2001-08-21 Richard Henderson <rth@redhat.com>
+ * config/ia64/ia64.c (emit_all_insn_group_barriers): Flush state
+ at barrier insns. Emit stop bits before barriers.
+
* flow.c (flow_find_cross_jump): Don't consider unconditional
return insns for commoning.
for (insn = insns; insn; insn = NEXT_INSN (insn))
{
- if (GET_CODE (insn) == INSN
- && GET_CODE (PATTERN (insn)) == UNSPEC_VOLATILE
- && XINT (PATTERN (insn), 1) == 2)
- init_insn_group_barriers ();
+ if (GET_CODE (insn) == BARRIER)
+ {
+ rtx last = prev_active_insn (insn);
+
+ if (! last)
+ continue;
+ if (GET_CODE (last) == JUMP_INSN
+ && GET_CODE (PATTERN (last)) == ADDR_DIFF_VEC)
+ last = prev_active_insn (last);
+ if (recog_memoized (last) != CODE_FOR_insn_group_barrier)
+ emit_insn_after (gen_insn_group_barrier (GEN_INT (3)), last);
+
+ init_insn_group_barriers ();
+ }
else if (INSN_P (insn))
{
- if (group_barrier_needed_p (insn))
+ if (recog_memoized (insn) == CODE_FOR_insn_group_barrier)
+ init_insn_group_barriers ();
+ else if (group_barrier_needed_p (insn))
{
emit_insn_before (gen_insn_group_barrier (GEN_INT (3)), insn);
init_insn_group_barriers ();