Set DECL_PT_UID for merged variables in IPA ICF (PR70856).

	PR fortran/70856
	* ipa-icf.c (sem_variable::merge): Set DECL_PT_UID for
	merged variables.

From-SVN: r236375

gcc/ChangeLog

+2016-05-18  Martin Liska  <mliska@suse.cz>
+
+	PR fortran/70856
+	* ipa-icf.c (sem_variable::merge): Set DECL_PT_UID for
+	merged variables.
+
 2016-05-18  Richard Biener  <rguenther@suse.de>
 
 	* lto-streamer.h (LTO_major_version): Bump to 6.

gcc/ipa-icf.c

@@ -2258,6 +2258,8 @@ sem_variable::merge (sem_item *alias_item)
 
       varpool_node::create_alias (alias_var->decl, decl);
       alias->resolve_alias (original);
+      if (DECL_PT_UID_SET_P (original->decl))
+	SET_DECL_PT_UID (alias->decl, DECL_PT_UID (original->decl));
 
       if (dump_file)
 	fprintf (dump_file, "Unified; Variable alias has been created.\n\n");