#include "raw_bitset.h"
#include "debug.h"
#include "error.h"
+#include "irpass.h"
/* maximum number of output Proj's */
#define MAX_PROJ (pn_Load_max > pn_Store_max ? pn_Load_max : pn_Store_max)
*
* @param ldst environment
*/
-static void dump_block_list(ldst_env *env) {
+static void dump_block_list(ldst_env *env)
+{
block_t *entry;
memop_t *op;
int i;
for (op = entry->memop_forward; op != NULL; op = op->next) {
if (i == 0) {
DB((dbg, LEVEL_2, "\n\t"));
- } DB((dbg, LEVEL_2, "%+F", op->node));
+ }
+ DB((dbg, LEVEL_2, "%+F", op->node));
if ((op->flags & FLAG_KILL_ALL) == FLAG_KILL_ALL)
DB((dbg, LEVEL_2, "X"));
else if (op->flags & FLAG_KILL_ALL)
* @param bl current block
* @param s name of the set
*/
-static void dump_curr(block_t *bl, const char *s) {
+static void dump_curr(block_t *bl, const char *s)
+{
unsigned end = env.rbs_size - 1;
unsigned pos;
int i;
} /* dump_curr */
#else
-#define dump_block_list()
-#define dump_curr(bl, s)
+static void dump_block_list(ldst_env *env)
+{
+ (void) env;
+}
+static void dump_curr(block_t *bl, const char *s)
+{
+ (void) bl;
+ (void) s;
+}
#endif /* DEBUG_libfirm */
/** Get the block entry for a block node */
-static block_t *get_block_entry(const ir_node *block) {
+static block_t *get_block_entry(const ir_node *block)
+{
assert(is_Block(block));
return get_irn_link(block);
} /* get_block_entry */
/** Get the memop entry for a memory operation node */
-static memop_t *get_irn_memop(const ir_node *irn) {
+static memop_t *get_irn_memop(const ir_node *irn)
+{
assert(! is_Block(irn));
return get_irn_link(irn);
} /* get_irn_memop */
* @param post post walker function
* @param ctx context parameter for the walker functions
*/
-static void walk_memory(ir_node *irn, irg_walk_func *pre, irg_walk_func *post, void *ctx) {
+static void walk_memory(ir_node *irn, irg_walk_func *pre, irg_walk_func *post, void *ctx)
+{
int i;
ir_mode *mode;
* @param post post walker function
* @param ctx context parameter for the walker functions
*/
-static void walk_memory_irg(ir_graph *irg, irg_walk_func pre, irg_walk_func post, void *ctx) {
+static void walk_memory_irg(ir_graph *irg, irg_walk_func pre, irg_walk_func post, void *ctx)
+{
inc_irg_visited(irg);
ir_reserve_resources(irg, IR_RESOURCE_IRN_VISITED);
*
* @return the allocated id
*/
-static unsigned register_address(ir_node *adr) {
+static unsigned register_address(ir_node *adr)
+{
address_entry *entry;
/* skip Confirms and Casts */
if (entry == NULL) {
/* new address */
- entry = obstack_alloc(&env.obst, sizeof(*entry));
+ entry = OALLOC(&env.obst, address_entry);
entry->id = env.curr_adr_id++;
ir_nodemap_insert(&env.adr_map, adr, entry);
* @param block the block
* @param pos the position of the predecessor in block
*/
-static ir_node *phi_translate(ir_node *address, const ir_node *block, int pos) {
+static ir_node *phi_translate(ir_node *address, const ir_node *block, int pos)
+{
if (is_Phi(address) && get_nodes_block(address) == block)
address = get_Phi_pred(address, pos);
return address;
* Walker: allocate an block entry for every block
* and register all potential addresses.
*/
-static void prepare_blocks(ir_node *irn, void *ctx) {
+static void prepare_blocks(ir_node *irn, void *ctx)
+{
(void)ctx;
if (is_Block(irn)) {
- block_t *entry = obstack_alloc(&env.obst, sizeof(*entry));
+ block_t *entry = OALLOC(&env.obst, block_t);
int n;
entry->memop_forward = NULL;
/**
* Post-Walker, link in all Phi's
*/
-static void link_phis(ir_node *irn, void *ctx) {
+static void link_phis(ir_node *irn, void *ctx)
+{
(void)ctx;
if (is_Phi(irn)) {
/**
* Block walker: creates the inverse post-order list for the CFG.
*/
-static void inverse_post_order(ir_node *block, void *ctx) {
+static void inverse_post_order(ir_node *block, void *ctx)
+{
block_t *entry = get_block_entry(block);
(void)ctx;
/**
* Block walker: create backward links for the memops of a block.
*/
-static void collect_backward(ir_node *block, void *ctx) {
+static void collect_backward(ir_node *block, void *ctx)
+{
block_t *entry = get_block_entry(block);
memop_t *last, *op;
*
* @return the allocated memop
*/
-static memop_t *alloc_memop(ir_node *irn) {
- memop_t *m = obstack_alloc(&env.obst, sizeof(*m));
+static memop_t *alloc_memop(ir_node *irn)
+{
+ memop_t *m = OALLOC(&env.obst, memop_t);
m->value.address = NULL;
m->value.value = NULL;
* @param op the memop to clone
* @param phi the Phi-node representing the new value
*/
-static memop_t *clone_memop_phi(memop_t *op, ir_node *phi) {
- memop_t *m = obstack_alloc(&env.obst, sizeof(*m));
+static memop_t *clone_memop_phi(memop_t *op, ir_node *phi)
+{
+ memop_t *m = OALLOC(&env.obst, memop_t);
m->value = op->value;
m->value.value = phi;
*
* return a bitset of mtp_property_const and mtp_property_pure
*/
-static unsigned get_Call_memory_properties(ir_node *call) {
+static unsigned get_Call_memory_properties(ir_node *call)
+{
ir_type *call_tp = get_Call_type(call);
unsigned prop = get_method_additional_properties(call_tp);
*
* @return an entity or NULL
*/
-static ir_entity *find_constant_entity(ir_node *ptr) {
+static ir_entity *find_constant_entity(ir_node *ptr)
+{
for (;;) {
if (is_SymConst(ptr) && get_SymConst_kind(ptr) == symconst_addr_ent) {
return get_SymConst_entity(ptr);
}
}
- if (variability_constant == get_entity_variability(ent))
+ if (get_entity_linkage(ent) == IR_LINKAGE_CONSTANT)
return ent;
/* try next */
ir_node *l = get_Sub_left(ptr);
ir_node *r = get_Sub_right(ptr);
- if (get_irn_mode(l) == get_irn_mode(ptr) && is_Const(r))
+ if (get_irn_mode(l) == get_irn_mode(ptr) && is_Const(r))
ptr = l;
else
return NULL;
/**
* Return the Selection index of a Sel node from dimension n
*/
-static long get_Sel_array_index_long(ir_node *n, int dim) {
+static long get_Sel_array_index_long(ir_node *n, int dim)
+{
ir_node *index = get_Sel_index(n, dim);
assert(is_Const(index));
return get_tarval_long(get_Const_tarval(index));
* @param depth current depth in steps upward from the root
* of the address
*/
-static compound_graph_path *rec_get_accessed_path(ir_node *ptr, int depth) {
+static compound_graph_path *rec_get_accessed_path(ir_node *ptr, int depth)
+{
compound_graph_path *res = NULL;
ir_entity *root, *field, *ent;
int path_len, pos, idx;
* Returns an access path or NULL. The access path is only
* valid, if the graph is in phase_high and _no_ address computation is used.
*/
-static compound_graph_path *get_accessed_path(ir_node *ptr) {
+static compound_graph_path *get_accessed_path(ir_node *ptr)
+{
compound_graph_path *gr = rec_get_accessed_path(ptr, 0);
return gr;
} /* get_accessed_path */
long index;
} path_entry;
-static ir_node *rec_find_compound_ent_value(ir_node *ptr, path_entry *next) {
+static ir_node *rec_find_compound_ent_value(ir_node *ptr, path_entry *next)
+{
path_entry entry, *p;
ir_entity *ent, *field;
ir_initializer_t *initializer;
return NULL;
} /* rec_find_compound_ent_value */
-static ir_node *find_compound_ent_value(ir_node *ptr) {
+static ir_node *find_compound_ent_value(ir_node *ptr)
+{
return rec_find_compound_ent_value(ptr, NULL);
} /* find_compound_ent_value */
*
* @param op the Load memop
*/
-static void mark_replace_load(memop_t *op, ir_node *def) {
+static void mark_replace_load(memop_t *op, ir_node *def)
+{
op->replace = def;
op->flags |= FLAG_KILLED_NODE;
env.changed = 1;
*
* @param op the Store memop
*/
-static void mark_remove_store(memop_t *op) {
+static void mark_remove_store(memop_t *op)
+{
op->flags |= FLAG_KILLED_NODE;
env.changed = 1;
} /* mark_remove_store */
*
* @param m the memop
*/
-static void update_Load_memop(memop_t *m) {
+static void update_Load_memop(memop_t *m)
+{
int i;
ir_node *load = m->node;
ir_node *ptr;
/* check if we can determine the entity that will be loaded */
ent = find_constant_entity(ptr);
- if (ent != NULL &&
- allocation_static == get_entity_allocation(ent) &&
- visibility_external_allocated != get_entity_visibility(ent)) {
+ if (ent != NULL && get_entity_visibility(ent) != ir_visibility_external) {
/* a static allocation that is not external: there should be NO exception
* when loading even if we cannot replace the load itself. */
ir_node *value = NULL;
env.changed = 1;
}
- if (variability_constant == get_entity_variability(ent)) {
- if (is_atomic_entity(ent)) {
- /* Might not be atomic after lowering of Sels. In this case we
- * could also load, but it's more complicated. */
- /* more simpler case: we load the content of a constant value:
- * replace it by the constant itself */
- value = get_atomic_ent_value(ent);
- } else if (ent->has_initializer) {
+ if (get_entity_linkage(ent) & IR_LINKAGE_CONSTANT) {
+ if (ent->initializer) {
/* new style initializer */
value = find_compound_ent_value(ptr);
- } else {
+ } else if (entity_has_compound_ent_values(ent)) {
/* old style initializer */
compound_graph_path *path = get_accessed_path(ptr);
*
* @param m the memop
*/
-static void update_Store_memop(memop_t *m) {
+static void update_Store_memop(memop_t *m)
+{
int i;
ir_node *store = m->node;
ir_node *adr = get_Store_ptr(store);
*
* @param m the memop
*/
-static void update_Call_memop(memop_t *m) {
+static void update_Call_memop(memop_t *m)
+{
ir_node *call = m->node;
unsigned prop = get_Call_memory_properties(call);
int i;
case pn_Call_X_except:
m->flags |= FLAG_EXCEPTION;
break;
- case pn_Call_M_regular:
+ case pn_Call_M:
m->mem = proj;
break;
}
*
* @param m the memop
*/
-static void update_DivOp_memop(memop_t *m) {
+static void update_DivOp_memop(memop_t *m)
+{
ir_node *div = m->node;
int i;
case pn_Generic_X_except:
m->flags |= FLAG_EXCEPTION;
break;
- case pn_Generic_M_regular:
+ case pn_Generic_M:
m->mem = proj;
break;
}
*
* @param m the memop
*/
-static void update_Phi_memop(memop_t *m) {
+static void update_Phi_memop(memop_t *m)
+{
/* the Phi is it's own mem */
m->mem = m->node;
} /* update_Phi_memop */
/**
* Memory walker: collect all memory ops and build topological lists.
*/
-static void collect_memops(ir_node *irn, void *ctx) {
+static void collect_memops(ir_node *irn, void *ctx)
+{
memop_t *op;
ir_node *block;
block_t *entry;
* not exists in the set or cannot be converted into
* the requested mode
*/
-static memop_t *find_address(const value_t *value) {
+static memop_t *find_address(const value_t *value)
+{
if (rbitset_is_set(env.curr_set, value->id)) {
memop_t *res = env.curr_id_2_memop[value->id];
*
* @param bl the block
*/
-static memop_t *find_address_avail(const block_t *bl, unsigned id, const ir_mode *mode) {
+static memop_t *find_address_avail(const block_t *bl, unsigned id, const ir_mode *mode)
+{
if (rbitset_is_set(bl->avail_out, id)) {
memop_t *res = bl->id_2_memop_avail[id];
/**
* Kill all addresses from the current set.
*/
-static void kill_all(void) {
+static void kill_all(void)
+{
rbitset_clear_all(env.curr_set, env.rbs_size);
/* set sentinel */
*
* @param value the Store value
*/
-static void kill_memops(const value_t *value) {
+static void kill_memops(const value_t *value)
+{
unsigned end = env.rbs_size - 1;
unsigned pos;
*
* @param op the memory op
*/
-static void add_memop(memop_t *op) {
+static void add_memop(memop_t *op)
+{
rbitset_set(env.curr_set, op->value.id);
env.curr_id_2_memop[op->value.id] = op;
} /* add_memop */
* @param bl the block
* @param op the memory op
*/
-static void add_memop_avail(block_t *bl, memop_t *op) {
+static void add_memop_avail(block_t *bl, memop_t *op)
+{
rbitset_set(bl->avail_out, op->value.id);
bl->id_2_memop_avail[op->value.id] = op;
} /* add_memop_avail */
* @param from the original mode
* @param to the destination mode
*/
-static int can_convert_to(const ir_mode *from, const ir_mode *to) {
+static int can_convert_to(const ir_mode *from, const ir_mode *to)
+{
if (get_mode_arithmetic(from) == irma_twos_complement &&
get_mode_arithmetic(to) == irma_twos_complement &&
get_mode_size_bits(from) == get_mode_size_bits(to))
* @return the possible converted node or NULL
* if the conversion is not possible
*/
-static ir_node *conv_to(ir_node *irn, ir_mode *mode) {
+static ir_node *conv_to(ir_node *irn, ir_mode *mode)
+{
ir_mode *other = get_irn_mode(irn);
if (other != mode) {
/* different modes: check if conversion is possible without changing the bits */
*
* @param value the value whose address is updated
*/
-static void update_address(value_t *value) {
+static void update_address(value_t *value)
+{
if (is_Proj(value->address)) {
ir_node *load = get_Proj_pred(value->address);
*
* @param bl the block
*/
-static void calc_gen_kill_avail(block_t *bl) {
+static void calc_gen_kill_avail(block_t *bl)
+{
memop_t *op;
ir_node *def;
*
* @param block the block
*/
-static void forward_avail(block_t *bl) {
+static void forward_avail(block_t *bl)
+{
/* fill the data from the current block */
env.curr_id_2_memop = bl->id_2_memop_avail;
env.curr_set = bl->avail_out;
*
* @return non-zero if the set has changed since last iteration
*/
-static int backward_antic(block_t *bl) {
+static int backward_antic(block_t *bl)
+{
memop_t *op;
ir_node *block = bl->block;
int n = get_Block_n_cfg_outs(block);
if (bl->trans_results == NULL) {
/* allocate the translate cache */
- unsigned size = env.curr_adr_id * sizeof(bl->trans_results[0]);
- bl->trans_results = obstack_alloc(&env.obst, size);
- memset(bl->trans_results, 0, size);
+ bl->trans_results = OALLOCNZ(&env.obst, memop_t*, env.curr_adr_id);
}
/* check for partly redundant values */
}
memcpy(bl->id_2_memop_antic, env.curr_id_2_memop, env.rbs_size * sizeof(env.curr_id_2_memop[0]));
- if (! rbitset_equal(bl->anticL_in, env.curr_set, env.rbs_size)) {
+ if (! rbitsets_equal(bl->anticL_in, env.curr_set, env.rbs_size)) {
/* changed */
rbitset_copy(bl->anticL_in, env.curr_set, env.rbs_size);
dump_curr(bl, "AnticL_in*");
*
* @param op the Load memop
*/
-static void replace_load(memop_t *op) {
+static void replace_load(memop_t *op)
+{
ir_node *load = op->node;
ir_node *def = skip_Id(op->replace);
ir_node *proj;
*
* @param op the Store memop
*/
-static void remove_store(memop_t *op) {
+static void remove_store(memop_t *op)
+{
ir_node *store = op->node;
ir_node *proj;
*
* @param bl the block
*/
-static void do_replacements(block_t *bl) {
+static void do_replacements(block_t *bl)
+{
memop_t *op;
for (op = bl->memop_forward; op != NULL; op = op->next) {
/**
* Calculate the Avail_out sets for all basic blocks.
*/
-static void calcAvail(void) {
+static void calcAvail(void)
+{
memop_t **tmp_memop = env.curr_id_2_memop;
unsigned *tmp_set = env.curr_set;
block_t *bl;
/**
* Calculate the Antic_in sets for all basic blocks.
*/
-static void calcAntic(void) {
+static void calcAntic(void)
+{
int i, need_iter;
/* calculate antic_out */
*
* @param bl the block
*/
-static ir_node *find_last_memory(block_t *bl) {
+static ir_node *find_last_memory(block_t *bl)
+{
for (;;) {
if (bl->memop_backward != NULL) {
return bl->memop_backward->mem;
* @param omem the old memory IR-node
* @param nmem the new memory IR-node
*/
-static void reroute_all_mem_users(ir_node *omem, ir_node *nmem) {
+static void reroute_all_mem_users(ir_node *omem, ir_node *nmem)
+{
int i;
for (i = get_irn_n_outs(omem) - 1; i >= 0; --i) {
* @param nmem the new memory IR-node
* @param pass_bl the block the memory must pass
*/
-static void reroute_mem_through(ir_node *omem, ir_node *nmem, ir_node *pass_bl) {
+static void reroute_mem_through(ir_node *omem, ir_node *nmem, ir_node *pass_bl)
+{
int i, j, n = get_irn_n_outs(omem);
ir_def_use_edge *edges = NEW_ARR_D(ir_def_use_edge, &env.obst, n + 1);
/**
* insert Loads, making partly redundant Loads fully redundant
*/
-static int insert_Load(block_t *bl) {
+static int insert_Load(block_t *bl)
+{
ir_node *block = bl->block;
int i, n = get_Block_n_cfgpreds(block);
unsigned end = env.rbs_size - 1;
block_t *pred_bl = get_block_entry(pred);
int need_phi = 0;
memop_t *first = NULL;
- ir_mode *mode;
+ ir_mode *mode = NULL;
for (i = 0; i < n; ++i) {
memop_t *mop;
assert(last_mem != NULL);
adr = phi_translate(op->value.address, block, i);
load = new_rd_Load(db, pred, last_mem, adr, mode, cons_none);
- def = new_r_Proj(pred, load, mode, pn_Load_res);
+ def = new_r_Proj(load, mode, pn_Load_res);
DB((dbg, LEVEL_1, "Created new %+F in %+F for party redundant %+F\n", load, pred, op->node));
new_op = alloc_memop(load);
- new_op->mem = new_r_Proj(pred, load, mode_M, pn_Load_M);
+ new_op->mem = new_r_Proj(load, mode_M, pn_Load_M);
new_op->value.address = adr;
new_op->value.id = op->value.id;
new_op->value.mode = mode;
/* always update the map after gen/kill, as values might have been changed due to RAR/WAR/WAW */
memcpy(bl->id_2_memop_avail, env.curr_id_2_memop, env.rbs_size * sizeof(env.curr_id_2_memop[0]));
- if (!rbitset_equal(bl->avail_out, env.curr_set, env.rbs_size)) {
+ if (!rbitsets_equal(bl->avail_out, env.curr_set, env.rbs_size)) {
/* the avail set has changed */
- rbitset_cpy(bl->avail_out, env.curr_set, env.rbs_size);
+ rbitset_copy(bl->avail_out, env.curr_set, env.rbs_size);
dump_curr(bl, "Avail_out*");
return 1;
}
/**
* Insert Loads upwards.
*/
-static void insert_Loads_upwards(void) {
+static void insert_Loads_upwards(void)
+{
int i, need_iter;
block_t *bl;
*
* @param irg the graph to operate on
*/
-static void kill_unreachable_blocks(ir_graph *irg) {
+static void kill_unreachable_blocks(ir_graph *irg)
+{
block_t *bl;
ir_node **ins;
int changed = 0;
}
} /* kill_unreachable_blocks */
-int opt_ldst(ir_graph *irg) {
+int opt_ldst(ir_graph *irg)
+{
block_t *bl;
ir_graph *rem = current_ir_graph;
current_ir_graph = irg;
FIRM_DBG_REGISTER(dbg, "firm.opt.ldst");
-// firm_dbg_set_mask(dbg, -1);
DB((dbg, LEVEL_1, "\nDoing Load/Store optimization on %+F\n", irg));
/* we need landing pads */
remove_critical_cf_edges(irg);
-// dump_ir_block_graph(irg, "-XXX");
-
if (get_opt_alias_analysis()) {
assure_irg_entity_usage_computed(irg);
assure_irp_globals_entity_usage_computed();
memset(bl->id_2_memop_antic, 0, env.rbs_size * sizeof(bl->id_2_memop_antic[0]));
}
-// dump_block_list(&env);
+ (void) dump_block_list;
calcAvail();
calcAntic();
ir_nodemap_destroy(&env.adr_map);
obstack_free(&env.obst, NULL);
-// dump_ir_block_graph(irg, "-YYY");
-
#ifdef DEBUG_libfirm
DEL_ARR_F(env.id_2_address);
#endif
current_ir_graph = rem;
return env.changed != 0;
} /* opt_ldst */
+
+ir_graph_pass_t *opt_ldst_pass(const char *name)
+{
+ return def_graph_pass_ret(name ? name : "ldst_df", opt_ldst);
+} /* opt_ldst_pass */
projects / libfirm / blobdiff