except.c (start_dynamic_cleanup): Remove unused variable 'dhc'.

        * except.c (start_dynamic_cleanup): Remove unused variable 'dhc'.
        (expand_eh_region_start_tree): Remove unused variable 'note'.
        (exception_optimize): Remove unused variable 'regions'.
        (expand_builtin_eh_stub):  Remove unused variable 'temp'.
        (copy_eh_entry): Deleted.   Dead function.
        * expr.c (move_block_to_reg) Bracket declaration of 'pat' and
        'last' with same #if HAVE_load_multiple as use of it.
        (move_block_from_reg): Likewise.
        (emit_move_insn_1): Remove unused variable 'insns'.
        (store_constructor): Bracket declaration of startb, endb with
        #if TARGET_MEMFUNCTIONS.  Remove unused variables 'set_word_size'
        'target', and 'xtarget'.
        (expand_builtin_setjmp): Remove unused variables 'op0',
        'next_arg_reg', 'old_inhibit_defer_pop'.
        (expand_builtin): Remove unused variable 'offset'.
        (do_store_flag): Remove unused variables 'pattern', 'jump_pat'.
        (emit_queue): Add parens for assignment used as conditional.
        (expand_expr): case TARGET_EXPR: Remove unused variable 'temp'.

From-SVN: r17843

gcc/ChangeLog

+Wed Feb 11 01:35:55 1998  Robert Lipe   <robertl@dgii.com>
+
+	* except.c (start_dynamic_cleanup): Remove unused variable 'dhc'.
+	(expand_eh_region_start_tree): Remove unused variable 'note'.
+	(exception_optimize): Remove unused variable 'regions'.
+	(expand_builtin_eh_stub):  Remove unused variable 'temp'.
+	(copy_eh_entry): Deleted.   Dead function.
+
+        * expr.c (move_block_to_reg) Bracket declaration of 'pat' and 
+	'last' with same #if HAVE_load_multiple as use of it.
+	(move_block_from_reg): Likewise.
+	(emit_move_insn_1): Remove unused variable 'insns'.
+	(store_constructor): Bracket declaration of startb, endb with 
+	#if TARGET_MEMFUNCTIONS.  Remove unused variables 'set_word_size' 
+	'target', and 'xtarget'.
+	(expand_builtin_setjmp): Remove unused variables 'op0', 
+	'next_arg_reg', 'old_inhibit_defer_pop'.
+	(expand_builtin): Remove unused variable 'offset'. 
+	(do_store_flag): Remove unused variables 'pattern', 'jump_pat'.
+	(emit_queue): Add parens for assignment used as conditional.
+	(expand_expr): case TARGET_EXPR: Remove unused variable 'temp'.
+
 Wed Feb 11 01:30:49 1998  Marc Lehmann <pcg@goof.com>
 
 	* i386.c: Added include for recog.h. 

gcc/except.c

@@ -551,20 +551,6 @@ top_label_entry (stack)
   return (*stack)->u.tlabel;
 }
 
-/* Make a copy of ENTRY using xmalloc to allocate the space.  */
-
-static struct eh_entry *
-copy_eh_entry (entry)
-     struct eh_entry *entry;
-{
-  struct eh_entry *newentry;
-
-  newentry = (struct eh_entry *) xmalloc (sizeof (struct eh_entry));
-  bcopy ((char *) entry, (char *) newentry, sizeof (struct eh_entry));
-
-  return newentry;
-}
-
 /* Push a new eh_node entry onto STACK.  */
 
 static void
@@ -855,7 +841,7 @@ start_dynamic_cleanup (func, arg)
      tree func;
      tree arg;
 {
-  rtx dhc, dcc;
+  rtx dcc;
   rtx new_func, new_arg;
   rtx x, buf;
   int size;
@@ -984,8 +970,6 @@ expand_eh_region_start_tree (decl, cleanup)
      tree decl;
      tree cleanup;
 {
-  rtx note;
-
   /* This is the old code.  */
   if (! doing_eh (0))
     return 0;
@@ -2016,7 +2000,7 @@ scan_region (insn, n, delete_outer)
 void
 exception_optimize ()
 {
-  rtx insn, regions = NULL_RTX;
+  rtx insn;
   int n;
 
   /* Remove empty regions.  */
@@ -2160,7 +2144,7 @@ expand_builtin_eh_stub ()
 {
   rtx stub_start = gen_label_rtx ();
   rtx after_stub = gen_label_rtx ();
-  rtx handler, offset, temp;
+  rtx handler, offset;
 
   emit_jump (after_stub);
   emit_label (stub_start);

gcc/expr.c

@@ -499,7 +499,7 @@ void
 emit_queue ()
 {
   register rtx p;
-  while (p = pending_chain)
+  while ((p = pending_chain))
     {
       QUEUED_INSN (p) = emit_insn (QUEUED_BODY (p));
       pending_chain = QUEUED_NEXT (p);
@@ -1657,7 +1657,10 @@ move_block_to_reg (regno, x, nregs, mode)
      enum machine_mode mode;
 {
   int i;
-  rtx pat, last;
+#ifdef HAVE_load_multiple
+  rtx pat; 
+  rtx last;
+#endif
 
   if (nregs == 0)
     return;
@@ -1700,7 +1703,10 @@ move_block_from_reg (regno, x, nregs, size)
      int size;
 {
   int i;
-  rtx pat, last;
+#ifdef HAVE_store_multiple
+  rtx pat; 
+  rtx last;
+#endif
   enum machine_mode mode;
 
   /* If SIZE is that of a mode no bigger than a word, just use that
@@ -2221,7 +2227,6 @@ emit_move_insn_1 (x, y)
     {
       /* Don't split destination if it is a stack push.  */
       int stack = push_operand (x, GET_MODE (x));
-      rtx insns;
 
       /* If this is a stack, push the highpart first, so it
 	 will be in the argument order.
@@ -2265,7 +2270,6 @@ emit_move_insn_1 (x, y)
   else if (GET_MODE_SIZE (mode) > UNITS_PER_WORD)
     {
       rtx last_insn = 0;
-      rtx insns;
       
 #ifdef PUSH_ROUNDING
 
@@ -3883,8 +3887,6 @@ store_constructor (exp, target, cleared)
   else if (TREE_CODE (type) == SET_TYPE)
     {
       tree elt = CONSTRUCTOR_ELTS (exp);
-      rtx xtarget = XEXP (target, 0);
-      int set_word_size = TYPE_ALIGN (type);
       int nbytes = int_size_in_bytes (type), nbits;
       tree domain = TYPE_DOMAIN (type);
       tree domain_min, domain_max, bitlength;
@@ -3991,7 +3993,9 @@ store_constructor (exp, target, cleared)
 	  tree startbit = TREE_PURPOSE (elt);
 	  /* end of range of element, or element value */
 	  tree endbit   = TREE_VALUE (elt);
+#ifdef TARGET_MEM_FUNCTIONS
 	  HOST_WIDE_INT startb, endb;
+#endif
 	  rtx  bitlength_rtx, startbit_rtx, endbit_rtx, targetx;
 
 	  bitlength_rtx = expand_expr (bitlength,
@@ -6954,7 +6958,6 @@ expand_expr (exp, target, tmode, modifier)
 	tree slot = TREE_OPERAND (exp, 0);
 	tree cleanups = NULL_TREE;
 	tree exp1;
-	rtx temp;
 
 	if (TREE_CODE (slot) != VAR_DECL)
 	  abort ();
@@ -7621,9 +7624,6 @@ expand_builtin_setjmp (buf_addr, target, first_label, next_label)
   rtx lab1 = gen_label_rtx ();
   enum machine_mode sa_mode = Pmode, value_mode;
   rtx stack_save;
-  int old_inhibit_defer_pop = inhibit_defer_pop;
-  rtx next_arg_reg;
-  rtx op0;
   int i;
 
   value_mode = TYPE_MODE (integer_type_node);
@@ -8098,9 +8098,12 @@ expand_builtin (exp, target, subtarget, mode, ignore)
     case BUILT_IN_ARGS_INFO:
       {
 	int nwords = sizeof (CUMULATIVE_ARGS) / sizeof (int);
-	int i;
 	int *word_ptr = (int *) &current_function_args_info;
+#if 0	
+	/* These are used by the code below that is if 0'ed away */
+	int i;
 	tree type, elts, result;
+#endif
 
 	if (sizeof (CUMULATIVE_ARGS) % sizeof (int) != 0)
 	  fatal ("CUMULATIVE_ARGS type defined badly; see %s, line %d",
@@ -8614,7 +8617,6 @@ expand_builtin (exp, target, subtarget, mode, ignore)
       {
 	tree arg1 = TREE_VALUE (arglist);
 	tree arg2 = TREE_VALUE (TREE_CHAIN (arglist));
-	tree offset;
 	tree len, len2;
 
 	len = c_strlen (arg1);
@@ -10464,7 +10466,7 @@ do_store_flag (exp, target, mode, only_cheap)
   rtx op0, op1;
   enum insn_code icode;
   rtx subtarget = target;
-  rtx result, label, pattern, jump_pat;
+  rtx result, label;
 
   /* If this is a TRUTH_NOT_EXPR, set a flag indicating we must invert the
      result at the end.  We can't simply invert the test since it would