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re PR gcov-profile/30650 (ICE with -fprofile-use)

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PR gcov-profile/30650
	* value-prof.c (stringop_block_profile): Fix handling of size counter;
	do not divide by zero for never executed counters.
	(tree_find_values_to_profile): Fix counters.
	* gcov-ui.h (GCOV_COUNTER_AVERAGE, GCOV_COUNTER_IOR): Fix comments.

From-SVN: r121554
This commit is contained in:
Jan Hubicka 2007-02-04 00:35:42 +01:00 committed by Jan Hubicka
parent 2b54c30fb0
commit 3855c807ce
3 changed files with 26 additions and 8 deletions
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8
gcc/ChangeLog
View File

@ -1,3 +1,11 @@
2007-02-03 Jan Hubicka <jh@suse.cz>
PR gcov-profile/30650
* value-prof.c (stringop_block_profile): Fix handling of size counter;
do not divide by zero for never executed counters.
(tree_find_values_to_profile): Fix counters.
* gcov-ui.h (GCOV_COUNTER_AVERAGE, GCOV_COUNTER_IOR): Fix comments.
2007-02-03 Ian Lance Taylor <iant@google.com>
* lower-subreg.c (simple_move_operand): New static function,

8
gcc/gcov-io.h
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@ -329,10 +329,10 @@ typedef HOST_WIDEST_INT gcov_type;
consecutive values of expression. */
#define GCOV_COUNTER_V_INDIR 5 /* The most common indirect address */
#define GCOV_COUNTER_AVERAGE 6 /* The most common difference between
consecutive values of expression. */
#define GCOV_COUNTER_IOR 7 /* The most common difference between
consecutive values of expression. */
#define GCOV_COUNTER_AVERAGE 6 /* Compute average value passed to the
counter. */
#define GCOV_COUNTER_IOR 7 /* IOR of the all values passed to
counter. */
#define GCOV_LAST_VALUE_COUNTER 7 /* The last of counters used for value
profiling. */
#define GCOV_COUNTERS 8

18
gcc/value-prof.c
View File

@ -1434,12 +1434,17 @@ stringop_block_profile (tree stmt, unsigned int *expected_align,
histogram = gimple_histogram_value_of_type (cfun, stmt, HIST_TYPE_AVERAGE);
if (!histogram)
*expected_size = -1;
else if (!histogram->hvalue.counters[1])
{
*expected_size = -1;
gimple_remove_histogram_value (cfun, stmt, histogram);
}
else
{
gcov_type size;
size = ((histogram->hvalue.counters[0]
+ histogram->hvalue.counters[0] / 2)
/ histogram->hvalue.counters[0]);
+ histogram->hvalue.counters[1] / 2)
/ histogram->hvalue.counters[1]);
/* Even if we can hold bigger value in SIZE, INT_MAX
is safe "infinity" for code generation strategies. */
if (size > INT_MAX)
@ -1450,6 +1455,11 @@ stringop_block_profile (tree stmt, unsigned int *expected_align,
histogram = gimple_histogram_value_of_type (cfun, stmt, HIST_TYPE_IOR);
if (!histogram)
*expected_align = 0;
else if (!histogram->hvalue.counters[0])
{
gimple_remove_histogram_value (cfun, stmt, histogram);
*expected_align = 0;
}
else
{
gcov_type count;
@ -1661,11 +1671,11 @@ tree_find_values_to_profile (histogram_values *values)
break;
case HIST_TYPE_AVERAGE:
hist->n_counters = 3;
hist->n_counters = 2;
break;
case HIST_TYPE_IOR:
hist->n_counters = 3;
hist->n_counters = 1;
break;
default: