* lto-symtab.c (lto_cgraph_replace_node): Handle aliases.

	(lto_symtab_resolve_can_prevail_p): Also alias of cgraph node
	with body can prevail.
	(lto_symtab_resolve_symbols): Use cgraph_get_node_or_alias.
	(lto_symtab_merge_cgraph_nodes_1): Do not remove nodes from aliases.
	* cgraph.c (cgraph_get_node_or_alias): New function.
	* cgraph.h (cgraph_get_node_or_alias): Declare.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@161877 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 23 insertions, 0 deletions

diff --git a/gcc/cgraph.c b/gcc/cgraph.c
index aaa50b607d2..37367695606 100644
--- a/gcc/cgraph.c
+++ b/gcc/cgraph.c
@@ -604,6 +604,29 @@ cgraph_add_thunk (tree alias, tree decl, bool this_adjusting,
    is assigned.  */
 
 struct cgraph_node *
+cgraph_get_node_or_alias (tree decl)
+{
+  struct cgraph_node key, *node = NULL, **slot;
+
+  gcc_assert (TREE_CODE (decl) == FUNCTION_DECL);
+
+  if (!cgraph_hash)
+    return NULL;
+
+  key.decl = decl;
+
+  slot = (struct cgraph_node **) htab_find_slot (cgraph_hash, &key,
+						 NO_INSERT);
+
+  if (slot && *slot)
+    node = *slot;
+  return node;
+}
+
+/* Returns the cgraph node assigned to DECL or NULL if no cgraph node
+   is assigned.  */
+
+struct cgraph_node *
 cgraph_get_node (tree decl)
 {
   struct cgraph_node key, *node = NULL, **slot;