{
rtx tmp = *(const rtx *) y;
rtx tmp2 = *(const rtx *) x;
- rtx link;
+ rtx link, lsi;
int tmp_class, tmp2_class, depend_count1, depend_count2;
int val, priority_val, weight_val, info_val;
return info_val;
/* Compare insns based on their relation to the last-scheduled-insn. */
- if (last_scheduled_insn)
+ for (lsi = last_scheduled_insn;
+ lsi && INSN_UID (lsi) >= old_max_uid;
+ lsi = PREV_INSN (lsi))
+ continue;
+
+ if (lsi)
{
/* 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 (last_scheduled_insn));
- if (link == 0 || insn_cost (last_scheduled_insn, link, tmp) == 1)
+ link = find_insn_list (tmp, INSN_DEPEND (lsi));
+ if (link == 0 || insn_cost (lsi, 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 (last_scheduled_insn));
- if (link == 0 || insn_cost (last_scheduled_insn, link, tmp2) == 1)
+ link = find_insn_list (tmp2, INSN_DEPEND (lsi));
+ if (link == 0 || insn_cost (lsi, link, tmp2) == 1)
tmp2_class = 3;
else if (REG_NOTE_KIND (link) == 0) /* Data dependence. */
tmp2_class = 1;