[Bug tree-optimization/54610] [4.8 Regression] FAIL: gcc.dg/tree-ssa/forwprop-22.c (internal compiler error) on x86 AVX targets

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54610

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2012-09-18
                 CC|                            |jakub at gcc dot gnu.org
         AssignedTo|unassigned at gcc dot       |jakub at gcc dot gnu.org
                   |gnu.org                     |
   Target Milestone|---                         |4.8.0
     Ever Confirmed|0                           |1

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-09-18 
08:02:00 UTC ---
The bug is obvious, vect_gen_perm_mask is not suitable for uses outside of the
vectorizer, it uses e.g. current_vector_size.