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.

From-SVN: r28860

1 files changed, 5 insertions, 5 deletions

diff --git a/gcc/loop.c b/gcc/loop.c
index f2280b6..810f3a2 100644
--- a/gcc/loop.c
+++ b/gcc/loop.c
@@ -1838,7 +1838,7 @@ move_movables (movables, threshold, insn_count, loop_start, end, nregs)
 	    {
 	      int count;
 	      register struct movable *m1;
-	      rtx first;
+	      rtx first = NULL_RTX;
 
 	      /* Now move the insns that set the reg.  */
 
@@ -4017,7 +4017,7 @@ strength_reduce (scan_start, end, loop_top, insn_count,
       else
 	{
 	  struct iv_class *bl2 = 0;
-	  rtx increment;
+	  rtx increment = NULL_RTX;
 
 	  /* Biv initial value is not a simple move.  If it is the sum of
 	     another biv and a constant, check if both bivs are incremented
@@ -7901,7 +7901,7 @@ check_dbra_loop (loop_end, insn_count, loop_start, loop_info)
 		  || (GET_CODE (comparison) == LE
 		      && no_use_except_counting)))
 	    {
-	      HOST_WIDE_INT add_val, add_adjust, comparison_val;
+	      HOST_WIDE_INT add_val, add_adjust, comparison_val = 0;
 	      rtx initial_value, comparison_value;
 	      int nonneg = 0;
 	      enum rtx_code cmp_code;
@@ -8173,7 +8173,7 @@ check_dbra_loop (loop_end, insn_count, loop_start, loop_info)
 		       REG_EQUAL notes should still be correct.  */
 		    if (! set
 			|| GET_CODE (SET_DEST (set)) != REG
-			|| REGNO (SET_DEST (set)) >= reg_iv_type->num_elements
+			|| (size_t) REGNO (SET_DEST (set)) >= reg_iv_type->num_elements
 			|| REG_IV_TYPE (REGNO (SET_DEST (set))) != GENERAL_INDUCT
 			|| REG_IV_INFO (REGNO (SET_DEST (set)))->src_reg != bl->biv->src_reg)
 		      for (pnote = &REG_NOTES (p); *pnote;)
@@ -9509,7 +9509,7 @@ load_mems (scan_start, end, loop_top, start)
   int i;
   rtx p;
   rtx label = NULL_RTX;
-  rtx end_label;
+  rtx end_label = NULL_RTX;
 
   if (loop_mems_idx > 0) 
     {