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

From-SVN: r210895

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 845c8c6..f419574 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+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

diff --git a/gcc/sched-int.h b/gcc/sched-int.h
index ffe618c..fe00496 100644 (file)
--- a/gcc/sched-int.h
+++ b/gcc/sched-int.h
@@ -1550,34 +1550,37 @@ 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)
 {
-  dep_link_t link = *it_ptr->linkp;
-
-  if (link != NULL)
-    {
-      *dep_ptr = DEP_LINK_DEP (link);
-      return true;
-    }
-  else
+  while (true)
     {
-      sd_list_types_def types = it_ptr->types;
+      dep_link_t link = *it_ptr->linkp;
 
-      if (types != SD_LIST_NONE)
-       /* Switch to next list.  */
+      if (link != NULL)
+       {
+         *dep_ptr = DEP_LINK_DEP (link);
+         return true;
+       }
+      else
        {
-         deps_list_t list;
+         sd_list_types_def types = it_ptr->types;
 
-         sd_next_list (it_ptr->insn,
-                       &it_ptr->types, &list, &it_ptr->resolved_p);
+         if (types != SD_LIST_NONE)
+           /* Switch to next list.  */
+           {
+             deps_list_t list;
 
-         it_ptr->linkp = &DEPS_LIST_FIRST (list);
+             sd_next_list (it_ptr->insn,
+                           &it_ptr->types, &list, &it_ptr->resolved_p);
 
-         if (list)
-           return sd_iterator_cond (it_ptr, dep_ptr);
-       }
+             it_ptr->linkp = &DEPS_LIST_FIRST (list);
+
+             if (list)
+               continue;
+           }
 
-      *dep_ptr = NULL;
-      return false;
-    }
+         *dep_ptr = NULL;
+         return false;
+       }
+   }
 }
 
 /* Advance iterator.  */