_Proj(sched_point), cpyxchg);
-
DB((dbg, LEVEL_1, "replacing %+F with %+F, placed new node after %+F\n", irn, cpyxchg, sched_point));
-
- /* set the new scheduling point */
- sched_point = res1;
} else {
- ir_node *cpyxchg;
-
DB((dbg, LEVEL_1, "%+F creating copy node (%+F, %s) -> (%+F, %s)\n",
irn, arg1, cycle.elems[i]->name, res2, cycle.elems[i + 1]->name));
/* exchange copy node and proj */
exchange(res2, cpyxchg);
+ }
- /* insert the copy/exchange node in schedule after the magic schedule node (see above) */
- sched_add_after(skip_Proj(sched_point), cpyxchg);
+ /* insert the copy/exchange node in schedule after the magic schedule node (see above) */
+ sched_add_after(sched_point, cpyxchg);
- /* set the new scheduling point */
- sched_point = cpyxchg;
- }
+ /* set the new scheduling point */
+ sched_point = cpyxchg;
}
}
ir_node *keep, *cpy;
op_copy_assoc_t *entry;
- if (arch_irn_is_ignore(other_different) ||
+ arch_register_req_t const *const req = arch_get_irn_register_req(other_different);
+ if (arch_register_req_is(req, ignore) ||
!mode_is_datab(get_irn_mode(other_different))) {
DB((dbg_constr, LEVEL_1, "ignore constraint for %+F because other_irn is ignore or not a datab node\n", irn));
return;
op_set = &env->op_set;
block = get_nodes_block(irn);
- cls = arch_get_irn_reg_class(other_different);
+ cls = req->cls;
/* Make a not spillable copy of the different node */
/* this is needed because the different irn could be */
sched_add_after(skip_Proj(irn), keep);
/* insert the other different and its copies into the map */
- entry = (op_copy_assoc_t*)ir_nodehashmap_get(op_set, other_different);
+ entry = ir_nodehashmap_get(op_copy_assoc_t, op_set, other_different);
if (! entry) {
entry = OALLOC(&env->obst, op_copy_assoc_t);
entry->cls = cls;
constraint_env_t *env = (constraint_env_t*)walk_env;
sched_foreach_reverse(block, irn) {
- ir_mode *mode = get_irn_mode(irn);
-
- if (mode == mode_T) {
- foreach_out_edge(irn, edge) {
- ir_node *proj = get_edge_src_irn(edge);
-
- mode = get_irn_mode(proj);
- if (mode_is_datab(mode))
- assure_different_constraints(proj, irn, env);
- }
- } else if (mode_is_datab(mode)) {
- assure_different_constraints(irn, irn, env);
- }
+ be_foreach_value(irn, value,
+ if (mode_is_datab(get_irn_mode(value)))
+ assure_different_constraints(value, irn, env);
+ );
}
}
foreach_ir_nodehashmap(&cenv->op_set, map_entry, map_iter) {
op_copy_assoc_t *entry = (op_copy_assoc_t*)map_entry.data;
int idx, num_ck;
- ir_node *cp;
struct obstack obst;
- ir_nodeset_iterator_t iter;
ir_node **ck_arr, **melt_arr;
obstack_init(&obst);
if (ck_arr[idx]) {
int j, n_melt;
ir_node **new_ck_in;
- ir_node *new_ck;
ir_node *sched_pt = NULL;
n_melt = 1;
kill_node(melt_arr[j]);
}
+ ir_node *const new_ck = be_new_CopyKeep(get_nodes_block(ref), be_get_CopyKeep_op(ref), n_melt, new_ck_in);
#ifdef KEEP_ALIVE_COPYKEEP_HACK
- new_ck = be_new_CopyKeep(get_nodes_block(ref), be_get_CopyKeep_op(ref), n_melt, new_ck_in);
keep_alive(new_ck);
-#else
- new_ck = be_new_CopyKeep(get_nodes_block(ref), be_get_CopyKeep_op(ref), n_melt, new_ck_in);
#endif /* KEEP_ALIVE_COPYKEEP_HACK */
/* set register class for all kept inputs */
op_copy_assoc_t *entry = (op_copy_assoc_t*)map_entry.data;
size_t n = ir_nodeset_size(&entry->copies);
ir_node **nodes = ALLOCAN(ir_node*, n);
- ir_node *cp;
- ir_nodeset_iterator_t iter;
be_ssa_construction_env_t senv;
/* put the node in an array */
{
ir_graph *irg = get_irn_irg(perm);
ir_node *bl = get_nodes_block(perm);
- ir_node *node;
int arity = get_irn_arity(perm);
int *map;
int *proj_map;
int new_size;
ir_node *frontier = bl;
int i, n;
+ be_lv_t *lv = be_get_irg_liveness(irg);
/* get some Proj and find out the register class of that Proj. */
ir_node *one_proj = get_edge_src_irn(get_irn_out_edge_first_kind(perm, EDGE_KIND_NORMAL));
* the Perm, increasing the register pressure by one.
*/
sched_foreach_reverse_from(sched_prev(perm), irn) {
- for (i = get_irn_arity(irn) - 1; i >= 0; --i) {
- ir_node *op = get_irn_n(irn, i);
- be_lv_t *lv = be_get_irg_liveness(irg);
- if (arch_irn_consider_in_reg_alloc(cls, op) &&
- !be_values_interfere(lv, op, one_proj)) {
+ be_foreach_use(irn, cls, in_req_, op, op_req_,
+ if (!be_values_interfere(lv, op, one_proj)) {
frontier = irn;
goto found_front;
}
- }
+ );
}
found_front:
DB((dbg_permmove, LEVEL_2, "\tfrontier: %+F\n", frontier));
- node = sched_prev(perm);
n_moved = 0;
- while (!sched_is_begin(node)) {
+ for (;;) {
+ ir_node *const node = sched_prev(perm);
+ if (node == frontier)
+ break;
+
const arch_register_req_t *req;
int input = -1;
ir_node *proj = NULL;
/* it wasn't an input to the perm, we can't do anything more */
if (input < 0)
break;
- if (!sched_comes_after(frontier, node))
- break;
if (arch_irn_is(node, modify_flags))
break;
req = arch_get_irn_register_req(node);
bitset_set(moved, input);
n_moved++;
-
- node = sched_prev(node);
}
/* well, we could not push anything through the perm */
projects / libfirm / blobdiff