ddg.c: Include rtl-iter.h.

gcc/
	* ddg.c: Include rtl-iter.h.
	(mark_mem_use_1): Rename to...
	(mark_mem_use): ...deleting old mark_mem_use.  Use FOR_EACH_SUBRTX
	instead of for_each_rtx.
	(mem_read_insn_p): Update accordingly.

From-SVN: r214632

gcc/ChangeLog

 2014-08-28  Richard Sandiford  <rdsandiford@googlemail.com>
 
+	* ddg.c: Include rtl-iter.h.
+	(mark_mem_use_1): Rename to...
+	(mark_mem_use): ...deleting old mark_mem_use.  Use FOR_EACH_SUBRTX
+	instead of for_each_rtx.
+	(mem_read_insn_p): Update accordingly.
+
+2014-08-28  Richard Sandiford  <rdsandiford@googlemail.com>
+
 	* cse.c (change_cc_mode_args): Delete.
 	(cse_change_cc_mode): Turn from being a for_each_rtx callback to being
 	a function that examines each subrtx itself.  Take the fields of

gcc/ddg.c

@@ -41,6 +41,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "expr.h"
 #include "bitmap.h"
 #include "ddg.h"
+#include "rtl-iter.h"
 
 #ifdef INSN_SCHEDULING
 
@@ -63,19 +64,16 @@ static void add_edge_to_ddg (ddg_ptr g, ddg_edge_ptr);
 static bool mem_ref_p;
 
 /* Auxiliary function for mem_read_insn_p.  */
-static int
-mark_mem_use (rtx *x, void *data ATTRIBUTE_UNUSED)
-{
-  if (MEM_P (*x))
-    mem_ref_p = true;
-  return 0;
-}
-
-/* Auxiliary function for mem_read_insn_p.  */
 static void
-mark_mem_use_1 (rtx *x, void *data)
+mark_mem_use (rtx *x, void *)
 {
-  for_each_rtx (x, mark_mem_use, data);
+  subrtx_iterator::array_type array;
+  FOR_EACH_SUBRTX (iter, array, *x, NONCONST)
+    if (MEM_P (*x))
+      {
+	mem_ref_p = true;
+	break;
+      }
 }
 
 /* Returns nonzero if INSN reads from memory.  */
@@ -83,7 +81,7 @@ static bool
 mem_read_insn_p (rtx_insn *insn)
 {
   mem_ref_p = false;
-  note_uses (&PATTERN (insn), mark_mem_use_1, NULL);
+  note_uses (&PATTERN (insn), mark_mem_use, NULL);
   return mem_ref_p;
 }