[Bug rtl-optimization/47414] [4.6 Regression] wrong code with -O -freorder-blocks -fschedule-insns2 -fno-early-inlining -fstrict-aliasing -ftracer

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47414

Richard Guenther <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
         AssignedTo|unassigned at gcc dot       |rguenth at gcc dot gnu.org
                   |gnu.org                     |

--- Comment #5 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-01-24 16:34:03 UTC ---
Index: tree-ssa-alias.c
===================================================================
--- tree-ssa-alias.c    (revision 169155)
+++ tree-ssa-alias.c    (working copy)
@@ -808,7 +808,7 @@ indirect_ref_may_alias_decl_p (tree ref1
     return aliasing_component_refs_p (ref1, TREE_TYPE (ptrtype1),
                                      ref1_alias_set, base1_alias_set,
                                      offset1, max_size1,
-                                     ref2, TREE_TYPE (base2),
+                                     ref2, TREE_TYPE (reference_alias_ptr_type
(ref2)),
                                      ref2_alias_set, base2_alias_set,
                                      offset2, max_size2, true);


fixes it.