[PATCH][ARM] Do not call covert during RTL expansion

[Richard Guenther]

convert is supposed to be called only from frontend code as it
may raise errors.

The call in neon_dereference_pointer is from RTL expansion
(and not necessary).

Fixed as follows, I built a cross-cc1 for checking.

Ok?

Thanks,
Richard.

2012-03-12  Richard Guenther  <rguent...@suse.de>

        * config/arm/arm.c (neon_dereference_pointer): Do not call
        covert during RTL expansion.

Index: gcc/config/arm/arm.c
===================================================================
*** gcc/config/arm/arm.c        (revision 185220)
--- gcc/config/arm/arm.c        (working copy)
*************** neon_dereference_pointer (tree exp, enum
*** 20637,20645 ****
    array_type = build_array_type (elem_type, build_index_type (upper_bound));
  
    /* Dereference EXP using that type.  */
-   exp = convert (build_pointer_type (array_type), exp);
    return fold_build2 (MEM_REF, array_type, exp,
!                     build_int_cst (TREE_TYPE (exp), 0));
  }
  
  /* Expand a Neon builtin.  */
--- 20637,20644 ----
    array_type = build_array_type (elem_type, build_index_type (upper_bound));
  
    /* Dereference EXP using that type.  */
    return fold_build2 (MEM_REF, array_type, exp,
!                     build_int_cst (build_pointer_type (array_type), 0));
  }
  
  /* Expand a Neon builtin.  */