matrix-reorg.c (analyze_matrix_allocation_site): Remove unused malloc_fname variable.

	* 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.

From-SVN: r154726

1 files changed, 9 insertions, 25 deletions

diff --git a/gcc/tree-inline.c b/gcc/tree-inline.c
index 2991c9e..a70b5b1c 100644
--- a/gcc/tree-inline.c
+++ b/gcc/tree-inline.c
@@ -118,7 +118,7 @@ eni_weights eni_time_weights;
 
 /* Prototypes.  */
 
-static tree declare_return_variable (copy_body_data *, tree, tree, tree *);
+static tree declare_return_variable (copy_body_data *, tree, tree);
 static void remap_block (tree *, copy_body_data *);
 static void copy_bind_expr (tree *, int *, copy_body_data *);
 static tree mark_local_for_remap_r (tree *, int *, void *);
@@ -256,10 +256,8 @@ tree
 remap_decl (tree decl, copy_body_data *id)
 {
   tree *n;
-  tree fn;
 
   /* We only remap local variables in the current function.  */
-  fn = id->src_fn;
 
   /* See if we have remapped this declaration.  */
 
@@ -590,7 +588,6 @@ remap_block (tree *block, copy_body_data *id)
 {
   tree old_block;
   tree new_block;
-  tree fn;
 
   /* Make the new block.  */
   old_block = *block;
@@ -607,8 +604,6 @@ remap_block (tree *block, copy_body_data *id)
   					&BLOCK_NONLOCALIZED_VARS (new_block),
 					id);
 
-  fn = id->dst_fn;
-
   if (id->transform_lang_insert_block)
     id->transform_lang_insert_block (new_block);
 
@@ -2533,13 +2528,11 @@ initialize_inlined_parameters (copy_body_data *id, gimple stmt,
    is set only for CALL_EXPR_RETURN_SLOT_OPT.  MODIFY_DEST, if non-null,
    was the LHS of the MODIFY_EXPR to which this call is the RHS.
 
-   The return value is a (possibly null) value that is the result of the
-   function as seen by the callee.  *USE_P is a (possibly null) value that
-   holds the result as seen by the caller.  */
+   The return value is a (possibly null) value that holds the result
+   as seen by the caller.  */
 
 static tree
-declare_return_variable (copy_body_data *id, tree return_slot, tree modify_dest,
-			 tree *use_p)
+declare_return_variable (copy_body_data *id, tree return_slot, tree modify_dest)
 {
   tree callee = id->src_fn;
   tree caller = id->dst_fn;
@@ -2551,10 +2544,7 @@ declare_return_variable (copy_body_data *id, tree return_slot, tree modify_dest,
   /* We don't need to do anything for functions that don't return
      anything.  */
   if (!result || VOID_TYPE_P (callee_type))
-    {
-      *use_p = NULL_TREE;
-      return NULL_TREE;
-    }
+    return NULL_TREE;
 
   /* If there was a return slot, then the return value is the
      dereferenced address of that object.  */
@@ -2705,8 +2695,7 @@ declare_return_variable (copy_body_data *id, tree return_slot, tree modify_dest,
   /* Remember this so we can ignore it in remap_decls.  */
   id->retvar = var;
 
-  *use_p = use;
-  return var;
+  return use;
 }
 
 /* Callback through walk_tree.  Determine if a DECL_INITIAL makes reference
@@ -3506,7 +3495,7 @@ get_indirect_callee_fndecl (struct cgraph_node *node, gimple stmt)
 static bool
 expand_call_inline (basic_block bb, gimple stmt, copy_body_data *id)
 {
-  tree retvar, use_retvar;
+  tree use_retvar;
   tree fn;
   struct pointer_map_t *st, *dst;
   tree return_slot;
@@ -3725,7 +3714,7 @@ expand_call_inline (basic_block bb, gimple stmt, copy_body_data *id)
     }
 
   /* Declare the return variable for the function.  */
-  retvar = declare_return_variable (id, return_slot, modify_dest, &use_retvar);
+  use_retvar = declare_return_variable (id, return_slot, modify_dest);
 
   /* Add local vars in this inlined callee to caller.  */
   t_step = id->src_cfun->local_decls;
@@ -3981,7 +3970,6 @@ unsigned int
 optimize_inline_calls (tree fn)
 {
   copy_body_data id;
-  tree prev_fn;
   basic_block bb;
   int last = n_basic_blocks;
   struct gimplify_ctx gctx;
@@ -3998,12 +3986,8 @@ optimize_inline_calls (tree fn)
   id.src_node = id.dst_node = cgraph_node (fn);
   id.dst_fn = fn;
   /* Or any functions that aren't finished yet.  */
-  prev_fn = NULL_TREE;
   if (current_function_decl)
-    {
-      id.dst_fn = current_function_decl;
-      prev_fn = current_function_decl;
-    }
+    id.dst_fn = current_function_decl;
 
   id.copy_decl = copy_decl_maybe_to_var;
   id.transform_call_graph_edges = CB_CGE_DUPLICATE;