Warning fixes:

        * Makefile.in (sched.o): Depend on recog.h.
        * alias.c (REG_BASE_VALUE): Cast the result of REGNO() macro to
        (unsigned) when comparing against one.
        (find_base_value): Likewise.
        (record_base_value): Cast variable `regno' to (unsigned) when
        comparing against one.  Cast the result of REGNO() macro to
        (unsigned) when comparing against one.
        (memrefs_conflict_p): Change type of variables `r_x' and `r_y'  to
        unsigned.
        (init_alias_analysis): Add unsigned variable `ui'.  Use it as loop
        variable where an unsigned index is needed.
        * caller-save.c (init_caller_save): Cast `-1' to (enum insn_code)
        before comparing against one.
        * collect2.c: Add prototypes for functions `error', `fatal' and
        `fatal_perror'.  Make these functions take variable arguments
        instead of faking it with a fixed number of args.
        (write_c_file_stat): Cast the argument of ctype macro to (unsigned
        char).
        * combine.c (can_combine_p): Mark parameter `pred' with
        ATTRIBUTE_UNUSED.
        (find_split_point): Cast variable `src' to (unsigned
        HOST_WIDE_INT) when comparing against one.
        HOST_WIDE_INT) when comparing against one.
        (simplify_rtx): Cast 1 to (unsigned HOST_WIDE_INT) in shift.
        (simplify_logical): Likewise.
        (force_to_mode): Cast result of INTVAL() macro to (unsigned
        HOST_WIDE_INT) when comparing against one.  Cast 1 to (unsigned
        HOST_WIDE_INT) in shift.
        (simplify_and_const_int): Cast result of INTVAL() macro to
        `unsigned HOST_WIDE_INT' when comparing against one.
        (merge_outer_ops): Cast variable const0 to `unsigned
        HOST_WIDE_INT' when comparing against the result of
        GET_MODE_MASK() macro.
        (simplify_comparison): Likewise for variable `c0'.  Cast variable
        `const_op' to `unsigned HOST_WIDE_INT' when comparing against
        one.  Cast `1' to `unsigned HOST_WIDE_INT' in shift.  Cast the
        result of `GET_MODE_MASK()/2' to `HOST_WIDE_INT' when comparing
        against one.  Cast `1' to `unsigned HOST_WIDE_INT' in shift.  Cast
        result of INTVAL() macro to `unsigned HOST_WIDE_INT' when
        comparing against one.
        (distribute_notes): Wrap variable `cc0_setter' in macro `HAVE_cc0'.
        config/mips/mips.c (gen_int_relational): Cast result of INTVAL()
        macro to `unsigned HOST_WIDE_INT' when comparing against one.
        (output_block_move): Cast `sizeof' expression to (int) when
        comparing against one.
        (function_arg): Cast BITS_PER_WORD to `unsigned' when comparing
        against one.
        (save_restore_insns): Cast `base_offset' to `long' to match format
        specifier in fprintf.
        * config/mips/mips.h (Pmode): Cast the result of `Pmode' macro
        to `enum machine_mode'.
        * flow.c (life_analysis_1): Remove unused variable `insn'.
        * gcc.c (translate_options): Move variables `j' and `k' into the
        scope in which they are used.  Change their types to `size_t'.
        (set_spec): Cast the argument of ctype macro to `unsigned char'.
        (read_specs): Likewise.
        (process_command): Cast `sizeof' to (int) when comparing against one.
        (do_spec_1): Cast the argument of ctype macro to `unsigned char'.
        (handle_braces): Cast both sides of `==' expression to `long' to
        ensure sign matching.
        (main): Cast variable `i' to `int' when comparing against one.
        * gcov-io.h (__fetch_long): Change type of parameter `bytes' from
        int to size_t.  Cast variable `i' to size_t when comparing against
        one.
        * genattrtab.c (convert_set_attr_alternative): Remove unused
        parameter `insn_code'.  All callers changed.
        (convert_set_attr): Likewise.
        * genrecog.c (add_to_sequence): Cast result of XVECLEN() macro to
        size_t when comparing against one.  Likewise for variable `len'.
        * global.c (global_alloc): Cast variable `max_regno' to size_t
        when comparing against one.  Likewise for variable `max_allocno'.
        * jump.c (sets_cc0_p): Mark parameter `x' with ATTRIBUTE_UNUSED.
        * local-alloc.c (validate_equiv_mem_from_store): Mark parameter
        `set' with ATTRIBUTE_UNUSED.
        (find_free_reg): Cast `sizeof' expression to (int) when comparing
        against one.
        * loop.c (count_loop_regs_set): Remove unused variable `dest'.
        (strength_reduce): Mark parameter `bct_p' with ATTRIBUTE_UNUSED.
        (get_condition): Cast variable `const_val' to `unsigned
        HOST_WIDE_INT' when comparing against one.  Cast unsigned
        expression to HOST_WIDE_INT when comparing against one.
        (insert_loop_mem): Mark parameter `data' with ATTRIBUTE_UNUSED.
        (load_mems_and_recount_loop_regs_set): Cast variable `nregs' to
        `unsigned' when comparing against one.
        * protoize.c (is_id_char): Change type of parameter `ch' to
        unsigned char.
        (munge_compile_params): Cast argument of ctype macro to (const
        unsigned char).
        (process_aux_info_file): Cast variable `aux_info_size' to int when
        comparing against one.
        (forward_to_next_token_char): Cast argument of ctype macro to
        `const unsigned char'.
        (edit_formals_lists): Likewise.
        (find_rightmost_formals_list): Likewise.
        (add_local_decl): Likewise.
        (add_global_decls): Likewise.
        (edit_fn_definition): Likewise.
        (do_cleaning): Likewise.
        (scan_for_missed_items): Likewise.
        (edit_file): Cast variable `orig_size' to (int) when comparing
        against one.
        (main): Cast argument of ctype macro to `const unsigned char'.
        * recog.c (const_int_operand): Mark parameter `mode' with
        ATTRIBUTE_UNUSED.
        * regclass.c (record_reg_classes): Change type of variable `c' to
        `unsigned char'.  Cast `char' array index to `unsigned char'.
        * reload.c (push_secondary_reload): Cast argument to
        REG_CLASS_FROM_LETTER() macro to `unsigned char'.
        * reload1.c (calculate_needs): Cast `char' array index to
        `unsigned char'.
        (set_label_offsets): Change type of variable `i' to unsigned int.
        Cast result of XVECLEN() macro to unsigned when comparing against
        one.
        (mark_not_eliminable): Change type of variable `i' to unsigned.
        (order_regs_for_reload): Likewise.  Cast `max_regno' to unsigned
        when comparing against one.
        (reload_as_needed): Cast macro NUM_ELIMINABLE_REGS to (int) when
        comparing against one.
        (choose_reload_regs): Hide unused label `fail'.
        (reload_cse_simplify_operands): Cast `char' array index to
        `unsigned char'.
        (reload_combine_note_store): Mark parameter `set' with
        ATTRIBUTE_UNUSED.  Cast UNITS_PER_WORD to unsigned when comparing
        against one.
        (reload_cse_move2add): Remove unused variable `src2'.
        * sched.c: Include recog.h.
        (sched_note_set): Remove unused parameter `b'.  All callers
        changed.
        (split_hard_reg_notes): Likewise for parameter `orig_insn'.
        (blockage_range): Cast result of UNIT_BLOCKED() macro to (int)
        when comparing against one.
        * stupid.c (stupid_find_reg): Mark parameter `changes_size' with
        ATTRIBUTE_UNUSED.  Cast `sizeof' expression to (int) when
        comparing against one.
        * unroll.c (precondition_loop_p): Remove unused parameter
        `loop_end'.  All callers changed.

From-SVN: r23079

1 files changed, 17 insertions, 16 deletions

diff --git a/gcc/alias.c b/gcc/alias.c
index 4d696dd..27a069f 100644
--- a/gcc/alias.c
+++ b/gcc/alias.c
@@ -94,7 +94,7 @@ rtx *reg_base_value;
 rtx *new_reg_base_value;
 unsigned int reg_base_value_size;	/* size of reg_base_value array */
 #define REG_BASE_VALUE(X) \
-	(REGNO (X) < reg_base_value_size ? reg_base_value[REGNO (X)] : 0)
+  ((unsigned) REGNO (X) < reg_base_value_size ? reg_base_value[REGNO (X)] : 0)
 
 /* Vector of known invariant relationships between registers.  Set in
    loop unrolling.  Indexed by register number, if nonzero the value
@@ -158,7 +158,7 @@ find_base_value (src)
 	 The test above is not sufficient because the scheduler may move
 	 a copy out of an arg reg past the NOTE_INSN_FUNCTION_BEGIN.  */
       if (REGNO (src) >= FIRST_PSEUDO_REGISTER
-	  && REGNO (src) < reg_base_value_size
+	  && (unsigned) REGNO (src) < reg_base_value_size
 	  && reg_base_value[REGNO (src)])
 	return reg_base_value[REGNO (src)];
 
@@ -341,7 +341,7 @@ record_base_value (regno, val, invariant)
      rtx val;
      int invariant;
 {
-  if (regno >= reg_base_value_size)
+  if ((unsigned) regno >= reg_base_value_size)
     return;
 
   /* If INVARIANT is true then this value also describes an invariant
@@ -352,7 +352,7 @@ record_base_value (regno, val, invariant)
 
   if (GET_CODE (val) == REG)
     {
-      if (REGNO (val) < reg_base_value_size)
+      if ((unsigned) REGNO (val) < reg_base_value_size)
 	{
 	  reg_base_value[regno] = reg_base_value[REGNO (val)];
 	}
@@ -799,7 +799,7 @@ memrefs_conflict_p (xsize, x, ysize, y, c)
 	/* Are these registers known not to be equal?  */
 	if (alias_invariant)
 	  {
-	    int r_x = REGNO (x), r_y = REGNO (y);
+	    unsigned int r_x = REGNO (x), r_y = REGNO (y);
 	    rtx i_x, i_y;	/* invariant relationships of X and Y */
 
 	    i_x = r_x >= reg_base_value_size ? 0 : alias_invariant[r_x];
@@ -1071,6 +1071,7 @@ init_alias_analysis ()
   int maxreg = max_reg_num ();
   int changed, pass;
   register int i;
+  register unsigned int ui;
   register rtx insn;
 
   reg_known_value_size = maxreg;
@@ -1210,13 +1211,13 @@ init_alias_analysis ()
 	}
 
       /* Now propagate values from new_reg_base_value to reg_base_value.  */
-      for (i = 0; i < reg_base_value_size; i++)
+      for (ui = 0; ui < reg_base_value_size; ui++)
 	{
-	  if (new_reg_base_value[i]
-	      && new_reg_base_value[i] != reg_base_value[i]
-	      && ! rtx_equal_p (new_reg_base_value[i], reg_base_value[i]))
+	  if (new_reg_base_value[ui]
+	      && new_reg_base_value[ui] != reg_base_value[ui]
+	      && ! rtx_equal_p (new_reg_base_value[ui], reg_base_value[ui]))
 	    {
-	      reg_base_value[i] = new_reg_base_value[i];
+	      reg_base_value[ui] = new_reg_base_value[ui];
 	      changed = 1;
 	    }
 	}
@@ -1243,16 +1244,16 @@ init_alias_analysis ()
     {
       changed = 0;
       pass++;
-      for (i = 0; i < reg_base_value_size; i++)
+      for (ui = 0; ui < reg_base_value_size; ui++)
 	{
-	  rtx base = reg_base_value[i];
+	  rtx base = reg_base_value[ui];
 	  if (base && GET_CODE (base) == REG)
 	    {
-	      int base_regno = REGNO (base);
-	      if (base_regno == i)		/* register set from itself */
-		reg_base_value[i] = 0;
+	      unsigned int base_regno = REGNO (base);
+	      if (base_regno == ui)		/* register set from itself */
+		reg_base_value[ui] = 0;
 	      else
-		reg_base_value[i] = reg_base_value[base_regno];
+		reg_base_value[ui] = reg_base_value[base_regno];
 	      changed = 1;
 	    }
 	}