* cgraph.h (+varpool_can_remove_if_no_refs): Move here from ...;

	when !flag_toplevel_reorder do not remove unless variable is
	COMDAT or ARTIFICIAL.
	* ipa.c (varpool_can_remove_if_no_refs): ... here.
	(cgraph_remove_unreachable_nodes): Only analyzed nodes needs to stay.
	* cgraphunit.c (cgraph_analyze_functions): Dump varpool, too.
	* varpool.c (decide_is_variable_needed): Do not handle visibility issues.
	(varpool_finalize_decl): Likewise.
	(varpool_remove_unreferenced_decls): Use varpool_mark_needed_node; update
	outdated comment on DECL_RTL_SET_P check.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@166812 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 12 insertions, 0 deletions

diff --git a/gcc/cgraph.h b/gcc/cgraph.h
index 2b7ed4b8985..0334a154824 100644
--- a/gcc/cgraph.h
+++ b/gcc/cgraph.h
@@ -928,6 +928,18 @@ cgraph_can_remove_if_no_direct_calls_p (struct cgraph_node *node)
   return !node->address_taken && cgraph_can_remove_if_no_direct_calls_and_refs_p (node);
 }
 
+/* Return true when function NODE can be removed from callgraph
+   if all direct calls are eliminated.  */
+
+static inline bool
+varpool_can_remove_if_no_refs (struct varpool_node *node)
+{
+  return (!node->force_output && !node->used_from_other_partition
+	  && (flag_toplevel_reorder || DECL_COMDAT (node->decl)
+	      || DECL_ARTIFICIAL (node->decl))
+  	  && (DECL_COMDAT (node->decl) || !node->externally_visible));
+}
+
 /* Return true when all references to VNODE must be visible in ipa_ref_list.
    i.e. if the variable is not externally visible or not used in some magic
    way (asm statement or such).