re PR lto/78407 (LTO breaks separate overriding of symbol aliases)

	PR lto/78407
	* symtab.c (symtab_node::equal_address_to): Fix comparing of
	interposable aliases.

From-SVN: r244612

gcc/ChangeLog

+2017-01-17  Jan Hubicka  <hubicka@ucw.cz>
+
+	PR lto/78407
+	* symtab.c (symtab_node::equal_address_to): Fix comparing of
+	interposable aliases.
+
 2017-01-18  Peter Bergner  <bergner@vnet.ibm.com>
 
 	PR target/78516

gcc/symtab.c

@@ -1989,13 +1989,12 @@ symtab_node::equal_address_to (symtab_node *s2, bool memory_accessed)
   if (rs1 != rs2 && avail1 >= AVAIL_AVAILABLE && avail2 >= AVAIL_AVAILABLE)
     binds_local1 = binds_local2 = true;
 
-  if ((binds_local1 ? rs1 : this)
-       == (binds_local2 ? rs2 : s2))
+  if (binds_local1 && binds_local2 && rs1 == rs2)
     {
       /* We made use of the fact that alias is not weak.  */
-      if (binds_local1 && rs1 != this)
+      if (rs1 != this)
         refuse_visibility_changes = true;
-      if (binds_local2 && rs2 != s2)
+      if (rs2 != s2)
         s2->refuse_visibility_changes = true;
       return 1;
     }