ssa-dce.c (note_inherently_necessary_set): Add unused attribute.

        * ssa-dce.c (note_inherently_necessary_set): Add unused attribute.
        (find_inherently_necessary): Remove unused variable.

From-SVN: r43690

gcc/ChangeLog

+2001-07-02  Andreas Jaeger  <aj@suse.de>
+
+	* ssa-dce.c (note_inherently_necessary_set): Add unused attribute.
+	(find_inherently_necessary): Remove unused variable.
+
 2001-07-02  Nathan Sidwell  <nathan@codesourcery.com>
 
 	* c-common.h (TDI_inlined): New ast dump phase.

gcc/ssa-dce.c

 /* Dead-code elimination pass for the GNU compiler.
-   Copyright (C) 2000 Free Software Foundation, Inc.
+   Copyright (C) 2000, 2001 Free Software Foundation, Inc.
    Written by Jeffrey D. Oldham <oldham@codesourcery.com>.
 
 This file is part of GNU CC.
@@ -333,11 +333,11 @@ inherently_necessary_register (current_rtx)
 
 /* Called via note_stores for each store in an insn.  Note whether
    or not a particular store is inherently necessary.  Store a
-   nonzero value in inherently_necessary_p if such a storeis found.  */
+   nonzero value in inherently_necessary_p if such a store is found.  */
 
 static void
 note_inherently_necessary_set (dest, set, data)
-     rtx set;
+     rtx set ATTRIBUTE_UNUSED;
      rtx dest;
      void *data;
 {
@@ -364,7 +364,6 @@ static int
 find_inherently_necessary (x)
      rtx x;
 {
-  rtx pattern;
   if (x == NULL_RTX)
     return 0;
   else if (inherently_necessary_register (x))