Warning fixes:

	* calls.c (emit_call_1): Mark parameter `stack_size' with
	ATTRIBUTE_UNUSED.
	(expand_call): Initialize variable `insn'.
	(emit_library_call): Likewise for variable `high_to_save'.
	(emit_library_call_value): Likewise.
	(store_one_arg): Likewise for variables `lower_bound' and
	`upper_bound'.

	* combine.c (try_combine): Likewise for variables `i2_code_number'
	and `other_code_number'.
	(find_split_point): Likewise for variables `pos', `unsignedp' and
	`inner'.
	(simplify_if_then_else): Likewise for variables `op' and `c1'.
	(simplify_and_const_int): Remove unused variable `width'.
	(merge_outer_ops): Likewise.

	* cse.c (simplify_binary_operation): Cast an INTVAL() to `unsigned
	HOST_WIDE_INT' when comparing against one.
	(simplify_relational_operation): Likewise.
	(cse_insn): Initialize variables `src_eqv_volatile',
	`src_eqv_in_memory', `src_eqv_in_struct', `src_eqv_hash' and `sets'.

	* final.c (init_final): Constify parameter `filename'.
	(final_start_function): Mark parameter `optimize' with
	ATTRIBUTE_UNUSED.
	(profile_function): Likewise for parameters `first' and `optimize'.
	(output_source_line): Likewise for parameter `file'.

	* integrate.c (subst_constants): Cast a value to `size_t' when
	comparing against one.
	(mark_stores): Initialize variable `mode'.  Cast a value to
	`size_t' when comparing against one.

	* integrate.h (MAYBE_EXTEND_CONST_EQUIV_VARRAY): Likewise.

	* loop.c (move_movables): Initialize variable `first'.
	(strength_reduce): Likewise for variable `increment'.
	(check_dbra_loop): Likewise for variable `comparison_val'.  Cast a
	value to `size_t' when comparing against one.
	(load_mems): Initialize variable `end_label'.

	* output.h (init_final): Constify parameter.

	* reload.c (decompose): Initialize variable `base'.

	* reload1.c (reload): Likewise for variable `is_scalar'.
	(spill_hard_reg): Mark parameter `dumpfile' with ATTRIBUTE_UNUSED.
	(choose_reload_regs): Initialize variable `mode'.
	(emit_reload_insns): Likewise for variable `store_insn'.
	(reload_cse_noop_set_p): Mark parameter `insn' with
	ATTRIBUTE_UNUSED.
	(reload_combine): Initialize variable `set'.

	* unroll.c (unroll_loop): Likewise for variable `local_label'.
	(copy_loop_body): Cast a value to `size_t' when comparing against
	one.

	* varasm.c (assemble_variable): Initialize variable `size_tree'.
	(const_hash): Add an `else abort()' in an if-else-if-else sequence.
	(remove_from_pending_weak_list): Mark parameter `name' with
	ATTRIBUTE_UNUSED.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@28860 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 7 insertions, 7 deletions

diff --git a/gcc/reload1.c b/gcc/reload1.c
index 26e4309f2df..28ddd860434 100644
--- a/gcc/reload1.c
+++ b/gcc/reload1.c
@@ -1089,7 +1089,7 @@ reload (first, global, dumpfile)
     {
       rtx addr = 0;
       int in_struct = 0;
-      int is_scalar;
+      int is_scalar = 0;
       int is_readonly = 0;
 
       if (reg_equiv_memory_loc[i])
@@ -3794,7 +3794,7 @@ init_elim_table ()
 static void
 spill_hard_reg (regno, dumpfile, cant_eliminate)
      register int regno;
-     FILE *dumpfile;
+     FILE *dumpfile ATTRIBUTE_UNUSED;
      int cant_eliminate;
 {
   register int i;
@@ -5845,7 +5845,7 @@ choose_reload_regs (chain)
 	    {
 	      int word = 0;
 	      register int regno = -1;
-	      enum machine_mode mode;
+	      enum machine_mode mode = VOIDmode;
 
 	      if (reload_in[r] == 0)
 		;
@@ -7622,7 +7622,7 @@ emit_reload_insns (chain)
 	  register int nregno = REGNO (out);
 	  if (nregno >= FIRST_PSEUDO_REGISTER)
 	    {
-	      rtx src_reg, store_insn;
+	      rtx src_reg, store_insn = NULL_RTX;
 
 	      reg_last_reload_reg[nregno] = 0;
 
@@ -8968,7 +8968,7 @@ reload_cse_regno_equal_p (regno, val, mode)
 static int
 reload_cse_noop_set_p (set, insn)
      rtx set;
-     rtx insn;
+     rtx insn ATTRIBUTE_UNUSED;
 {
   rtx src, dest;
   enum machine_mode dest_mode;
@@ -9650,7 +9650,7 @@ reload_combine ()
 	  rtx prev = prev_nonnote_insn (insn);
 	  rtx prev_set = prev ? single_set (prev) : NULL_RTX;
 	  int regno = REGNO (reg);
-	  rtx const_reg;
+	  rtx const_reg = NULL_RTX;
 	  rtx reg_sum = NULL_RTX;
 
 	  /* Now, we need an index register.
@@ -10074,7 +10074,7 @@ reload_cse_move2add (first)
 		       && reg_set_luid[regno] > reg_set_luid[REGNO (src)])
 		{
 		  rtx next = next_nonnote_insn (insn);
-		  rtx set;
+		  rtx set = NULL_RTX;
 		  if (next)
 		    set = single_set (next);
 		  if (next