Aw: Re: Scalarization of simplification of constant expressions?

[Harald Anlauf]

Hi Paul,
 
> Yes, there is a scalarizer for elemental calls: expr.c(scalarize_intrinsic_call) first appears in 2007.
 
thanks for pointing this out.
 
However, can you elaborate a little bit on how to use it?
 
A grep show just two places where it is used, and only in expr.c:
 
 
In gfc_simplify_expr:
 

      if (p->expr_type == EXPR_FUNCTION)
    {
      if (p->symtree)
        isym = gfc_find_function (p->symtree->n.sym->name);
      if (isym && isym->elemental)
        scalarize_intrinsic_call (p, false);
    }
 
 

In gfc_check_init_expr:
 

    /* Try to scalarize an elemental intrinsic function that has an
       array argument.  */
    isym = gfc_find_function (e->symtree->n.sym->name);
    if (isym && isym->elemental
        && (t = scalarize_intrinsic_call (e, true)))
      break;
 
 
Do you have an example how to apply it?
 
Thanks,
Harald