[Bug tree-optimization/60899] undef reference generated with -fdevirtualize-speculatively
hubicka at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Sun Apr 20 07:23:00 GMT 2014
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60899
--- Comment #5 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
I am running benchmarks I do not want to disturb, but the following should fix
the problem.
$ svn diff ../../gcc/gimple-fold.c
Index: ../../gcc/gimple-fold.c
===================================================================
--- ../../gcc/gimple-fold.c (revision 209526)
+++ ../../gcc/gimple-fold.c (working copy)
@@ -105,7 +105,9 @@ can_refer_decl_in_current_unit_p (tree d
external var. */
if (!from_decl
|| TREE_CODE (from_decl) != VAR_DECL
- || !DECL_EXTERNAL (from_decl)
+ || (!DECL_EXTERNAL (from_decl)
+ && (vnode = varpool_get_node (from_decl)) != NULL
+ && vnode->definition)
|| (flag_ltrans
&& symtab_get_node (from_decl)->in_other_partition))
return true;
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