* matrix-reorg.c (analyze_matrix_allocation_site): Remove unused

	malloc_fname variable.
	(check_allocation_function): Remove unused gsi and bb_level_0
	variables.
	(transform_access_sites): Remove unused d_type_size and d_type_size_k
	variables.
	* omega.c (resurrect_subs): Remove unused n variable.
	(omega_solve_geq): Remove unused neweqns variable.
	* lto-streamer-in.c (lto_read_tree): Remove unused end_marker variable.
	* tree-inline.c (declare_return_variable): Remove USE_P argument,
	return use instead of var.
	(remap_decl, remap_block): Remove unused fn variable.
	(expand_call_inline): Remove unused retvar variable, adjust
	declare_return_variable caller.
	(optimize_inline_calls): Remove unused prev_fn variable.
	* tree-vect-slp.c (vect_analyze_slp_instance): Remove unused ncopies
	variable.
	(vect_create_mask_and_perm): Remove unused group_size and dr_chain_size
	variables.
	* tree-ssa-loop-niter.c (split_to_var_and_offset): Handle MINUS_EXPR
	properly.
	* tree-vect-loop.c (vect_analyze_loop_form): Remove unused backedge
	variable.
	(vect_create_epilog_for_reduction): Remove unused bytesize variable.
	* omp-low.c (workshare_safe_to_combine_p): Remove par_entry_bb
	parameter.  Remove unused par_stmt variable.
	(determine_parallel_type): Adjust workshare_safe_to_combine_p caller.
	(expand_omp_sections): Remove unused l1 variable.
	(lower_omp_for): Remove unused ilist variable.
	* tree-loop-distribution.c (mark_nodes_having_upstream_mem_writes):
	Remove unused has_upstream_mem_write_p variable.
	* recog.c (decode_asm_operands): Remove unused noperands variable.
	* tree-ssa-alias.c (refs_may_alias_p_1): Remove unused size1 and
	size2 variable.
	* libgcov.c (__gcov_merge_delta): Remove unused last variable.
	* tree-call-cdce.c (gen_conditions_for_pow_int_base): Remove unused
	base_nm variable.
	(gen_conditions_for_pow): Remove unused ec variable.
	* tree-ssa-sccvn.c (vn_reference_lookup_3): Remove unused size
	variable.
	* ipa-struct-reorg.c (program_redefines_malloc_p): Remove unused
	fndecl variable.
	* tree-ssa-sink.c (statement_sink_location): Remove unused code
	variable.
	* regmove.c (copy_src_to_dest): Remove unused insn_uid and move_uid
	variables.
	* tree-complex.c (create_one_component_var): Remove unused inner_type
	variable.
	* calls.c (emit_call_1): Don't GEN_INT (struct_value_size)
	unnecessarily when GEN_*CALL omits that argument.
	* regrename.c (regrename_optimize): Remove unused regs_seen variable.
	(build_def_use): Remove unused icode variable.
	* ipa-pure-const.c (check_call): Remove unused callee and avail
	variables.
	* tree-dfa.c (add_referenced_var): Remove unused v_ann variable.
	* tree-vect-patterns.c (vect_recog_pow_pattern): Remove unused type
	variable.
	(vect_pattern_recog): Remove unused stmt variable.
	* sel-sched-ir.c (make_regions_from_the_rest): Remove unused
	new_regions variable.
	* postreload.c (reload_cse_simplify_operands): Remove unused mode
	variable.
	* tree-parloops.c (create_call_for_reduction_1): Remove unused
	addr_type variable.
	(create_parallel_loop): Remove unused res variable.
	(gen_parallel_loop): Remove unused nloop variable.
	* tree-vect-loop-manip.c (vect_loop_versioning): Likewise.
	* value-prof.c (gimple_mod_subtract_transform,
	gimple_stringops_transform): Remove unused value variable.
	(gimple_stringops_values_to_profile): Remove unused fcode variable.
	* tree-vrp.c (register_new_assert_for): Remove unused found variable.
	(vrp_visit_switch_stmt): Remove unused n variable.
	* tree-vect-stmts.c (vectorizable_conversion): Remove unused expr
	variable.
	(vectorizable_operation): Remove unused shift_p variable.
	(vectorizable_store): Remove unused first_stmt_vinfo variable.
	* tree-ssa-operands.c (add_stmt_operand): Remove unused v_ann variable.
	* tree-vect-data-refs.c (vect_analyze_data_refs): Remove unused bb
	variable.
	(vect_permute_store_chain): Remove unused scalar_dest variable.
	(vect_supportable_dr_alignment): Remove unused invariant_in_outerloop
	variable.
	* tree-ssa-threadupdate.c (thread_single_edge): Remove unused
	local_info variable.
	* tree-optimize.c (tree_rest_of_compilation): Remove unused node
	variable.
	* optabs.c (expand_binop): Remove unused equiv_value variable.
	(emit_libcall_block): Remove unused prev variable.
	(init_optabs): Remove unused int_mode variable.
	* tree-ssa-structalias.c (scc_visit): Remove unused have_ref_node
	variable.
	(do_structure_copy): Remove unused lhsbase and rhsbase variables.
	(find_func_aliases): Remove unused rhstype variable.
	(ipa_pta_execute): Remove unused varid variable.
gcc/objc/
	* objc-act.c (generate_shared_structures): Remove unused sc_spec and
	decl_specs variables.
	(objc_build_message_expr): Remove unused loc variable.
	(objc_finish_message_expr): Remove unused saved_rtype variable.
	(encode_field_decl): Remove unused type variable.
gcc/lto/
	* lto-lang.c (handle_nonnull_attribute): Remove unused attr_arg_num
	variable.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@154726 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 4 insertions, 14 deletions

diff --git a/gcc/tree-ssa-structalias.c b/gcc/tree-ssa-structalias.c
index 012dc1c9795..753eefee909 100644
--- a/gcc/tree-ssa-structalias.c
+++ b/gcc/tree-ssa-structalias.c
@@ -1354,7 +1354,6 @@ scc_visit (constraint_graph_t graph, struct scc_info *si, unsigned int n)
 	  && si->dfs[VEC_last (unsigned, si->scc_stack)] >= my_dfs)
 	{
 	  bitmap scc = BITMAP_ALLOC (NULL);
-	  bool have_ref_node = n >= FIRST_REF_NODE;
 	  unsigned int lowest_node;
 	  bitmap_iterator bi;
 
@@ -1366,8 +1365,6 @@ scc_visit (constraint_graph_t graph, struct scc_info *si, unsigned int n)
 	      unsigned int w = VEC_pop (unsigned, si->scc_stack);
 
 	      bitmap_set_bit (scc, w);
-	      if (w >= FIRST_REF_NODE)
-		have_ref_node = true;
 	    }
 
 	  lowest_node = bitmap_first_set_bit (scc);
@@ -3283,14 +3280,11 @@ do_structure_copy (tree lhsop, tree rhsop)
 	   && (rhsp->type == SCALAR
 	       || rhsp->type == ADDRESSOF))
     {
-      tree lhsbase, rhsbase;
       HOST_WIDE_INT lhssize, lhsmaxsize, lhsoffset;
       HOST_WIDE_INT rhssize, rhsmaxsize, rhsoffset;
       unsigned k = 0;
-      lhsbase = get_ref_base_and_extent (lhsop, &lhsoffset,
-					 &lhssize, &lhsmaxsize);
-      rhsbase = get_ref_base_and_extent (rhsop, &rhsoffset,
-					 &rhssize, &rhsmaxsize);
+      get_ref_base_and_extent (lhsop, &lhsoffset, &lhssize, &lhsmaxsize);
+      get_ref_base_and_extent (rhsop, &rhsoffset, &rhssize, &rhsmaxsize);
       for (j = 0; VEC_iterate (ce_s, lhsc, j, lhsp);)
 	{
 	  varinfo_t lhsv, rhsv;
@@ -3640,11 +3634,9 @@ find_func_aliases (gimple origt)
 	  get_constraint_for (gimple_phi_result (t), &lhsc);
 	  for (i = 0; i < gimple_phi_num_args (t); i++)
 	    {
-	      tree rhstype;
 	      tree strippedrhs = PHI_ARG_DEF (t, i);
 
 	      STRIP_NOPS (strippedrhs);
-	      rhstype = TREE_TYPE (strippedrhs);
 	      get_constraint_for (gimple_phi_arg_def (t, i), &rhsc);
 
 	      for (j = 0; VEC_iterate (ce_s, lhsc, j, c); j++)
@@ -5681,8 +5673,6 @@ ipa_pta_execute (void)
   /* Build the constraints.  */
   for (node = cgraph_nodes; node; node = node->next)
     {
-      unsigned int varid;
-
       /* Nodes without a body are not interesting.  Especially do not
          visit clones at this point for now - we get duplicate decls
 	 there for inline clones at least.  */
@@ -5696,8 +5686,8 @@ ipa_pta_execute (void)
       if (node->local.externally_visible)
 	continue;
 
-      varid = create_function_info_for (node->decl,
-					cgraph_node_name (node));
+      create_function_info_for (node->decl,
+				cgraph_node_name (node));
     }
 
   for (node = cgraph_nodes; node; node = node->next)