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haifa-sched.c (rank_for_schedule): Revert 2002-05-02 change, no longer needed.

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2002-05-03  David S. Miller  <davem@redhat.com>

	* haifa-sched.c (rank_for_schedule): Revert 2002-05-02 change,
	no longer needed.

From-SVN: r53136
This commit is contained in:
David S. Miller 2002-05-03 17:38:36 -07:00 committed by David S. Miller
parent b44140e711
commit 8f39865a3c
2 changed files with 11 additions and 11 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2002-05-03 David S. Miller <davem@redhat.com>
* haifa-sched.c (rank_for_schedule): Revert 2002-05-02 change,
no longer needed.
2002-05-03 Aldy Hernandez <aldyh@redhat.com>
* config/rs6000/rs6000.c (altivec_expand_binop_builtin): Error out

17
gcc/haifa-sched.c
View File

@ -852,7 +852,7 @@ rank_for_schedule (x, y)
{
rtx tmp = *(const rtx *) y;
rtx tmp2 = *(const rtx *) x;
rtx link, lsi;
rtx link;
int tmp_class, tmp2_class, depend_count1, depend_count2;
int val, priority_val, weight_val, info_val;
@ -871,28 +871,23 @@ rank_for_schedule (x, y)
return info_val;
/* Compare insns based on their relation to the last-scheduled-insn. */
for (lsi = last_scheduled_insn;
lsi && INSN_UID (lsi) >= old_max_uid;
lsi = PREV_INSN (lsi))
continue;
if (lsi)
if (last_scheduled_insn)
{
/* Classify the instructions into three classes:
1) Data dependent on last schedule insn.
2) Anti/Output dependent on last scheduled insn.
3) Independent of last scheduled insn, or has latency of one.
Choose the insn from the highest numbered class if different. */
link = find_insn_list (tmp, INSN_DEPEND (lsi));
if (link == 0 || insn_cost (lsi, link, tmp) == 1)
link = find_insn_list (tmp, INSN_DEPEND (last_scheduled_insn));
if (link == 0 || insn_cost (last_scheduled_insn, link, tmp) == 1)
tmp_class = 3;
else if (REG_NOTE_KIND (link) == 0) /* Data dependence. */
tmp_class = 1;
else
tmp_class = 2;
link = find_insn_list (tmp2, INSN_DEPEND (lsi));
if (link == 0 || insn_cost (lsi, link, tmp2) == 1)
link = find_insn_list (tmp2, INSN_DEPEND (last_scheduled_insn));
if (link == 0 || insn_cost (last_scheduled_insn, link, tmp2) == 1)
tmp2_class = 3;
else if (REG_NOTE_KIND (link) == 0) /* Data dependence. */
tmp2_class = 1;