Warning fixes:

	* builtins.c (expand_builtin_memcmp, expand_builtin_strcmp): Wrap
	prototypes in macro HAVE_cmpstrsi.

	* cpplib.c (cpp_get_token): Remove unused label `op3'.

	* emit-rtl.c (operand_subword): Remove unused variable
	`bits_per_word'.

	* rtl.c (shallow_copy_rtx): Remove unused variable `format_ptr'.

	* tree.c (chainon): Wrap variable `t2' in macro ENABLE_CHECKING.

From-SVN: r28514

gcc/ChangeLog

+Wed Aug  4 16:39:24 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
+
+	* builtins.c (expand_builtin_memcmp, expand_builtin_strcmp): Wrap
+	prototypes in macro HAVE_cmpstrsi.
+
+	* cpplib.c (cpp_get_token): Remove unused label `op3'.
+
+	* emit-rtl.c (operand_subword): Remove unused variable
+	`bits_per_word'.
+
+	* rtl.c (shallow_copy_rtx): Remove unused variable `format_ptr'.
+
+	* tree.c (chainon): Wrap variable `t2' in macro ENABLE_CHECKING.
+
 Wed Aug  4 13:29:23 1999  Zack Weinberg  <zack@bitmover.com>
 
 	* cpphash.c (macroexpand): Delete leading whitespace when arg

gcc/builtins.c

@@ -78,8 +78,10 @@ static rtx expand_builtin_next_arg	PROTO((tree));
 static rtx expand_builtin_va_start	PROTO((int, tree));
 static rtx expand_builtin_va_end	PROTO((tree));
 static rtx expand_builtin_va_copy	PROTO((tree));
+#ifdef HAVE_cmpstrsi
 static rtx expand_builtin_memcmp	PROTO((tree, tree, rtx));
 static rtx expand_builtin_strcmp	PROTO((tree, rtx));
+#endif
 static rtx expand_builtin_memcpy	PROTO((tree));
 static rtx expand_builtin_strcpy	PROTO((tree));
 static rtx expand_builtin_memset	PROTO((tree));

gcc/cpplib.c

@@ -2205,7 +2205,6 @@ cpp_get_token (pfile)
 	      if (opts->cplusplus && PEEKN (1) == '*')
 		{
 		  /* In C++, there's a ->* operator.  */
-		op3:
 		  token = CPP_OTHER;
 		  pfile->only_seen_white = 0;
 		  CPP_RESERVE (pfile, 4);

gcc/emit-rtl.c

@@ -1195,7 +1195,6 @@ operand_subword (op, i, validate_address, mode)
 {
   HOST_WIDE_INT val;
   int size_ratio = HOST_BITS_PER_WIDE_INT / BITS_PER_WORD;
-  int bits_per_word = BITS_PER_WORD;
 
   if (mode == VOIDmode)
     mode = GET_MODE (op);

gcc/rtl.c

@@ -495,7 +495,6 @@ shallow_copy_rtx (orig)
      rtx orig;
 {
   register int i;
-  register char *format_ptr;
   register RTX_CODE code = GET_CODE (orig);
   register rtx copy = rtx_alloc (code);
 

gcc/tree.c

@@ -1950,7 +1950,9 @@ chainon (op1, op2)
   if (op1)
     {
       register tree t1;
+#ifdef ENABLE_CHECKING
       register tree t2;
+#endif
 
       for (t1 = op1; TREE_CHAIN (t1); t1 = TREE_CHAIN (t1))
 	;