Do not create a constprop clone for calls_comdat_local nodes (PR ipa/80212).

2017-04-11  Martin Liska  <mliska@suse.cz>

	PR ipa/80212
	* ipa-cp.c (determine_versionability): Handle calls_comdat_local
	flags.

From-SVN: r246847

gcc/ChangeLog

+2017-04-11  Martin Liska  <mliska@suse.cz>
+
+	PR ipa/80212
+	* ipa-cp.c (determine_versionability): Handle calls_comdat_local
+	flags.
+
 2017-04-11  Martin Sebor  <msebor@redhat.com>
 
 	PR middle-end/80364

gcc/ipa-cp.c

@@ -614,6 +614,12 @@ determine_versionability (struct cgraph_node *node,
      decloned constructors, inlining is always better anyway.  */
   else if (node->comdat_local_p ())
     reason = "comdat-local function";
+  else if (node->calls_comdat_local)
+    {
+      /* TODO: call is versionable if we make sure that all
+	 callers are inside of a comdat group.  */
+      reason = "calls comdat-local function";
+    }
 
   if (reason && dump_file && !node->alias && !node->thunk.thunk_p)
     fprintf (dump_file, "Function %s/%i is not versionable, reason: %s.\n",