#include "execfreq.h"
#include "irvrfy.h"
#include "type.h"
-#include "entity.h"
#include "be_t.h"
#include "belive_t.h"
#include "beprofile.h"
+/** An entry in the id-to-location map */
+typedef struct loc_entry {
+ ir_entity *fname; /**< the entity holding the file name */
+ unsigned int lineno; /**< line number */
+} loc_entry;
+
typedef struct _block_id_walker_data_t {
- tarval **array;
- unsigned int id;
- ir_node *symconst;
+ tarval **array; /**< the entity the holds the block counts */
+ unsigned int id; /**< current block id number */
+ ir_node *symconst; /**< the SymConst representing array */
+ pmap *fname_map; /**< set containing all found filenames */
+ loc_entry *locs; /**< locations */
+ ir_type *tp_char; /**< the character type */
+ unsigned flags; /**< profile flags */
} block_id_walker_data_t;
typedef struct _execcount_t {
* void __firmprof_initializer(void) { __init_firmprof(ent_filename, bblock_id, bblock_counts, n_blocks); }
*/
static ir_graph *
-gen_initializer_irg(entity * ent_filename, entity * bblock_id, entity * bblock_counts, int n_blocks)
+gen_initializer_irg(ir_entity * ent_filename, ir_entity * bblock_id, ir_entity * bblock_counts, int n_blocks)
{
ir_node *start_block;
ir_node *ins[4];
ident *name = new_id_from_str("__firmprof_initializer");
- entity *ent = new_entity(get_glob_type(), name, new_type_method(name, 0, 0));
+ ir_entity *ent = new_entity(get_glob_type(), name, new_type_method(name, 0, 0));
ir_node *ret, *call, *symconst;
symconst_symbol sym;
ident *init_name = new_id_from_str("__init_firmprof");
ir_type *init_type = new_type_method(init_name, 4, 0);
ir_type *uint, *uintptr, *string;
- entity *init_ent;
+ ir_entity *init_ent;
ir_graph *irg;
ir_node *bb;
ir_type *empty_frame_type;
return irg;
}
+/**
+ * Create the location data for the given debug info.
+ */
+static void create_location_data(dbg_info *dbg, block_id_walker_data_t *wd)
+{
+ unsigned lineno;
+ const char *fname = be_retrieve_dbg_info(dbg, &lineno);
+
+ if (fname) {
+ pmap_entry *entry = pmap_find(wd->fname_map, (void *)fname);
+ ir_entity *ent;
+
+ if (! entry) {
+ static unsigned nr = 0;
+ ident *id;
+ char buf[128];
+ ir_type *arr;
+ int i, len = strlen(fname) + 1;
+ tarval **tarval_string;
+
+ snprintf(buf, sizeof(buf), "firm_name_arr.%d", nr);
+ arr = new_type_array(new_id_from_str(buf), 1, wd->tp_char);
+ set_array_bounds_int(arr, 0, 0, len);
+
+ snprintf(buf, sizeof(buf), "__firm_name.%d", nr++);
+ id = new_id_from_str(buf);
+ ent = new_entity(get_glob_type(), id, arr);
+ set_entity_ld_ident(ent, id);
+
+ pmap_insert(wd->fname_map, (void *)fname, ent);
+
+ /* initialize file name string constant */
+ tarval_string = alloca(sizeof(*tarval_string) * (len));
+ for (i = 0; i < len; ++i) {
+ tarval_string[i] = new_tarval_from_long(fname[i], mode_Bs);
+ }
+ set_entity_variability(ent, variability_constant);
+ set_array_entity_values(ent, tarval_string, len);
+ } else {
+ ent = entry->value;
+ }
+ wd->locs[wd->id].fname = ent;
+ wd->locs[wd->id].lineno = lineno;
+ } else {
+ wd->locs[wd->id].fname = NULL;
+ wd->locs[wd->id].lineno = 0;
+ }
+}
+
+/**
+ * Walker: assigns an ID to every block.
+ * Builds the string table
+ */
static void
block_id_walker(ir_node * bb, void * data)
{
wd->array[wd->id] = new_tarval_from_long(get_irn_node_nr(bb), mode_Iu);
instrument_block(bb, wd->symconst, wd->id);
+
+ if (wd->flags & profile_with_locations) {
+ dbg_info *dbg = get_irn_dbg_info(bb);
+ create_location_data(dbg, wd);
+ }
++wd->id;
}
+#define IDENT(x) new_id_from_chars(x, sizeof(x) - 1)
+
ir_graph *
-be_profile_instrument(const char *filename)
+be_profile_instrument(const char *filename, unsigned flags)
{
- int n, i;
- unsigned int n_blocks = 0;
- entity *bblock_id, *bblock_counts, *ent_filename;
- ir_type *array_type, *integer_type, *string_type, *character_type;
- tarval **tarval_array, **tarval_string, *tv;
- int filename_len = strlen(filename)+1;
- ident *cur_ident;
-
+ int n, i;
+ unsigned int n_blocks = 0;
+ ir_entity *bblock_id;
+ ir_entity *bblock_counts;
+ ir_entity *ent_filename;
+ ir_entity *ent_locations = NULL;
+ ir_entity *loc_lineno = NULL;
+ ir_entity *loc_name = NULL;
+ ir_entity *ent;
+ ir_type *array_type;
+ ir_type *uint_type;
+ ir_type *string_type;
+ ir_type *character_type;
+ ir_type *loc_type = NULL;
+ ir_type *charptr_type;
+ ir_type *gtp;
+ tarval **tarval_array;
+ tarval **tarval_string;
+ tarval *tv;
+ int filename_len = strlen(filename)+1;
+ ident *cur_ident;
+ int align_l, align_n, size;
+ ir_graph *rem;
block_id_walker_data_t wd;
symconst_symbol sym;
- integer_type = new_type_primitive(new_id_from_str("__uint"), mode_Iu);
- array_type = new_type_array(new_id_from_str("__block_info_array"), 1, integer_type);
+ /* count the number of block first */
+ for (n = get_irp_n_irgs() - 1; n >= 0; --n) {
+ ir_graph *irg = get_irp_irg(n);
+
+ n_blocks += count_blocks(irg);
+ }
+
+ /* create all the necessary types and entities. Note that the
+ types must have a fixed layout, because we already running in the
+ backend */
+ uint_type = new_type_primitive(IDENT("__uint"), mode_Iu);
+ set_type_alignment_bytes(uint_type, get_type_size_bytes(uint_type));
+ array_type = new_type_array(IDENT("__block_info_array"), 1, uint_type);
set_array_bounds_int(array_type, 0, 0, n_blocks);
- character_type = new_type_primitive(new_id_from_str("__char"), mode_Bs);
- string_type = new_type_array(new_id_from_str("__filename"), 1, character_type);
+ character_type = new_type_primitive(IDENT("__char"), mode_Bs);
+ string_type = new_type_array(IDENT("__filename"), 1, character_type);
set_array_bounds_int(string_type, 0, 0, filename_len);
- cur_ident = new_id_from_str("__FIRMPROF__BLOCK_IDS");
- bblock_id = new_entity(get_glob_type(), cur_ident, array_type);
+ gtp = get_glob_type();
+
+ cur_ident = IDENT("__FIRMPROF__BLOCK_IDS");
+ bblock_id = new_entity(gtp, cur_ident, array_type);
set_entity_ld_ident(bblock_id, cur_ident);
set_entity_variability(bblock_id, variability_initialized);
- cur_ident = new_id_from_str("__FIRMPROF__BLOCK_COUNTS");
- bblock_counts = new_entity(get_glob_type(), cur_ident, array_type);
+ cur_ident = IDENT("__FIRMPROF__BLOCK_COUNTS");
+ bblock_counts = new_entity(gtp, cur_ident, array_type);
set_entity_ld_ident(bblock_counts, cur_ident);
set_entity_variability(bblock_counts, variability_initialized);
- cur_ident = new_id_from_str("__FIRMPROF__FILE_NAME");
- ent_filename = new_entity(get_glob_type(), cur_ident, string_type);
+ cur_ident = IDENT("__FIRMPROF__FILE_NAME");
+ ent_filename = new_entity(gtp, cur_ident, string_type);
set_entity_ld_ident(ent_filename, cur_ident);
- for (n = get_irp_n_irgs() - 1; n >= 0; --n) {
- ir_graph *irg = get_irp_irg(n);
-
- n_blocks += count_blocks(irg);
+ if (flags & profile_with_locations) {
+ loc_type = new_type_struct(IDENT("__location"));
+ loc_lineno = new_entity(loc_type, IDENT("lineno"), uint_type);
+ align_l = get_type_alignment_bytes(uint_type);
+ size = get_type_size_bytes(uint_type);
+ set_entity_offset(loc_lineno, 0);
+
+ charptr_type = new_type_pointer(IDENT("__charptr"), character_type, mode_P_data);
+ align_n = get_type_size_bytes(charptr_type);
+ set_type_alignment_bytes(charptr_type, align_n);
+ loc_name = new_entity(loc_type, IDENT("name"), charptr_type);
+ size = (size + align_n - 1) & -align_n;
+ set_entity_offset(loc_name, size);
+ size += align_n;
+
+ if (align_n > align_l)
+ align_l = align_n;
+ size = (size + align_l - 1) & -align_l;
+ set_type_size_bytes(loc_type, size);
+ set_type_state(loc_type, layout_fixed);
+
+ loc_type = new_type_array(IDENT("__locarray"), 1, loc_type);
+ set_array_bounds_int(string_type, 0, 0, n_blocks);
+
+ cur_ident = IDENT("__FIRMPROF__LOCATIONS");
+ ent_locations = new_entity(gtp, cur_ident, loc_type);
+ set_entity_ld_ident(ent_locations, cur_ident);
}
/* initialize count array */
- tarval_array = alloca(sizeof(*tarval_array) * n_blocks);
+ NEW_ARR_A(tarval *, tarval_array, n_blocks);
tv = get_tarval_null(mode_Iu);
for (i = 0; i < n_blocks; ++i) {
tarval_array[i] = tv;
set_array_entity_values(ent_filename, tarval_string, filename_len);
/* initialize block id array and instrument blocks */
- wd.array = tarval_array;
- wd.id = 0;
+ wd.array = tarval_array;
+ wd.id = 0;
+ wd.tp_char = character_type;
+ wd.flags = flags;
+ if (flags & profile_with_locations) {
+ wd.fname_map = pmap_create();
+ NEW_ARR_A(loc_entry, wd.locs, n_blocks);
+ }
+
for (n = get_irp_n_irgs() - 1; n >= 0; --n) {
ir_graph *irg = get_irp_irg(n);
int i;
}
set_array_entity_values(bblock_id, tarval_array, n_blocks);
+ if (flags & profile_with_locations) {
+ /* build the initializer for the locations */
+ rem = current_ir_graph;
+ current_ir_graph = get_const_code_irg();
+ ent = get_array_element_entity(loc_type);
+ set_entity_variability(ent_locations, variability_constant);
+ for (i = 0; i < n_blocks; ++i) {
+ compound_graph_path *path;
+ tarval *tv;
+ ir_node *n;
+
+ /* lineno */
+ path = new_compound_graph_path(loc_type, 2);
+ set_compound_graph_path_array_index(path, 0, i);
+ set_compound_graph_path_node(path, 0, ent);
+ set_compound_graph_path_node(path, 1, loc_lineno);
+ tv = new_tarval_from_long(wd.locs[i].lineno, mode_Iu);
+ add_compound_ent_value_w_path(ent_locations, new_Const(mode_Iu, tv), path);
+
+ /* name */
+ path = new_compound_graph_path(loc_type, 2);
+ set_compound_graph_path_array_index(path, 0, i);
+ set_compound_graph_path_node(path, 0, ent);
+ set_compound_graph_path_node(path, 1, loc_name);
+ if (wd.locs[i].fname) {
+ sym.entity_p = wd.locs[i].fname;
+ n = new_SymConst(sym, symconst_addr_ent);
+ } else {
+ n = new_Const(mode_P_data, get_mode_null(mode_P_data));
+ }
+ add_compound_ent_value_w_path(ent_locations, n, path);
+ }
+ pmap_destroy(wd.fname_map);
+ }
return gen_initializer_irg(ent_filename, bblock_id, bblock_counts, n_blocks);
}
typedef struct _intialize_execfreq_env_t {
ir_graph *irg;
- exec_freq_t *execfreqs;
+ ir_exec_freq *execfreqs;
double freq_factor;
} initialize_execfreq_env_t;
+// minimal execution frequency (an execfreq of 0 confuses algos)
+static const double MIN_EXECFREQ = 0.00001;
+
static void initialize_execfreq(ir_node *block, void *data) {
initialize_execfreq_env_t *env = data;
double freq;
} else {
freq = be_profile_get_block_execcount(block);
freq *= env->freq_factor;
+ if(freq < MIN_EXECFREQ)
+ freq = MIN_EXECFREQ;
}
set_execfreq(env->execfreqs, block, freq);
}
-exec_freq_t *be_create_execfreqs_from_profile(ir_graph *irg)
+ir_exec_freq *be_create_execfreqs_from_profile(ir_graph *irg)
{
ir_node *block2 = NULL;
ir_node *start_block;
initialize_execfreq_env_t env;
unsigned count;
+ env.irg = irg;
env.execfreqs = create_execfreq(irg);
// find the successor to the start block
return compute_execfreq(irg, 10);
}
- env.freq_factor = 1 / count;
+ env.freq_factor = 1.0 / count;
irg_block_walk_graph(irg, initialize_execfreq, NULL, &env);
return env.execfreqs;
projects / libfirm / blobdiff