Don't leave new_thread hanging if it was split by try_split

From-SVN: r4458

diff --git a/gcc/reorg.c b/gcc/reorg.c
index 409bf81b1cc361cee1010a7791c9c2709cabc493..3c6291814c046a6b88499b5080bc9eb49b7e252c 100644 (file)
--- a/gcc/reorg.c
+++ b/gcc/reorg.c
@@ -3095,7 +3095,7 @@ fill_slots_from_thread (insn, condition, thread, opposite_thread, likely,
        ! stop_search_p (trial, ! thread_if_true) && (! lose || own_thread);
        trial = next_nonnote_insn (trial))
     {
-      rtx pat;
+      rtx pat, old_trial;
 
       /* If we have passed a label, we no longer own this thread.  */
       if (GET_CODE (trial) == CODE_LABEL)
@@ -3142,7 +3142,10 @@ fill_slots_from_thread (insn, condition, thread, opposite_thread, likely,
              || (! insn_sets_resource_p (trial, &opposite_needed, 1)
                  && ! may_trap_p (pat)))
            {
+             old_trial = trial;
              trial = try_split (pat, trial, 0);
+             if (new_thread == old_trial)
+               new_thread = trial;
              pat = PATTERN (trial);
              if (eligible_for_delay (insn, *pslots_filled, trial, flags))
                goto winner;
@@ -3156,7 +3159,10 @@ fill_slots_from_thread (insn, condition, thread, opposite_thread, likely,
 #endif
                   )
            {
+             old_trial = trial;
              trial = try_split (pat, trial, 0);
+             if (new_thread == old_trial)
+               new_thread = trial;
              pat = PATTERN (trial);
              if ((thread_if_true
                   ? eligible_for_annul_false (insn, *pslots_filled, trial, flags)