/**
* @file
- * @brief Performs lowering of perm nodes. Inserts copies to assure register constraints.
+ * @brief Performs lowering of perm nodes. Inserts copies to assure
+ * register constraints.
* @author Christian Wuerdig
* @date 14.12.2005
- * @version $Id$
*/
#include "config.h"
#include "debug.h"
#include "xmalloc.h"
#include "irnodeset.h"
-#include "irnodemap.h"
+#include "irnodehashmap.h"
#include "irgmod.h"
#include "iredges_t.h"
#include "irgwalk.h"
#include "array_t.h"
#include "bearch.h"
+#include "beirg.h"
#include "belower.h"
#include "benode.h"
#include "besched.h"
/** Environment for constraints. */
typedef struct {
- ir_graph *irg;
- ir_nodemap_t op_set;
- struct obstack obst;
+ ir_graph *irg;
+ ir_nodehashmap_t op_set;
+ struct obstack obst;
} constraint_env_t;
/** Lowering walker environment. */
* NOTE: This works with auto-magic. If we insert the new copy/exchange
* nodes after this node, everything should be ok. */
ir_node * sched_point = sched_prev(irn);
- const ir_edge_t * edge;
- const ir_edge_t * next;
int n;
int i;
/* build the list of register pairs (in, out) */
n = 0;
- foreach_out_edge_safe(irn, edge, next) {
+ foreach_out_edge_safe(irn, edge) {
ir_node *const out = get_edge_src_irn(edge);
long const pn = get_Proj_proj(out);
ir_node *const in = get_irn_n(irn, pn);
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));
- cpyxchg = be_new_Copy(reg_class, block, arg1);
+ cpyxchg = be_new_Copy(block, arg1);
arch_set_irn_register(cpyxchg, cycle.elems[i + 1]);
/* exchange copy node and proj */
static void gen_assure_different_pattern(ir_node *irn, ir_node *other_different, constraint_env_t *env)
{
- ir_nodemap_t *op_set;
+ ir_nodehashmap_t *op_set;
ir_node *block;
const arch_register_class_t *cls;
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_out(other_different);
+ cls = req->cls;
/* Make a not spillable copy of the different node */
/* this is needed because the different irn could be */
/* check if already exists such a copy in the schedule immediately before */
cpy = find_copy(skip_Proj(irn), other_different);
if (! cpy) {
- cpy = be_new_Copy(cls, block, other_different);
- arch_irn_set_flags(cpy, arch_irn_flags_dont_spill);
+ cpy = be_new_Copy(block, other_different);
+ arch_set_irn_flags(cpy, arch_irn_flags_dont_spill);
DB((dbg_constr, LEVEL_1, "created non-spillable %+F for value %+F\n", cpy, other_different));
} else {
DB((dbg_constr, LEVEL_1, "using already existing %+F for value %+F\n", cpy, other_different));
/* Add the Keep resp. CopyKeep and reroute the users */
/* of the other_different irn in case of CopyKeep. */
if (has_irn_users(other_different)) {
- keep = be_new_CopyKeep_single(cls, block, cpy, irn, get_irn_mode(other_different));
+ keep = be_new_CopyKeep_single(block, cpy, irn);
be_node_set_reg_class_in(keep, 1, cls);
} else {
ir_node *in[2];
sched_add_after(skip_Proj(irn), keep);
/* insert the other different and its copies into the map */
- entry = (op_copy_assoc_t*)ir_nodemap_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;
ir_nodeset_init(&entry->copies);
- ir_nodemap_insert(op_set, other_different, entry);
+ ir_nodehashmap_insert(op_set, other_different, entry);
}
/* insert copy */
*/
static void assure_different_constraints(ir_node *irn, ir_node *skipped_irn, constraint_env_t *env)
{
- const arch_register_req_t *req = arch_get_register_req_out(irn);
+ const arch_register_req_t *req = arch_get_irn_register_req(irn);
if (arch_register_req_is(req, must_be_different)) {
const unsigned other = req->other_different;
*/
static void assure_constraints_walker(ir_node *block, void *walk_env)
{
- ir_node *irn;
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) {
- const ir_edge_t *edge;
-
foreach_out_edge(irn, edge) {
ir_node *proj = get_edge_src_irn(edge);
*/
static void melt_copykeeps(constraint_env_t *cenv)
{
- ir_nodemap_iterator_t map_iter;
- ir_nodemap_entry_t map_entry;
+ ir_nodehashmap_iterator_t map_iter;
+ ir_nodehashmap_entry_t map_entry;
/* for all */
- foreach_ir_nodemap(&cenv->op_set, map_entry, map_iter) {
+ 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(entry->cls, get_nodes_block(ref), be_get_CopyKeep_op(ref), n_melt, new_ck_in, mode_ANY);
keep_alive(new_ck);
-#else
- new_ck = be_new_CopyKeep(entry->cls, get_nodes_block(ref), be_get_CopyKeep_op(ref), n_melt, new_ck_in, get_irn_mode(ref));
#endif /* KEEP_ALIVE_COPYKEEP_HACK */
/* set register class for all kept inputs */
void assure_constraints(ir_graph *irg)
{
- constraint_env_t cenv;
- ir_nodemap_iterator_t map_iter;
- ir_nodemap_entry_t map_entry;
+ constraint_env_t cenv;
+ ir_nodehashmap_iterator_t map_iter;
+ ir_nodehashmap_entry_t map_entry;
FIRM_DBG_REGISTER(dbg_constr, "firm.be.lower.constr");
cenv.irg = irg;
- ir_nodemap_init(&cenv.op_set);
+ ir_nodehashmap_init(&cenv.op_set);
obstack_init(&cenv.obst);
irg_block_walk_graph(irg, NULL, assure_constraints_walker, &cenv);
melt_copykeeps(&cenv);
/* for all */
- foreach_ir_nodemap(&cenv.op_set, map_entry, map_iter) {
+ foreach_ir_nodehashmap(&cenv.op_set, map_entry, map_iter) {
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_nodeset_destroy(&entry->copies);
}
- ir_nodemap_destroy(&cenv.op_set);
+ ir_nodehashmap_destroy(&cenv.op_set);
obstack_free(&cenv.obst, NULL);
- be_liveness_invalidate(be_get_irg_liveness(irg));
+ be_invalidate_live_sets(irg);
}
-
/**
* Push nodes that do not need to be permed through the Perm.
* This is commonly a reload cascade at block ends.
{
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 n_moved;
int new_size;
ir_node *frontier = bl;
- ir_node *irn;
int i, n;
/* get some Proj and find out the register class of that Proj. */
- const ir_edge_t *edge = get_irn_out_edge_first_kind(perm, EDGE_KIND_NORMAL);
- ir_node *one_proj = get_edge_src_irn(edge);
- const arch_register_class_t *cls = arch_get_irn_reg_class_out(one_proj);
+ ir_node *one_proj = get_edge_src_irn(get_irn_out_edge_first_kind(perm, EDGE_KIND_NORMAL));
+ const arch_register_class_t *cls = arch_get_irn_reg_class(one_proj);
assert(is_Proj(one_proj));
DB((dbg_permmove, LEVEL_1, "perm move %+F irg %+F\n", perm, irg));
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;
+ ir_node *proj = NULL;
/* search if node is a INPUT of Perm */
foreach_out_edge(perm, edge) {
/* 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_register_req_out(node);
+ req = arch_get_irn_register_req(node);
if (req->type != arch_register_req_type_normal)
break;
for (i = get_irn_arity(node) - 1; i >= 0; --i) {
bitset_set(moved, input);
n_moved++;
-
- node = sched_prev(node);
}
/* well, we could not push anything through the perm */
env.do_copy = do_copy;
/* we will need interference */
- be_liveness_assure_chk(be_get_irg_liveness(irg));
+ be_assure_live_chk(irg);
irg_walk_graph(irg, NULL, lower_nodes_after_ra_walker, &env);
}
projects / libfirm / blobdiff