Prevent inliner from removing aliases of used comdats

[Jan Hubicka]

Hi,
can_remove_node_now_p has two thikos in it that makes it to remove aliases of 
comdats that eventually may lead to unresolved symbols.
Fixed thus.

Bootstrapped/regtested x86_64-linux, comitted.
Honza
Index: ChangeLog
===================================================================
--- ChangeLog   (revision 178808)
+++ ChangeLog   (working copy)
@@ -1,3 +1,8 @@
+2011-09-13  Jan Hubicka  <j...@suse.cz>
+
+       PR other/49533
+       * ipa-inline-transform.c (can_remove_node_now_p): Fix thunkos.
+
 2011-09-13  Paul Brook  <p...@codesourcery.com>
  
        * config/arm/arm.h (ASM_PREFERRED_EH_DATA_FORMAT): Define.
Index: ipa-inline-transform.c
===================================================================
--- ipa-inline-transform.c      (revision 178808)
+++ ipa-inline-transform.c      (working copy)
@@ -120,8 +120,8 @@ can_remove_node_now_p (struct cgraph_nod
     return true;
   for (next = node->same_comdat_group;
        next != node; next = next->same_comdat_group)
-    if (node->callers && node->callers != e
-       && !can_remove_node_now_p_1 (node))
+    if ((next->callers && next->callers != e)
+       || !can_remove_node_now_p_1 (next))
       return false;
   return true;
 }