lto-symtab.c (lto_cgraph_replace_node): Merge needed instead of force flags.

	* lto-symtab.c (lto_cgraph_replace_node): Merge needed instead of force flags.
	* cgraph.c (cgraph_add_thunk): Use mark_reachable_node.
	(cgraph_remove_node): Update.
	(cgraph_mark_needed_node): Remove.
	(cgraph_mark_force_output_node): New.
	(dump_cgraph_node): Do not dump needed flag.
	(cgraph_node_cannot_be_local_p_1): Update.
	(cgraph_can_remove_if_no_direct_calls_and_refs): Update.
	* cgraph.h (symtab_node_base): Add force_output flag.
	(cgraph_node): Remove needed flag.
	(varpool_node): Remove force_output flag.
	(cgraph_mark_needed_node): Remove.
	(cgraph_mark_force_output_node): New.
	(cgraph_only_called_directly_or_aliased_p,
	varpool_can_remove_if_no_refs, varpool_all_refs_explicit_p): Update.
	* ipa-cp.c (ipcp_generate_summary): Remove out of date assert.
	* cgraphunit.c (cgraph_decide_is_function_needed): rewrite.
	(cgraph_add_new_function); Update.
	(cgraph_mark_if_needed); Update.
	(verify_cgraph_node): Update.
	(cgraph_analyze_function): Alias target is reachable.
	(process_function_and_variable_attributes): Update: externally_visible
	flag makes function reachable.
	(cgraph_analyze_functions): Update dumping.
	* lto-cgraph.c (lto_output_node, lto_output_varpool_node,
	input_overwrite_node, input_varpool_node): Update streaming.
	* lto-streamer-out.c (produce_symtab): Use force_output.
	* ipa.c (process_references): Weakrefs must be processed.
	(cgraph_remove_unreachable_nodes): Likewise; update for new
	force_output flag.
	(varpool_externally_visible_p); Weakrefs are externally visible
	even if they are not.
	(function_and_variable_visibility): Update; when processing alias
	pair force the targets to be output.
	(whole_program_function_and_variable_visility): Use mark_reachable_node.
	* trans-mem.c (ipa_tm_mark_needed_node): Remove
	(ipa_tm_mark_force_output_node): New function.
	(ipa_tm_create_version_alias, ipa_tm_create_version): Update.
	* gimple-fold.c (can_refer_decl_in_current_unit_p): Be lax about aliases.
	* varasm.c (mark_decl_referenced): Update.
	(find_decl_and_mark_needed): Remove.
	(find_decl): New function.
	(weak_finish, finish_aliases_1, assemble_alias): Update; do not mark
	alias targets as needed.
	(dump_tm_clone_pairs): Update.
	* tree-inline.c (copy_bb): Update check.
	* symtab.c (dump_symtab_base): Dump force_output.
	* tree-ssa-structalias.c (ipa_pta_execute): Use force_output.
	* passes.c (execute_todo): Fix dumping.
	* varpool.c (decide_is_variable_needed, varpool_finalize_decl): Update.
	(varpool_analyze_pending_decls): Alias target is reachable.
	(varpool_create_variable_alias): Finalize weakrefs.

	* class.c (make_local_function_alias): Do not mark symbol referenced.

	* objc-acct.c (mark_referenced_methods); Use
	cgraph_mark_force_output_node.

	* gcc-interface/utils.c (gnat_write_global_declarations): Update for new
	force_output placement.

	* lto/lto-partition.c (partition_cgraph_node_p): Use force_output.

From-SVN: r186624

1 files changed, 6 insertions, 8 deletions

diff --git a/gcc/cgraph.c b/gcc/cgraph.c
index 8ba9c36..4588249 100644
--- a/gcc/cgraph.c
+++ b/gcc/cgraph.c
@@ -570,7 +570,7 @@ cgraph_add_thunk (struct cgraph_node *decl_node ATTRIBUTE_UNUSED,
   node->local.finalized = true;
 
   if (cgraph_decide_is_function_needed (node, decl))
-    cgraph_mark_needed_node (node);
+    cgraph_mark_reachable_node (node);
 
   if ((TREE_PUBLIC (decl) && !DECL_COMDAT (decl) && !DECL_EXTERNAL (decl))
       || (DECL_VIRTUAL_P (decl)
@@ -1362,7 +1362,7 @@ cgraph_remove_node (struct cgraph_node *node)
 
   /* Incremental inlining access removed nodes stored in the postorder list.
      */
-  node->needed = node->reachable = false;
+  node->symbol.force_output = node->reachable = false;
   for (n = node->nested; n; n = n->next_nested)
     n->origin = NULL;
   node->nested = NULL;
@@ -1518,9 +1518,9 @@ cgraph_mark_reachable_node (struct cgraph_node *node)
    external means.  */
 
 void
-cgraph_mark_needed_node (struct cgraph_node *node)
+cgraph_mark_force_output_node (struct cgraph_node *node)
 {
-  node->needed = 1;
+  node->symbol.force_output = 1;
   gcc_assert (!node->global.inlined_to);
   cgraph_mark_reachable_node (node);
 }
@@ -1642,8 +1642,6 @@ dump_cgraph_node (FILE *f, struct cgraph_node *node)
 	     (HOST_WIDEST_INT)node->count);
   if (node->origin)
     fprintf (f, " nested in: %s", cgraph_node_asm_name (node->origin));
-  if (node->needed)
-    fprintf (f, " needed");
   else if (node->reachable)
     fprintf (f, " reachable");
   if (gimple_has_body_p (node->symbol.decl))
@@ -2134,7 +2132,7 @@ static bool
 cgraph_node_cannot_be_local_p_1 (struct cgraph_node *node,
 				 void *data ATTRIBUTE_UNUSED)
 {
-  return !(!node->needed
+  return !(!node->symbol.force_output
 	   && ((DECL_COMDAT (node->symbol.decl)
 		&& !node->symbol.same_comdat_group)
 	       || !node->symbol.externally_visible));
@@ -2570,7 +2568,7 @@ cgraph_can_remove_if_no_direct_calls_and_refs_p (struct cgraph_node *node)
   if (DECL_EXTERNAL (node->symbol.decl))
     return true;
   /* When function is needed, we can not remove it.  */
-  if (node->needed || node->symbol.used_from_other_partition)
+  if (node->symbol.force_output || node->symbol.used_from_other_partition)
     return false;
   if (DECL_STATIC_CONSTRUCTOR (node->symbol.decl)
       || DECL_STATIC_DESTRUCTOR (node->symbol.decl))