#include "benode_t.h"
#include "beutil.h"
#include "ircons.h"
+#include "irhooks.h"
#include "bechordal_t.h"
{
unsigned int *count = data;
*count = *count + 1;
-
}
static unsigned int
/* keep the execcounts here because they are only read once per compiler run */
static set * profile = NULL;
+static hook_entry_t hook;
/**
* Instrument a block with code needed for profiling
instrument_block(ir_node * bb, ir_node * address, unsigned int id)
{
ir_graph *irg = get_irn_irg(bb);
- ir_node *start_block = get_irg_start_block(irg);
- ir_node *load, *store, *offset, *add, *projm, *proji;
- ir_node *cnst;
+ ir_node *start_block = get_irg_start_block(irg);
+ ir_node *load, *store, *offset, *add, *projm, *proji, *unknown;
+ ir_node *cnst;
if(bb == start_block || bb == get_irg_end_block(irg))
return;
- cnst = new_r_Const_long(irg, start_block, mode_Iu, get_mode_size_bytes(mode_Iu) * id);
- offset = new_r_Add(irg, bb, address, cnst, mode_P);
- load = new_r_Load(irg, bb, new_NoMem(), offset, mode_Iu);
- projm = new_r_Proj(irg, bb, load, mode_M, pn_Load_M);
- proji = new_r_Proj(irg, bb, load, mode_Iu, pn_Load_res);
- cnst = new_r_Const_long(irg, start_block, mode_Iu, 1);
- add = new_r_Add(irg, bb, proji, cnst, mode_Iu);
- store = new_r_Store(irg, bb, projm, offset, add);
- projm = new_r_Proj(irg, bb, store, mode_M, pn_Store_M);
- keep_alive(projm);
+ unknown = new_r_Unknown(irg, mode_M);
+ cnst = new_r_Const_long(irg, start_block, mode_Iu, get_mode_size_bytes(mode_Iu) * id);
+ offset = new_r_Add(irg, bb, address, cnst, mode_P);
+ load = new_r_Load(irg, bb, unknown, offset, mode_Iu);
+ projm = new_r_Proj(irg, bb, load, mode_M, pn_Load_M);
+ proji = new_r_Proj(irg, bb, load, mode_Iu, pn_Load_res);
+ cnst = new_r_Const_long(irg, start_block, mode_Iu, 1);
+ add = new_r_Add(irg, bb, proji, cnst, mode_Iu);
+ store = new_r_Store(irg, bb, projm, offset, add);
+ projm = new_r_Proj(irg, bb, store, mode_M, pn_Store_M);
+ set_irn_link(bb, projm);
+ set_irn_link(projm, load);
}
+typedef struct fix_env {
+ ir_node *start_block;
+ ir_node *end_block;
+} fix_env;
+
+/**
+ * SSA Construction for instrumentation code memory
+ */
+static void
+fix_ssa(ir_node * bb, void * data)
+{
+ fix_env *env = data;
+ ir_node *mem;
+ int arity = get_Block_n_cfgpreds(bb);
+
+ /* start and end block are not instrumented, skip! */
+ if (bb == env->start_block || bb == env->end_block)
+ return;
+
+ if (arity == 1) {
+ mem = get_irn_link(get_Block_cfgpred_block(bb, 0));
+ } else {
+ int n;
+ ir_node **ins;
+ ir_graph *irg = current_ir_graph;
+
+ NEW_ARR_A(ir_node*, ins, arity);
+ for (n = arity - 1; n >= 0; --n) {
+ ins[n] = get_irn_link(get_Block_cfgpred_block(bb, n));
+ }
+ mem = new_r_Phi(irg, bb, arity, ins, mode_M);
+ }
+ set_Load_mem(get_irn_link(get_irn_link(bb)), mem);
+}
+
+
/**
* Generates a new irg which calls the initializer
+ *
+ * Pseudocode:
+ * 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)
set_entity_ld_ident(init_ent, init_name);
irg = new_ir_graph(ent, 0);
- set_current_ir_graph(irg);
empty_frame_type = get_irg_frame_type(irg);
set_type_size_bytes(empty_frame_type, 0);
ins[2] = new_r_SymConst(irg, start_block, sym, symconst_addr_ent);
ins[3] = new_r_Const_long(irg, start_block, mode_Iu, n_blocks);
- call = new_r_Call( irg,
- bb, //ir_node * block,
- get_irg_initial_mem(irg), //ir_node * store,
- symconst, //ir_node * callee,
- 4, //int arity,
- ins, //ir_node ** in,
- init_type //ir_type * tp
- );
-
- ret = new_r_Return ( irg,
- bb, //ir_node * block,
- new_r_Proj(irg, bb, call, mode_M, pn_Call_M_regular), //ir_node * store,
- 0, //int arity,
- NULL //ir_node ** in
- );
-
+ call = new_r_Call(irg, bb, get_irg_initial_mem(irg), symconst, 4, ins, init_type);
+ ret = new_r_Return(irg, bb, new_r_Proj(irg, bb, call, mode_M, pn_Call_M_regular), 0, NULL);
mature_immBlock(bb);
add_immBlock_pred(get_irg_end_block(irg), ret);
}
ir_graph *
-be_profile_instrument(void)
+be_profile_instrument(char * filename)
{
- ir_graph *const_irg = get_const_code_irg();
- ir_node *const_block = get_irg_start_block(const_irg);
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;
- char *filename = "test.c"; //FIXME
+ tarval **tarval_array, **tarval_string, *tv;
int filename_len = strlen(filename)+1;
ident *cur_ident;
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("__function_name"), 1, character_type);
+ string_type = new_type_array(new_id_from_str("__filename"), 1, character_type);
set_array_bounds_int(string_type, 0, 0, filename_len);
- cur_ident = new_id_from_str("__BLOCK_IDS");
+ cur_ident = new_id_from_str("__FIRMPROF__BLOCK_IDS");
bblock_id = new_entity(get_glob_type(), 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("__BLOCK_COUNTS");
+ cur_ident = new_id_from_str("__FIRMPROF__BLOCK_COUNTS");
bblock_counts = new_entity(get_glob_type(), 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("__FUNCTION_NAME");
+ cur_ident = new_id_from_str("__FIRMPROF__FILE_NAME");
ent_filename = new_entity(get_glob_type(), cur_ident, string_type);
set_entity_ld_ident(ent_filename, cur_ident);
- set_entity_variability(ent_filename, variability_initialized);
for (n = get_irp_n_irgs() - 1; n >= 0; --n) {
ir_graph *irg = get_irp_irg(n);
/* initialize count array */
tarval_array = alloca(sizeof(*tarval_array) * n_blocks);
+ tv = get_tarval_null(mode_Iu);
for (i = 0; i < n_blocks; ++i) {
- tarval_array[i] = get_tarval_null(mode_Iu);
+ tarval_array[i] = tv;
}
set_array_entity_values(bblock_counts, tarval_array, n_blocks);
for (i = 0; i < filename_len; ++i) {
tarval_string[i] = new_tarval_from_long(filename[i], mode_Bs);
}
+ set_entity_variability(ent_filename, variability_constant);
set_array_entity_values(ent_filename, tarval_string, filename_len);
-
/* initialize block id array and instrument blocks */
wd.array = tarval_array;
wd.id = 0;
for (n = get_irp_n_irgs() - 1; n >= 0; --n) {
- ir_graph *irg = get_irp_irg(n);
+ ir_graph *irg = get_irp_irg(n);
+ int i;
+ ir_node *endbb = get_irg_end_block(irg);
+ fix_env env;
+
+ set_current_ir_graph(irg);
/* generate a symbolic constant pointing to the count array */
sym.entity_p = bblock_counts;
wd.symconst = new_r_SymConst(irg, get_irg_start_block(irg), sym, symconst_addr_ent);
irg_block_walk_graph(irg, block_id_walker, NULL, &wd);
+ env.start_block = get_irg_start_block(irg);
+ env.end_block = get_irg_end_block(irg);
+ set_irn_link(env.start_block, get_irg_no_mem(irg));
+ irg_block_walk_graph(irg, fix_ssa, NULL, &env);
+ for (i = get_Block_n_cfgpreds(endbb) - 1; i >= 0; --i) {
+ ir_node *node = skip_Proj(get_Block_cfgpred(endbb, i));
+ ir_node *bb = get_Block_cfgpred_block(endbb, i);
+ ir_node *sync;
+ ir_node *ins[2];
+
+ switch (get_irn_opcode(node)) {
+ case iro_Return:
+ ins[0] = get_irn_link(bb);
+ ins[1] = get_Return_mem(node);
+ sync = new_r_Sync(irg, bb, 2, ins);
+ set_Return_mem(node, sync);
+ break;
+ case iro_Raise:
+ ins[0] = get_irn_link(bb);
+ ins[1] = get_Raise_mem(node);
+ sync = new_r_Sync(irg, bb, 2, ins);
+ set_Raise_mem(node, sync);
+ break;
+ default:
+ /* a fragile's op exception. There should be another path to End,
+ so ignore it */
+ assert(is_fragile_op(node) && "unexpected End control flow predecessor");
+ }
+ }
}
set_array_entity_values(bblock_id, tarval_array, n_blocks);
return gen_initializer_irg(ent_filename, bblock_id, bblock_counts, n_blocks);
}
+static void
+profile_node_info(void *ctx, FILE *f, const ir_node *irn)
+{
+ if(is_Block(irn)) {
+ fprintf(f, "profiled execution count: %u\n", be_profile_get_block_execcount(irn));
+ }
+}
+
+static void
+register_vcg_hook(void)
+{
+ memset(&hook, 0, sizeof(hook));
+ hook.hook._hook_node_info = profile_node_info;
+ register_hook(hook_node_info, &hook);
+}
+
+static void
+unregister_vcg_hook(void)
+{
+ unregister_hook(hook_node_info, &hook);
+}
/**
* Reads the corresponding profile info file if it exists and returns a
f = fopen(filename, "r");
if(f == NULL) {
- perror("opening of profile data failed");
return;
}
+ printf("found profile data.\n");
/* check magic */
ret = fread(buf, 8, 1, f);
} while(1);
fclose(f);
+ register_vcg_hook();
}
/**
void
be_profile_free(void)
{
- if(profile)
+ if(profile) {
+ unregister_vcg_hook();
del_set(profile);
+ }
}
/**
- * Tells whether profile module has aquired data
+ * Tells whether profile module has acquired data
*/
int
be_profile_has_data(void)
projects / libfirm / blobdiff