sel-sched-ir.h: Make ilist_t work on insn_t rather than rtx

gcc/
	* sel-sched-ir.h (ilist_t): Redefine this typedef in terms of
	ilist_t, not _xlist_t;
	(ILIST_INSN): Define in terms of new union field "insn".
	(ILIST_NEXT): Define in terms of _LIST_NEXT rather than
	_XLIST_NEXT.
	(struct _list_node): Add new field "insn" to the union, of type
	insn_t.
	(ilist_add): Replace macro with an inline function, requiring an
	insn_t.
	(ilist_remove): Define this macro directly in terms of
	_list_remove, rather than indirectly via _xlist_remove.
	(ilist_clear): Likewise, in terms of _list_clear rather than
	_xlist_clear.
	(ilist_is_in_p): Replace macro with an inline function, requiring
	an insn_t.
	(_list_iter_cond_insn): New function.
	(ilist_iter_remove): Define this macro directly in terms of
	_list_iter_remove, rather than indirectly via _xlist_iter_remove.
	(ilist_iterator): Define directly in terms of _list_iterator
	rather than indirectly through _xlist_iterator.
	(FOR_EACH_INSN): Define in terms of _list_iter_cond_insn rather
	than in terms of _FOR_EACH_X.
	(FOR_EACH_INSN_1): Likewise.

From-SVN: r214527

gcc/ChangeLog

+2014-08-26  David Malcolm  <dmalcolm@redhat.com>
+
+	* sel-sched-ir.h (ilist_t): Redefine this typedef in terms of
+	ilist_t, not _xlist_t;
+	(ILIST_INSN): Define in terms of new union field "insn".
+	(ILIST_NEXT): Define in terms of _LIST_NEXT rather than
+	_XLIST_NEXT.
+	(struct _list_node): Add new field "insn" to the union, of type
+	insn_t.
+	(ilist_add): Replace macro with an inline function, requiring an
+	insn_t.
+	(ilist_remove): Define this macro directly in terms of
+	_list_remove, rather than indirectly via _xlist_remove.
+	(ilist_clear): Likewise, in terms of _list_clear rather than
+	_xlist_clear.
+	(ilist_is_in_p): Replace macro with an inline function, requiring
+	an insn_t.
+	(_list_iter_cond_insn): New function.
+	(ilist_iter_remove): Define this macro directly in terms of
+	_list_iter_remove, rather than indirectly via _xlist_iter_remove.
+	(ilist_iterator): Define directly in terms of _list_iterator
+	rather than indirectly through _xlist_iterator.
+	(FOR_EACH_INSN): Define in terms of _list_iter_cond_insn rather
+	than in terms of _FOR_EACH_X.
+	(FOR_EACH_INSN_1): Likewise.
+
 2014-08-26  Joseph Myers  <joseph@codesourcery.com>
 
 	PR target/60606

gcc/sel-sched-ir.h

@@ -63,9 +63,9 @@ typedef _list_t _xlist_t;
 typedef rtx insn_t;
 
 /* List of insns.  */
-typedef _xlist_t ilist_t;
-#define ILIST_INSN(L) (_XLIST_X (L))
-#define ILIST_NEXT(L) (_XLIST_NEXT (L))
+typedef _list_t ilist_t;
+#define ILIST_INSN(L) ((L)->u.insn)
+#define ILIST_NEXT(L) (_LIST_NEXT (L))
 
 /* This lists possible transformations that done locally, i.e. in
    moveup_expr.  */
@@ -353,6 +353,7 @@ struct _list_node
   union
   {
     rtx x;
+    insn_t insn;
     struct _bnd bnd;
     expr_def expr;
     struct _fence fence;
@@ -511,17 +512,48 @@ typedef _list_iterator _xlist_iterator;
 #define _FOR_EACH_X_1(X, I, LP) _FOR_EACH_1 (x, (X), (I), (LP))
 
 
-/* ilist_t functions.  Instruction lists are simply RTX lists.  */
+/* ilist_t functions.  */
+
+static inline void
+ilist_add (ilist_t *lp, insn_t insn)
+{
+  _list_add (lp);
+  ILIST_INSN (*lp) = insn;
+}
+#define ilist_remove(LP) (_list_remove (LP))
+#define ilist_clear(LP) (_list_clear (LP))
+
+static inline bool
+ilist_is_in_p (ilist_t l, insn_t insn)
+{
+  while (l)
+    {
+      if (ILIST_INSN (l) == insn)
+        return true;
+      l = ILIST_NEXT (l);
+    }
+
+  return false;
+}
+
+/* Used through _FOR_EACH.  */
+static inline bool
+_list_iter_cond_insn (ilist_t l, insn_t *ip)
+{
+  if (l)
+    {
+      *ip = ILIST_INSN (l);
+      return true;
+    }
+
+  return false;
+}
 
-#define ilist_add(LP, INSN) (_xlist_add ((LP), (INSN)))
-#define ilist_remove(LP) (_xlist_remove (LP))
-#define ilist_clear(LP) (_xlist_clear (LP))
-#define ilist_is_in_p(L, INSN) (_xlist_is_in_p ((L), (INSN)))
-#define ilist_iter_remove(IP) (_xlist_iter_remove (IP))
+#define ilist_iter_remove(IP) (_list_iter_remove (IP))
 
-typedef _xlist_iterator ilist_iterator;
-#define FOR_EACH_INSN(INSN, I, L) _FOR_EACH_X (INSN, I, L)
-#define FOR_EACH_INSN_1(INSN, I, LP) _FOR_EACH_X_1 (INSN, I, LP)
+typedef _list_iterator ilist_iterator;
+#define FOR_EACH_INSN(INSN, I, L) _FOR_EACH (insn, (INSN), (I), (L))
+#define FOR_EACH_INSN_1(INSN, I, LP) _FOR_EACH_1 (insn, (INSN), (I), (LP))
 
 
 /* Av set iterators.  */