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re PR rtl-optimization/50026 (Revision 177575 caused many test failures)

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2011-08-09  Vladimir Makarov  <vmakarov@redhat.com>

	PR target/50026
	Revert:
	PR rtl-optimization/49990
	* ira-costs.c (print_allocno_costs, print_pseudo_costs): Don't
	ignore classes which can not change mode.
	(find_costs_and_classes): Ditto.

From-SVN: r177599
This commit is contained in:
Vladimir Makarov 2011-08-09 14:35:21 +00:00 committed by Vladimir Makarov
parent 3cb6e5bd17
commit 394b15208d
2 changed files with 29 additions and 4 deletions
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9
gcc/ChangeLog
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@ -1,3 +1,12 @@
2011-08-09 Vladimir Makarov <vmakarov@redhat.com>
PR target/50026
Revert:
PR rtl-optimization/49990
* ira-costs.c (print_allocno_costs, print_pseudo_costs): Don't
ignore classes which can not change mode.
(find_costs_and_classes): Ditto.
2011-08-09 Richard Guenther <rguenther@suse.de>
* tree-vrp.c (zero_nonzero_bits_from_vr): Also return precise

24
gcc/ira-costs.c
View File

@ -1367,7 +1367,11 @@ print_allocno_costs (FILE *f)
for (k = 0; k < cost_classes_ptr->num; k++)
{
rclass = cost_classes[k];
if (contains_reg_of_mode[rclass][PSEUDO_REGNO_MODE (regno)])
if (contains_reg_of_mode[rclass][PSEUDO_REGNO_MODE (regno)]
#ifdef CANNOT_CHANGE_MODE_CLASS
&& ! invalid_mode_change_p (regno, (enum reg_class) rclass)
#endif
)
{
fprintf (f, " %s:%d", reg_class_names[rclass],
COSTS (costs, i)->cost[k]);
@ -1405,7 +1409,11 @@ print_pseudo_costs (FILE *f)
for (k = 0; k < cost_classes_ptr->num; k++)
{
rclass = cost_classes[k];
if (contains_reg_of_mode[rclass][PSEUDO_REGNO_MODE (regno)])
if (contains_reg_of_mode[rclass][PSEUDO_REGNO_MODE (regno)]
#ifdef CANNOT_CHANGE_MODE_CLASS
&& ! invalid_mode_change_p (regno, (enum reg_class) rclass)
#endif
)
fprintf (f, " %s:%d", reg_class_names[rclass],
COSTS (costs, regno)->cost[k]);
}
@ -1642,7 +1650,11 @@ find_costs_and_classes (FILE *dump_file)
rclass = cost_classes[k];
/* Ignore classes that are too small or invalid for this
operand. */
if (! contains_reg_of_mode[rclass][PSEUDO_REGNO_MODE (i)])
if (! contains_reg_of_mode[rclass][PSEUDO_REGNO_MODE (i)]
#ifdef CANNOT_CHANGE_MODE_CLASS
|| invalid_mode_change_p (i, (enum reg_class) rclass)
#endif
)
continue;
if (i_costs[k] < best_cost)
{
@ -1713,7 +1725,11 @@ find_costs_and_classes (FILE *dump_file)
continue;
/* Ignore classes that are too small or invalid
for this operand. */
if (! contains_reg_of_mode[rclass][PSEUDO_REGNO_MODE (i)])
if (! contains_reg_of_mode[rclass][PSEUDO_REGNO_MODE (i)]
#ifdef CANNOT_CHANGE_MODE_CLASS
|| invalid_mode_change_p (i, (enum reg_class) rclass)
#endif
)
;
else if (total_a_costs[k] < best_cost)
{