/*
- * Copyright (C) 1995-2008 University of Karlsruhe. All right reserved.
+ * Copyright (C) 1995-2011 University of Karlsruhe. All right reserved.
*
* This file is part of libFirm.
*
ir_node *end_state;
} block_info_t;
-static inline
-block_info_t *new_block_info(struct obstack *obst, ir_node *block)
+static inline block_info_t *new_block_info(struct obstack *obst, ir_node *block)
{
block_info_t *res = OALLOCZ(obst, block_info_t);
return res;
}
-static inline
-block_info_t *get_block_info(ir_node *block)
+static inline block_info_t *get_block_info(ir_node *block)
{
assert(irn_visited(block));
return (block_info_t*) get_irn_link(block);
}
-static inline
-spill_info_t *create_spill_info(minibelady_env_t *env, ir_node *state)
+static inline spill_info_t *create_spill_info(minibelady_env_t *env, ir_node *state)
{
spill_info_t *spill_info = OALLOCZ(&env->obst, spill_info_t);
spill_info->value = state;
return spill_info;
}
-static inline
-spill_info_t *get_spill_info(minibelady_env_t *env, const ir_node *node)
+static inline spill_info_t *get_spill_info(minibelady_env_t *env, const ir_node *node)
{
spill_info_t *spill_info
= (spill_info_t*) ir_nodemap_get(&env->spill_infos, node);
return spill_info;
}
-static
-spill_info_t *create_spill(minibelady_env_t *env, ir_node *state, int force)
+static spill_info_t *create_spill(minibelady_env_t *env, ir_node *state, int force)
{
spill_info_t *spill_info;
ir_node *next;
return spill_info;
}
-static
-void create_reload(minibelady_env_t *env, ir_node *state, ir_node *before,
- ir_node *last_state)
+static void create_reload(minibelady_env_t *env, ir_node *state,
+ ir_node *before, ir_node *last_state)
{
spill_info_t *spill_info = create_spill(env, state, 0);
ir_node *spill = spill_info->spill;
ARR_APP1(ir_node*, spill_info->reloads, reload);
}
-static
-void spill_phi(minibelady_env_t *env, ir_node *phi)
+static void spill_phi(minibelady_env_t *env, ir_node *phi)
{
ir_graph *irg = get_irn_irg(phi);
ir_node *block = get_nodes_block(phi);
int arity = get_irn_arity(phi);
ir_node **in = ALLOCAN(ir_node*, arity);
+ ir_node *dummy = new_r_Dummy(irg, mode_M);
ir_node *spill_to_kill = NULL;
spill_info_t *spill_info;
int i;
/* create a new phi-M with bad preds */
for (i = 0; i < arity; ++i) {
- in[i] = new_r_Unknown(irg, mode_M);
+ in[i] = dummy;
}
DBG((dbg, LEVEL_2, "\tcreate Phi-M for %+F\n", phi));
}
}
-static
-void belady(minibelady_env_t *env, ir_node *block);
+static void belady(minibelady_env_t *env, ir_node *block);
/**
* Collects all values live-in at block @p block and all phi results in this
* block.
* Then it adds the best values (at most n_regs) to the blocks start_workset.
- * The phis among the remaining values get spilled: Introduce psudo-copies of
+ * The phis among the remaining values get spilled: Introduce pseudo-copies of
* their args to break interference and make it possible to spill them to the
* same spill slot.
*/
-static
-block_info_t *compute_block_start_state(minibelady_env_t *env, ir_node *block)
+static block_info_t *compute_block_start_state(minibelady_env_t *env, ir_node *block)
{
block_info_t *block_info;
be_next_use_t next_use;
continue;
DBG((dbg, LEVEL_2, "\t...checking %+F\n", node));
- next_use = be_get_next_use(env->uses, first, 0, node, 0);
+ next_use = be_get_next_use(env->uses, first, node, 0);
if (USES_IS_INFINITE(next_use.time)) {
DBG((dbg, LEVEL_2, "\tnot taken (dead)\n"));
continue;
DBG((dbg, LEVEL_2, "\t...checking %+F\n", node));
- next_use = be_get_next_use(env->uses, first, 0, node, 0);
+ next_use = be_get_next_use(env->uses, first, node, 0);
if (USES_IS_INFINITE(next_use.time)) {
DBG((dbg, LEVEL_2, "\tnot taken (dead)\n"));
* whether it is used from a register or is reloaded
* before the use.
*/
-static
-void belady(minibelady_env_t *env, ir_node *block)
+static void belady(minibelady_env_t *env, ir_node *block)
{
ir_node *current_state;
ir_node *node;
DBG((dbg, LEVEL_3, "End value for %+F: %+F\n", block, current_state));
}
-static
-void belady_walker(ir_node *block, void *data)
+static void belady_walker(ir_node *block, void *data)
{
belady((minibelady_env_t*) data, block);
}
-static
-ir_node *get_end_of_block_insertion_point(ir_node *block)
+static ir_node *get_end_of_block_insertion_point(ir_node *block)
{
ir_node *last = sched_last(block);
if (!is_cfop(last)) {
last = sched_next(last);
/* last node must be a cfop, only exception is the start block */
- assert(last == get_irg_start_block(get_irn_irg(block)));
+ assert(last == get_irg_start_block(get_irn_irg(block)));
}
return last;
/**
* We must adapt the live-outs to the live-ins at each block-border.
*/
-static
-void fix_block_borders(ir_node *block, void *data)
+static void fix_block_borders(ir_node *block, void *data)
{
- minibelady_env_t *env = data;
+ minibelady_env_t *env = (minibelady_env_t*)data;
ir_graph *irg = get_irn_irg(block);
ir_node *startblock = get_irg_start_block(irg);
int i;
pred_info->end_state, need_state));
if (pred_info->end_state != need_state) {
- ir_node *insert_point = get_end_of_block_insertion_point(pred);
+ ir_node *insert_point = get_end_of_block_insertion_point(pred);
DBG((dbg, LEVEL_3, " Creating reload for %+F\n", need_state));
}
}
-void be_assure_state(be_irg_t *birg, const arch_register_t *reg, void *func_env,
+void be_assure_state(ir_graph *irg, const arch_register_t *reg, void *func_env,
create_spill_func create_spill,
- create_reload_func create_reload) {
+ create_reload_func create_reload)
+{
minibelady_env_t env;
- ir_graph *irg = be_get_birg_irg(birg);
spill_info_t *info;
- be_lv_t *lv = be_assure_liveness(birg);
+ be_lv_t *lv = be_assure_liveness(irg);
be_liveness_assure_sets(lv);
/* construct control flow loop tree */
env.func_env = func_env;
env.create_spill = create_spill;
env.create_reload = create_reload;
- env.lv = be_get_birg_liveness(birg);
+ env.lv = be_get_irg_liveness(irg);
env.uses = be_begin_uses(irg, env.lv);
env.spills = NULL;
ir_nodemap_init(&env.spill_infos);
info = env.spills;
while (info != NULL) {
be_ssa_construction_env_t senv;
- int i, len;
+ size_t i, len;
ir_node **phis;
- be_ssa_construction_init(&senv, birg);
+ be_ssa_construction_init(&senv, irg);
if (sched_is_scheduled(info->value))
be_ssa_construction_add_copy(&senv, info->value);
be_ssa_construction_add_copies(&senv,
}
/* some nodes might be dead now. */
- be_remove_dead_nodes_from_schedule(birg);
+ be_remove_dead_nodes_from_schedule(irg);
ir_nodemap_destroy(&env.spill_infos);
be_end_uses(env.uses);
obstack_free(&env.obst, NULL);
}
+BE_REGISTER_MODULE_CONSTRUCTOR(be_init_state);
void be_init_state(void)
{
FIRM_DBG_REGISTER(dbg, "firm.be.state");
}
-
-BE_REGISTER_MODULE_CONSTRUCTOR(be_init_state);
projects / libfirm / blobdiff