2009-04-17 Rafael Avila de Espindola <espindola@google.com>

[pf3gnuchains/gcc-fork.git] / gcc / rtlanal.c

diff --git a/gcc/rtlanal.c b/gcc/rtlanal.c
index 73d3b08..d15dbe2 100644 (file)
--- a/gcc/rtlanal.c
+++ b/gcc/rtlanal.c
@@ -1865,10 +1865,11 @@ find_regno_fusage (const_rtx insn, enum rtx_code code, unsigned int regno)
 }
 
 \f
-/* Add register note with kind KIND and datum DATUM to INSN.  */
+/* Allocate a register note with kind KIND and datum DATUM.  LIST is
+   stored as the pointer to the next register note.  */
 
-void
-add_reg_note (rtx insn, enum reg_note kind, rtx datum)
+rtx
+alloc_reg_note (enum reg_note kind, rtx datum, rtx list)
 {
   rtx note;
 
@@ -1881,16 +1882,24 @@ add_reg_note (rtx insn, enum reg_note kind, rtx datum)
       /* These types of register notes use an INSN_LIST rather than an
         EXPR_LIST, so that copying is done right and dumps look
         better.  */
-      note = alloc_INSN_LIST (datum, REG_NOTES (insn));
+      note = alloc_INSN_LIST (datum, list);
       PUT_REG_NOTE_KIND (note, kind);
       break;
 
     default:
-      note = alloc_EXPR_LIST (kind, datum, REG_NOTES (insn));
+      note = alloc_EXPR_LIST (kind, datum, list);
       break;
     }
 
-  REG_NOTES (insn) = note;
+  return note;
+}
+
+/* Add register note with kind KIND and datum DATUM to INSN.  */
+
+void
+add_reg_note (rtx insn, enum reg_note kind, rtx datum)
+{
+  REG_NOTES (insn) = alloc_reg_note (kind, datum, REG_NOTES (insn));
 }
 
 /* Remove register note NOTE from the REG_NOTES of INSN.  */
@@ -5025,4 +5034,3 @@ constant_pool_constant_p (rtx x)
   x = avoid_constant_pool_reference (x);
   return GET_CODE (x) == CONST_DOUBLE;
 }
-