[Bug middle-end/36244] -ftree-parallelize-loops=4, vectorizer enabled, ICE

[rguenth at gcc dot gnu dot org]

------- Comment #2 from rguenth at gcc dot gnu dot org  2008-05-15 10:32 -------
Pragmatic fix:

Index: tree-ssa-alias.c
===================================================================
--- tree-ssa-alias.c    (revision 135330)
+++ tree-ssa-alias.c    (working copy)
@@ -3672,7 +3672,8 @@ new_type_alias (tree ptr, tree var, tree
     }

   set_symbol_mem_tag (ptr, ali);
-  TREE_READONLY (tag) = TREE_READONLY (var);
+  /* We cannot set TREE_READONLY on the new tag as this conflicts with
+     propagating call clobbered info.  */
   MTAG_GLOBAL (tag) = is_global_var (var);
 }



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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36244