[Bug tree-optimization/50735] [4.7 Regression] gcc.dg/torture/vector-2.c:52:1: ICE: verify_ssa failed at -O1 and above

["jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50735

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

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

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-10-15 10:48:12 UTC ---
Created attachment 25509
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25509
gcc47-pr50735.patch

Untested fix.  Alternatively we could do:
                  /* If PARM was addressable, move that flag over
                     to the local copy, as its address will be taken,
                     not the PARMs.  Keep the parms address taken
                     as we'll query that flag during gimplification.  */
                  if (TREE_ADDRESSABLE (parm))
                    {
                      local = create_tmp_var (type, get_name (parm));
                      TREE_ADDRESSABLE (local) = 1;
                    }
                  else
                    local = create_tmp_reg (type, get_name (parm));
                  DECL_IGNORED_P (local) = 0;