* Copyright: (c) Universitaet Karlsruhe
* Licence: This file protected by GPL - GNU GENERAL PUBLIC LICENSE.
*/
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
#include "pset.h"
#include "irnode_t.h"
#include "ircons_t.h"
#include "iredges_t.h"
#include "debug.h"
+#include "irgwalk.h"
#include "besched.h"
#include "bespill.h"
#include "benode_t.h"
+#include "bechordal_t.h"
typedef struct _reloader_t reloader_t;
typedef struct _spill_info_t spill_info_t;
struct _spill_env_t {
firm_dbg_module_t *dbg;
const arch_register_class_t *cls;
- const be_main_session_env_t *session;
+ const be_chordal_env_t *chordal_env;
struct obstack obst;
set *spill_ctxs;
set *spills; /**< all spill_info_t's, which must be placed */
return ! (xx->spilled_node == yy->spilled_node);
}
-spill_env_t *be_new_spill_env(firm_dbg_module_t *dbg, const be_main_session_env_t *session,
- const arch_register_class_t *cls, decide_irn_t is_mem_phi, void *data) {
+spill_env_t *be_new_spill_env(firm_dbg_module_t *dbg,
+ const be_chordal_env_t *chordal_env,
+ decide_irn_t is_mem_phi, void *data) {
+
spill_env_t *env = malloc(sizeof(env[0]));
- env->spill_ctxs = new_set(cmp_spillctx, 1024);
- env->spills = new_set(cmp_spillinfo, 1024);
- env->session = session;
- env->cls = cls;
- env->dbg = dbg;
- env->is_mem_phi = is_mem_phi;
- env->data = data;
+ env->spill_ctxs = new_set(cmp_spillctx, 1024);
+ env->spills = new_set(cmp_spillinfo, 1024);
+ env->cls = chordal_env->cls;
+ env->dbg = dbg;
+ env->is_mem_phi = is_mem_phi;
+ env->data = data;
+ env->chordal_env = chordal_env;
obstack_init(&env->obst);
return env;
}
static ir_node *be_spill_irn(spill_env_t *senv, ir_node *irn, ir_node *ctx_irn) {
spill_ctx_t *ctx;
- DBG((senv->dbg, LEVEL_1, "%+F\n", irn));
+ DBG((senv->dbg, LEVEL_1, "%+F in ctx %+F\n", irn, ctx_irn));
ctx = be_get_spill_ctx(senv->spill_ctxs, irn, ctx_irn);
if(!ctx->spill) {
- const be_main_env_t *env = senv->session->main_env;
- ctx->spill = be_spill(env->node_factory, env->arch_env, irn);
+ const be_main_env_t *env = senv->chordal_env->main_env;
+ ctx->spill = be_spill(env->node_factory, env->arch_env, irn, ctx_irn);
}
return ctx->spill;
static ir_node *be_spill_phi(spill_env_t *senv, ir_node *phi, ir_node *ctx_irn) {
int i, n = get_irn_arity(phi);
ir_node **ins, *bl = get_nodes_block(phi);
- ir_graph *irg = senv->session->irg;
+ ir_graph *irg = senv->chordal_env->irg;
spill_ctx_t *ctx;
assert(is_Phi(phi));
- DBG((senv->dbg, LEVEL_1, "%+F\n", phi));
+ DBG((senv->dbg, LEVEL_1, "%+F in ctx %+F\n", phi, ctx_irn));
/* search an existing spill for this context */
ctx = be_get_spill_ctx(senv->spill_ctxs, phi, ctx_irn);
ins = malloc(n * sizeof(ins[0]));
for(i=0; i<n; ++i)
ins[i] = new_r_Unknown(irg, mode_M);
- ctx->spill = new_r_Phi(senv->session->irg, bl, n, ins, mode_M);
+ ctx->spill = new_r_Phi(senv->chordal_env->irg, bl, n, ins, mode_M);
free(ins);
/* re-wire the phiM */
static void phi_walker(ir_node *irn, void *env) {
spill_env_t *senv = env;
- const arch_env_t *arch = senv->session->main_env->arch_env;
+ const arch_env_t *arch = senv->chordal_env->main_env->arch_env;
if (is_Phi(irn) && arch_irn_has_reg_class(arch, irn, 0, senv->cls)
&& senv->is_mem_phi(irn, senv->data)) {
}
void be_insert_spills_reloads(spill_env_t *senv, pset *reload_set) {
- ir_graph *irg = senv->session->irg;
+ ir_graph *irg = senv->chordal_env->irg;
ir_node *irn;
spill_info_t *si;
struct obstack ob;
/* get all special spilled phis */
DBG((senv->dbg, LEVEL_1, "Mem-phis:\n"));
senv->mem_phis = pset_new_ptr_default();
- irg_walk_graph(senv->session->irg, phi_walker, NULL, senv);
+ irg_walk_graph(senv->chordal_env->irg, phi_walker, NULL, senv);
/* Add reloads for mem_phis */
+ /* BETTER: These reloads (1) should only be inserted, if they are really needed */
DBG((senv->dbg, LEVEL_1, "Reloads for mem-phis:\n"));
for(irn = pset_first(senv->mem_phis); irn; irn = pset_next(senv->mem_phis)) {
const ir_edge_t *e;
foreach_out_edge(irn, e) {
ir_node *user = e->src;
if (is_Phi(user) && !pset_find_ptr(senv->mem_phis, user)) {
- DBG((senv->dbg, LEVEL_1, " non-mem-phi user %+F\n", user));
ir_node *use_bl = get_nodes_block(user);
- be_add_reload_on_edge(senv, irn, use_bl, e->pos);
+ DBG((senv->dbg, LEVEL_1, " non-mem-phi user %+F\n", user));
+ be_add_reload_on_edge(senv, irn, use_bl, e->pos); /* (1) */
}
}
}
/* the reload */
ir_node *bl = is_Block(rld->reloader) ? rld->reloader : get_nodes_block(rld->reloader);
- ir_node *reload = new_Reload(senv->session->main_env->node_factory,
- senv->cls, irg, bl, mode, spill);
+ ir_node *reload = new_Reload(senv->chordal_env->main_env->node_factory,
+ senv->cls, irg, bl, mode, spill);
DBG((senv->dbg, LEVEL_1, " %+F of %+F before %+F\n", reload, si->spilled_node, rld->reloader));
if(reload_set)
assert(n_reloads > 0);
reloads = obstack_finish(&ob);
- be_introduce_copies_ignore(senv->session->dom_front, si->spilled_node,
+ be_introduce_copies_ignore(senv->chordal_env->dom_front, si->spilled_node,
n_reloads, reloads, senv->mem_phis);
obstack_free(&ob, reloads);
}
for(irn = pset_first(senv->mem_phis); irn; irn = pset_next(senv->mem_phis)) {
int i, n;
for(i = 0, n = get_irn_arity(irn); i < n; ++i)
- set_irn_n(irn, i, new_r_Bad(senv->session->irg));
+ set_irn_n(irn, i, new_r_Bad(senv->chordal_env->irg));
sched_remove(irn);
}
spill_info_t templ, *res;
reloader_t *rel;
- assert(get_irn_opcode(to_spill) != iro_Unknown);
-
templ.spilled_node = to_spill;
templ.reloaders = NULL;
res = set_insert(senv->spills, &templ, sizeof(templ), HASH_PTR(to_spill));
projects / libfirm / blobdiff