* sched-int.h (sd_iterator_cond): Manually tail recurse.

From-SVN: r210895

gcc/ChangeLog

+2014-05-23  Jan Hubicka  <hubicka@ucw.cz>
+
+	* sched-int.h (sd_iterator_cond): Manually tail recurse.
+
 2014-05-23  Segher Boessenkool  <segher@kernel.crashing.org>
 
 	* config/rs6000/440.md (ppc440-integer): Include shift without

gcc/sched-int.h

@@ -1550,6 +1550,8 @@ sd_iterator_start (rtx insn, sd_list_types_def types)
 static inline bool
 sd_iterator_cond (sd_iterator_def *it_ptr, dep_t *dep_ptr)
 {
+  while (true)
+    {
       dep_link_t link = *it_ptr->linkp;
 
       if (link != NULL)
@@ -1572,12 +1574,13 @@ sd_iterator_cond (sd_iterator_def *it_ptr, dep_t *dep_ptr)
 	      it_ptr->linkp = &DEPS_LIST_FIRST (list);
 
 	      if (list)
-	    return sd_iterator_cond (it_ptr, dep_ptr);
+		continue;
 	    }
 
 	  *dep_ptr = NULL;
 	  return false;
 	}
+   }
 }
 
 /* Advance iterator.  */