varasm.c (set_implicit_section): New function.

	* varasm.c (set_implicit_section): New function.
	(resolve_unique_section): Use it to set implicit section
	for aliases, too.
	(get_named_text_section): Use symtab_get_node (decl)->implicit_section
	(default_function_section): Likewise.
	(decl_binds_to_current_def_p): Constify argument.
	* varasm.h (decl_binds_to_current_def_p): Update prototype.
	* asan.c (asan_protect_global): Use symtab_get_node (decl)->implicit_section.
	* symtab.c (dump_symtab_base): Dump implicit sections.
	(verify_symtab_base): Verify sanity of sectoins and comdats.
	(symtab_resolve_alias): Alias share the section of its target.
	(set_section_1): New function.
	(symtab_node::set_section): Move here, recurse to aliases.
	(verify_symtab): Check for duplicated symtab lists.
	* tree-core.h (implicit_section_name_p): Remove.
	* tree-vect-data-refs.c: Include varasm.h.
	(vect_can_force_dr_alignment_p): Fix conditional on when
	decl bints to current definition; use
	symtab_get_node (decl)->implicit_section.
	* cgraph.c (cgraph_make_node_local_1): Fix section set.
	* cgraph.h (struct symtab_node): Add implicit_section.
	(set_section): Rename to ...
	(set_section_for_node): ... this one.
	(set_section): Declare.
	* tree.h (DECL_HAS_IMPLICIT_SECTION_NAME_P): Remove.
	* lto-cgraph.c (lto_output_node, lto_output_varpool_node,
	input_overwrite_node, input_varpool_node): Stream implicit_section.
	* ipa.c (symtab_remove_unreachable_nodes): Do not check symtab before
	removal; it will fail in LTO.
	
	* vtable-class-hierarchy.c: Use symtab_get_node (var_decl)->implicit_section.
	* optimize.c (cdtor_comdat_group): Fix handling of aliases.
	(maybe_clone_body): Move symbol across comdat groups.
	* method.c (use_thunk): Copy implicit section flag.

	* go/go-gcc.cc (Gcc_backend::global_variable_set_init): Use
	symtab_get_node(var_decl)->implicit_section.

	* lto.c (read_cgraph_and_symbols): Remove unreachable symbols.
	(do_whole_program_analysis): Use verify_symtab.

From-SVN: r211434

1 files changed, 10 insertions, 10 deletions

diff --git a/gcc/lto-cgraph.c b/gcc/lto-cgraph.c
index a19197d..70e813d 100644
--- a/gcc/lto-cgraph.c
+++ b/gcc/lto-cgraph.c
@@ -501,10 +501,8 @@ lto_output_node (struct lto_simple_output_block *ob, struct cgraph_node *node,
       streamer_write_hwi_stream (ob->main_stream, ref);
     }
 
-  group = node->get_section ();
-  if (group)
-    section = TREE_STRING_POINTER (group);
-  else
+  section = node->get_section ();
+  if (!section)
     section = "";
   lto_output_data_stream (ob->main_stream, section, strlen (section) + 1);
 
@@ -521,6 +519,7 @@ lto_output_node (struct lto_simple_output_block *ob, struct cgraph_node *node,
   bp_pack_value (&bp, node->forced_by_abi, 1);
   bp_pack_value (&bp, node->unique_name, 1);
   bp_pack_value (&bp, node->body_removed, 1);
+  bp_pack_value (&bp, node->implicit_section, 1);
   bp_pack_value (&bp, node->address_taken, 1);
   bp_pack_value (&bp, tag == LTO_symtab_analyzed_node
 		 && symtab_get_symbol_partitioning_class (node) == SYMBOL_PARTITION
@@ -585,6 +584,7 @@ lto_output_varpool_node (struct lto_simple_output_block *ob, varpool_node *node,
   bp_pack_value (&bp, node->forced_by_abi, 1);
   bp_pack_value (&bp, node->unique_name, 1);
   bp_pack_value (&bp, node->body_removed, 1);
+  bp_pack_value (&bp, node->implicit_section, 1);
   bp_pack_value (&bp, node->writeonly, 1);
   bp_pack_value (&bp, node->definition, 1);
   alias_p = node->alias && (!boundary_p || node->weakref);
@@ -631,10 +631,8 @@ lto_output_varpool_node (struct lto_simple_output_block *ob, varpool_node *node,
       streamer_write_hwi_stream (ob->main_stream, ref);
     }
 
-  group = node->get_section ();
-  if (group)
-    section = TREE_STRING_POINTER (group);
-  else
+  section = node->get_section ();
+  if (!section)
     section = "";
   lto_output_data_stream (ob->main_stream, section, strlen (section) + 1);
 
@@ -1054,6 +1052,7 @@ input_overwrite_node (struct lto_file_decl_data *file_data,
   node->forced_by_abi = bp_unpack_value (bp, 1);
   node->unique_name = bp_unpack_value (bp, 1);
   node->body_removed = bp_unpack_value (bp, 1);
+  node->implicit_section = bp_unpack_value (bp, 1);
   node->address_taken = bp_unpack_value (bp, 1);
   node->used_from_other_partition = bp_unpack_value (bp, 1);
   node->lowered = bp_unpack_value (bp, 1);
@@ -1194,7 +1193,7 @@ input_node (struct lto_file_decl_data *file_data,
   else
     node->same_comdat_group = (symtab_node *) (intptr_t) LCC_NOT_FOUND;
   if (section)
-    node->set_section (section);
+    node->set_section_for_node (section);
 
   if (node->thunk.thunk_p)
     {
@@ -1251,6 +1250,7 @@ input_varpool_node (struct lto_file_decl_data *file_data,
   node->forced_by_abi = bp_unpack_value (&bp, 1);
   node->unique_name = bp_unpack_value (&bp, 1);
   node->body_removed = bp_unpack_value (&bp, 1);
+  node->implicit_section = bp_unpack_value (&bp, 1);
   node->writeonly = bp_unpack_value (&bp, 1);
   node->definition = bp_unpack_value (&bp, 1);
   node->alias = bp_unpack_value (&bp, 1);
@@ -1277,7 +1277,7 @@ input_varpool_node (struct lto_file_decl_data *file_data,
     node->same_comdat_group = (symtab_node *) (intptr_t) LCC_NOT_FOUND;
   section = read_string_cst (ib);
   if (section)
-    node->set_section (section);
+    node->set_section_for_node (section);
   node->resolution = streamer_read_enum (ib, ld_plugin_symbol_resolution,
 					        LDPR_NUM_KNOWN);
   gcc_assert (flag_ltrans