[Bug middle-end/91166] [SVE] Unfolded ZIPs of constants

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91166

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Awww.

tree
fold_vec_perm (tree type, tree arg0, tree arg1, const vec_perm_indices &sel)
{
  unsigned int i;
  unsigned HOST_WIDE_INT nelts;
  bool need_ctor = false;

  if (!sel.length ().is_constant (&nelts))
    return NULL_TREE;

;)