fix-header.c (recognized_extern, [...]): Constify a char*.

        * fix-header.c (recognized_extern, recognized_function): Constify
        a char*.

        * lcm.c (compute_laterin): Remove unused variable `temp_bitmap'.
        (pre_edge_lcm): Mark parameter `file' with ATTRIBUTE_UNUSED.
        (compute_available): Remove unused variable `last'.
        (compute_nearerout): Remove unused variable `temp_bitmap'.
        (pre_edge_rev_lcm): Mark parameter `file' with ATTRIBUTE_UNUSED.
        Remove unused variable `x'.

        * scan.h (recognized_function, recognized_extern): Constify a
        char*.

        * simplify-rtx.c (simplify_rtx): Remove unused variable `new'.

From-SVN: r30380

gcc/ChangeLog

+Wed Nov  3 15:39:19 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
+
+	* fix-header.c (recognized_extern, recognized_function): Constify
+	a char*.
+
+	* lcm.c (compute_laterin): Remove unused variable `temp_bitmap'.
+	(pre_edge_lcm): Mark parameter `file' with ATTRIBUTE_UNUSED.
+	(compute_available): Remove unused variable `last'.
+	(compute_nearerout): Remove unused variable `temp_bitmap'.
+	(pre_edge_rev_lcm): Mark parameter `file' with ATTRIBUTE_UNUSED.
+	Remove unused variable `x'.
+
+	* scan.h (recognized_function, recognized_extern): Constify a
+	char*.
+
+	* simplify-rtx.c (simplify_rtx): Remove unused variable `new'.
+
 Wed Nov  3 10:40:53 1999  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>
 
 	 * varasm.c (decode_rtx_const): Use XSTR to access the string

gcc/fix-header.c

@@ -498,8 +498,8 @@ recognized_macro (fname)
 
 void
 recognized_extern (name, name_length, type, type_length)
-     char *name;
-     char *type ATTRIBUTE_UNUSED;
+     const char *name;
+     const char *type ATTRIBUTE_UNUSED;
      int name_length, type_length ATTRIBUTE_UNUSED;
 {
   switch (special_file_handling)
@@ -526,13 +526,13 @@ void
 recognized_function (fname, fname_length,
 		     kind, rtype, rtype_length,
 		     have_arg_list, file_seen, line_seen)
-     char *fname;
+     const char *fname;
      int fname_length;
      int kind; /* One of 'f' 'F' or 'I' */
-     char *rtype;
+     const char *rtype;
      int rtype_length;
      int have_arg_list;
-     char *file_seen;
+     const char *file_seen;
      int line_seen;
 {
   struct partial_proto *partial;

gcc/lcm.c

@@ -214,7 +214,7 @@ compute_laterin (edge_list, n_exprs,
      int n_exprs;
      sbitmap *earliest, *antloc, *later, *laterin;
 {
-  sbitmap difference, temp_bitmap;
+  sbitmap difference;
   int x, num_edges; 
   basic_block pred, succ;
   int done = 0;
@@ -307,7 +307,7 @@ compute_insert_delete (edge_list, antloc, later, laterin,
 
 struct edge_list *
 pre_edge_lcm (file, n_exprs, transp, avloc, antloc, kill, insert, delete)
-     FILE *file;
+     FILE *file ATTRIBUTE_UNUSED;
      int n_exprs;
      sbitmap *transp;
      sbitmap *avloc;
@@ -411,7 +411,6 @@ compute_available (avloc, kill, avout, avin)
      sbitmap *avloc, *kill, *avout, *avin;  
 {
   int bb, changed, passes;
-  int last = n_basic_blocks - 1;
 
   sbitmap_zero (avin[0]);
   sbitmap_copy (avout[0] /*dst*/, avloc[0] /*src*/);
@@ -486,7 +485,7 @@ compute_nearerout (edge_list, n_exprs,
      int n_exprs;
      sbitmap *farthest, *st_avloc, *nearer, *nearerout;
 {
-  sbitmap difference, temp_bitmap;
+  sbitmap difference;
   int x, num_edges; 
   basic_block pred, succ;
   int done = 0;
@@ -582,7 +581,7 @@ compute_rev_insert_delete (edge_list, st_avloc, nearer, nearerout,
 struct edge_list *
 pre_edge_rev_lcm (file, n_exprs, transp, st_avloc, st_antloc, kill, 
 		  insert, delete)
-     FILE *file;
+     FILE *file ATTRIBUTE_UNUSED;
      int n_exprs;
      sbitmap *transp;
      sbitmap *st_avloc;
@@ -595,7 +594,7 @@ pre_edge_rev_lcm (file, n_exprs, transp, st_avloc, st_antloc, kill,
   sbitmap *st_avout, *st_avin, *farthest;
   sbitmap *nearer, *nearerout;
   struct edge_list *edge_list;
-  int x,num_edges;
+  int num_edges;
 
   edge_list = create_edge_list ();
   num_edges = NUM_EDGES (edge_list);

gcc/scan.h

@@ -58,8 +58,8 @@ extern int scan_ident _PARAMS((FILE *, sstring *, int));
 extern int scan_string _PARAMS((FILE *, sstring *, int));
 extern int read_upto _PARAMS((FILE *, sstring *, int));
 extern unsigned long hash _PARAMS((const char *));
-extern void recognized_function _PARAMS((char *, int, int, char *, int, int, char *, int));
-extern void recognized_extern _PARAMS((char *, int, char *, int));
+extern void recognized_function _PARAMS((const char *, int, int, const char *, int, int, const char *, int));
+extern void recognized_extern _PARAMS((const char *, int, const char *, int));
 
 /* get_token is a simple C lexer. */
 #define IDENTIFIER_TOKEN 300

gcc/simplify-rtx.c

@@ -1923,7 +1923,6 @@ simplify_rtx (x)
 {
   enum rtx_code code;
   enum machine_mode mode;
-  rtx new;
 
   mode = GET_MODE (x);
   code = GET_CODE (x);