re PR lto/61886 (LTO breaks fread with _FORTIFY_SOURCE=2)

	PR ipa/61886
	* lto-cgraph.c (compute_ltrans_boundary): Add transparent alias targets
	into the boundary.

From-SVN: r231430

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 55f89c9..4ee6a32 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,6 +1,12 @@
 2015-12-08  Jan Hubicka  <hubicka@ucw.cz>
 
        PR ipa/61886
+       * lto-cgraph.c (compute_ltrans_boundary): Add transparent alias targets
+       into the boundary.
+
+2015-12-08  Jan Hubicka  <hubicka@ucw.cz>
+
+       PR ipa/61886
        * varpool.c (varpool_node::get_availability): Recurse only on
        weakrefs with definition in the target.
        (symbol_table::remove_unreferenced_decls): Keep aliases in the boundary.

diff --git a/gcc/lto-cgraph.c b/gcc/lto-cgraph.c
index e1c2595..62e5454 100644 (file)
--- a/gcc/lto-cgraph.c
+++ b/gcc/lto-cgraph.c
@@ -972,6 +972,15 @@ compute_ltrans_boundary (lto_symtab_encoder_t in_encoder)
       if (cnode
          && cnode->thunk.thunk_p)
        add_node_to (encoder, cnode->callees->callee, false);
+      while (node->transparent_alias && node->analyzed)
+       {
+         node = node->get_alias_target ();
+         if (is_a <cgraph_node *> (node))
+           add_node_to (encoder, dyn_cast <cgraph_node *> (node),
+                        false);
+         else
+           lto_symtab_encoder_encode (encoder, node);
+       }
     }
   lto_symtab_encoder_delete (in_encoder);
   return encoder;