OpenE2K
/
gcc
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

predict.c (estimate_bb_frequencies): Do not handle conditional jumps jumping to fallthru basic block as conditional... 

* predict.c (estimate_bb_frequencies): Do not handle conditional
	jumps jumping to fallthru basic block as conditional jumps.

	* tm.texi (GCOV_TYPE_SIZE): Document.
	* basic-block.h (gcov_type): Define.
	(struct edge_def): Use gcov_type for count field.
	(struct basic_block_def): Likewise.
	* defaults.h (GCOV_TYPE_SIZE): Define.
	* final.c (end_final): Use GCOV_TYPE_SIZE.
	* flow.c (dump_edge_info, dump_flow_info, dump_bb): Print count fields
	using HOST_WIDEST_INT_PRINT_DEC.
	* gcov-io.h (__fetch_gcov_type, __store_gcov_type, __read_gcov_type,
	__write_gcov_type): New.
	(store_long): Remove.
	* gcov.c (gcov_type): Set default.
	(struct adj_list): Use gcov_type for arc_count.
	(bb_info): Use gcov_type for succ_count, pred_count and exec_count.
	(create_program_flow_graph): Read arc_count properly.
	(solve_program_flow_graph): 'total' is gcov_type.
	(output_data): Line_counts is gcov_type, print it properly.
	* libgcc2.c (struct bb): Counts is gcov_type.
	(__bb_exit_func): Use __read_gcov_type and __write_gcov_type.
	* profile.c (LONG_TYPE_SIZE, LONG_LONG_TYPE_SIZE): Set default.
	(GCOV_TYPE_SIZE): Define.
	(struct bb_info): succ_count and pred_count is gcov_type.
	(compute_branch_probabilities): Use __read_gcov_type,
	print read edges to the dump file.
	(total): Is gcov_type.
	(gen_edge_profiler): Use GCOV_TYPE_SIZE.

From-SVN: r43506
This commit is contained in:
Jan Hubicka 2001-06-22 19:23:14 +02:00 committed by Jan Hubicka
parent b2aec5c0eb
commit 25c3a4ef2e
3 changed files with 79 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
gcc/ChangeLog
View File

@ -1,3 +1,8 @@
Fri Jun 22 19:20:59 CEST 2001 Jan Hubicka <jh@suse.cz>
* predict.c (estimate_bb_frequencies): Do not handle conditional
jumps jumping to fallthru basic block as conditional jumps.
Fri Jun 22 19:11:28 CEST 2001 Jan Hubicka <jh@suse.cz>
* regs.h (struct reg_info_def): Add freq field.

64
gcc/gcov-io.h
View File

@ -25,9 +25,12 @@ Boston, MA 02111-1307, USA. */
#include <sys/types.h>
static int __fetch_long PARAMS ((long *, char *, size_t)) ATTRIBUTE_UNUSED;
static int __store_long PARAMS ((long, char *, size_t)) ATTRIBUTE_UNUSED;
static int __read_long PARAMS ((long *, FILE *, size_t)) ATTRIBUTE_UNUSED;
static int __write_long PARAMS ((long, FILE *, size_t)) ATTRIBUTE_UNUSED;
static int __fetch_gcov_type PARAMS ((gcov_type *, char *, size_t)) ATTRIBUTE_UNUSED;
static int __store_gcov_type PARAMS ((gcov_type, char *, size_t)) ATTRIBUTE_UNUSED;
static int __read_gcov_type PARAMS ((gcov_type *, FILE *, size_t)) ATTRIBUTE_UNUSED;
static int __write_gcov_type PARAMS ((gcov_type, FILE *, size_t)) ATTRIBUTE_UNUSED;
/* These routines only work for signed values. */
@ -36,8 +39,8 @@ static int __write_long PARAMS ((long, FILE *, size_t)) ATTRIBUTE_UNUSED;
to store. */
static int
__store_long (value, dest, bytes)
long value;
__store_gcov_type (value, dest, bytes)
gcov_type value;
char *dest;
size_t bytes;
{
@ -46,7 +49,7 @@ __store_long (value, dest, bytes)
if (value < 0)
{
long oldvalue = value;
gcov_type oldvalue = value;
value = -value;
if (oldvalue != -value)
return 1;
@ -70,6 +73,29 @@ __store_long (value, dest, bytes)
the result in DEST. Returns a non-zero value if the value in SOURCE
will not fit in DEST. */
static int
__fetch_gcov_type (dest, source, bytes)
gcov_type *dest;
char *source;
size_t bytes;
{
gcov_type value = 0;
int i;
for (i = bytes - 1; (size_t) i > (sizeof (*dest) - 1); i--)
if (source[i] & ((size_t) i == (bytes - 1) ? 127 : 255 ))
return 1;
for (; i >= 0; i--)
value = value * 256 + (source[i] & ((size_t)i == (bytes - 1) ? 127 : 255));
if ((source[bytes - 1] & 128) && (value > 0))
value = - value;
*dest = value;
return 0;
}
static int
__fetch_long (dest, source, bytes)
long *dest;
@ -102,6 +128,20 @@ __fetch_long (dest, source, bytes)
BYTES may be a maximum of 10. */
static int
__write_gcov_type (value, file, bytes)
gcov_type value;
FILE *file;
size_t bytes;
{
char c[10];
if (bytes > 10 || __store_gcov_type (value, c, bytes))
return 1;
else
return fwrite(c, 1, bytes, file) != bytes;
}
static int
__write_long (value, file, bytes)
long value;
@ -110,7 +150,7 @@ __write_long (value, file, bytes)
{
char c[10];
if (bytes > 10 || __store_long (value, c, bytes))
if (bytes > 10 || __store_gcov_type ((gcov_type)value, c, bytes))
return 1;
else
return fwrite(c, 1, bytes, file) != bytes;
@ -125,6 +165,20 @@ __write_long (value, file, bytes)
BYTES may be a maximum of 10. */
static int
__read_gcov_type (dest, file, bytes)
gcov_type *dest;
FILE *file;
size_t bytes;
{
char c[10];
if (bytes > 10 || fread(c, 1, bytes, file) != bytes)
return 1;
else
return __fetch_gcov_type (dest, c, bytes);
}
static int
__read_long (dest, file, bytes)
long *dest;

18
gcc/predict.c
View File

@ -187,8 +187,18 @@ dump_prediction (predictor, probability, bb)
probability * 100.0 / REG_BR_PROB_BASE);
if (bb->count)
fprintf (rtl_dump_file, " exec %i hit %i (%.1f%%)",
bb->count, e->count, e->count * 100.0 / bb->count);
{
fprintf (rtl_dump_file, " exec ",
bb->count, e->count, e->count * 100.0 / bb->count);
fprintf (rtl_dump_file, HOST_WIDEST_INT_PRINT_DEC,
(HOST_WIDEST_INT) bb->count);
fprintf (rtl_dump_file, " hit ",
e->count, e->count * 100.0 / bb->count);
fprintf (rtl_dump_file, HOST_WIDEST_INT_PRINT_DEC,
(HOST_WIDEST_INT) e->count);
fprintf (rtl_dump_file, " (%.1f%%)",
e->count, e->count * 100.0 / bb->count);
}
fprintf (rtl_dump_file, "\n");
}
@ -701,7 +711,9 @@ estimate_bb_frequencies (loops)
int probability;
edge fallthru, branch;
if (GET_CODE (last_insn) != JUMP_INSN || !any_condjump_p (last_insn))
if (GET_CODE (last_insn) != JUMP_INSN || !any_condjump_p (last_insn)
/* Avoid handling of conditionals jump jumping to fallthru edge. */
|| BASIC_BLOCK (i)->succ->succ_next == NULL)
{
/* We can predict only conditional jumps at the moment.
Expect each edge to be equall probable.